We are pleased to announce the official launch of the DV Power TWR250B, a new three-phase test analyser developed for fast, accurate, and fully automated field testing of power transformers.
The TWR250B enables single-step three-phase connection to all transformer windings, significantly reducing setup time during on-site testing. With turn ratio testing up to 250 V AC and winding resistance testing up to 25 A DC, the instrument delivers precise and repeatable measurement results.
Automated OLTC testing, demagnetisation, and vector group detection are performed directly from the 10.1-inch graphical touchscreen, allowing intuitive operation in the field. The built-in battery ensures reliable testing even in locations without an external power supply.
TWR250B
Features:
Multiple AC and DC tests on a three-phase transformer
Test voltages up to 250 V AC
Test currents up to 25 A DC
Battery (built-in battery) or mains powered
Large 10.1” graphical touch screen display
One-time connection to a three-phase transformer
Built-in tap changer control unit
Built-in thermal printer