Scan Lab System
Electrical Machines
Laboratory
TERCO SCAN LAB SYSTEM
For more than 40 years Terco has developed and sold electrical machines for technical education,
and our systems are installed in schools all over the world.
During the development of the Scan Lab System, we have put together all our expertise and
experience and built the most complete system on the market.
Scan Lab is completely modular, and the various modules can be bought separately and
integrated as the demand arises. This enhances the use of Scan Lab and makes it flexible and
economical.
All the electrical machines as well as the power electronics have been chosen to take industrial
standards into consideration. Terco Scan Lab is accurate. Too small electrical machines give
unrealistic measuring values. We have carefully considered this by optimizing the winding data of
the machines and by choosing an effect of approx. 400 W. The losses in percent for this size of
machines, are not especially high compared with the total power.
SAFETY
All electric wiring is galvanically isolated and protected in case of wrong doing. The banana
terminals are of safety type.
SERVICE
Terco have manufactured thousands of electrical machine systems for training purposes since
the early sixties, systems, which have been delivered to countries all over the world. Most of the
systems are still in operation. In spite of this fact it is not very often we have to carry out service
or repair. However, should the need occur, our well trained service personnel will always be there
to support you.
QUALITY CONTROL
All equipment is carefully checked and after approval provided with TERCO's well known quality
mark, a sign of safety and security for our customers.
TRAINING COURSES
Terco organises training courses for most of the equipment both in house or at the customer's
own site. Most of our courses are especially designed to teach you how to handle the equipment
in the most efficient way. These courses are often a very good investment.
DOCUMENTATION
Every shipment includes comprehensive documentation including course literature and a teacher
guide and manual.
Scan Lab System – Electrical Machines Laboratory
Contents
Page
Terco Scan Lab System
2
Brakes & Torque-measurements
4–5
Test Machines
6–8
Power Supplies
9
Load Units
10
Phasing Instruments
11
Accessories
12–13
Switch Panels
13
Laboratory Flexes and Flex Stand
13
Electrical Measuring Instruments
14–17
Power Electronics and Drives
18–21
Transformers
21
Measuring and Data Acquisition with PC
22–23
Equipment Lists
24–25
Sectioned Motors
26
Experiment Manuals
27
Compact Drive
28–29
Terco Electrical Machine Systems
30–31
Laboratory Lay-out
32
Electrical Power Distribution System
33
Guarantee & Terms
34
Terco reserves the right to make changes in the design and modifications or improvements of the products
at any time without incurring any obligations.
3
Scan Lab System – Electrical Machines Laboratory
Brakes & Torque-measurements
The measurement of the torque is vital when studying electrical machines. Specially important is to have high accuracy
from zero revolutions to the top speed. Terco has developed two completely new measuring systems. One is an electric
brake together with a DC-machine for simpler measurements, and one is a more advanced system with possibility of
monitoring and control with PC.
SM 2643
SM 2641
SM
2613
SM
2613
SM 2640
MV 1052
MV 1052 Torque Measuring Unit
MV 1052 is a modern torque meter based on the latest computer technology. It comprises an opto electronic transducer
and an electronic control and display unit. The transducer consists of a torsion shaft. The torsion is measured optically
and is converted into torque. The speed is also measured and with a very high accuracy. The torquemeter works down to
a relatively low speed. Torque, power and speed can be read easily on the display of the control units digital instruments.
From the control unit the field windings of the test motors can be controlled via a potentiometer on the front, or by remote
control. On the backpanel, there are outputs for plotter and computer.
Technical Data
Torque
Max mech load
Shaftpower
Speed
Brake control
Output for plotter/PC
Output for plotter/PC
Speed
Speed
Torque
Torque
Shaftpower
Shaftpower
Power supply
Shaft height
Power supply
0-10 Nm
25 Nm
2 kW
120-4000 rpm
Manually via pot. on front panel
0-195 V DC, 2 A
Remote with PC through
5 V terminal
5 V at 2000 rpm
5 V at 2000 rpm
5 V at 10 Nm
5 V at 10 Nm
5 V at 2 kW
5 V at 2 kW
220-240 V, 1-phase, 50-60 Hz
100 mm
220-240 V, 1-phase, 50-60 Hz
Dimensions
Accuracy
Torque
Transducer
Power
Weight
Speed unit
Control
Weight
≤
2%x 200 x 150 mm
300
≤
4 2%
kg
≤
1%x 340 x 150 mm
250
5 kg
Dimensions
Transducer
Weight
Control unit
Weight
300 x 200 x 150 mm
4 kg
250 x 340 x 150 mm
5 kg
The same equipment is also available for our Classic 1 kW Electrical Machines with shaft height 162 mm.
It is then called MV 1051.
4
Scan Lab System – Electrical Machines Laboratory
SM 2641
SM 2643
SM 2612
SM 2640
SM 2671
SM 2671 Brake Control Unit
The SM 2671 Brake Control Unit is designed to operate with one Terco DC-Machine + one Terco DC-Tacho Generator
(e.g. SM 2641 + SM 2612). The Control Unit is trimmed against the chosen machine and tacho generator to make it
possible to calculate the air gap torque in the DC-machine. With a tacho signal also speed and shaft power is calculated.
The result is displayed by three LCD-instruments.
Braking force is controlled by a potentiometer on the front.
To facilitate full braking force at high, medium, low speeds and close to standstill, the braking resistor can be configurated
by two jumpers placed in the front plate. The braking resistors are cooled by a built-in fan.
SM 2671 can also be trimmed to already existing DC-machine and tachometer generator.
Technical specifications
Factory trimmings
Braking Power
Speed indication
Torque indication
Power indication
Accuracy speed
Accuracy Nm and W
Machine connections
Tacho connections
Size W x D x H
Power supply
Weight approx.
Against specified DC-machine and tacho
Max 1500 W 30 min.
0-4000 rpm
0-12 Nm
0-2000 W
0.5 %
5 % or better
Four 4 mm safety terminals
Two 4 mm terminals
480 x 330 x 210 mm (inclined front)
220-240 V, 1-phase, 50-60 Hz
9 kg
Other input voltages available on request.
5
Scan Lab System – Electrical Machines Laboratory
Rotating machines – Motors & Generators
The size of the machines is carefully chosen to optimise price and performance. In our opinion 400 watt machines are
ideal. If the machines are smaller the performance of the machines will not be representative. The losses in percent are
still not especially high compared with the total power.
All machines have shaft height of 100 mm, and are provided with clutch, terminalbox with mimic diagram, 4 mm safety
terminals and a baseplate enabling stepless fastening on the machine bed.
Temperature safety class: vary between B to F (130-155°C).
Machines running as generators and motors
SM 2641 DC Machine with separate excitation winding
This DC machine has an open shunt winding, enabling SM 2641 to be
connected either for shunt excitation or for separate excitation, both as
motor and generator.
SM 2641 also has interpoles which improves the characteristics of the
machine. It is ideal to use together with DC-converters.
Technical Data
Power
Armature voltage
Armature current
Excitation
Temperature class
Dimension
Weight
400 W at 1500 rpm/Max 3000 rpm
0-300 V DC
3.5 A DC
190 V / 0.2 A
F (155°C)
400 x 250 x 200 mm
17 kg
SM 2643 DC Compound Machine
This machine has a shunt and a series winding, and can be connected
as shunt, series and compound motor or generator. It also has
interpoles which improves the performance of the machine.
Technical Data
Power:
Motor
Generator
Rotor
Excitation
Temperature class
Dimension
Weight
400 W at 1500 rpm
400 W at 1800 rpm
160 V 3.7 A DC
190 V 0.2 A DC
F (155°C)
400 x 250 x 200 mm
16 kg
SM 2646 DC Series Motor
400 W att 2200 rpm, 3.7 A.
Same design as SM 2643 above.
SM 2649 Flywheel
This is used in retardation tests for determining total friction losses, iron
losses and short circuit losses at different excitation levels. The Flywheel
is dynamically balanced and has a protective casing.
Technical Data
Dimensions
Weight
6
1150 x 200 x 70 mm
10 kg
Scan Lab System – Electrical Machines Laboratory
SM 2645 Slipring Synchronous/Asynchronous Machine
This is a universal slip ring 3-phase AC machine which can run as a
slip ring asynchronous motor, synchronous motor and synchronous
generator. When running in synchronous mode the rotor will be excitated
to 60 V / 3.5 A DC. During max. 30 min this can be increased to 5.5 A to
show important parameters.
