How To Inspect And Test High And Low Voltage Electrical Equipment Before Power Transmission In Substation?

How to inspect and test high and low voltage power Automatioc changover switch devices before power is delivered to the substation?

Before power is delivered to the substation, the following inspections and tests should be carried out on high and low voltage electrical devices.

(1) Perform withstand voltage tests on high and low voltage electrical fittings and electrical devices and insulating oil.

(2) Measure the insulation resistance of each component and verify whether the phase is correct.

(3) Check whether the contact is fixed reliably, the contact is tight, and the contact surface is sufficient; whether the connection and disconnection actions of various switchgear are correct.

(4) Whether the fuse in the fuse meets the design requirements.

(5) Whether the relay protection device operates normally and the interlocking device is effective.

(6) Whether the grounding device is qualified.

(7) Whether the display of the signal and indication device is correct and whether the DC system is reliable.

(8) Whether the power fittings and fire-fighting equipment are complete.

What are the basic requirements for power fittings arresters?

When struck by direct lightning, it can quickly lead the lightning current into the ground to ensure that the lightning current can be safely dispersed during discharge.