How to remove the energy storage spring of 10kv switch cabinet

What is a 10kV switch cabinet?

Outgoing cabinet: it is the switch cabinet that distributes electric energy from the bus to the power transformer. This switch cabinet is one of the 10kV outgoing cabinets Composition: three groups of three coil current transformers, disconnectors, circuit breakers, knife switches and live display devices

How do you close a power switch?

To close the switch, the handle is inserted into the spring charging cam, then rotated upward through an angle of 120 degrees. This action charges the operating spring, and as the mechanism is forced past toggle, the stored energy of the spring is released and transferred to the main shaft that snaps the switch closed.

Who should re-fuse high-voltage switchgear?

Re-fusing of high-voltage switchgear should be performed only by qualified persons, observing the following precautions. These recommendations may differ from standard operating procedures and safety practices of certain electric utility companies. Where such discrepancy exists, the electric utilities should follow their operating procedures.

How do you clean a switch?

All switches, including insulators and operating arms should be thoroughly cleaned periodically by wiping with a clean cloth to prevent accumulations of dust. A mild detergent can be used to remove excessive contamination from insulators, barriers and painted surfaces. Dry thoroughly after washing.

Should a padmount switchgear be disconnected?

Care must be exercised to make sure the padmount switchgear is disconnected from the power system while preliminary tests are being conducted. If disconnecting means are not available, line leads should be disconnected.

What is the minimum clearance for a switchgear?

Minimum clearance in rear is 30.00 inches. If rear doors are supplied, the minimum clearance is the width of the widest vertical section equipped with a rear door plus 1.00 inch. Local jurisdictions may require a larger clearance. Finished foundation under the switchgear must be flat, level and in true plane.