Quick Details
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
|
Shanghai Powery Industries Co., Ltd. Located in Shanghai China, our factory located in the beautiful seaside city--Qingdao, covering more than 10000sqm, with the workshop covering an area of 5000sqm, is a advanced management company, which is about 15 minutes' drive away from the Qingdao airport and about half-hour's drive away from the port.
We are engaged in the design, manufacture and marketing services of rigging, vessel and container fittings, electric power fittings, and high and low voltage transmission and distribution line fittings. We have been equipped all kinds of forging machines, casting machines, punching machines, lathes and drilling machines. "Quality and Service" is our top belief. Our products have been exported to Asia, America and Africa for many years. Most of our friends and customers are satisfied with our quality and services, on the basis of which, long-term friendships have been established.
Being ISO9001: 2008 certified and with permits for all products, we produce all products according to relative International Standards and customers' requirements.
You and your esteemed company are welcomed to visit us. Our best services, famous Qingdao beach sightseeing and delicious seafood are waiting for your presence.
