Transformer (35kV and below)/electrical equipment testingHow to apply for a report? What items need to be tested? We will conduct testing and evaluation in strict accordance with the standards. We can also provide personalized testing plans and reports according to your needs.

How to inspect electrical equipment mainly includes two aspects: wire calibration and insulation resistance measurement, as follows:

1. The secondary circuit of wire calibration should be calibrated before and after wiring to ensure that the wire can be correctly connected to the terminal 2. Measure insulation resistance 1) For newly installed secondary circuit wiring, insulation resistance should be measured using a 500-1000V megohmmeter during inspection. For circuits with a voltage below 24V, only a megohmmeter with a voltage not exceeding 500V can be used. 2) The insulation resistance needs to comply with the following regulations: (1) The voltage of the DC small busbar and the control panel small busbar should not be less than 10M Ω; (2) Each branch of the secondary circuit and the power circuit of the switch and isolation switch operating mechanism should not be less than 1M Ω; (3) The operating circuit and protection circuit connected to the main current circuit should not be less than 1M Ω

Test report function

1、Project bidding: issue authoritative third-party CMA/CNAS qualification report；

2、E-commerce platform entry: quality inspection reports recognized by major e-commerce platforms；

3、Used as sales report: issuing a test report with legal effect to make consumers feel more at ease；

4、Papers and scientific research: providing professional and personalized testing needs；

5、Judicial services: providing scientific, fair and accurate testing data；

6、Industrial problem diagnosis: verifying the troubleshooting and correction of problems in industrial production；