1. Before using AC RESONANT TEST SYSTEM for the withstand voltage test. Please measure the insulation resistance of the sample according to the test procedure and confirm that the sample meets the relevant insulation requirements before proceeding to the next step of the withstand voltage test.
2. Before using the frequency conversion series resonant device to carry out the withstand voltage test and start the device, please recheck whether the wiring is correct. For example, the voltage output end of the excitation transformer should be connected to the lower end of the lowermost reactor with a mopping cable, and the high-voltage output line of the upper end of the upper reactor and the connection line of the compensation capacitor and the voltage divider should be suspended as far as possible, and not close to the ground or surrounding objects. In order to prevent the high-voltage line from grounding, object-to-object discharge, etc., because every small mistake you make will cause irreparable damage to the equipment and personnel, and every time you correct the error, how much will it be for the safety of the personnel and equipment on site Is precious.
AC RESONANT TEST SYSTEM for substation
3. In consideration of the safety of personnel and equipment, the frequency conversion series resonant device has higher grounding requirements. When connecting the grounding network of the substation, the grounding pile, the switch cabinet, the dirt, rust, and paint of the transformer housing should be connected before the connection Deal with it to ensure the effective connection between the grounding wire and the grounding device. When there is no grounding device for field operations, you can use a metal rod of about 150cm in length and choose a relatively humid place. The metal rod can be buried in the ground no less than 120cm. If necessary, an appropriate amount of water can be injected. This will be more effective for Guodian Xigao. Reliable grounding of equipment.
4. Discharge of the test product and the return of the overvoltage protection of the instrument will cause damage to the instrument. The phenomenon of the discharge process is very different. In addition, the instrument has a lot of work in the field, the transportation environment and the use environment are poor. Therefore, it is strongly recommended that you: Dust prevention measures.
5. The equipment power supply should use two 380V live wires. The 220V live wire of the instrument should be tapped with the 380V live wire. Try to avoid using electric welding machines and other equipment in the power circuit to prevent interference. When working with generator power, the neutral wire is grounded.
Post time: Sep-27-2021