Zw32-12 Series Vcb Vacuum Circuit Breaker High Middle Voltage

Model NO.: ZW32-12
Poles Number: 3
Type: Circuit Breaker
Function: Conventional Circuit Breaker
Certification: ISO9001-2000, ISO14001
Material: Stainless Steel
Rated Current: 630A
Rated Voltage: 12V
Customized: Available
Weight: 120kg
Trademark: Shentong
Transport Package: in Wooden Case
Specification: 12KV
Origin: Yueqing City
HS Code: 8535210000
Advantages:
                           1.Our Company Has Great Reputation In Domestic Market.
                           2.Good Quality Guaranteed With Reasonable Price.
                           3.OEM, ODM Are Welcomed.
                           4.Goods Will Be Delivered On Time.
                           5.Factory Selling Directly

Description:
ZW32-12 type outdoor high voltage vacuum circuit breaker is three-phase AC,50(60) Hz outdoor power distribution equipment with the rated voltage of 12kV.It is mainly used to break and close the load current,and short circuit current in the electric power system.It fits to be used to protect and control the circuit in substation,mining and industrial enterprises.It also can be used in the frequently operation places such as the rural power network. The product is accordance with GB1984-2003 standard.
The ZW32-12G VCB Isolating switch combination consists of Vacuum circuit breaker body and isolating switch.

Applying ambient conditions
1.Ambient temperature:-10ºC~+40ºC.
2.The height above sea level:≤1000m(besides the special requirements).
3.Relative humidity:the average humidity of a day should be no more than 95%;the average humidity of a month should be no more than 90%.
4.Saturated vapour pressure:the average pressure of a day should be no more than 2.2kPa;the average pressure of a month should be no more than 1.8kPa.
5.Earthquake intensity:not exceed 8 degrees.
6.It should be installed in the places without fire,explosion,serious filth,chemical erosion and violent vibration.

Parameters
No. Description Unit Data
1 Rated voltage kV 12
2 Rated insulation levels Rated power frequency withstand voltage/1min
( phase to phase, phase to earth, open contacts)		  
kV		 42
Rated lighting impulse withstand voltage
(phase to phase, phase to earth, open contacts)		 75
3 Rated frequency Hz 50 
4 Rated current  
 
A		 630 630 1250 1600
1250 1250 1600 2000
    2000 2500
    2500 3150
      4000
5 Rated short circuit breaking current kA 20 25 31.5 40
6 Rated short time withstand current(4s) kA 20 25 31.5 40
7 Rated short circuit making current kA 50 63 80 100
8 Rated peak value of withstand current kA 50 63 80 100
9 Rated operating sequence   O-0.3s-CO-180s-CO
O-180s-CO-180s-CO
10 Rated short circuit breaking current breaking times times 30/20(40kA)
11 Rated cable charge breaking current A 25
12 Rated single capacitor bank breaking current A 630/400(40kA)
13 Rated back to back capacitor bank breaking current   400
14 Mechanical life times 10000
16 Allowed abrade cumulative thickness of moving and static contactor mm 3
17 Clearance between open contacts mm 11±1
18 Contact stroke mm 3.5±0.5
19 Bounce duration of contact closing ms ≤2
20 Non-simultaneity of three phase for opening and closing ms ≤2


Zw32-12 Series Vcb Vacuum Circuit Breaker High Middle Voltage

Zw32-12 Series Vcb Vacuum Circuit Breaker High Middle Voltage
Zw32-12 Series Vcb Vacuum Circuit Breaker High Middle Voltage
Zw32-12 Series Vcb Vacuum Circuit Breaker High Middle Voltage



Zw32-12 Series Vcb Vacuum Circuit Breaker High Middle Voltage
 
NO Item Unit Technical Data
1 Rated voltage KV 12
2 1 min power frequency withstand voltage 42
Lighting impulse withstand voltage(peak value) 75
3 Rated Frequency Hz 50
4 Rated current A 630, 1250, 1600, 2000, 2500, 3150, 4000
5 Rated short time withstand current KA 20, 25, 31.5, 40
6 Rated withstand current(peak) 50, 63, 80, 100
7 Rated short-circuit opening current 20, 25, 31.5, 420
8 Rated short-circuit closing current 50, 63, 80, 100
9 Rated duration of short-circuit S 4
10 Contact's clearance    3.5±0.5
11 Contact's travel    9±1/11±1
12 Average opening speed M/s 1.1±0.2
13 Average closing speed M/s 0.6±0.2
14 Opening time Ms 35-60
15 Closing time Ms 20-45
16 Mechanical life Times 30000
17 Rated operating order    O-0.3S-CO-180S-CO(<40KA)
O-180S-CO-180S-CO(≥40KA)

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1.27mm Pitch

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1.27mm Pitch

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