TWR-H Handheld Turns Ratio & Winding Resistance Tester - Beijing Kanggaote Instruments and Equipment

Product introduction

Handheld TWR-H device is DV Power single-phase instrument designed for measuring transformer winding resistance and turns ratio. The instrument has two output DC sources for measuring transformer winding resistance. The first DC source can output up to 2 A DC and is used for injecting current to the transformer’s high voltage winding. The second DC source can output up to 10 A DC and is used for testing the transformer’s low voltage winding. TWR-H is powered by an internal Li-Ion battery. Up to 100 tests can be performed with a fully charged battery.

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▪ Unique handheld instrument on the market
▪ Performs 3 different tests:
▪ Turns ratio
▪ Winding resistance
▪ Demagnetization
▪ Single-phase test voltage up to 40 V AC
▪ Two DC current sources:
▪ Test current up to 2 A DC for transformer HV side
▪ Test current up to 10 A DC for transformer LV side
▪ Extremely lightweight – only 1.4 kg / 3.1 lbs
▪ Battery-powered
▪ Tests single-phase and three-phase transformers

The list of instrument application includes:
▪ Winding resistance measurement of distribution and instrument transformers, and motors and
generators
▪ Turns ratio measurement of distribution transformers
▪ Turns ratio verification of instrument transformers
▪ Turns ratio deviation calculation
▪ Excitation current measurement of distribution and instrument transformers
▪ Phase angle measurement of distribution and instrument transformers
▪ Polarity check of instrument transformers
▪ Demagnetization of distribution and instrument transformers, and motors and generators

TWR-H Handheld Turns Ratio & Winding Resistance