WHB-898 is an advanced backup power automatic switch device designed for automatically switching section (bus-tie or bridge) switches for voltage classes up to 35kV. It features bus tie protection functions and can be directly installed in high voltage switch cabinets or combined panels.
WHB-898 backup power automatic switch device is a backup power automatic switch device with perfect and advanced functions, which mainly applied to automatic switch section (bus tie or bridge) switch of 35kV voltage class and below. The device is equipped with bus tie protection functions and can be directly installed in the high voltage switch cabinet or combined panel.
Function Classification | No. | Function name |
Protection function | 1 | Section (bridge) switch auto-switching |
2 | Three-section overcurrent protection | |
3 | Overcurrent accelerating protection | |
4 | Zero-sequence overcurrent protection | |
5 | Zero-sequence overcurrent accelerating protection | |
6 | Overload cutoff protection | |
7 | Bus voltage transformer line-break detection | |
8 | Switch open position abnormal detection | |
9 | Section switch control loop abnormal detection | |
10 | Section switch handcart position abnormal detection | |
11 | Section switch spring unstored energy alarm | |
Measure and Control Function | 1 | Remote signaling binary input acquisition, device remote signaling change, alarm remote signaling |
2 | Remote control tripping and closing circuit breaker | |
3 | Fault wave records | |
4 | Analog telemetering acquisition |