Technical Data
Power
Speed
500 W
1400 rpm / 50 Hz
1700 rpm / 60 Hz
0.8
3 x 230 V AC
2.3 A
3 x 230 V AC, 2.3 A (nom)
60 V DC, 5.5 A (max)
F (155°C)
400 x 250 x 200 mm
15 kg
Cos phi
Stator voltage
Stator current
Rotor data
Rotor excitation
Temperature class
Dimension
Weight
Machines operated mainly as motors
SM 2644 Induction Motor Squirrel Cage
This is a normal 3 phase squirrel cage asynchronous motor with 4 poles.
With this motor not only the normal testing can be done, it is also suitable
to use together with a frequency converter.
Technical Data
Power
Speed
370 W
1400 rpm / 50 Hz
1700 rpm / 60 Hz
0.7
230 V / 400 V
2.1 / 1.2 A
270 x 230 x 200 mm
7 kg
Cos phi
Voltage
Current
Dimension
Weight
SM 2647 Reluctance Motor
400 W at 1500 rpm. Same design as 2644 above.
SM 2648 Universal Motor
This motor is very useful. It can be connected both to AC and DC power.
The rotor is, via brushes and commutators, connected in series with the
field winding.
Technical Data
Power
Speed
Voltage
Current
Dimension
Weight
370 W DC, 250 W AC
1500 rpm / 50 Hz
230 V AC / DC
2.5 A DC, 3.9 A AC
300 x 250 x 200 mm
14 kg
SM 2640 Machine Bed
The machine bed is designed to house three
machine modules in the SM 2600 module
group. The bed is equipped with rubber feet
and handles.
Technical Data
Dimensions
Weight
1150 x 200 x 70 mm
10 kg
7
Scan Lab System – Electrical Machines Laboratory
SM 2683 Dahlander Motor
In this motor the windings are arranged in such a way that by using different
connections the motor can run at two different speeds. Change of speed can
be done with contactors or by a camswitch (SM 2694).
Technical Data
Power
450 / 300 W
Speed
1400 / 2700 rpm / 50 Hz
1650 / 3200 rpm / 60 Hz
Voltage
D / YY 230 V 3-ph., 50-60 Hz
Current
Dimension
Weight
2.1 / 1.6 A
300 x 230 x 200 mm
9 kg
SM 2684 1-Phase Induction Motor with Start
and Run Capacitor
This motor is equipped with two capacitors. The start capacitor is disconnected at halfspeed, but allows for a higher start torque, whilst the run
capacitor is continuously connected and gives the motor good working
torque.
Technical Data
Power
370 W
Speed
1400 rpm / 50Hz
1670 rpm / 60 Hz
Voltage
230 V 1-phase, 50-60 Hz
Current
Dimension
Weight
2.9 A
300 x 290 x 200 mm
10 kg
SM 2685 1-Phase Induction Motor with Start Capacitor
This motor is equipped with operating winding and start winding. For higher
start torque the influence of the start winding is improved by use of a
capacitor which is disconnected through a centrifugal switch when working
speed has been reached.
Technical Data
Power
370 W
Speed
1400 rpm / 50 Hz
1670 rpm / 60 Hz
Voltage
230 V 1-phase, 50-60 Hz
Current
Dimension
Weight
4.4 A
300 x 290 x 200 mm
10 kg
SM 2686 Split - Phase Motor
A single phase motor having 2 windings. The start winding is disconnected
by means of a centrifugal switch when the motor has reached a fraction of
full speed.
Technical Data
Power
250 W
Speed
1400 rpm / 50 Hz
1700 rpm / 60 Hz
Voltage
230 V 1-phase, 50-60 Hz
Current
Dimension
Weight
3.1 A
300 x 250 x 200 mm
13 kg
SM 2688 Two Speed Induction Motor Squirrel Cage
This motor unlike SM 2683 has 2 separate windings for high and low speed.
Technical Data
Power
350 / 300 W
Speed
1400 / 900 rpm / 50 Hz
1700 / 1100 rpm / 60 Hz
Voltage
230 V 3-phase, 50-60 Hz
8
Current
Dimension
Weight
2.4/2.3 A
300 x 230 x 200 mm
9 kg
Scan Lab System – Electrical Machines Laboratory
Power Supplies
Power supply is essential for all excercises with electrical machines. The Scan Lab power supply is designed in such
a way that it can be used whenever power is needed within the school.
The Power Panel is made as a seperate module which increases the flexiblility of Scan Lab.
SM 2631 Power Supply Unit
Comprises one isolated 3-phase main transformer and
one variac transformer. The unit is mobil and connected
through a multipole cable to Terminal Unit SM 2635.
The voltage is varied by a knob on top of the unit. The
starter is controlled from the Terminal Unit. Different AC
and DC voltages are available from the Terminal Unit
SM 2635 (see below).
Technical Data
Primary supply
(changeable)
Primary fuses
Output connector
Connection
Dimensions
Weight
3 x 400 V, 50-60 Hz
3 x 230 V, 50-60 Hz
3 x 4 A slow
16-pole, 16 A
European connector 16 A
350 x 300 x 650 mm
50 kg
Note: The Power Supply Unit SM 2631 and the
Terminal Unit SM 2635 are part of each other and do
not work separately.
Technical Data
Fixed 3-phase voltage
SM 2635 Terminal Unit
The Terminal Unit is connected to the Power Supply Unit
SM 2631 by a multilead power receptacle. Since all heavy
and bulky equipment, which normally goes together with
a multifunction power supply, is placed in the Power
Supply Unit, the Terminal Unit, which is quite light, can
easily be placed on the laboratory table, beside, below or
on top of other equipment close to the experimental units.
The unit includes also a combined AC/DC machine starter.
3 x 230 V with neutral,
4 A, F fuses
Variable 3-phase voltage
3 x 0-230 V with neutral,
4 A, F fuses
Variable DC-voltage
0-300 V
6 A, F indirectly fused
Fixed DC-voltage
190 V
2 A, F fuse
Electronically controlled (phase)
DC-voltage:
0-190 V, 2 A, F fuse
Electronically controlled (PWM) DC-voltage for excitation of
AC-machine SM 2645 operating as synchronous machine:
Output DC
0-60 V, 5 A
Fusing
6 A, FF
R-starter group
3 steps + direct for DC/AC
slipring machines
Dimension
490 x 135 x 340 mm
Weight
10 kg
9
Scan Lab System – Electrical Machines Laboratory
Load Units
The loads are suitable to use with the Scan Lab System and other lab. experiments where these type of loads fit in.
SM 2676 Load Resistor Module
Load resistor SM 2676 contains 6 separate continuously variable resistors
with individual terminals. To be used for variable 3-phase , 1-phase or
DC loads.
Technical Data
Resistance
Rated current
Max. cont. load
Dimension
Weight
6 x 0-100 ohm
6 x 1.8 A
1.9 kW
450 x 280 x 280 mm
15 kg
SM 2672 Capacitive Load Module
This is a 3-phase capacitive load variable in 6 steps.
The unit can be used both for three and single phase.
Technical Data
Rated power
Capacitance
Voltage
Dimension
Weight
2.7 kVAr
3 x 48 µF
0 + 6 steps
250 V / phase AC
250 x 340 x 150 mm
3.5 kg
SM 2674 Inductive Load Module
This is a 3-phase inductive load variable in 6 steps. The unit can be used
both for three and single phase operation.
Technical Data
Rated power
Inductance
Voltage
Dimension
Weight
0.9 kVar
0.2-1.5 H / phase
0 + 6 steps
140 V / phase
250 x 340 x 150 mm
14 kg
SM 2637 VAr Controller
This unit is designed to be used together with Terco synchronous
machines rating 1-2 kVAr when these are used as VAr compensating
units or run as motors / generators with voltage stabilising ability.
Specifications
Voltage feedback from controlled
network
Field winding controlled voltage
Field winding controlled current
Supply voltage (1-phase)
Dim W x H x D
Weight (approx.)
10
3-ph 220-400 V
0-170 V DC
0-3 A (max) DC
220-240 V AC 50 / 60 Hz
250 x 340 x 150 mm
7 kg
Scan Lab System – Electrical Machines Laboratory
Phasing Instruments
SM 2670 Synchronizing Device
The equipment includes 1 zero voltmeter, 1 circuit breaker, 3 signal
lamps and terminal bolts.
With SM 2670 it is an easy matter to synchronise synchronous machines
to networks or to an other alternator.
General Data
Zero Voltmeter
Circuit Breaker
Synch. Lamps
Supply Voltage
Dimensions
Weight
2 x 140 V
16 A 500 V
130 V with resistor
220-240 / 127-140 V, 50-60 Hz
315 x 240 x 90 mm
3 kg
Other voltages can be supplied on request.
