GB/T 32580.1-2016
GB/T 32580.1-2016 Railway applications—Fixed installations—Particular requirements for a.c. switchgear—Part1:Single-phase circuit-breakers with Un above 1 kV
Abstract
This part of GB/T 32580 is applicable to single-phase AC circuit breakers used in electrified railways with a nominal voltage of 25 kV, 2×25 kV, and 50 kV, which are fixedly installed indoors or outdoors and operate at a frequency of 50 Hz. The connection method of the bipolar circuit breakers applicable to this part is limited to: one pole is connected to the contact line on the line, and the other pole is connected to the positive feeder line, which is laid along the same track and connected to an autotransformer at a certain distance to increase the line voltage. The neutral point of the entire circuit is directly grounded. This part is also applicable to the operating mechanisms and auxiliary equipment of circuit breakers. Circuit breakers whose closing mechanisms are operated solely by manual effort are not within the scope of this part.
General Product Information
| Document Type | National standards |
|---|---|
| Standard Status | Replaced |
| Standard Code | GB/T 32580.1-2016 |
| CCS | Traction substation |
| ICS | Electric traction equipment |
| Implement Date | 2016-11-01 |