Product Introduction
MOEORW‑W4653 is a professional DC resistance test instrument designed for power transformers. It realizes one‑time wiring to complete three‑phase test, with fast test speed and stable data. Equipped with automatic demagnetization, back EMF protection and power‑off protection, it can effectively reduce residual magnetism risk and ensure equipment safety. The 7‑inch touch screen and built‑in printer make field operation more convenient.
Product Parameter (specification)
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DC resistance test |
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Output current |
Single phase 40A , 20A, 10A, 5A, 1A, 0.2A, 10mA , < 1mA Three-phase 2 0A+ 2 0A, 10A+10A, 5A+5A, 1A+1A , 0.2A + 0.2A |
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Measurement range |
Single-phase 40A range 0.1 mΩ ~ 0.5 Ω 20 A setting: 0.5mΩ ~ 1Ω 10 A setting: 1.0mΩ ～ 2Ω 5. A setting: 10 mΩ ~ 4 Ω 1 A gear 0.1Ω ～ 20Ω 0.2A range, 1.0 Ω to 100 Ω 1 0 mA range 50 Ω ~ 2 kΩ <1m A range 500 Ω ~ 25 kΩ Three-phase 20A + 20A range , 0.2mΩ ~ 0.3Ω 10A + 10A setting, 0.5mΩ ~ 0.6Ω 5 A + 5 A block 10 mΩ ~ 1.5Ω 1 A + 1 A block 0.1 Ω ~ 7.0Ω 0.2 A+ 0.2 A block 1.0 Ω ~ 30 Ω |
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Accuracy |
±(reading value × 0.2% + 2 digits) |
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working power supply |
AC220V±10% , 50/60Hz |
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Operating temperature |
-10℃～50℃ |
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relative humidity |
<90%, no condensation |
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Instrument volume |
428 mm × 350 mm × 230 mm |
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Instrument weight |
1 3.4 kg |
Product features and applications
- Supports single‑phase 40A high current output, three‑phase 20A+20A synchronous test
- One‑time wiring completes all phase tests, greatly improving test efficiency
- Built‑in automatic demagnetization and magnetization measurement functions
- Automatically calculate three‑phase unbalance rate and resistance change rate
- Multiple protections: wrong connection alarm, back EMF protection, wire break protection
- 7‑inch true color touch screen, knob + touch dual operation
- Built‑in thermal printer, local data storage and USB export
- Suitable for Yn, Y, Δ three‑phase winding test
Prodection details
- Transformer semi‑finished and finished product factory inspection
- Power transformer installation, handover and acceptance test
- Substation routine preventive test and hidden danger detection
- On‑site rapid DC resistance test of distribution transformers
- Demagnetization treatment after high‑voltage side test
Company Qualifications
FAQ
1.What is the maximum test current of MOEORW‑W4653?
The single‑phase maximum output current is 40A, and three‑phase simultaneous output is 20A+20A.
2.Does this model support automatic demagnetization?
Yes, it has built‑in automatic demagnetization function to avoid residual magnetism influence.
3.What kind of transformer windings can it test?
It supports Yn, Y and Δ three‑phase winding DC resistance test.
4.What is the test accuracy?
Accuracy is ±(reading × 0.2% + 2 digits), with high stability and good repeatability
5.Does it have data storage and printing function?
Yes, it can store 200 groups of data and equipped with a thermal printer.
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