ZW32-12/M630-20 pillar type outdoor 12kv vacuum circuit breaker

ZW32-12 series pillar type outdoor vacuum high-voltage circuit breaker is a kind of outdoor high-voltage switch equipment of three phase frequency 50HZ,rated voltage 12kv.It is used in opening and closing the load current, overload current and short circuit current of the power distribution network of the whole city or the village.

Product Details Company Profile

Description

Place of Origin: Zhejiang, China (Mainland)
Brand Name: Tengen
Model Number: ZW32-12/M630-20
Type: High Voltage
Poles Number: 3
Rated voltage: 12KV
Rated current: 630/1250A
Frequency: AC50Hz
Power frequency withstand voltage: 42/48KV
Altitude: ≤2000
Electrical life: 10000times
Function: overload,short circuit protection
Standard: GB1984-2003,IEC62271-100,GB/T11022-1999,DL/T402-2007,GB/T311.2-2002
Rated operation voltage: 110V/220V
Temperature: -40~45℃

Introduction

ZW32-12 series pillar type outdoor vacuum high-voltage circuit breaker is a kind of outdoor high-voltage switch equipment of three phase frequency 50HZ,rated voltage 12kv.It is used in opening and closing the load current, overload current and short circuit current of the power distribution network of the whole city or the village.

Normal Service Conditions

a. ambient air temperature , upper limit +40, lower limit-40

b. elevation,≤1000mIf there is any need to increase the elevation,, the rated insulation level should be increased properly

c. wind pressure, less than 700pa(the same as 34m/s wind speed)

d. Amplitude, The earthquake intensity does not exceed 8 degrees

e. pollution level, level 3

f. daily range of temperature ,less than 25

The main technical parameter

Item		Unit	Parameter
			12.5KA	16KA		20KA
Rated voltage		KV	12
Rated current		A	400		630	630
Rated short open current		KA	12.5		16	20
Rated short making current(peak)			31.5		40	50
Rated peak withstand current			31.5		40	50
Rated short withstand current			12.5		16	20
Rated short duration		s	4
Rated isolation level	thunder impulse withstand voltage (peak )	KV	Alternated to earth75 fracture85
	1min power frequency withstand voltage		Alternated to earth 42 fracture85
Rated operating sequence			close-0.3s- open and close-180s- open and close electromotion agency
Operations of short-circuit making current breaking current interruption			30
Mechanical life			10000
Rated operating voltage(open and close coil)		v	DC220 110 AC220 110
Contact erosion permission length		mm	3
Rated current of over-current trip		A	5
Current ratio of mutual inductor			200/5 400/5 600/5
Rated contact stroke		mm	9±1
			2±0.5
Average opening speed		m/s	1.2±0.3
Average closing speed			0.6±0.2