MV 1909 Synchronizing Unit
The unit includes 1 dual voltmeter, 1 dual frequency meter and a
synchroscope. To switch the synchronised supplies together, load switch
SM 2690 is required.
General Data
MV 1909-235
MV 1909-236
Dual Voltmeter
Dual Frequency Meter
Synchroscope
Supply Voltage
2 x 250 V
44-56 Hz
2 x 250 V
54-66 Hz
220-240 V /
127-140 V
350 x 140 x 160 mm
6.5 kg
220-240 V /
127-140 V
Dimensions
Weight
Phase Cop 2 Phase Sequence Indicator
Tester for determining the direction of rotation or phase sequence in
3-phase systems.
- 3 LEDs indicate whether or not the 3-phase conductors are live
- Very large voltage and frequency range
- Simple operation
- Rugged design
- Permanently connected cables with contact-protected connector plugs,
three plug-on test probes and one plug-on alligator clip
General Data
Voltage range
Frequency
Dimensions
Weight
90-660 V
45-1000 Hz
70 x 105 x 40 mm
0.3 kg
MV 1417 Terminal board with short-circuit buttons
Combined terminal and protector board for instruments. Current coils of
ammeters and wattmeters connected to the board through a normally
short-circuited contact which is opened during measurement. Opening of
the contacts for phase R, S, T is done with a robust push-button for each
phase. Reading of the instrument can be done only when the button is
pressed, which is of great advantage in the event of wrongly terminated
instruments. The terminal board is 4-pole with six terminals, two jacks
and three push-buttons marked R, S, T.
Dimensions
245 x 195 x 50 mm
Weight
1.5 kg
11
Scan Lab System – Electrical Machines Laboratory
Accessories
SM 2636 AC & DC Starter
This unit is a universal starter and can be used together with Scan Lab
Systems DC machines, and also with SM 2645 which is a AC slip-ring
motor.
Technical Data
Dimensions
Weight
350 x 255 x 150 mm
4 kg
SM 2638 Shunt Rheostat DC
To control field regulation of DC-machine SM 2641 and SM 2643.
Technical Data
Max current
Dimensions
Weight
0.3 A
140 x 140 x 150 mm
1 kg
SM 2639 Shunt Rheostat
To control rotor excitation of the slipring AC machine
SM 2545 when this machine operates as a synchronous machine.
Technical Data
Dimensions
Weight
215 x 190 x 230 mm
7.5 kg
SM 2612 Tachometergenerator
Technical Data
DC tacho
Dimensions
Weight
14 V / 1000 rpm
95 x 195 x 150 mm
1 kg
SM 2613 Protective cover
The same as SM 2612 but without tacho.
SM 2625 Revolution Counter
The instrument is enclosed in an universal case equipped with
connecting terminals.
SM 2625 is intended for use together with SM 2612 tachometer
generator including protective cover.
General Data
Measuring range
Data
Size of instrument
Accuracy
Dimensions
Weight
12
0-4000 rpm
1000 rpm at 14 V
144 x 144 mm
1.5 %
195 x 165 x 165 mm
2 kg
Scan Lab System – Electrical Machines Laboratory
SM 2690 Load Switch 3-Phase
Technical Data
Max. voltage
Max. current
Dimensions
Weight
500 V AC / 250 V DC
16 A
95 x 200 x 80 mm
1 kg
SM 2691 Reversing Switch 3-Phase
Technical Data
Max. voltage
Max. current
Dimensions
Weight
500 V AC
16 A
95 x 200 x 80 mm
1 kg
SM 2692 Y / D Switch
Technical Data
Max. voltage
Max. current
Dimensions
Weight
500 V AC
16 A
95 x 200 x 80 mm
1 kg
SM 2693 Selector Switch 3-phase
Technical Data
Max voltage
Max current
Dimensions
Weight
500 V AC / 250 V DC
16 A
95 x 200 x 80 mm
1 kg
SM 2694 Dahlander Switch
Technical Data
Max. voltage
Max. current
Dimensions
Weight
500 V AC
16 A
95 x 200 x 80 mm
1 kg
MV 1904 Flex Stand
for up to 200 cables. For suspension of laboratory flexes.
The stand has 12 slots between parallel tubes with space
for 10-15 laboratory flexes in each slot. Flexes of length
200 cm are suspended in a separate position above the
stand. This rigid stand has a heavy steel plate pedestal.
Technical Data
Height
1170 mm
Weight
9 kg
SM 2679 Set of experiments cables
Safety leads with 2 covered spring plugs of 4 mm
diameter, with stiff protection sockets covering the
plugs, and 4 mm diameter axial bushings moulded
with Polypropylen, fixed to 1.5 mm2 copper thread,
PVC isolateds, outer diameter 4 mm.
Standard set SM 2679
Length
Black
25 cm
4
50 cm
4
100 cm
6
200 cm
2
Red
4
4
6
2
Yellow or White
4
4
6
4
13
Scan Lab System – Electrical Machines Laboratory
Electrical Measuring Instruments
Terco Instruments are panel-type 96 x 96 mm, mounted in durable painted sheet metal enclosures having plastic feet.
The instruments have a 90˚ scale and are produced for temperatures between -20 and +50˚C.
Ammeters can take ten times the rated current for short duration and voltmeters twice the nominal voltage for a short
period. Test voltage -2 kV, AC. All instruments comply with IEC recommendations.
MV 1924 Ammeter
This ammeter is a moving coil instrument with zero in the centre of the scale. It is
used e.g. for determining the slip in slip-ring asynchronous machines. MV 1924 is
connected in the rotor circuit in one of the leads between the motor and the rotor
starter. By this means it is possible to determine the frequency and instantaneous
value of the rotor current. The slip can then be calculated.
General Data
Measuring range
Accuracy
Scale length
Dimensions
Weight
20-0-20 A (centre zero scale)
1.5
85 mm
220 x 117 x 90 mm
1.1 kg
MV 1922 Ammeter
Moving iron instrument.
Measuring ranges
Accuracy class
Dimensions
Weight
AC / DC 0-1-2 A
2.5
220 x 117 x 90 mm
1.1 kg
MV 1923 Ammeter
Moving iron instrument.
Measuring ranges
Accuracy class
Dimensions
Weight
AC / DC 0-6-12 A
2.5
220 x 117 x 90 mm
1.1 kg
MV 1926 Voltmeter
Moving iron instrument.
Measuring ranges
Accuracy class
Dimensions
Weight
AC / DC 0-50-250-500 V
2.5
220 x 117 x 90 mm
1.3 kg
MV 1974 Voltmeter
Voltmeter, moving coil
Measuring range
Accuracy class
Dimensions
Weight
14
0-±300 V with centre zero scale.
1.5
220 x 117 x 125 mm
2 kg
Scan Lab System – Electrical Machines Laboratory
MV 1927 Wattmeter, single-phase
Voltage ranges
Rated current
Supply voltage
Accuracy class
Dimensions
Weight
50-250-500 V
1A
180-260 V AC
1.5
220 x 117 x 125 mm
2 kg
MV 1928 Wattmeter, single-phase
Voltage ranges
Rated current
Supply voltage
Accuracy class
Dimensions
Weight
50-250-500 V
5A
180-260 V AC
1.5
220 x 117 x 125 mm
2 kg
MV 1929 Power Factor Meter
Three-phase instrument, symmetric load.
Measuring range
cap. 0.5 ... 1 ... 0.5 ind.
Current range
0-5 A
Voltage range
220 V ± 20 % 3-phase
Frequency range
40-65 Hz
Accuracy class
1.5
Dimensions
220 x 117 x 125 mm
Weight
2 kg
MV 1976 Power Factor Meter
Three-phase instrument, symmetric load.
Measuring range
cap. 0.5 ... 1 ... 0.5 ind.
Current range
0-5 A
Voltage range
380 V ± 20 % 3-phase
Frequency range
40-65 Hz
Accuracy class
1.5
Dimensions
220 x 117 x 125 mm
Weight
2 kg
MV 1930 Frequency Meter
Measuring range
Accuracy class
Dimensions
Weight
46-54 Hz
0.5
220 x 117 x 90 mm
1.2 kg
MV 1938 Frequency Meter
Measuring range
Accuracy class
Dimensions
Weight
56-64 Hz
0.5
220 x 117 x 90 mm
1.2 kg
MV 1931 Current Transformer
Primary 20-10-5 A / Sec.
Accuracy class
Dimensions
Weight
1A
1.0
220 x 117 x 135 mm
6 kg
15
Scan Lab System – Electrical Machines Laboratory
SM 2627 Universal Meter
With this useful unit voltage, current and power with difficult waveforms
can be measured individually with instantaneous value, TRMS value
or average value on the display or through terminals. Signal values and
signal terminals are galvanically isolated. The unit includes multiplexer
with two channels to make it possible to study voltage, current and
power on the same time on the display and also by an oscilloscope.
