How to Replace VS1 Vacuum Circuit Breaker Tulip Contact

The tulip contacts in the VS1 vacuum circuit breaker are matched with the static contacts of the central cabinet. They are rocked in and out through the chassis of the VS1 vacuum circuit breaker to connect and disconnect with the central cabinet. Long-term use of vacuum circuit breaker tulip contacts also requires maintenance and replacement. Due to the long time, the tulip contacts are oxidized, so that there will be a thick layer of stains on it, which will reduce the conductivity of the vacuum circuit breaker and increase the resistance. In the end, it is conceivable that the tulip contacts and the static contact. Especially high-current vacuum circuit breakers. So how should we replace the tulip contacts?

The following points should be paid attention to when replacing the tulip contacts of the VS1 vacuum circuit breaker?

1. Observe the rated current of the VS1 vacuum circuit breaker.

2. Observe the number of tulip contacts in the VS1 vacuum circuit breaker.

Remove the old tulip contact and install the new plum blossom contact with a tool, (this tool is conical, insert the end of the mold shape into the contact arm, and then put the tulip contact on the tool from the back to the forward). What if there is no tool, if there is no tool, pull back the spring on the tulip contact opposite the contact arm, then press the tulip contact hard to make the other end open, and then push the contact arm into it. Finally reset the spring. This completes the replacement of the tulip contacts.

If the tulip contacts are not oxidized, you only need to clean the tulip contacts when maintaining the vacuum circuit breaker. If you do not know whether the tulip contacts should be replaced, the best way is to use the loop resistance to test. If the resistance is too large, replace it in time.