Operation precautions of DC resistance tester
In the measurement process of the DC resistance tester, in addition to strictly complying with...
2026
Several methods of circuit breaker testing
1) Use electromagnetic oscillator or drum instrument. When the early oil switches were tested for...
What are the partial discharge test procedures?
Partial discharge test samples should be pretreated in accordance with relevant regulations: keep the surface...
How to operate the ratio tester?
operating 1. Wiring: Connect the terminals of the instrument (A, B, C, a, b, c)...
Safety measures before high voltage test
Insulation defects of high-voltage test transformers are an important factor that causes failures between enterprise...
Partial discharge acoustic emission detection
The substation is an important part of the power transmission system, and the transformer is...
Maintenance of inflatable test transformer
Precautions for inflatable test transformer: The layout of the test equipment should have a sufficient...
Precautions for winding deformation tester
(1) Before use. Please check the appearance of the tester first. Check whether the position...
Common abnormalities of loop resistance tester
The loop resistance tester will inevitably encounter various abnormal problems in HV Hipot Electric Co.,...
DC resistance detection of transformer winding?
The transformer is one of the indispensable electrical equipment in the power system, and it...