Winding resistance of transformers is a good indicator of transformer condition. Developing defects like corroded terminal connections, inter coil shorts and core to coil shorts can affect the resistance of the windings. However, you can’t just use any Ohmmeter to measure coil resistance of distribution transformers. You must use a device that has enough current to pass through the thick windings and has protective measures to reduce the incidence of inductive kickbacks.
If you are looking for a winding resistance test set, you might want to check out the testers from Raytech. The Winding Resistance (WR) series testers offer accurate measurements and reliable operation.
Here is a comparison of features of the WR testers.
Raytech WR50-1A 50A Winding Resistance Test Set
- Two channel winding resistance test set
- 50A output for testing large transformers with repeatable readings
Raytech WR50-12 Two Channel Winding Resistance Test Set
- Charge inductive loads up to 1500 Henry
- 50 Amperes output
- Variable test voltage from 0 to 30 volts
Raytech WR50-2 Two Channel Winding Resistance Test Set
- Two channel winding resistance test set
- 50A output for testing large transformers with repeatable readings
Raytech WR14 15 Amp Winding Resistance Meter
- Charges inductive loads up to 1500 Henry
- 2 independent measuring channels
Protec Equipment Resources offers various electrical test equipment acquisition options to cater to your needs. You have the option to rent, lease or purchase equipment. We carry a wide range trusted brands like Raytech, Megger, Doble Test Equipment and more. Please do not hesitate to contact one of our specialists today for assistance.