3 PHASE AC SLIP RING INDUCTION MOTOR TRAINER
(MODEL: XPO- EMT/ 3 SLIM)
SALIENT FEATURES
Facilitates easy and safe wiring by students due to use of 4mm sturdy shrouded banana patch cords and shrouded socket arrangements.
All machines are mounted on finely painted sturdy base frame.
With due emphasis on student safety machines operate upto 300W power levels and upto 1500 RPM, without compromising didactic
use able to draw all graphs.
Break pulley arrangement for variable loading of motor.
MOTOR SPECIFICATIONS :
3 AC Integrated motor with following specs: Voltage:
415VAC, 50Hz, Capacity: 300W/4 pole/ 1500RPM,
Rotor construction: Star connected, four terminals
including star point brought out on 4 slip rings mounted on
shaft, Stator construction: Six terminal are brought out to
s t a r t t h e m a c h i n e u s i n g s t a r - d e l t a s t a r t e r,
Frame/mounting: 100 frame, chassis mounted, 19mm
shaft dia.
Loading arrangement: Friction break pulley (60.5mm
dia) for loading arrangement with 20Kg spring balance for
torque measurement.
Speed Measurement: Using hand held tachometer.
LIST OF EXPERIMENTS :
1)
Speed torque characteristics of 3 wound rotor
induction motor with variable rotor resistance. 2)
Efficiency and input power factor measurement of 3 wound
rotor induction motor. 3) Speed torque characteristics of 3
short-circuited rotor induction motor. 4) Efficiency and
input power factor measurement of 3 short-circuited rotor
induction motor.
5) Speed torque characteristics of Three Phase
synchronous motor. 6) Efficiency and input power
factor measurement of Three-phase Synchronous Motor
7) Use of synchronous motor as power factor
improvement device. Study of 'V' curves 8) Study of
Direct On Line (DOL) starter for Three-Phase induction
motor 9)Study of star-delta starter for 3 induction motor.
10)
Study of rotor resistance starter for 3
wound rotor induction motor. 11) Study of direction of
reversal for 3 induction motor.
CONTROLPANELSPECIFICATIONS
A] Aluminum profile (4X2) sturdy flat panel (table top)
system, carrying various high voltage components
housed in plastic enclosures (panel) to minimise
shock possibility.
• Input 3 phase DOL Starter panel (EMT1)
[10 Shrouded Banana]
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1] 4 pole MCB of 415 V/4A. 2] DOL 9A
Contactor with 230V / 50 Hz / 11VA Coil .3]
Bimetallic thermal O/L relay with range 1.4A 2.3A. 4] R-Y-B Input Indicators.
Integrated AC 3 phase multifunction
measurement panel (EMT20)
[14 Shrouded Banana]
1] Consist of 1 nos of (96X96mm) Digital meter
for 3 Measures V, I, P (0.2 lag unity 0.2 lead), Hz.
2] Current specs for 3 phase meter = 5A
FWD-OFF-REV Switch panel (EMT 4) [12
Shrouded Banana]
1] FWD/REV, 3 pole 3 way switch with centre
OFF, 6A/440V. 2]Star/Delta awitch 3 pole,3way
with centre OFF,6A/440V
3 Phase wound Rotor & Sync. Motor panel
(EMT 5A/B)
1] Rotor resistors of 30E/5A with 3 taps of 0E,
15E, 21E, 30E each - 3 nos 2] Rotor resistor
selector switch, 3 pole.6 Way .6A/440 V.3] DC
Rotor excitation with circuit breaker (3Amp)
DC voltmeter & DC ammeter panel (EMT 6B)
1]DC voltmeter (0-300V) 2] DCAmmeter (0-5A)
with polarity protection diode.
SCR Actuator (variable DC) cum sensor
signal conditioning panel (EMT9)
1] Full bridge SCR based 0V-195V / 3 Amp
cosine firing with linear charateristics.
2]Supports signal conditioning circuit for
speed, torque in kg wt to output 0-2.5Vdc
(FS).
Instrumentation Power supply cum
Multichannel DPM panel (EMT 8)
(a) +/-12 V, 500 mA (b) +5V, 300mA (c)
Unregulated 17V dc/750 mA (d) line
synchronizing signal.
(e) 13V / 3 Amp. (f) Multi channel DPM for
digital display of torque, speed etc
Mechanical Dimension(mm):
960(L)x300 (W) X 545 (H)
Net Weight : 56 kg