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Free-standing e-motor EMC test benches enable testing of the electric drives and high-voltage inverters in the anechoic chamber, and have excellent EMC performance. The test bench is suitable for testing electric drive systems in any field, including automotive, aerospace, robotics, and other industries. Free-standing EMC test benches can be move into or out of the anechoic chamber.
The electric dynamometer and inverter are integrated into a free-standing frame equipped with heavy-duty industrial casters at the bottom. EMC performance fully meets the standards of ISO 11452-2 and CISPR 25.
（1）Independent Free-standing Integrated Structure
Adopting an independent vertical free-standing design, the test bench is structurally separated from the test chamber and external mechanical equipment. It effectively avoids structural coupling interference, simplifies on-site installation and layout, and improves the overall stability and test repeatability of the system compared with traditional combined test benches.
（2）Low Background Noise & High-precision EMC Testing
Equipped with professional EMC shielding structure and filter isolation system, the equipment greatly reduces external electromagnetic background interference. It supports accurate testing of conducted emission, radiated emission, electrostatic immunity and surge immunity of motors under dynamic load conditions, fully meeting ISO and automotive industry EMC standard requirements.
（3）Synchronous Electric & Magnetic Joint Simulation
Different from traditional separate mechanical and EMC tests, this bench realizes real-time synchronous testing of motor dynamic performance (speed, torque, efficiency) and electromagnetic compatibility performance. It truly restores the actual high-frequency operating state of vehicle electric drive systems, ensuring test data is highly consistent with real vehicle scenarios.
（4）Strong Compatibility & Wide Application Range
It is applicable to mainstream new energy drive motors, including permanent magnet synchronous motors and high-voltage SiC electric drive motors. It covers full-process R&D testing, batch production inspection and type certification test scenarios, adapting to multi-model and multi-specification product verification demands.
（5）Modular Design & Easy Expansion
The overall platform adopts modular architecture, which can be flexibly matched with dynamometer systems, high and low temperature environment chambers, and high-altitude simulation modules. It supports subsequent function expansion to realize composite environment + EMC + mechanical performance joint testing, improving test comprehensiveness.
Free-standing EMC test benches are very convenient for customers to use and require low investment costs.
Type | FED-8 | FED-37 | FED-50 | FED-200 | FED-300 |
Trated(N.m) | 8 | 37 | 50 | 200 | 300 |
Prated(kW) | 5.5 | 14 | 30 | 100 | 150 |
nrated(rpm) | 5253 | 3600 | 5730 | 4775 | 4775 |
nmax(rpm) | 17940 | 16000 | 12000 | 8000 | 7000 |
Pmax(kW)@ nmax | 5.5 | 14 | 25 | 100 | 150 |
(L*W*H)m | 1.2*0.8*1.2 | 1.2*0.8*1.2 | 1.6*1.2*1.5 | 2*1.2*1.5 | 2*1.3*1.5 |
Test benches test electric motor of the electric vehicles (EVs), for example electronic motors, electric suspension drive motors, aero-generator etc.
Main test contents:
（1）Conducted Emission test
（2）Radiated Emission test
（3）Standard: GB/T 18655 & CISPR25
Basic configurations:
Dynamometer & Mechanical System: The free-standing frame is mounted on four industrial casters for easy movement. The shaft of the motor under test and the output shaft of the dynamometer can be connected using either insulated couplings or metal couplings, enabling simulation of various connection conditions of the motor under test.
The EUT is mounted on the end face of the mounting bracket via a transition mounting flange, centered by a positioning spigot, and locked and fixed with bolts.
Battery Simulator or Bidirectional DC Power Supply: Simulates an on-board battery pack to supply power to the inverter and the motor. The DC power connects to HV filter outside the anechoic chamber, and then connect to HV AN by HV lines.
MCU Power Supply: Provides a low-voltage power supply for the motor controller. Customer can also select the battery which put on the test table.
Test Object Cooling System: Supplies cooling medium for the tested E-axle and E-drive. An oil or water-cooling system is available for certain oil-cooled or water-cooled test pieces. Parameters including temperature, pressure and flow rate of the cooling system are fully adjustable. The water-cooling system can also use ethylene glycol as the cooling medium. The cooling system is connected to the fluid waveguides mounted on the wall of the anechoic chamber.
Automated Measurement & Control System: Conducts overall control and condition monitoring of the entire motor test bench.
80kW 8000rpm 200N.m EMC Test bench for electric motor
Q 1: What test objects and application industries is the free-standing e-motor EMC test bench applicable to?
A1: This free-standing EMC test bench independently developed by Anhui Jingke Testing Technology Co., Ltd. is mainly used for EMC performance testing of electric drive systems and high-voltage inverters. It covers a wide range of industries including new energy automobiles, aerospace, intelligent robotics and other high-end electric drive fields. The integrated free-standing structure supports overall moving into and out of the anechoic chamber, realizing flexible and efficient EMC testing for various electric motor and electric drive products.
Q 2: What core standards does the equipment comply with, and what are its structural advantages compared with traditional test benches?
A2: The test bench fully meets the international EMC certification standards of ISO 11452-2 and CISPR 25. Different from traditional fixed test benches, it integrates the electric dynamometer and inverter into an independent free-standing frame, equipped with heavy-duty industrial casters at the bottom. The overall movable design avoids structural coupling interference with external equipment, effectively reduces test background noise, and significantly improves the accuracy and repeatability of EMC test data.
Q 3: What EMC test items and test modes can this equipment support?
A3: This bench features excellent self-EMC performance and low interference characteristics. It supports synchronous testing of mechanical performance and electromagnetic compatibility of electric drives under dynamic load conditions, including conducted emission, radiated emission, electrostatic immunity and surge immunity tests. It can complete real and comprehensive EMC verification under actual operating conditions of the motor, solving the problem of inaccurate data caused by static separate testing of traditional equipment.