The digital instrument shows all values in percent (0-199.9 %).
Technical Data
Voltage
Current
Power
Instrument
Power supply
Dimensions
Weight
20, 50, 100, 500 V, AC / DC
1, 2, 5, 10 A, AC / DC
20 steps 50-2000 W
LCD 31/2 digit 0-199.9 %
230 V AC, 50-60 Hz
250 x 340 x 150 mm
2 kg
SM 2628 3-phase/1-phase Measuring Unit,
Voltage / Current / Power
This unit is designed to be used together with Terco electrical machines
rating 0.4-2 kVA.
The instrument functions can be used also for DC-quantities.
Specifications
Voltage with selector switch LL or L neutral
or DC-voltage
Current selector switch IL1, IL2 or IL3
Wattmeter for 1-ph or 3-ph (2-wattmeterm.)
Wattmeter for DC
Supply voltage (1-phase)
Dimensions
Weight
1-phase/3-phase,
127-400 V
0-6 A
0-4000 W (max)
0-2000 W (max)
220-240 V AC, 50-60 Hz
250 x 340 x 150 mm
6 kg
SM 2629 Instrument Unit
This unit is designed to be used together with the Terco Data
Acquisition Unit SM 2607. Normally the three measuring groups U1, I1,
P1, U2, I2, P2 and U3, I3, P3 are displayed on the PC-monitor. Here the
indications are displayed on LCD-instruments by selector switches for
unit and range. To be used when no PC is available.
Specifications
Selector switches for U1, U2, U3, I1, I2, I3,
P1, P2 and P3
Measuring ranges will be changed automatically via SM 2607 settings.
Voltage range
30-100-300 V
Current range
1-3-10 A
Power range (indicated 0-199 %)
6 scale combinations
f.s.d. 30-3000 W
Supply voltage via multi-lead cable from SM 2607
Dimensions
Weight
16
250 x 340 x 150 mm
6 kg
Scan Lab System – Electrical Machines Laboratory
MV 4212 Vector Visualizer Unit
This unit is used together with an
oscilloscope to show the Park vector
of voltage, current, and stator flux.
The resultant graphs show added
information on the theoretical and
actual function of the power supply
converter which can be used for
analysis, fault tracing, and for
educational training. The supply voltage
and current, can be studied as a
function of time in conjunction with
vector display. After setting the resistive
loss compensation, the signal at the
T-output is proportional to the electrical
torque supplied. This gives unique
information about the load torque which
is not available in normal installations.
Technical Data
Input voltage
Max phase current
Outputs
Max output voltages
Output impedance
3 x 0-415 V RMS without neutral
max ±500 V within linear range
±1000 V top value.
10 A ptp resp. 50 A ptp
X and Y components to either
U-, flux- or I-vector
Time function U, and I
Torque
±10 V within linear range
50 ohm
Synch. pulse
Bandwidth
RI-comp
Power supply
Dimensions
Weight
TTL level
DC - 100 kHz
0-10 %
220-240 V, 50 / 60 Hz
350 x 120 x 300 mm
4 kg
MV 1971 Diffprobe
The Terco Diffprobe is used when readings are taken from
an oscilloscope, and to effectively isolate the testobject from
the oscilloscope. With the diffprobe it is also possible to
readoff part voltages which are at different potentials.
Technical Data
Max output voltage from
the probe
Measuring range
x10
x100
Power
Frequency
Impedance in
Impedans out
Offset voltage
Dimensions
Weight
15 V ptp
Input voltages up to 120 V ptp
Input voltages up to 1200 V ptp
Two 9 V batteries
DC - 1 MHz
1 Mohm
500 ohm
Max 5 mV
120 x 65 x 40 mm
250 g incl. batteries
17
Scan Lab System – Electrical Machines Laboratory
Power Electronics & Drives
Terco has developed a complete system for learning Power Electronics suitable for Scan Lab.
The system includes modules which can be integrated independently into Scan Lab or other similar systems. A lot of care
has been taken to make the modules as easy to use and understand as possible.
SM 2678 Basic AC/DC Control Module
The Basic AC/DC Control is designed to be the first module
linking the power source to a load using SCRs to control without feed-back - the AC- or DC-voltage in order to study
the corresponding phenomena caused by phase control
together with separate or mixed R-, L- or C-loads.
Technical Data
Component blocks included:
- Diode
- Diode bridge
- Triac (including diac)
- Control potentiometer
- Resistive load bank
- Capacitive load bank
- Inductive load bank
- Overvoltage protections
- Automatic free-wheeling devices
Power supply
220-240 V 1-phase AC, 50-60 Hz
Dimension
250 x 340 x 150 mm
Weight
4 kg
To study the signals the SM 2678 is normally connected
to the measuring module SM 2607. If this module is not
available SM 2678 should be supplied from an isolating
transformer 230 V, > 100 VA which will make it possible to
use a standard 2-channel oscilloscope instead.
SM 2658 PWM DC-Machine Control Module
The unit is designed using MOSFET technology and shows
how to optimize:
- Speed
- Control
- Efficiency
on a DC-machine during dynamic conditions. The control
parameters - frequency, current and pulse width - can be
controlled manually, from a function generator or from a PC.
Parameters are selected by individual switches. Signal
terminals (0-10 V DC) are galvanically isolated from power
circuits.
Technical Data
Function principal
Max current
Terminal for excitation
Duty cycle
Frequency
Current limit
Loads
Control signal
Power supply
Dimension
Weight
18
1-quadrant
6A
190 V / 2A
0-100 %
200-13000 Hz
0-100 %
R/L active and passive
0-10 V
220-240 V 1-phase AC, 50-60 Hz
3 x 230 V 3-phase AC, 50-60 Hz
250 x 340 x 150 mm
6 kg
Scan Lab System – Electrical Machines Laboratory
SM 2651 1 Q DC-Control Module
The Scan Lab Rectifier Module operates in armature voltage
or tacho feedback mode as well as in open loop mode. It is
partly self adapting, and for this reason optimum stability can
be adjusted with the aid of only one potentiometer on the
front.
Technical Data
Principle of operation
Output voltage
Output current
Excitation
Feedback
Input voltage (supply)
1-Q self adapting
0-170 V DC
6A
190 V 2A
Tacho generator or
armature voltage
220-240 V 1-ph. AC, 50-60 Hz
Parameters
- Speed
- Current limit
- Stability (Gain)
- RI compensation
- Ramp up and down (Time)
- Speed max and min
Dimensions
250 x 340 x 150 mm
Weight
4 kg
SM 2652 4 Q DC-Control Module
Scan Lab 4 Q DC-Control Module is a
rectifier that operates in open loop,
armature voltage feedback, tacho feedback or torque feedback mode. The
rectifier includes overload and low speed
relays as well as a disconnectible
smoothing inductance. The unit has both
subcycle and delayed overload protection.
Operation modes
- Armature voltage feedback with forward
and reverse selection.
- Ramped input or tacho feedback with
bi-directional control (joystick) from the
speed control potentiometer, with direct
input of reference signal (no ramp).
Technical Data
Principle of operation
Output Voltage
Output current
Excitation
Feedback
Input voltage (supply)
4-Q double full bridges
0-170 V
6A
190 V 2A
Tacho generator or
armature voltage
220-240 V 1-ph. AC,
50-60 Hz
Parameters
- Speed
- Current limit
- Stability (Gain)
- RI compensation
- Ramp up and down (Time)
- Speed max and min
Dimensions
440 x 340 x 135 mm
Weight
7 kg
19
Scan Lab System – Electrical Machines Laboratory
SM 2661 AC-Control Module
This Scan Lab AC Control Module is a PWM flux vector
type frequency control, controlled by a microprocessor.
All power components are based on MOSFET technique.
Operating characteristics as well as braking method are
internally programmable.
Technical Data
Principle of operation
Output voltage
Output power
DC-link over voltage
Braking chopper
Input voltage (supply)
PWM-flux vector
3 x 0-300 V AC, 0-100 Hz
400-750 W
Blocking of inverter bridge
Optional (SM 2668)
3 x 220-240 V AC, 50-60 Hz
Parameters
- Speed
- Current limit
- Start voltage boost
- Ramp up/down
- Speed max / min.
