The motor leaves the factory online test bench
The online test bench of the motor factory utilizes an advanced industrial control computer for centralized management. This sophisticated system allows the completion of all testing items with a single wiring setup, seamlessly integrating measurements such as power frequency withstand voltage, grounding resistance, motor speed, and no-load tests. With unparalleled test speeds, high precision, user-friendly operation, and robust reliability, the system automatically analyzes and judges test results. Additionally, it offers comprehensive functions for generating, storing, and printing reports on a yearly, monthly, and daily basis, with all motor test parameters preset for optimal testing.
Key features:
1. Test items include: DC resistance, insulation resistance, turn-to-turn test, withstand voltage test, no-load test, and blocked rotor test.
2. DC resistance: Measures the motor winding resistance with precision.
3. Insulation resistance: Tests the insulation resistance between the phase wire and the motor shell.
4. Inter-turn test: Detects inter-turn and inter-layer short circuits, poor insulation, and out-of-tolerance conditions in motor or transformer coils.
5. Withstand voltage test: Measures the leakage current between the stator winding and the shell, with program control and computer-regulated voltage adjustments.
6. No-load test: Assesses voltage, current, power, power factor, and frequency under no-load conditions for both single and three-phase motors.
7. Stall rotor test: Evaluates voltage, current, power, power factor, and frequency during motor stall rotor conditions (instantaneous start), applicable to both single and three-phase motors.
8. Power supply: AC220V±15%, 50Hz±2 Hz (system working power supply).
9. Operating environment: Designed for a working temperature range of 0~40 °C.
10. Working humidity: ≤70% for optimal performance.
11. Completes all tests with a single wiring setup.
12. Fully microcomputer-controlled testing processes for precision and reliability.
Test items and accuracy level:
Cold DC resistance test: 0.01-20KΩ, segmented into seven ranges with automatic ambient temperature compensation. Accuracy: Grade 0.3.
Insulation resistance test: 1-500MΩ at 500VDC. Accuracy: Grade 5.
Insulation between impact turns: 0-3000 (5000) VP, with adjacent turns short circuit alarm at 1/200 turns.
Withstand voltage: 0-3000VAC; Leakage current: 0-20mA (100mA).
Power frequency withstand voltage test: Accuracy: Grade 3.0, program-controlled with computer-regulated voltage adjustments.
Locked-rotor test: Current range 0-500A; Voltage range 0-500V. Accuracy: Grade 0.5.
No-load test: Current range 0-500A; Voltage range 0-500V. Accuracy: Grade 0.5.
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