The Motor Factory Online Test Bench: Ensuring Precision and Efficiency in Every Test
The online test bench at the motor factory employs a robust industrial control computer for centralized management. This setup allows for the completion of all testing procedures with a single wiring. It seamlessly integrates the measurement of various parameters such as power frequency withstand voltage, grounding resistance, motor speed, and no-load tests. Key advantages include rapid testing speed, unparalleled precision, user-friendly operation, and exceptional reliability. The system automatically analyzes and evaluates test results, and it boasts capabilities for annual, monthly, and daily report statistics, storage, and printing. Predefined parameters ensure thorough and consistent testing of motors.
Key Features of the Online Test Bench:
1. Comprehensive Test Items: DC resistance, insulation resistance, turn-to-turn testing, withstand voltage testing, no-load testing, and blocked rotor testing.
2. DC Resistance: Accurately measures the resistance of motor winding resistance.
3. Insulation Resistance: Tests the insulation resistance between the phase wire and the motor shell.
4. Inter-Turn Test: Identifies inter-turn and inter-layer short circuits, insulation defects, and tolerance issues in motor or transformer coils.
5. Withstand Voltage Test: Measures the leakage current of the withstand voltage between the stator winding and the shell. Features programmable control and computer-regulated voltage adjustment.
6. No-Load Test: Measures voltage, current, power, power factor, and frequency of the motor under no-load conditions (suitable for both single and three-phase).
7. Stall Rotor Test: Evaluates voltage, current, power, power factor, and frequency during motor stall rotor conditions (instantaneous start), applicable for both single and three-phase motors.
8. Power Supply: Operates on AC220V±15%, 50Hz±2 Hz, ensuring stable system performance.
9. Operating Environment: Optimized for working temperatures between 0~40 °C.
10. Humidity Conditions: Efficiently operates under working humidity levels ≤70%.
11. Single Wiring Completion: All tests are efficiently completed with the initial wiring configuration.
12. Microcomputer-Controlled Processes: All testing procedures are meticulously controlled by a microcomputer for enhanced accuracy.
Test Items and Accuracy Levels:
Cold DC Resistance Test: Range of 0.01-20KΩ, spanning seven gears with automatic ambient temperature compensation. Accuracy: 0.3 grade.
Insulation Resistance Test: Measures 1-500MΩ at 500VDC. Accuracy: 5 levels.
Impact Insulation Test Between Turns: Ranges from 0-3000 (5000) VP with an adjacent turn short circuit alarm at 1/200 turns.
Withstand Voltage Test: 0-3000VAC; Leakage current: 0-20mA (100mA).
Power Frequency Withstand Voltage Test: Program-controlled with an accuracy of 3.0. Features computer-controlled voltage regulation.
Locked-Rotor Test: Current range of 0-500A; Voltage range of 0-500V with an accuracy level of 0.5 grade.
No-Load Test: Current range of 0-500A; Voltage range of 0-500V with an accuracy level of 0.5 grade.
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