5kV Turn-to-turn Impulse Withstand Voltage Tester
The MEZJ-W5A Turn-to-Turn Impulse Withstand Voltage Tester employs the "impulse waveform comparison method." It alternately applies impulse voltages with specified peak values and front times to both the test specimen and a standard reference part of identical design. By comparing the differences between the two oscillating waveforms, it determines the integrity of the turn-to-turn insulation in motor windings. It provides intuitive identification of various faults including corona discharge, partial short circuits, wiring errors, incorrect winding identification, coil imbalance, and phase-to-phase short circuits.
Employing reliable measurement technology and circuit design, this instrument outperforms domestic counterparts in all performance and technical specifications. It is widely applicable for testing small motors, fractional horsepower motors, micro motors, power tools, transformers, relays, and similar products.
The MEZJ-5A Interturn Impulse Withstand Voltage Tester is simple to operate, safe, and reliable, complying with GB 755-87, JB/Z 294-87, and JB/Z 346-89 standards.
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500 to 5000 V (100 V increments) |
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0.01 μF |
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0.5 μs |
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< 5% (1kV–5kV) |
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Resolution;320×240; 5.1 inches; blue background with white text |
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90 W |
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AC 220V ±10%, 50Hz |
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0℃ to 40℃ |
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<=85% |
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380(W) × 190(H) × 470(D) mm |
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12.25 kg |
1. Utilizes "impulse waveform comparison method" to accurately identify multiple faults including turn-to-turn insulation, short circuits, and open circuits;
2. Excellent technical specifications with test accuracy <5%, voltage adjustment range 500–5000V (100V increments);
3. Compatible with Φ, Y, Δ connections and single-phase windings, suitable for motors, transformers, and other products;
4. Simple operation with button/foot pedal control; 5.1-inch LCD screen clearly displays waveforms and parameters;
5. Complies with multiple national standards; safety ensured by grounded housing and high-voltage protection design;
6. Intuitive waveform interpretation with included fault identification chart for rapid problem localization;
7. Compact dimensions (380×190×470mm), 90W power consumption, suitable for standard work environments;
8. Complete accessory set included for immediate use out of the box.
Suitable for micro motors, small and medium-sized motors, DC motors rated at 1140V or below, as well as transformer and electrical appliance windings. It detects inter-turn insulation faults (such as inter-turn short circuits, open circuits, and corona discharge), covering inspection scenarios before and after impregnation for finished and semi-finished products.
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