ZW8-12/ Series Outdoor HV Vacuum Automatic Circuit Reclosers, are used for switching on/off load current, overload current and short circuit current in three-phase power systems with AC 50Hz and rated voltage 10~12kV. Matching with recloser controllers, the breaker can identify current characteristics and realize repetitious auto-closing or permanent fault isolation. With its own PT power.
Item | Unit | Parameters | ||
Rated voltage | KV | 12 | ||
Rated insulation level | Power frequency withstand voltage | Dry | 42 | |
Wet | 34 | |||
Lightning impulse withstand voltage (Peak value) | 75 | |||
Rated current | A | 630;400;200 | ||
Rated short circuit-breaking current | KA | 20;16;12.5 | ||
Rated operating sequence | O-0.3s-CO-180s-CO | |||
Breaking current frequency underrated short circuit | Times | 30 | ||
Rated short current switching current (Peak value) | KA | 50 | ||
Rated peak value withstands current | KA | |||
Rated short-time withstand current | KA | 20;16;12.5 | ||
Rated short circuit duration time | S | 4 |
The ZW8-12/C outdoor HV vacuum breaker has all functions of the basic mode breaker. Matching with the reclosing controller, it becomes a recloser intelligence breaker. The basic mode breaker can match with a reclosing controller and PT reclosing controller, having three segment compound protection of switch on rush current control, over current protection and short quick break. And it has 1~3 times reclosing, low current ground protection, and wired supervisory control functions. It can also remote control under the pole, and regulate the parameters of the breaker.
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