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Three-phase asynchronous motor test bench test system solutions
Release time:
2022-08-06
three-phase asynchronous motor test bench refers to the motor test platform that provides type test and factory test for three-phase asynchronous motors, and can provide hardware platform and software services required for test motors. The whole test process with reference to GB/T1032-2012 three-phase asynchronous motor test method, to provide accurate test data for the test, is a set of measurement technology, automatic control technology, computer technology, motor detection technology, power electronics technology is equal to one of the three-phase asynchronous motor comprehensive test bench. Design basis and test item
01 of
1. three-phase asynchronous motor test bench, design basis of three-phase asynchronous motor test bench
, GB755-2008 rotating motor_quota and performance
, loss determination of GB755-2-2003 rotating motor (except traction motor)
, GB/T1032-2012 three-phase asynchronous motor test method
, GB/T22670-2008 inverter power supply test methods for three-phase cage induction motors
-5GB/T25123.2-2010 Electric traction-Rotating electrical machines for railway rolling stock and road vehicles-Part 2: test items of AC motor
02 powered by electronic converter and three-phase asynchronous motor test bench
and no-load test: (automatically completed)
and blocked-rotor test: (manually input blocked-rotor current multiple, automatically completed)
and low-frequency blocked-rotor test: (manually input blocked-rotor current multiple, automatically completed)
: (Automatically completed)
: Determination of T1032-2012 efficiency: According to the, B, B1, E1, F1, G1 and H methods specified in GB, there are seven kinds (automatically completed). Determination of load characteristics of inverter-powered motors: (done automatically)
and the temperature rise test:
and the temperature rise test★Direct load method: Tow method (automatic completion)
.★Equivalent load method: reduce the voltage load method, reduce the current load method, the stator overlap frequency method. (Automatically completed)
-Large torque measurement: (Automatically completed)
-Small torque measurement: (Automatically completed)
-T-N curve measurement: (Automatically completed) includes: forward, reverse curve. When loading, the low speed should be <2% Ne.
-Torque test: (Automatically completed)
-Overspeed test: (Automatically completed)
-Withstand voltage test: (Buyer's own pressure equipment, manually completed, manually input)
-Short-time high-voltage test: (Automatically completed)
-Determination of insulation resistance: (Buyer's own insulation resistance meter, manual test, manual input)
-determination of cold DC resistance: (buyer's own DC resistance test, manual input)
2. three-phase asynchronous motor demand analysis 01, main power test index requirement analysis
-determination of cold DC resistance after the completion of this asynchronous motor test bench can meet the following requirements:
Type test and factory test of 1, 380V, 690V, 1140V, 3kV, 6kV and 10kV three-phase asynchronous motors;
Type test and factory test of ordinary asynchronous motor, variable frequency asynchronous motor and traction motor; 35 Jian Jian 3, the large capacity of asynchronous test is 2MVA for towing and 4MVA for single machine; A, 380V can meet the small 7.5kW, large 2MVA motor test
frequency conversion B, 690V, 1140V, 3kV, 6kV, 10kV can meet the requirements of large 4MVA motor test
02, main power test summary
serial number parameter name basic wave frequency range
input measurement
three-phase voltage 0~10000V 0.1~150Hz
three-phase current 0 ~ 2200A 0.1~150Hz
Three-phase voltage 0~10000V 0.1~150Hz
Three-phase asynchronous motor test bench is powered by frequency converter, the input can be determined by switching whether the LC filter needs to be put in. Two synchronous motors of the same model and specification are used to carry out load temperature rise test in the form of drag. SP1 uses SP103152C * 3 variable frequency power sensor to measure the output power of the test power supply, and SP2 uses SP103152C * 3 variable frequency power sensor to measure the input power of the test power supply. When the test machine is running, the test motor is used as a load to run as a generator, and the test energy is fed back to the 10kV power grid. The variable frequency power sensor is transmitted to the corresponding power unit communication interface of WP4000 variable frequency power analyzer through optical fiber. The load characteristic test of variable frequency motor requires a low frequency of 3Hz or less, and a high test frequency of 100Hz for variable frequency motor load characteristic test with a rated frequency of 50Hz. Considering the test requirements of motors with different reference frequencies, the frequency range that can be accurately measured by the test system shall at least meet 3~200Hz, and 0.1Hz ~ 400Hz is considered in this plan. That is, the test station test system requires accurate measurement of voltage in the range of 20V ~ 13kV, current in the range of 5A ~ 3000A, frequency in the range of 0.1Hz ~ 400Hz, and power factor in the range of 0.05~1.
4. three-phase asynchronous motor test bench system test equipment selection
serial number equipment name usage technical parameter quantity
SP103252C inverter input and output power measurement 10000V/2500A 6
WP4000-6 power analyzer inverter input and output power measurement 6 power channel 1
5. three-phase asynchronous motor test bench test system features brief description
three-phase asynchronous motor test bench test system uses WP4000 variable frequency power analyzer, its characteristics refer to the characteristics of WP4000 variable frequency power analyzer.
Comparison of different measurement methods
2022-08-16
2022-08-16
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