ATSman
ATSman
- Location
- San Francisco Bay Area
- Occupation
- Electrical Engineer/ Electrical Testing & Controls
Customer called and said his park electrician needed help in closing one of their tower lighting breakers before the 49ers season opening home game on Sunday.
The elec distribution equipment at this park is the original stuff when the park opened in 1960. The quality of the Westinghouse gear built back then was the reason it is still operating today, although components do fail due to age.
The breaker is a 1600A West. DB-50 fixed mount air circuit breaker. The breaker had an intermittent problem in closing from the Honeywell BMS system and eventually it would not close at all. The breaker has an undervoltage device (right side in pic) that is connected to the trip bar and will not allow closing of the breaker if line voltage is not present. In this case the UV device had failed, preventing breaker closing. A tie-wrap was used to hold the device in the operated position thereby allowing the breaker to be closed. Several tests were performed, manual handle, local and remote electrically and the breaker operated without a problem. Needless to say the customer was very happy and asked for a quote to make repairs to the UV device.
I am sure this one can ring a bell with Gar and Zog
see attached pics
pics will come later I am having trouble sending
The elec distribution equipment at this park is the original stuff when the park opened in 1960. The quality of the Westinghouse gear built back then was the reason it is still operating today, although components do fail due to age.
The breaker is a 1600A West. DB-50 fixed mount air circuit breaker. The breaker had an intermittent problem in closing from the Honeywell BMS system and eventually it would not close at all. The breaker has an undervoltage device (right side in pic) that is connected to the trip bar and will not allow closing of the breaker if line voltage is not present. In this case the UV device had failed, preventing breaker closing. A tie-wrap was used to hold the device in the operated position thereby allowing the breaker to be closed. Several tests were performed, manual handle, local and remote electrically and the breaker operated without a problem. Needless to say the customer was very happy and asked for a quote to make repairs to the UV device.
I am sure this one can ring a bell with Gar and Zog
see attached pics
pics will come later I am having trouble sending