Zw20-12 Outdoor High Voltage Vacuum Circuit Breaker Sf6 Gas Insulation Load Break Switch

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Electric Type
• Speed: Normal Type Circuit Breaker
• Arc-extinguishing Medium: SF6
• Installation: Fixed
• Structure: Load Break Switch
• Model NO.: ZW20
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Transport Package: Standard Export Package
• Trademark: Honle
• Origin: Zhejiang, China
• Production Capacity: 5000PCS/Month

Product Description

 

Description:

ZW20-12 outdoor high voltage vacuum circuit breaker for a period of 12KV, rated voltage of the three-phase AC 50HZ outdoor distribution equipment. It adopts vacuum arcing and SF6 gas as insulating medium is ZW20-12 column type vacuum circuit breaker on the modified products.
The product suitable for substation industrial and mining establishment's rural power network and occasions with frequent operation to protect and control. ZW20A outdoor AC high voltage vacuum circuit breaker is mainly used to break and close load current, over-load current and short-circuit current in outdoor 36kv three-phase alternating current 50Hz power system, also suitable for occasion with frequent operations.

Service environment:
 

1.Altitude: ≤3000 Meters
2.Enviroment temperature: outdoor -40ºC ~ +40ºC the daily temperature difference is 25ºC
3.Wind speed: ≤35m/s
4. Location is without inflammable substances, explosives, rusty chemicals and strenuous vibration
 

NO.	Item	Unit	Value
01	Rated voltage	kV	12
02	Rated frequency	Hz	50
03	Rated current	A	630
04	Rated short-circuit breaking current	kA	20
05	Withstand current of rated peak current	kA	50
06	Rated short time withstand current(4s)	kA	20
07	Rated short open/close current(peak)	kA	50
08	Mechanical life	times	10000
09	Open/close times of rated current	times	10000
10	Open/close times of rated short-circuit breaking current	times	30
11	Power frequency with stand voltage (1min):between phases, ground/fracture	kV	42/49
12	lightning impulse withstand voltage(peak)between phases, ground/fracture	kV	75/85
13	2^nd circuit 1min power frequency withstand voltage	kV	2
14	Net weight	kg	140