Dimensions
Weight
250 x 340 x 150 mm
6 kg
SM 2668 Brake Chopper Module
The Scan Lab Brake Chopper Module is used together
with the AC-Control Module SM 2661 to provide a semi
4 Q mode of operation for induction motors. It is suitable
for testing both generators and motors in clockwise or
anti clockwise direction. Together with SM 2652 DCControl Module it is possible to mechanically synchronize
a DC-machine with an AC-machine and investigate the
full mechanical and electrical characteristics of both
machines, operating as motors as well as generators.
Technical Data
Brake voltage
(from SM 2661)
Control voltage
Mains supply voltage
Size of test machine
Dimension
Weight
20
300-380 V DC
0-5 V DC
220-240 V 1-phase AC,
50-60 Hz
Max 500 W
250 x 340 x 150 mm
4 kg
Scan Lab System – Electrical Machines Laboratory
SM 2593 Softstarter
By use of Softstarter SM 2593 current peaks can be avoided when starting AC-machines. This unit can also be used
together with Compact Drive SM 2500.
Technical Data
Principle of operation
Voltage
Max motor power
Elliptical torque control
through antiparallell triacs
3 x 230 V AC, 50-60 Hz
2 kW
Starting torque
Starting ramp
Dimensions
Weight
0-50 %
0.5-5.0 sek.
150 x 200 x 100 mm
2 kg
SM 2675 Diode Module
The diode module comprises nine power diodes, arranges in the blocks D1, D2 and D3, and one fast switch diode D4
with suitable connections and jumpers to make it possible to study:
1. Single diode operation
2. Two way transformers rectifier
3. Single phase bridge
4. Three way three pulse transformer rectifier
5. Three phase bridge
6. Six way six pulse transformers rectifier
7. Free-wheeling diode for PWM DC-converters
8. Voltage multiplier
Technical Data
Dimensions
Weight
250 x 340 x 150 mm
4 kg
Transformers
SM 2680 1-Phase Transformer
Suitable as stand alone exercise unit or to be used together with Scan
Lab System.
Technical Data
Ratio
Current
Power
PO
Dimensions
Weight
230/2 x 115 V
2A / winding
460 VA
23 W
165 x 145 x 205 mm
8 kg
SM 2681 3-Phase Transformer
Suitable as stand alone exercise unit or to be used together with Scan
Lab System.
Technical Data
Ratio
Connection forms
Y/Y 230/200 V, Y/D 230/230 V,
Y/Y 230/200 V, D/Y 133/200 V,
Power
PO
Current:
Dimensions:
Weight:
3 x 133 / 6 x 115 V
D/D 133/230 V
Y/Z 230/230 V
800 VA
27 W
2 A / winding
225 x 140 x 235 mm
14 kg
21
Scan Lab System – Electrical Machines Laboratory
Measuring
Measuring and
and Data
Data Acquisition
Acquisition with
with PC
PC
The increased
availability
of computers
the
schoolsmade
madeititnatural
natural to
to adopt
adopt our Classic
LabSystem
Systemto
to
The increased
use use
andand
availability
of computers
in in
the
schools
Scan Lab
this environment.
Terco
developed
equipmentand
andsoftware
softwarefor
formeasuring,
measuring, control
control and
this environment.
Terco
hashas
developed
equipment
andacquisition
acquisitionofofimportant
important
parameters.
parameters.
SM 2607 Measuring, Data Processing & Control Unit
SM2607 consists of two main blocks: the measuring module and the data processing unit together with the PC-interface.
They are built into a sturdy steel enclosure on which the experiment connections are easily made on the front panel.
Connections to a PC or other instrument groups are made from the rear.
measuring
module Data
consists
of three complete
measuring
groups, each one with voltage and current inputs together
SMThe
2607
Measuring,
Processing
& Control
Unit
with electronics for analogue calculating of mean values and RMS values together with power expressed as W or VAr.
SM 2607
consists
of two main
blocks:
the measuring
module
and the
processing
unit
with the barrier
PC-interface.
The six
inputs (3xvoltage
and
3xcurrent)
are galvanically
isolated
fromdata
the signal
circuits
by together
a 1.5 kV isolating
TheyThe
are analogue
built into measuring
a sturdy steel
enclosure
on which
theor
experiment
connections are easily made on the front panel.
channels
processes
AC, DC
mixed quantities.
Connections to a PC or other instrument groups are made from the rear.
If not operating together with a PC the measuring module can be
The measuring
module
consists
three complete
measuring
groups, each one with voltage and current inputs together
used together
with an
externalofinstrument
box (SM2629,
optional)
with where
electronics
calculating
of mean
values
RMS
three for
LCDanalogue
instruments
plus selector
switches
areand
used
to values together with power expressed as W or VAr.
The six
inputs
(3readouts
x voltageinand
3 x current) are galvanically isolated from the signal circuits by a 1.5 kV isolating barrier.
perform
the
percents
(0-199,9%).
The analogue
measuring channels processes AC, DC or mixed quantities.
In this case connections are performed by a multiple lead cable
If not operating together with a PC the measuring module can be used together with an external instrument box (SM 2629,
together with a multiple contact placed in the rear plate of the
optional) where three LCD instruments plus selector switches are used to perform the readouts in percents (0-199.9 %).
SM2607. The cable is included in the code number SM2629.
In this case connections are performed by a multiple lead cable together with a multiple contact placed in the rear plate of
the SM 2607. The cable is included in the code number SM 2629.
Technical specifications for the measuring module
Technical
specifications
for the measuring modulenumber of channels
Analogue
inputs:
Voltage, ranges
Analogue inputs:
Voltage,
ranges
Current,
ranges
Current, ranges
Analogue outputs:
Voltage mean value
30 V, 100 V, 300 V
3
AC or DC or mixed number of channels
30
V, 3100
V, 300
1 A,
A, 10
A V
33
PC-monitor : Measurements initiated.
ACororDC
DCor
ormixed
mixed
AC
1 A, 3 A, 10 A
AC or DC or mixed
+/- 10 V, buffered
+/- 10 V, buffered
±+/10 10
V, V
buffered
buffered
±+/10 10
V, V,
buffered
±+/10 10
V V, buffered
±+/10 10
V, V
buffered
+/10
± 10 V, V,
buffered
10Vkohm
±<10
Analogue
Voltageoutputs:
RMS value
Voltage,
value
Voltage
meanimmediate
value
Current
Voltage
RMSmean
valuevalue
Current
RMS value
Voltage,
immediate
value
Current,
value
Current meanimmediate
value
Power
W/VAr
Current RMS value
Output
impedance
Current,
immediate
value
Power W/VAr
Accuracy
Output impedance
± 10 V,
1%
< 10 kohm
within the accuracy
Voltage input impedance
Current input impedance
20 kHz
> 1 Mohm
0.1-1 ohm
Frequency response
within the accuracy
20 kHz
Accuracy
1%
Voltage input impedance > 1Mohm
Frequency
Currentresponse
input impedance 0,1-1 ohm
22
3
3
3
33
33
33
33
33
3
3
Programming mode
PC-monitor: Measurements initiated.
Scan Lab System – Electrical Machines Laboratory
Technical specifications for the data acquisition module
Technical specifications for the data acquisition module
Analogue
internal
inputs:
Analogue
internal
inputs:
Corresponding
to
all
Corresponding to alloutput
outputchannels
channels
from
thethe
measuring
from
measuringmodule
moduleabove
above
number
of channels
number
of channels
21
21
1
1
1
1
1
1
1
1
Analogue external in- and outputs:
Analogue external in- and outputs:
Frequency*
0-10 V
Frequency*
0-10 V
Torque*
± 10 V
Torque*
± 10 V
Speed*
± 10 V
Speed*
± 10 V
Shaft
power*
± 10
V V
Shaft
power*
± 10
(* or
any
feedback
signal)
(* or any feedback signal)
Aux.
Inputs
Aux.
Inputs
± 10
V V
± 10
3
3
Analogue
outputs
(control)
Analogue
outputs
(control)
Output
impedance
Output
impedance
± 10
V V
± 10
< 10
kohm
< 10
kohm
1
1
Program mode including formulas
PC-monitor: An experiment being set up.
Power inputs are connected by safety terminals.
Power
inputs
connected
Outputs
areare
constituted
by 4byorsafety
2 mm terminals.
pin connectors for buffered sigOutputs
are
constituted
by
4
or
2
mm pin connectors
nals and by BNC connectors for immediate
values. for buffered signals and by BNC connectors for immediate values.
Communication
between
2607 and the
the PC
PCisisperformed
performedbybya a standard type parallel port.
Communication
betweenthe
theSM
SM2607
Nostandard
extra sub
unitsport
have
to 232).
be installed in the PC.
