Quality – made in Germany
The latest testing technology for
electric machines
with a test capability to 6 MW
a world full of motion eine welt voller bewegung
MOTORS
GENERATORS
DRIVES
Certified quality standard for VEM
Innovative product developments coupled with a high manufacturing penetration ensure we can flexibly
satisfy customer-specific requirements. Quality technology and qualified, experienced employees guarantee
that each and every test procedure complies with the relevant standards. Our company is certified to DIN
EN ISO 9001 and is very well versed in the test requirements of diverse approval organisations both at home
and abroad (e.g.Germanischer Lloyd, Det Norske Veritas, Lloyd’s Register of Shipping, Bureau Veritas,
IBexU, TÜV Nord, Deutsche Bahn).
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Accordingly, VEM Sachsenwerk’s large machine test bay meets all the criteria required to demonstrate
quality and technical parameters. With an electrical test bay capability to 6 MW, it ranks among the most
modern plants of its type.
And will allow us to better respond to your user requirements in the future. For the most part, medium-sized
electric machines are tested with full load.
Upon request, customers can attend the test bay inspection and conduct the machine acceptance pro-cedure alongside our specialist personnel. During the tests, you get the chance to judge the function and
performance of our products for yourself.
In addition to the special tests on electric machines, we perform customised tests and trials and inspections
on other machine brands. We do of course also offer special test procedures, which we like to agree with our
customers individually.
A world full of motion
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Technical specifications
General specifications
 6 MW mains testing capability (50 Hz / 6.3 kV)
 5 MW test capability, variable frequency
 Voltage ranges from 690 V to 15 kV
 Frequency range to 80 Hz
 Connection to 20 kV mains in the test bay itself
 2 Frequency converters, each 10 MVA
Electrical specifications / supply
 Voltage ranges as a mains supply (50 Hz)
Voltage
20 kV
6.3 kV
3.62 kV
3.15 kV
1.81 kV

Electrical power
7000 kVA
7000 kVA
7000 kVA
7000 kVA
7000 kVA
Voltage ranges as a supply from converters 50 Hz - 60 Hz, (max. frequency 80 Hz)
Voltage
6.3 kV
3.62 kV
3.15 kV
1.81 kV

Current
200 A
640 A
1115 A
1280 A
2230 A
Current
570 A
990 A
1145 A
1985 A
Electrical power
6250 kVA
6250 kVA
6250 kVA
6250 kVA
Transformers for adjusting the test voltage
6 kV / 10 kV
6 kV / 15 kV
6 kV / 690 V
with max. 360 A (at 10 kV)
with max. 240 A (at 15 kV)
with max. 5000 A (at 690 V)
Single-line large machine test bay 2
Technical specifications
Working load limits
 The working load is applied by two converter-fed asynchronous machine in tandem design
with a total capacity of 6.3 MW
 two speed ranges can be realised via a gearbox:
0 - 900 rpm and 0 -2000 rpm
 The maximum permanent test capability of 6 MW can be achieved with a further speed range
from 430 rpm to 2000 rpm
 Testing of 4-pole to 14-pole machines with 6 MW (5 MW at 60 Hz)
 The maximum torque is 120 kNm
 The maximum shaft centre height for load tests is approx. 1500 mm
 With greater shaft centre heights, the tests are conducted in large machine test bay 1
Test capability - working load limits as a factor of speed
Comment:
 All specifications apply for S1 operation
 At frequencies < 50 Hz, the voltage and hence the maximum possible capacity drops
 Load tests are possible only in horizontal setup
Other equipment
Measuring stations with separate visitor area
 Auxiliary voltage supplies:
AC 230 V / 3 AC 400 V / 3 AC 525 V / 3 AC 690 V / 3 AC 690 V (60 Hz)
 Cooling water plant with a recooling capacity of up to 1000 kW
 Oil units
 Modern safety and control technology
 Modern measuring
 High-voltage test equipment to 36 kV (60 kVA)
 DC and AC exciter for synchronous machines
 Test area 576 m2
 Connected assembly area 1440 m2
 Truck access directly into the assembly hall
 Crane capacity 2 x 50 tons

Our tests for your peace of mind
The overall technical equipment offers an extensive service for every size of electric machine.
 Several test facilities – equipped with the suitable rotary converters and load machines
 876 m2 Active test area around the large machine test bay
 100 m2 Test pit for vertical machines
 Crane capacity up to 200 t, crane height over the test bay area 9 m, over the test pit 13 m
 150 m2 Active test area around the large machine test bay
 10 m2 Active test area for traction machines
 Balancing unit (Schenck) up to a rotor mass of 63 t in the speed range of 150 to
4000 rpm, up to a rotor mass of 150 t, speed range upon request
 Balancing unit (Schenck) up to a rotor mass of 7 t in the speed range of 180 to 4400 rpm
Test options
 Full load tests to 6 MW
 Synthetic tests to 35 MW
 Frequencies 50 Hz / 60 Hz to 80 Hz
 Frequencies to 200 Hz for traction machines <
= 700 kW
 Voltages to 15 kV
 System tests for converters and engines
Testing of additional equipment such as lubricating systems, exciter systems and voltage regulators,
devices for explosion protection.
A world full of motion
Under the VEM trade mark, we supply our customers with a German proprietary brand. Continuity and
dependability now and in the future - that’s what production and service of the VEM Group stand for. The
engineering and quality of VEM motors and VEM generators are setting a trend on the market.
The VEM Group is your ideal partner for drive technology, from highly-developed complete solutions to special
drives to individual components in the capacity range of 0.06 kW to 35 MW.
“A world full of motion “ – with our products and ideas.
A world full of motion
arture graphic design
Homepage: www.vem-group.com
A world full of motion
VEM/09-007 E/0211GD Printed in the Federal Republic of Germany. Changes reserved.
VEM Sachsenwerk GmbH
Pirnaer Landstrasse 176
01257 Dresden