Requirements For High Voltage Vacuum Circuit Breakers In High Voltage Electrical Equipment Construction

High Voltage Vacuum Circuit Breaker Inspection requirements after arriving at the site

1. The components and spare parts of the high-voltage vacuum circuit breaker should be complete, without rust or mechanical damage.

2. The arc extinguishing chamber, porcelain sleeve and iron parts should be firmly bonded, without cracks and damage.

3. The packaging should be intact before unpacking.

4. The insulating parts should not be deformed or damp.

5. The bracket welding of the circuit breaker should be good, and the external paint should be intact.

Storage requirements for high-voltage vacuum circuit breakers

1. If the high-voltage vacuum circuit breaker is stored for a long time, it should be inspected every 6 months. A layer of anti-rust grease should be applied on the surface of metal parts and conductive contact surfaces, and the insulating parts should be wrapped with clean oil paper.

2. The vacuum degree of the arc extinguishing chamber should be tested after unpacking.

3. The circuit breaker shall not be inverted when stored, and shall not be placed overlapping when unpacking.

4. The circuit breaker should be stored in a ventilated, dry room without corrosive gas.

Installation and adjustment requirements for high-voltage vacuum circuit breakers

1. After installation, manual opening and closing operations should be performed slowly. Electric opening and closing operations can be performed only when there are no adverse phenomena.

2. The crank arms of the three-phase linkage connecting rod should be on the same horizontal plane, and the crank arm angles should be consistent.

3. The stroke, compression stroke and three-phase synchronization of high-voltage vacuum circuit breakers should comply with the technical regulations of the product.

4. The installation should be vertical, the fixation should be firm, and the phase-to-phase support porcelain parts should be on the same horizontal plane.