Serial
(RS
TheNodata
acquisition
module
in installed
the SM 2607
based on a MAXIM microprocessor. The unit is tailored to suit Terco
extra
sub units have
to be
in theisPC.
modules
likeacquisition
MV 1052 module
(TorqueinMeter
System)is but
canonalso
be usedmiwith other objects via BNC, 2 mm and 4 mm terminals.
The data
the SM2607
based
a Motorola
The unit
is tailored
to suit
Terco
All croprocessor.
inputs and outputs
have
standard
signal
levels.
modules like MV1051 (Torque Meter System) but can also be used with
othersupply
objects via BNC, 2 mm and220-240
4 mm terminals.
Power
V 1-phase AC, 50-60 Hz
All inputs and outputs have standard signal levels.
Dimensions
Weight
Power supply
490 x 200 x 350 mm
7.5230
kg V AC, 50-60 Hz
Dimensions
Weight
490 x 200 x 350 mm
7.5 kg
SM 2609 Data Collecting Software
To be2609
used Data
together
with SM2607
and a PC for collecting and valuating
SM
Collecting
Software
Measured and calculated values
of experimental values. Data processing
To
be be
used
together
with SMwith
2607feedback
and a PC
for collecting
and valuation of experimental values. Data processing
can
done
simultaneously
control
of, for example,
can
be done
simultaneously
with feedback
control of for example torque or speed or for any controlled situation.
torque
or speed
or for any controlled
situation.
The
canautomatically
automaticallybebecollected
collected through programmed control and data processing.
Thecharacteristics
characteristics of
of a machine
machine can
through
programmed
control
and
processing.
The
software
is designed
to let
thedata
user
define the
experiment
setup
by himself.
anthe
amount
The software
is designed
to letTogether
the user with
define
exper-of
standard
experiments
madewith
for an
theamount
Terco Electrical
iment setup
by himself.tailor
Together
of
standardLaboratory.
experiments, tailor made for the Terco Electrical
Machine
Machines
Lab.
Following
programmodules
modulesavailable:
are available:
There
are the
following
program
A. Table generator.
A.B.Table
Data generator.
acquisition defined by the Table generator.
B.C.Data
acquisition
by theofTable
generator.
On-line
readoutsdefined
(instruments)
values
defined
C. On-line
readouts
(instruments)
of
values
defined
by the Table generator.
the Table generator.
D.by
Print-out.
D.E. Print-out.
File processing: save/load table format, table, graph.
E.F. File
processing:
save/load
tablegraphs
format,fortable,
Export:
Export of
tables and/or
othergraph.
F. Export:
Export
of tables and/or graphs for other
program
processing.
program processing.
SM 2609 comprises 3.5˝ discs and manual.
SM
comprises
3.5˝necessary.
discs and manual.
No2609
computer
cards are
No computer cards are necessary.
Print out of results
23
Scan Lab System – Electrical Machines Laboratory
Equipment Lists
Torque Meter Set, Digital (MV 1052)
MV 1052
SM 2641
SM 2613
SM 2640
SM 2643
SM 2644
SM 2645
SM 2672
SM 2674
Torque, Speed and Power Meter (Digital)
DC Machine, sep. Shunt Winding (2)
Shaft Protective Cover (2 pcs)
Machine Bed
DC-Machine, Compound, Shunt, Series
Asynchronous Machine, Squirrel-Cage
Asynchronous Machine, Slip Ring/
Synchronous Machine
Capacitive Load Bank, 3-phase and 1-phase
Inductive Load Bank, 3-phase and 1-phase
SM 2676
SM 2631
SM 2635
SM 2670
SM 2690
SM 2691
SM 2692
SM 2679
MV 1904
Resistive Load Bank, 3-phase, 1-phase
and DC
Power Supply Module
Terminal Board for SM 2631
Synchronizing Module
Load Switch
Reversing Switch
Star / Delta Switch
Set of Experiment Leads, Safety type
Flex Stand
Brake Set (SM 2671)
SM 2671
SM 2641
SM 2612
SM 2640
SM 2643
SM 2644
SM 2645
SM 2672
SM 2674
24
Brake Control Unit
DC Machine, sep. Shunt Winding (2)
DC-Tachometergenerator with Cover
Machine Bed
DC-Machine, Compound, Shunt, Series
Asynchronous Machine, Squirrel-Cage
Asynchronous Machine, Slip Ring/
Synchronous Machine
Capacitive Load Bank, 3-phase and 1-phase
Inductive Load Bank, 3-phase and 1-phase
SM 2676
SM 2631
SM 2635
SM 2670
SM 2690
SM 2691
SM 2692
SM 2679
MV 1904
Resistive Load Bank, 3-phase, 1-phase
and DC
Power Supply Module
Terminal Board for SM 2631
Synchronizing Module
Load Switch
Reversing Switch
Star / Delta Switch
Set of Experiment Leads, Safety Type
Flex Stand
Scan Lab System – Electrical Machines Laboratory
Additional Test Machines
SM 2648
SM 2683
SM 2694
SM 2684
SM 2685
SM 2686
SM 2688
SM 2649
Universal Motor
Induction Motor Dahlander
Dahlander Switch
Induction Motor Cap. Start & Run
Induction Motor Capacitor Start
Induction Motor Split Phase
Asynchronous Machine, 2 sep windings
Flywheel
Transformers
SM 2680
SM 2681
Single-Phase Transformer 460 VA
Three-Phase Transformer 800 VA
Instruments, analogue
MV 1922
Ammeter, Moving Iron Instrument
0-1-2 A, AC/DC
MV 1923
Ammeter, Moving Iron Instrument
0-6-12 A, AC/DC
MV 1924
Ammeter 20-0-20 A
MV 1926
Voltmeter 0-50-250-500 V, AC/DC
MV 1928
Wattmeter 5 A 50-250-500 V, 1-phase (2 pcs)
MV 1929
Power Factor Meter 3-phase 230 V
(alternatively MV 1976, 3-phase, 400 V)
MV 1930
Frequency Meter, 46-54 Hz
(alternatively MV 1938, 60 Hz)
Phase Cop 2 Phase Sequence Indicator
Instruments, digital
SM 2627
SM 2628
Universal Measuring Unit
Measuring Unit 3-phase/1-phase/DC (U, I, P)
Measuring and Data Acquisition with PC
SM 2607
SM 2609
SM 2629
Measuring, Data Processing &
Control Unit
Data Collecting Software
The reading of ”instruments” will be
at the PC-monitor. If a PC is not used,
the values can be read on SM 2629.
Instrument Unit U, I, P
Power Electronics
SM 2678
SM 2658
SM 2651
SM 2652
SM 2661
SM 2668
SM 2675
SM 2593
Basic AC / DC Control Module
MOSFET - PWM Module
Rectifier Module 1 Q
4-Q Converter
Frequency Control Module
Semi Four Quadrant Unit
Diode Module
Softstarter
25
Scan Lab System – Electrical Machines Laboratory
Sectioned Motors
Sectioned Motors and Transformer
MV
1006-C
DC
The
machines
areMachine
sectioned about 90˚ allowing all the main components to be
Thisdemonstrated
machine is cut-away
toinshow
commutator,
clearly and
an educational
way.brushes, rotor, stator,
windings,
Please ball-bearings.
note : It is not possible to do any practical experiments with the maThechines
machine
sectioned about 90˚ allowing all the main components to
andistransformer.
be demonstrated clearly and in an educational way.
Please note : It is not possible to do any practical experiments with this
machine.
MV 1006-C DC Machine
Thispower
machine is cut-away to show
brushes, rotor, stator, windRated
1.0commutator,
kW
ings, ball-bearings.
Dimensions
465 x 300 x 310 mm
Shaft
height
162 mm
Rated
power
1.0 kW
Dimensions
465
x
300
x
310
Weight
40 mm
kg
Shaft height
162 mm
MV1006-C
Weight 40 kg
MV 1008-C Synchronous Machine
This machine is cut-away to show slip-rings, brushes, rotor, stator,
windings, poles, ball-bearings etc.
MV 1008-C Synchronous Machine
The machine is sectioned about 90˚ allowing all the main components to
This machine clearly
is cut-away
to an
show
slip-rings, way.
brushes, rotor, stator, windings,
be demonstrated
and in
educational
poles, ball-bearings etc.
Please note: It is not possible to do any practical experiments with this
Rated power
1.0 kW
machine.
