Lw3 12kv Sf6 Outdoor Circuit Breaker 630A

• 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.: LW3
• Poles Number: 3
• Type: Circuit Breaker
• Function: Conventional Circuit Breaker
• Rated Voltage: 12kv
• Rated Frequency: 50/60Hz
• Rated Current: 630A
• Transport Package: Standard Export Package
• Trademark: Honle
• Origin: Zhejiang, China
• Production Capacity: 5000PCS/Month

Product Description

 

Description:

- Type LW3-12/630-20 column-mounted circuit breakers are suitable for use with a rated voltage of 12kV.
- Rated current 630A, 50/60Hz distribution network off.
- Turning off the load current and overload current in the power system can automatically separate the fault distribution circuit segments.
- Switches with the latest technology of electronic controller, manual operation, electric operation and remote operation.
- The electronic controller is housed in a stainless steel case and can be used in all weather conditions.
- In addition, the box can also be installed with wired and wireless modems, which can achieve remote monitoring and control.
- Simple column installation and arrangement is convenient and fast, reducing the construction cost.

 

Rated parameters		Other technical parameters		Power frequency withstand voltage
The rated voltage	12kV	Internal arc test	20kA/0.1sec	10sec (wet test)	45kV
Rated current	630A	Arc suppression medium	SF6Gas	1min (dry test)	50kV
Rated frequency	50/60Hz	Insulating medium	SF6Gas	1min (dry test)	50kV
Short-time Tolerance Current (RMS)	20kA/4sec	Creep distance (porcelain casing)	550mm
		Creep distance (silicone sleeve)	615mm
		Protection grade	54
Mechanical properties of	<0.1sec	Impact pressure (1.2×50μs)		gas pressure
Closing/opening time	10,000 times	relatively	85kV	rated working pressure(kgf/cm2G,at20ºC)	0.7
Mechanical stability operation	-25(-40)~70ºC	Between the fracture	95kV	Explosion-proof device operating pressure(kgf/cm2G)	4~6
Ambient temperature				minimum operating pressure(kgf/cm2G)	0.05
				Gas leakage rate(cc/sec)	1.1×10-7