3ah3 Vacuum Circuit Breaker Manufacturer – ZW32-12F Outdoor high voltage vacuum circuit breaker (watchdog switch) – Timetric

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3ah3 Vacuum Circuit Breaker Manufacturer – ZW32-12F Outdoor high voltage vacuum circuit breaker (watchdog switch) – Timetric Detail:

General

ZW32-12 Outdoor high voltage vacuum circuit breaker (watchdog switch) is an outdoor high-voltage power distribution switchgear device with rated voltage of 12KV and three-phase AC of 50 Hz. The circuit breaker is mainly used for breaking and closing the load current. The circuit breaker is mainly used for breaking and closing the load current and overload current in the power system. Short-circuit. quick-break. grounding profection, optional reclosing times, local remote control and remote communication functions. suitable for protection and control in substation and industrial and mining enterprises’ distribution systems.When the internal fault of the T-type wiring of the 12Ky line occurs. or although it occurs inside the user’s incoming line switch, but the protection action time limit and the substation outlet switch protection are not proper, the substation outlet switch protection will be opened. If the fault is permanent and the substation coincides unsuccessfully, an accident in the medium voltage user community will power down the entire distribution trunk. Such common incidents in the power grid will cause significant losses to society. ZW32-12 outdoor high voltage vacuum circuit breaker (watchdog switch) (hereinafter called circuit breaker is installed in the responsibility boundary of the overhead line, that is the front section of the user incoming line. The single-phase ground fault and the phase-to-phase short-circuit fault in the user will be automatically cut off to avoid the fault in the user boundary and the power transmission trunk and ensure the safety of power users of faulty users and improve the reliability of power consumption.

Model Meaning

Model:	ZW32-12F

Z	W	32	12	F
Vacuum Circuit Breaker	Ouldoor	Design number	Rated voltage (KV)	Spring operating mechanism

Working Condition

●Ambient air temperature: Max.+40℃,Min.-40℃。
●Altitude: ≤2000m.
●Wind speed:Not more than 34m/s (Equivalent to 700 Paona cylindrical surface).
●Pollution level: Ⅳ.
●No frequent violent vibration, the seismic intensity does not exceed 8 degrees.
●The place should be no fire,explosion hazard, chemical corrosion.

Technical specification

No.	Ltem	Unit	Data
1	Rated voltage	KV	12
2	Rated frequency	Hz	50
3	Rated current	A	630
4	Rated short circuit breaking current	KA	20
5	Rated peak withstand current	KA	50
6	Rated short-circuit withstand current	KA	20
7	Rated short circuit closing current(peak)	KA	50
8	Mechanical life	Times	10000
9	Rated short-circuil breaking current breaking times	Times	30
10	Power frequency withstand voltage (1 min)： (wet) (dry) phase to phase, to earth/Between open contacts	KV	42/48
11	Lightning impulse withstand voltage (peak) phase Io phase、to earth/ Between open contacts	KV	75/85
12	Secondary circuit Imin power frequency withstand voltage	KV	2

Outline overall and installing dimensions

1. Operation handle	8. Insulator
2. Isolate the spindle	9. The isolation
3. Manual split and close handle of circuit breaker	10. Insulation pull rod
4. Circuit breaker energy storage handle	11. Wiring board (incoming end)
5. Divide and combine instructions	12. Isolate the blade
6. Wiring plug	13.Wiring board (outgoing end)
7.Current transformer	14. The circuit breaker

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