The Biddle 577500 / 57J Energized Winding Resistance Tester is a modified Wheatstone bridge that is used to measure the dc resistance of ac energized windings, thus enabling the determination of winding temperature rise while the windings are operated under actual load conditions.Â
It is suitable for measuring the winding resistance of transformers, chokes, induction coils, heater coils, generators and all types of motors where there are no brushes in series with the circuit being measured.
Here are some of the features of the Biddle 577500 / 57J Energized Winding Resistance Tester:
- Wide measurement range of 0 to 1000 ohms
- High resolution of 0.1 ohms
- High accuracy of 0.1% of reading + 0.1% of range
- Suitable for measuring the winding resistance of energized equipment
- Ideal for testing power transformers, motors, generators, and other electrical apparatus
The Biddle 577500 / 57J Tester has a wide measurement range of 0 to 1000 ohms, with a resolution of 0.1 ohms. It has an accuracy of 0.1% of reading + 0.1% of range.
The Biddle 577500 / 57J Tester is a valuable tool for any electrician or technician who needs to measure the winding resistance of energized equipment. It is ideal for testing power transformers, motors, generators, and other electrical apparatus.
The physical manual is inside the Biddle case.Â
