Electric motor test bench can test the motors’ efficiency through testing with a precision power sensor and a power analyser.
For several reasons, AC & DC motor test bench requires the use of a high-precision power sensor and power analyser.
Accuracy: High precision power sensors and power analysers provide more exact measurements of the electrical power and energy used by the motor. This is essential for calculating the motor’s efficiency, as small measurement errors can contribute to significant inaccuracies in the final efficiency calculation.
Sensitivity: High precision power sensors and power analysers are more sensitive to small changes in power and energy, which can be essential when testing electric motors that are running at low loads or at high levels of efficiency. They can report the motor’s performance in greater depth, allowing for the pinpointing of problem areas.
Frequency response: High precision power sensors and power analysers have a higher frequency response, which means they can record and analyse high-frequency components of the motor’s output signal. This can be essential when testing motors that have high-speed components, such as those used in robotics or automation.
Standards compliance: In many industries, there are standards and regulations that require specific levels of precision and accuracy when evaluating electric motor efficiency. Using a high precision power sensor and power analyser can help ensure that your testing meets these standards and avoids compliance problems.
Consistency: Using a high precision power sensor and power analyser for electric motor test bench can provide consistent and reliable measurements over time, which is essential for tracking the performance of electric motors over the long term. This can help you spot trends and patterns in the motor’s performance, and make proactive maintenance choices that can improve efficiency and reduce downtime.
Overall, electric motor testing system requires the use of a high accuracy power sensor and power analyser to guarantee precise and reliable measurements, adherence to industry standards, and stable performance over time.
Case Studies of rAPS Power Sensor & RAPA Power Analyzer applied for electric motor test benches
National small and medium-sized motor product quality supervision and inspection center Electric motor test bench
The National Small and Medium-Sized Motor Product Quality Supervision and Inspection Center is affiliated to Shanghai Electrical Apparatus Research Institute (Group) Co., Ltd. It is a non-profit inspection agency with an impartial third-party status. After more than 50 years of construction, it has become one of the testing institutions with the strongest technical force in China, undertaking China Compulsory Certification (CCC) certification, scientific and technological achievements appraisal, performance test, reliability test, voluntary product certification, energy-saving products Certification test, electromagnetic compatibility (EMC) test, environmental adaptability test and various entrusted inspections.
The small and medium-sized motor test bench can meet the needs of type tests and factory tests of various synchronous motors, asynchronous motors, variable frequency motors, DC motors, frequency converters, etc. There are many types of motors to be tested, and the voltage level and power coverage are wide, requiring motor testing The test system can realize high-precision measurement in a wide range of frequency, amplitude and power factor.
System Architecture of small and medium-sized motor test bench
The small and medium-sized motor test bench includes a medium-sized high-voltage 2.5MW motor test bench and a small-power motor laboratory comprehensive test bench. The above figure is a architecture of the main measurement principle. This test bench is suitable for electrical parameter testing of high and low voltage AC, low voltage DC, low frequency, power frequency, frequency conversion to intermediate frequency motor tests, and is suitable for electrical parameters of motor tests powered by non-sinusoidal wave test power supplies such as sine wave, overlapping frequency wave, and PWM wave. The test accuracy of the fundamental wave of the whole frequency band meets the requirements of the national standard for motor testing and meets the requirements of electromagnetic compatibility (EMC).
Equipment List of the electric motor test bench
Precision power sensor
Precision power sensor
Precision power sensor