Three phase transformer winding DC Resistance Tester
Here show you guys how the transformer dc resistance tester(WR)works:
20A three phase transformer DC Resistance Tester Single-Phase Winding Resistance Tester
DC resistance of transformer is the essential item to be tested in semi-finished product, finished product delivery test, installation, handover test and preventive test by electric power department, and is effective to help locating manufacturing defects such as materials selection for transformer coil, welding, looseness on connection, strand breaking, wire breaking and so on, as well as hidden dangers after operation. To meet the requirement for quick measurement of DC resistance of transformer, our Company has developed RUN-DCR320A 3 phase Transformer DC resistance tester aiming at YN connection winding.
The tester can fulfill functions such as simultaneous energization on three phases, independent current sampling, voltage sampling, as well as simultaneous measurement and display of three-phase resistance value and three-phase unbalance rate, thus can significantly reduce test time for DC resistance of transformer, solve the problem of long test duration for DC resistance of each tapped winding of electric power transformer. It requires only 1/3 of the time required by traditional method.
Ⅰ: Technical Parameters of this three phase transformer winding resistance tester:
|
Item |
Parameter | Inaccuracy |
|
Test current |
1 Phase: Max. 10A+10A |
|
| Range | 0-100 Ω | ±(0.2%+2digit) |
| Best Resolution | 0.1μΩ | |
| Data Storage | 500 sets | |
| Operating Temperature | -20℃～40℃ | |
| Relative Humidity | <80%RH，non-condensing | |
| Power supply | AC 220V±10%，50Hz±1 Hz | |
| Dimension | 400*340*195（mm） | |
| Weight | Instrument box：8 KG | Accessory Box: 6 KG |
Ⅱ: Features about the transformer dc resistance tester:
1. The instrument has big current output and can select current automatically; convenient for operation.
2. Three-channel measurement, simultaneous measuring of three resistance values and calculating three-phase resistance unbalance degree.
3. Be able to measure three phases simultaneously, and also be able to measure with single channel as traditional method; possessing temperature conversion function, convenient for use.
4. Possessing perfect protective circuit which is highly reliable.
5. Built-in calendar clock, 500 sets of data storage, retrieval and printing function.
6. Be able to set printing information such as phase sequence and tapping position of resistance.
7. Industrial plastic shell case with light weight; convenient for carrying.
8. Possessing audio discharging alarm with clear discharging indication to reduce mis operation.
Ⅲ: Detailed pictures of this transformer test equipment:
Ⅳ: Service for the electric test equipment of Run Test:
The instrument will be repaired and replaced free of charge for product quality problems within one year from the date of purchase, and will provide lifetime warranty and technical services.
If you find any abnormalities or malfunctions in the instrument, please contact the company in time to arrange the most convenient solution for you.