Dimensions
Rated
power
Shaft
height
Dimensions
Weight
Shaft height
Weight
465 x 300 x 310 mm
1.0 kW
162 mm
465 x 300 x 310 mm
35 kg
162 mm
35 kg
MV 1007-C Induction Motor Slip-Ring
MV1008-C
This
motor isInduction
cut-away toMotor
show slip-rings,
brushes, rotor, stator, windings,
MV
1007-C
Slip-Ring
ball-bearings,
etc. slip-rings, brushes, rotor, stator,
Thispoles,
motorfan,
is cut-away
to show
Rated power
1.1 The
kW motor is sectioned about
windings,
poles, fan, ball-bearings, etc.
440 x 300 x 350
mm and in an
90˚ Dimensions
allowing all the main parts to be demonstrated
clearly
Shaft height
162 mm
educational
way.
Weight
37 kg
Please
note: It is not possible to do any
practical experiments with this
machine.
Rated power
1.1 kW
MV 1009-C Induction 440
Motor
Dimensions
x 300 Squirrel
x 350 mm Cage
This
motor is cut-away to show 162
rotor,mm
stator, windings, poles, fan,
Shaft
height
ball-bearings, etc.
Weight
37 kg
Rated power
Dimensions
Shaft height
1.1 kW
355 x 300 x 310 mm
162 mm
Weight
15 kg
MV1009-C
MV 1009-C Induction Motor Squirrel Cage
This motor is cut-away to show rotor, stator, windings, poles, fan,
MV 1915-C
Transformer
ball-bearings,
etc. TheThree-phase
motor is sectioned
about 90˚ allowing all the main
partsThis
to be
demonstrated
clearly
and
in
an
way.terminals, insulation,
transformer is cut-away to show theeducational
windings, coils,
ironnote
core: etc.
Please
It is not possible to do any practical experiments with this
machine.
Rated power
2 kVA
Dimensions
300 x 190 x 345 mm
Rated
power
1.1 kW
Dimensions
355 x27300
Weight
kg x 310 mm
ShaftOther
height
162
mm
electrical machines and transformers than those above can be cut-
Weight
away on request.
15 kg
MV1915-C
Other electrical machines than those above can be cut-away on request
26
Scan Lab System – Electrical Machines Laboratory
Experiment Manuals and Teachware
The equipment listed in this brochure is designed especially for educational purposes. The motors, generators, load units
and power supply units are interchangeable so that in addition to the listed experiments it is also possible to demonstrate
installation wiring requirements, meter connections, motor symptoms during overload and many other important
conditions necessary in different syllabi.
A brief synopsis of experimental coverage is given below.
Examples of Experiment Manuals.
Introduction to Scan Lab System
Measurements and Electrotechnical Definitions
Power Supply
Load Units
Electrical Machines and Brake Control
Experiment Manual, Scan Lab System, Part 2
Universal Motor
Dahlander Motor
Two Speed Squirrel Cage Induction Motor
Split-phase Induction Motor
Single-phase Induction Motor
Basic Theory of Electrical Machines
DC-machines
AC-machines
Experiment Manual, Scan Lab System, Part 1
Instructors Guide to Scan Lab System
Practical Function Control
Electrical Machines - Part 1
Electrical Machines - Part 2
DC-generator
DC-motor
Synchronous Motor and Generator
Squirrel Cage Induction Motor
Induction Machine as Generator
Slip-ring Induction Motor
The foundation block on the modular system can be different Torque Measuring Systems:
1. Torque and Power Meter MV 1052 together with prime mover or brake unit SM 2641.
2. Brake Control Unit SM 2671 together with prime mover or brake unit SM 2641.
3. DC-Machine SM 2641 (alt. SM 2643) for more simplified experiments on motor / generators.
The above systems can be coupled to the Terco test machines on the Terco Machine Bed SM 2640.
27
Scan Lab System – Electrical Machines Laboratory
Compact Drive
A compact teaching system for electrical machines and speed regulation
Compact Drive
With this equipment it is possible
to study typical industrial cases
concerning motor drives of industrial
design:
SM 2552
SM 2561
- AC machine with and without
frequency converter
- DC Machine with 4-Q Converter
In case you would like to extend
the use of Compact Drive to more
advanced experiments, Compact
Drive can be upgraded with products
from our Scan-Lab Series.
The frame SM 7801 is built up on a
mobile cart with lock-up wheels.
On the bottom we have placed the
machine bed with the AC- and DCmachines. On the upper panel we
have placed all the electronic
equipment such as converters.
Measuring equipment can be placed
on a removable shelf.
SM 2501
SM 7801
SM 2641
The equipment is to be connected to
single-phase 230 V AC, 50-60 Hz.
SM
2612
An electrical distribution box with
sockets for feeding of converters and
measuring system is included.
SM 2540
28
SM 2644
Scan Lab System – Electrical Machines Laboratory
The Compact Drive includes the following equipment:
SM 7801 Mobile frame
SM 2552 4-Q DC Control Module
In gray enamelled steel with lock up wheels.
Dimension
Weight
This Unit is a rectifier thats operates in open loop, armature
voltage feedback, tacho feedback or torque feedback
mode. The rectifier includes overload and low speed relays
as well as a disconnectible smoothing inductance. The unit
has both sub-cycle and delayed overload protection.
980 x 610 x 1620 mm
35 kg
SM 2540 Machine Bed
Dimension
Weight
870 x 300 x 120 mm
5 kg
Operation modes:
SM 2501 Measuring Unit
Specially designed for Compact Drive. This unit is measuring
torque, speed and shaftpower.
Dimension
Weight
350 x 260 x 145 mm
4 kg
- Armature voltage feedback with forward and reverse
selection.
- Ramped input or tacho feedback with bi-directional
control (joystick) from the speed control potentiometer,
with direct input of reference signal (no ramp).
Technical data
SM 2644 Induction Motor Squirrel Cage
This is a standard 3 phase squirrel cage asynchronous
motor with 4 poles. With this motor not only the normal
testning can be done but it is also suitable for use together
with a frequency converter.
Principle of operation
Output voltage
Output current
Excitation
Feedback
4-Q double full bridges
0-170 V
6A
190 V / 2 A
Tacho generator or armature
voltage
220-240 V 1-phase AC, 50-60 Hz
Input voltage (supply)
Parameters
Technical Data. See page 7.
SM 2641 DC Machine with separate
excitation winding
This DC machine has an open shunt winding, enabling
SM 2641 to be connected either for shunt excitation or for
separate excitation, both as motor and generator. SM 2641
also has interpoles which improves the characteristics of
the machine. It is ideal to use together with DC-converters.
Technical Data. See page 6.
- Speed
- Current limit
- Stability (Gain)
- RI-comp.
- Ramp up/down (Time)
- Speed max/min
Dimensions:
Weight:
250 x 160 x 420 mm
6 kg
SM 2561 AC Control Module
SM 2593 Softstarter
By use of Softstarter SM 2593 current peaks can be avoided.
Technical Data. See page 21.
The AC Control is a PWM flux vector type frequency control,
controlled by a microprocessor. All power components are
based on MOSFET technique. Operation characteristics as
well as braking method are internally programmable.
Technical Data
SM 2579 Flex set
Laboratory flexes with safety plugs.
Length
Black
Red
Yellow
550 cm
100 cm
2
4
2
4
3
3
SM 2612 Tachometergenerator
14 V / 1000 rpm
Dimension
Weight
95 x 195 x 150 mm
1 kg
PWM-flux vector
3 x 0-300 V, 0-100 Hz
370 W
Blocking of inverter bridge
Included
220-240 V 1-phase AC, 50-60 Hz
Parameters
- Speed
- Current limit
- Start voltage boost
- Ramp up/down
- Speed max/min
Technical Data
DC tacho
Principle of operation
Output voltage
Output power
DC-link over voltage
Braking chopper
Input voltage (supply)
Dimensions:
Weight:
250 x 140 x 420 mm
5 kg
Compact Drive Manual
Presentation of System and Equipment
Exercise: AC-Machine, SM 2644
Exercise: The Frequency Converter and the AC-machine
Exercise: DC-machine, SM 2641
Exercise: The Rectifier and the DC-machine
Exercise: Mechanically Synchronised Units General Theory
Theory - The Asynchronous Machine
Theory - The Frequency Converter
Theory - The DC-Machine
Theory - The Rectifier
29
Scan Lab System – Electrical Machines Laboratory
TERCO Electrical Machine Systems
Classic Electrical Machine System
Classic Electrical Machine System
The Classic System is completely modular. The test motors and generators have a power of approximately 1 kW.
This size of machine is such that:
1.
2.
3.
4.
Standard instruments can be used.
Safety precautions can be observed easily.
It is possible to interchange the machines without
using a crane or hoist.
Prices are competitive.
Due to the top quality and robust construction of Terco
products, they are able to withstand the rough handling by
new, inexperienced students.
