Precautions for Using the Volt-Ampere Transformation Ratio Polarity Comprehensive Tester
The Volt-Ampere Transformation Ratio Polarity Comprehensive Tester is specifically designed for relay protection professionals to test the volt-ampere characteristics, transformation ratio, and polarity discrimination of current transformers. It can also be used for transformer polarity discrimination tests. It is a multifunctional test instrument with a high performance-to-price ratio. It features automatic testing, comprehensive functions, high safety, ease of use, and large capacity.
Precautions for Using the Volt-Ampere Transformation Ratio Polarity Comprehensive Tester
1. Before using the instrument, carefully read the product manual to master the correct usage methods.
2. Ensure correct wiring during tests with the Volt-Ampere Transformation Ratio Polarity Comprehensive Tester. Only power on after verifying that the wiring is correct and connections are reliable.
3. When wiring for transformation ratio tests, especially tighten all connection terminals in the primary circuit where current is high, to minimize contact resistance and ensure smooth testing.
4. When increasing voltage or current with the Volt-Ampere Transformation Ratio Polarity Comprehensive Tester, adjust slowly near the test points to ensure reliable data acquisition.
5. The Volt-Ampere Transformation Ratio Polarity Comprehensive Tester has comprehensive overcurrent and overvoltage protection under microcontroller control. In various test operations, 1.1 times the maximum set parameter is the default protection action value. Additionally, the "Test Switch" also has overload and thermal protection as a backup. If protection activates during testing, you must identify the cause and eliminate the abnormality before continuing. Do not operate blindly to avoid unnecessary losses.
6. The main unit of the Volt-Ampere Transformation Ratio Polarity Comprehensive Tester operates on 220V AC power, while the test power supply is 220V or 380V AC. Do not confuse the two.
