ZW32-24 Outdoor High Voltage Vacum Circuit Breaker

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Product Detail

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General

ZW32-24 outdoor high voltage vacuum circuit breaker (hereinafer referred to as) is suitable for three-phase AC 50Hz, rated voltage 24KV outdoor switchgear. It can be used in various load current and frequent operation occasions. It can be applied in the construction and renovation of power equipment in dfferent places such as urban and rural network, mines, railways and so on.

The product has been successfully developed 24 KV outdoor high voltage switchgear suitable for China’s national conditions developed on the basis of foreign advanced technology and domestic raw materials and processes. Compared with international similar products,it is a kind of intelligent product with miniaturization and maintenance-free.At the same time, the product is environmentally friendly without pollution to the surrounding environment.

The circuit breaker complies with GB1984-2003 “High Voltage AC Circuit Breaker”,DL/T402-2007″High Voltage AC Circuit Breaker Ordering Technical Conditions”, DL/T403-2000″12KV~40.5KV High Voltage Vacuum Circuit Breaker Ordering Technical Conditions” and other technical standards.

Model Meaning

Model:	ZW32-24/T□-□

Z	W	32	24	T	□	□
Vacuum Circuit Breaker	Ouldoor	Design number	Rated voltage (KV)	Spring operating mechanism	Rated current (A)	Rated short circuit breaking current(KA)

Working Condition

●Ambient temperature:-40℃~+40℃.
●Relative humidity: Day average relative humidity≤95%, Month average relative humidity≤90%.
●Altitude: ≤3000mm.
●Wind pressure:Not more than 700Pa(Equivalent to wind speed34m/s)
●Pollution level: Ⅳ(creepage distance≥31mm/KV).
●Icing thickness: ≤10mm.
●Installation site: Should be no fire,explosion hazard,serious pollution, chemical corrosion and severe vibration,etc

Technical specification

No.	Ltem		Unit	Data
1	Rated vdtage		KV	24
2	Rated frequency		Hz	50
3	Rated current		A	630	1250
4	Rated short circuit breaking current		KA	20	25
5	Rated peak withstand current (peak)		KA	50	63
6	Rated short circuit closing current (peak)		KA	50	63
7	Rated short-time withstand current / duration		KA/s	20/4	25/4
8	Rated operating sequence			O-0.3s-CO-180s-CO
9	Mechanical life		Times	10000
10	Rated short-circuit breaking current breaking time		limes	20
11	I minpower frequency withstand voltage	(wet)phase to phase, to earth/Between open contacts		50/65
		(dry)phase to phase, to earth/Between open contacts	KV	65/79
		Secondary circuit		2
12	Lightning impulse withstand voltage(peak)phase to phase、to earth /between open contacts		KA	175/145
13	Weight		kg	115