24kV MV Outdoor Vacuum Circuit Breaker/VCB Switch on Pole, ZW32-24kV

EXZW32-24kV

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FOB

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1 piece

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1. General description
EXZW32-24 type outdoor H.V. vacuum circuit breaker is outdoor distribution equipment with rated voltage of 24kV, tri-phase AC 50Hz. It is mainly used to break and close load current, overload current and short-circuit current of power system. Applicable to substations and power distribution in industrial and mining enterprises for protection and control purposes, especially for frequent operation places with reliable insulation, and long-life maintenance free for rural power.
It is more suitable for installing and using to overhaul and maintain rural electric power.

2. Main technical parameter

Item	Unit	Data
Rated voltage	kV	24
Rated frequency	Hz	50
Rated current	A	630
Rated short-circuit breaking current	kA	25
Rated peak value withstand current (peak)	kA	63
Rated short-time withstand current	kA	25
Rated short-circuit making current (peak)	kA	63
Rated operating sequence		O-0.3s-CO-180s-CO
Rated short circuit duration	s	4
Mechanical life	time	10000
Rated current breaking times	time	10000
Rated short circuit breaking times	time	30
Power frequency withstand voltages (wet)(dry) inter-phase, earth, fracture	kV	65/79
Lightning impulse withstand voltage (peak) inter-phase, earth, fracture	kV	125/145
Secondary circuit 1min P.F.withstand voltage	V	2000
Energy-stored time under rated voltage	s	<10
Rated current of over current release coil	A	5
Rated voltage of O/C coil	V	DC220
Rated voltage of O/C coil	V	AC220

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