ZW20-12F/T630-25 High security outdoor automatic sf6 circuit breaker

The product suitable for substation industrial and mining establishments rural power network and occasions with frequent operation to protect and control.

Product Details Company Profile

Description

Place of Origin: Liaoning, China (Mainland)
Brand Name: Dandong Dianli
Model Number: ZW20-12F/T630-25
Type: Vacuum, DL-029
Poles Number: 3
Product Name: sf6 circuit breaker
Material: Polymeride
Application: High Voltage Equipment
Rated Voltage: 12kV
Rated Frequency: 50Hz
Rated current: 630A
Construction: Three-phase
Certificate: IOS9001:2000

Overview:

ZW20A-12 Type of 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 establishments 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 conditions:
1. Ambient Temperature: -40℃ ~ +40℃
2. Altitude: ≤2000m
3. Wind speed: ≤34m/s
4. Earthquake intensity: ≤8
5. Relative humidity: daily≤95％, month≤90％
6. Installation site: Not including inflammable, explosive, chemical corrosion.

Technical parameters:

No.	Item	Unit	Numeric
1	Nominal Voltage	KV	12
2	Rated Frequency	HZ	50
3	Rated Current	A	630
4	Rated Short-circuit Breaking Current	KA	20
5	Dynamic Stability rated current	KA	50
6	RMS/Rated the rmal stabilization	KA/S	20/4
7	Mechanism life	Times	10000
8	Rated short-circuit closing breaking Number	Times	30
9	Rated operating sequence		O-0.3s-CO-180s-CO
10	Rated breaking current number	Tmes	10000
11	Rated short-circuit close-open current	KA	50
12	SF6 rated pressure （20 spend pressure）	MPa	0.01
13	Rated short-circuit closing breaking Number	T	30
14	Rated short-circuit cut-off current's DC component	％dc	51.3
15	Rated insulation level	KV		Short Power-frequency withstand	Thunder shocking
			PE	42/34	75
			PP	42/34	75
			Fracture	48/34	85
			Assist	2