The Transformer and Mutual Inductor Polarity Tester is a new generation CT and PT polarity testing instrument developed by Wugao Electric Measurement Company after extensive market research.
The traditional method for testing mutual inductor polarity involves connecting the positive and negative terminals of a dry battery to the polarity and non-polarity terminals of the current transformer's primary side, and performing a make-and-break test. Meanwhile, an ammeter or a multimeter in mA mode is connected to the secondary side to observe the deflection direction of the pointer. This requires one person to observe the pointer deflection and another to perform the make-and-break test. A set of CTs with three phases each has protection, metering, and measurement coils, requiring multiple make-and-break tests, which is quite cumbersome. Moreover, when the current transformer has a large turns ratio, the secondary induced current is very small, making it almost impossible to deflect the pointer.
This product is suitable for transformer polarity testing. The test is simple and the results are reliable.
This instrument has outstanding features such as novel practicality, beautiful appearance, portability, strong anti-interference capability, and high stability and reliability.
Main Functions:
1. Can measure CT polarity, including CT polarity with large turns ratio;
2. Can measure electromagnetic PT polarity;