With Terco Classic Machines it is possible to produce
characteristics which are typical for machines of ratings
6-8 kW, as our machines have more iron and copper than
normal.
Compare the weight of our test machines with others.
30
Scan Lab System – Electrical Machines Laboratory
Scan Lab
System
Scan Lab is completely
modular, and the various
modules can be bought
separately and integrated as
the demand arises. This enhances the use of Scan Lab
and makes it flexible and
economical.
All the electrical machines as
well as the power electronics
have been chosen to take
uniquely industrial standard
into consideration.
Terco Scan Lab is very
accurate. Very small electrical
machines give unrealistic
measuring values. We have
carefully
considered this by optimising
the winding data of the
machines and by choosing an
effect of approx 400 W.
Compact Drive
A compact teaching system for electrical machines
and speed regulation.
With this equipment it is possible to study typical
industrial cases concerning motor drives:
- AC machine with and without frequency converter
- DC machine with 4 Q converter
In case you would like to extend the use of
Compact Drive to more advanced experiments,
Compact Drive can be upgraded with products from
our Scan Lab Series.
Please request separate leaflet for any
of the Machine Systems.
31
Scan Lab System – Electrical Machines Laboratory
Laboratory Layout
The layout is most important when designing a functional laboratory. It is of great importance that equipment and furniture
are taken into account early in the planning stage. A standard solution for planning a laboratory for 16 students can be
seen below. If the space of the laboratory has been determined already, the standard solution may not be applicable.
Our engineers will be pleased to advise on any individual requirements.
See also our brochure ”Power Distribution System and Furniture for Laboratories”.
TF 1253
➐
➐
TF 1251
➎
➏
TF 1252
➊
➌
➊
➌
➐
➊
➌
➍
➋
➌
➍
32
➊
Three Torque Meter Benches complete with accessories such as motors, loads, power supplies, switches, flex stands
with flexes.
➋
One Eddy Current Brake Bench or other type of brake complete with all accessories.
➌
Four benches for experiments where the motor bench is not necessary and for theoretical follow-up of the
experiments.
➍
Cabinets for instruments, tools and accessories.
➎
Teacher desk.
➏
Machine jack.
➐
Terco Safety Power Distribution System with key-operated central, transformer, student-panels and emergency stops.
Scan Lab System – Electrical Machines Laboratory
Power Distribution System increases Safety in School Laboratories
Terco´s Power Distribution System consists of a distribution board which is installed near the classroom. Each circuit is
protected by a MCB, making energising and isolating a simple process for the teacher. There is also a protection device
which breaks the voltage in the event of accidental disturbance in any phase. An emergency stop is placed in a prominent position in the classroom and will break all supplies when operated.
Voltage system in the lab: 400/230 V 3-ph and 230 V 1-ph
Incoming voltage 400/230 V 3-ph
TF 1251 Distribution Panel
The distribution panel is manufactured in varnished sheet metal and
used for separate distribution of power to each lab. group (student
panel). It contains one main switch, eleven 3-pole 16 A MCB (miniature circuit breakers), one ELCB (earth leakage circuit breaker),
one indicator lamp and lockable ON-key. The distribution panel
breaks the supply voltage when a current > 30 mA flows in the protection lead.
TF 1251 is wired for connection of outgoing groups to each MCB.
The incomming wires to be connected to the main switch.
Dimensions: 480 x 330 x 60 mm
Weight: 10 kg
TF 1253 Transformer
10 kVA intermittent
The transformer is air cooled and enclosed in sheet metal
for placement on the floor.
Main voltage: 3-ph 380-415 V +/-5% 50-60 Hz
Connection : D/Y-0
Secondary: 3-ph 380-415 / 220-240 V 50-60 Hz
Dimensions: 420 x 250 x 420 mm
Weight: 85 kg
TF 1229 Contactor with Thermal Protection
Enclosed in a plastic cover
Current: 16-24 A
For transformer TF 1226 and TF 1253
Dimensions: 142 x 115 x 112 mm
Weight: 1 kg
TF 1211 Emergency Stop
Dimensions excluding the sign: 70 x 70 x 70 mm
Weight: 0.2 kg
Emergency sign in English enclosed
Other Power Distrubution Voltages are available in our programme.
Please see our brochure ”Power Distribution System and Furniture
for Laboratories”.
33
Scan Lab System – Electrical Machines Laboratory
Example of an Electrical Machines Laboratory
TERCO has delivered equipment to more than 65 different countries
throughout the world.
Guarantee & Terms
All overseas deliveries are dispatched in special, made to order wooden crates, extremely sturdy and damage
resistant.
The guarantee is valid for 12 months from delivery and covers repair or exchange of parts, defective due to faulty
design or workmanship at our factory. Detailed conditions of guarantee are specified in our Terms of Guarantee.
Spare parts for 2-5 years of normal operation can be offered on request.
Regular after-sales service is performed by the worldwide network of Terco representatives, along with the advice
and support of our engineers.
Commissioning and training is normally offered separately. Special training can be arranged on request either in
Sweden or on site.
Terco reserves the right to make changes in the design and modifications or improvements of the products at any time
without incurring any obligations.
34
Cross Reference List
Code
Type
MV 1006-C
Page
Page
26
Code
SM
2593
SM 2607
2579
SM
Page
21
29
22
Code
SM
2670
SM 2671
2661
SM
Page
11
205
MV 1007-C
26
MV 1008-C
26
SM 2609
2593
SM
SM 2612
2607
SM
21
23
22
12
SM 2672
2668
SM
SM 2674
2670
SM
20
10
11
10
MV 1009-C
26
SM 2613
2609
SM
SM 2625
2612
SM
23
12
12
12
SM 2675
2671
SM
SM 2676
2672
SM
5
21
10
10
SM 2627
2613
SM
SM 2628
2625
SM
12
16
12
16
SM 2678
2674
SM
SM 2679
2675
SM
10
18
21
13
SM 2629
2627
SM
SM 2631
2628
SM
16
16
169
SM 2680
2676
SM
SM 2681
2678
SM
10
21
18
21
SM 2635
2629
SM
SM 2636
2631
SM
169
9
12
SM 2683
2679
SM
SM 2684
2680
SM
138
218
SM 2637
2635
SM
SM 2638
2636
SM
9
10
12
12
SM 2685
2681
SM
SM 2686
2683
SM
218
88
SM 2639
2637
SM
SM 2640
2638
SM
10
12
127
SM 2688
2684
SM
SM 2690
2685
SM
88
8
13
SM 2641
2639
SM
SM 2643
2640
SM
126
76
SM 2691
2686
SM
SM 2692
2688
SM
8
13
8
13
SM 2644
2641
SM
SM 2645
2643
SM
67
67
SM 2693
2690
SM
SM 2694
2691
SM
13
13
13
13
7
6
7
7
6
7
7
6
7
19
6
19
19
18
19
20
18
Page
SM 2692
SM 7801
SM 2693
TF 1211
SM 2694
TF 1229
SM 7801
TF 1251
TF 1211
TF 1252
TF 1229
TF 1253
TF 1251
13
29
13
33
13
33
29
33
33
33
33
33
33
TF 1252
33
TF 1253
33
20
MV 1052
4
MV 1417
11
MV 1904
13
MV 1909
11
1915-C
MV 1922
16
14
MV 1923
1922
14
MV 1924
1923
14
1924
MV 1926
14
1926
MV 1927
14
15
MV 1928
1927
15
1928
MV 1929
15
1929
MV 1930
15
MV 1931
1930
MV
15
15
MV 1938
1931
MV
15
15
MV 1971
1938
MV
15
17
MV 1974
1971
MV
17
14
MV 1976
1974
MV
14
15
MV 4212
1976
MV
15
17
MV 4212
Phase
Cop 2
17
11
Phase
Cop 2
SM
2501
11
29
SM 2540
2501
SM
29
29
SM 2551
2540
SM
29
29
SM 2561
2551
SM
29
29
SM 2579
2561
SM
29
29
SM 2644
SM 2646
SM 2645
SM 2647
SM 2646
SM 2648
SM 2647
SM 2649
SM 2648
SM 2651
SM 2649
SM 2652
SM 2651
SM 2658
SM 2652
SM 2661
SM 2658
Type
Page
SM 2668
Type
Terco Headoffice
TERCO AB • P.O. Box 5014 • SE-141 05 HUDDINGE – STOCKHOLM • SWEDEN
Telephone: +46 8 506 855 00 • Telefax +46 8 506 855 01 • http://www.terco.se • e-mail export@terco.se
2005.09/3.000/ Östertälje Tryckeri AB, Södertälje
Terco headoffice and factory outside Stockholm, Sweden.