Transformer Ohmmeter is a field-portable instrument designed specifically to measure the resistance of all types of magnetic windings safely and accurately.
It tests transformers, shunt reactors, rotating machine windings and performs low resistance measurements on connections, contacts and control circuits. Built in printer, it’s convenient to print data on site.
The DCR Series Transformer Ohmmeters are used to:
Perform field testing of CT, PT, power transformer windings and their associated tap changers, and motors/generators.
Verify factory winding resistance test results.
Perform factory heat run tests.
Diagnose and pinpoint problems such as the presence of defects in transformers, such as loose connections, and poor tap changer operation.
| Model | DCR50/DCR40 | DCR20 |
| Output Current | 50A/40A、20A、10A、5A、1A、0.2A、10mA、<1mA | 20A、10A、5A、1A、0.2A、10mA、<1mA |
Test Range | 50A (75uΩ~0.4Ω) 40A (0.1mΩ~0.5Ω) 20A (0.5mΩ~ 1 Ω) 10A (1.0mΩ~ 2 Ω) 5A (10 mΩ~ 4 Ω) 1A (0.1Ω~ 20Ω) 0.2A (1.0Ω~ 100Ω) 10mA (50Ω~ 2kΩ) <1mA (500Ω~ 25kΩ) | |
Accuracy | ±(reading×0.2%+2) | |
Power Supply | 200~240V AC, 50/60Hz | |
Temperature | -10℃~50℃ | |
Humidity | <90%, non-condensing. | |
Dimension | 428mm×350mm×230mm | 400mm×315mm×223mm |
Weight | 13.2 kg | 8.2 kg |
