Product Details

ZW8-12 Series Outdoor High Voltage Vacuum Circuit Breaker

Name: 12KV 630A Outdoor Vacuum Circuit Breaker
Brand: hossin
Availability: InStock

Product Overviews

ZW8-12 series outdoor high-voltage vacuum circuit breaker is a kind of three-phase outdoor high-voltage switchgear of rated voltage 12kV and AC 50Hz,mainly used for making and breaking the load current, overload current and short-circuit current in power systems. It is applicable to transformer substation, industrial and mining enterprises as well as urban and rural power grid systems for protection and control. Its population structure is three-phase together box type. Three-phase vacuum arc-extinguish chamber palaces in a metal cabinet,using the SMC insulating material to insulate inter-phase and phase to earth, which is reliable in performance and high in insulating intensity.

ZW8-12G is combined with ZW8-12 circuit breaker and isolating sword, called combination circuit breaker and used as a section switch.

Operator of the series is CT23 type spring energy-storage operator, divided into electric kind and manual type.

Working Conditions

1. Altitude: ≤1000mm;
2. Ambient air temperature: -35℃ ~+40℃ ;
3. Wind speed: ≤34m/s;
4. Earthquake intensity:8 degree;
5. Relative humidity: monthly average ≤90%, daily average ≤95%;
6. Ice thickness: 10mm ;
7. Pollution degree: IV;
8. There will be have dew under the condition of high temperature low down hastily.

Product Feature of ZW8-12 Outdoor Vacuum Circuit Breaker:
1. Vacuum arc extinguish.
2. Silicon rubber and plastic composite insulation.
3. It can be matched with controller as auto-recloser and auto-sectionalizer.

Specification

ain Technical Parameter

Item			Unit	Parameter
Rated Voltage			kV	12
Rated Current			A	630
Rated Short-circuit Breaking Current			kA	6.3	12.5	20
Rated Short-circuit Making Current (Peak)			kA	16	31.5		50
Rated Peak Withstand Current			kA	16	31.5		50
Rated Short-time Withstand Current			kA	6.3	12.5		20
Rated Insulation Level	1min Power Frequency Withstand Voltage (Dry Test)		kV	42
	Lightning Impulse Withstand Voltage (Peak)		kV	75
Rated Operating Sequence				O-0.3s-C O-180s-CO
Mechanical Life			times	10000
Rated Short-circuit Current Breaking Times			times	30
Rated Closing Voltage of Operator			V	110, 220
Rated Opening Voltage of Operator			V	110, 220
Clearance Between Open Contacts			mm	11±1
Over travel of Contacts			mm	3
Three-phase Opening/Closing Synchronization			ms	≤2
Closing Bouncing Time			ms	≤2
Average Opening Speed			m/s	1.0±0.2
Average Closing Speed			m/s	0.7±0.15
Opening Time		Highest Operating Voltage	s	0.015~0.05
		Lowest Operating Voltage	s	0.03~0.06
Closing Time			s	0.025~0.05
Main Loop Resistance of Each Phase			μΩ	≤120
Total Thickness of Permissible Wear of Moving and Static Contacts			mm	3

Outline Drawing

Advantages

1.Over 20 years of manufacturing experience with good quality & stable product performance.

2. Hossin provides full line of MV-HV electrical products, including drop-out fuse, disconnector, surge arrester, vacuum circuit breaker, fuse, load switch, insulator etc.

3. Quick feedback, Timely quotation, Fast delivery

4. Complete set of testing machine to ensure product quality.

5. Hossin can customize non-standard product as per client’s requirement.

6. Hossin sells pressing parts& pressing mould at low price.

7. Hossin offers electrical installation & commission service.