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Test environment of transformer ratio measuring instrument?
2. If the test line is short-circuited, and the high and low voltages are reversed, the fuse will blow. After the fuse is blown, if measurement is made, "Measuring, please wait!" Then stop. Please turn it off, replace the insurance with the same capacity and retest.
3. Keep good connection and contact. The instrument should be grounded!
4. The workplace of the instrument should be far away from strong electric field, strong magnetic field and high-frequency equipment. The less interference from the power supply, the better. Lighting lines should be selected. If the power interference is still large, the instrument can be powered by AC purified power supply. The capacity of AC purification power supply is greater than 200 VA ..
Specific test environment information can be found on the website of Wuhan Huatian Electric Power Company.
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