The tester can be used to test:
Sensitive objects: transformer, mutual inductor, reactor, etc;
Resistive objects: conductive wire, switch contact, copper bar, etc.
The DC resistance test of transformer winding is an indispensable test item after transformer is transferred, overhauled and changed. It adopts new power technology, with stable performance, quick measurement, compact size, easy to use, high precision of measurement and good repeatability of data. It is the ideal equipment to measure the DC resistance of transformer windings and high power inductance devices.
The device is specially designed for 3 channels DC resistance test of YN winding. It realizes 3 phases imposing voltage at the same time, independently taking current samples and voltage samples, testing 3 phases resistance values and calculate the unbalance rate synchronizely. greatly reduces the testing time of transformer winding DC resistance, solving the problem of long testing for power transformer's dividing connection winding DC resistance, the testing time is just 1/3 comparing to traditional test.
Product Features:
1. Large output current, automatically choose current, easy to operate.
2. 3 channels testing, real-time collecting, synchronizely testing 3 resistance values and calculate the unbalance rate between 3 resistance values.
3. Both 3 phases synchronizely testing and single phase testing are available, and converting temperature values at the same time, easy to operate.
4. Have perfect protective circuits, very reliable.
5. Built-in calender clock, can reserve 500 groups datas, retrieving or printing datas at any time.
6. Can reset resistance phase sequence, dividing connect position and other printing information.
7. Portable design, light weight, easy to carry with.
8. Sound discharging alarm, clear discharge indication, reducing wrong operation.
Technique Parameters:
| Output Current |
Auto choose current(max 20A) |
| Measurement Range |
0~100Ω |
| Accuracy |
0.2%±2 |
| Min Resolution |
0.1μΩ |
| Working Temperature |
-20~40ºC |
| Environment Humidity |
≤80%RH, no dewing |
| Working Power |
AC220V±10%, 50Hz±1Hz |
| Dimension |
400x340x195mm |
| Net Weight |
8kg |
Product detailed picture:(Different current level is available, English version is available)
Company Profile:
Wuhan Hezhong Electric Equipment Manufacture Co., Ltd is a high-tech enterprise professionally engaged in R & D, manufacture and marketing of power testing products, instruments, power industry automation systems for 20 years.We export completed set to Korea, Singapore, Vietnam, India, Ecuador, Paraguay, Pakistan, Philippines, Russia, Italy, Austria, Portugal, Chile such as PD test system, impulse voltage generator, temperature rising test system, transformer comprehensive test system, cable fault detect system and varies of instruments for transformer, circuit breaker, switchgear, lightning arrestor, insulator, cable, battery, SF6 gas and so on.
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