Doble

TRM-203

The TRM-203 is a three phase transformer winding resistance meter that allows the user to connect all test cables to the transformer bushings. The unit will then measure the transformer resistance value for each of the phases without the need to disconnect and reconnect cables for each phase.

Electrical Testing & DiagnosticsPower Transformer TestingAvailable on request
Technical sales support
Response within one business day

Details

The TRM-203 is a three phase transformer winding resistance meter that allows the user to connect all test cables to the transformer bushings. The unit will then measure the transformer resistance value for each of the phases without the need to disconnect and reconnect cables for each phase. The TRM-203 can provide a fast and stable reading of very large transformers by utilizing a 60Vdc power supply. It is capable of outputting a selectable test current from 1A to 25A. Since the TRM-203 can accurately measure resistance from 1 micro-ohm to 2000 Ohms, it can be used as a micro-ohm meter to measure EHV circuit breaker contact resistance, or for any low resistance measuring application.

  • Perform three phase test on a transformer without the need to switch cables

  • Can provide individual Delta winding resistance values

  • Can provide individual Wye (with no neutral) winding resistance values

  • Demagnetize transformer after test

  • Selectable test current from 1A to 25A

  • Computer control via RS-232C, USB, or Bluetooth interface

  • Built-in 2.5″ wide thermal printer

Documents

Can’t find what you need?

We represent specialist brands across reliability, testing, diagnostics and instrumentation.

Talk to our team