Product Introduction
High‑precision transformer DC resistance tester is developed for high‑standard measurement scenarios such as factory delivery inspection and laboratory calibration. Adopting high‑precision sampling chip and optimized circuit design, it realizes accurate measurement of micro resistance. Multiple safety protection and intelligent data management functions ensure long‑term stable operation in complex industrial environments.
Product Parameter (specification)
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Technical indicators |
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Output current |
Single-phase 50A, 20A, 10A, 5A, 1A, 0.2A, 10mA, <1mAThree-phase 25A + 25A, 10A + 10A, 5A + 5A, 1A + 1A, 0.2A + 0.2A |
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Measurement range |
Single phase50 A setting: 75μΩ～0.4Ω20 A block 0.5mΩ～1 Ω 10 A block 1.0mΩ～2 Ω5 A block 10 mΩ～4 Ω 1 A block 0.1Ω～20Ω0.2A block 1.0Ω～100Ω 10mA block 50Ω～2kΩ<1mA range 500Ω～25kΩThree-phase25A + 25A range, 0.1mΩ ~ 0.25Ω10A + 10A setting: 0.5mΩ ~ 0.6Ω5 A + 5 A range, 10 mΩ ~ 1.5 Ω1 A + 1 A range 0.1 Ω ~ 7.0 Ω0.2A + 0.2A range for 1.0 Ω to 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 |
428mm×350mm×230mm |
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Instrument weight |
13.3 kg |
Product features and applications
- Single‑phase maximum 50A high current output, three‑phase 25A+25A test
- Micro‑ohm level high precision measurement, wide resistance range
- Supports neutral point lead resistance test of Yn winding
- Automatic/manual current selection, adaptive to different test objects
- Complete safety protection and anti‑interference design
- 7‑inch capacitive touch screen, friendly human‑machine interface
- USB communication, optional Bluetooth and upper computer control
- Suitable for high‑precision measurement of large transformers
Prodection details
- Large power transformer factory precision inspection and quality control
- Laboratory calibration and scientific research test of inductive equipment
- Transformer fault diagnosis, maintenance and re‑inspection
- Handover test of large main transformers in power grid
- High‑precision DC resistance test of high‑power inductors
Company Qualifications
FAQ
1) What is the biggest advantage of MOEORW‑W4750?
It has 50A high current output and micro‑ohm level high precision measurement ability.
2)Does it support neutral point test?
Yes, it can test Yn winding neutral point lead resistance.
3)What is the minimum measurable resistance?
It can measure down to 75μΩ under 50A gear, with high resolution.
4)Is it suitable for laboratory use?
Yes, its high precision and stability are specially designed for laboratory and factory calibration.
5)Can it be connected to upper computer for remote control?
Yes, it supports USB communication and optional Bluetooth wireless control.
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