LW10B-252 Hydraulic Energy Storage 252kv Sf6 Circuit Breaker

LW10B column type SF6 circuit breaker is independently developed by our company, including 252kV, 363kV and 550kV products, which are used for making and breaking normal current, fault current and changing over of circuit, so as to realize the control and protection of power system.

Product Details Company Profile

Description

Model NO.: LW10B-252
Operation: Hydraulic Energy Storage
Arc-extinguishing Medium: SF6
Structure: ELCB
Type: Circuit Breaker
Certification: ISO9001-2000, CCC
Transport Package: Exporting Standard Packaging
HS Code: 8535290010

Breaking Capacity: High Voltage Circuit Breakers
Speed: High-Speed Circuit Breaker
Installation: Fixed
Poles Number: 1
Function: Conventional Circuit Breaker, Overcurrent Protection, OVP(Overvoltage Protection)
Trademark: Powery
Origin: China

LW10B column type SF6 circuit breaker is independently developed by our company, including 252kV,
363kV and 550kV products, which are used for making and breaking normal current, fault current and
changing over of circuit, so as to realize the control and protection of power system.
Each pole of LW10B-252 circuit breaker has one break; LW10B-363 and LW10B-550 consists of two breaks,whether including closing resistance or not is up to requirement. For all of these three kinds of products, each pole is equipped with a hydraulic operating mechanism, which can make single pole operation and/or three pole electrically gang operation.

Main Technical Parameters:

Item	Technical Data
Type	LW10B-252
Rated voltage	252kv
Rated frequency	50Hz
Rated current	3150,4000A
Rated short circuit breaking current	40/50 kA
Rated short line fault breaking current	36/45 kA
Rated out of phase breaking current	10/12.5 kA
Rated peak withstand current	100/125 kA
Rated short circuit making current (peak)	100/125 kA
Rated short time withstand current	40/50 kA
Rated duration of short circuit	3 s
Rated line charging breaking current (r.m.s)	160 A
Breaking time of rated short circuit current	20 times
Mechanical endurance	5000/10000 times
Rated SF6 gas pressure at 20ºC	0.4/0.6 Mpa
SF6 gas moisture content (Ex-work)	≤150 PPM
SF6 gas leakage rate (per year)	≤1 %
SF6 gas weight (per pole)	6kg (without closing resistance)/10kg(with closing resistance)
Circuit Breaker weight (per pole)	1600kg (without closing resistance)/1800kg(with closing resistance)
Operating force for opening/closing	76/38 kN
Longitudinal terminal load	2250 N
Horizontal terminal load	1768 N
Vertical terminal load	1250 N