| Prod Model: |
LW10B-252 |
| Breaking Capacity: |
High Voltage Circuit Breakers |
| Operation: |
Energy-storage Type |
| Speed: |
High-Speed Circuit Breaker |
| Arc-extinguishing Medium: |
SF6 |
| Installation: |
Fixed |
| Structure: |
ELCB |
| Poles Number: |
1 |
| Certification: |
CCC |
Product Description
1. High technical dataLW10B-252Kv SF6 circuit breakers own big breaking capacity and good insulation. The interrupter, designed
with advanced technology, can break 50kA short circuit current 26 times continuously without
maintenance.
2. Module design in operating systemValve system of the hydraulic mechanism adapts module integration design with a small volume, which
not only remains such characteristics of hydraulic mechanism as quick action, stable performance, low
noise and no wearing etc., but also effectively prevents oil leakage.
3. Interchangeable ability of components and spare partsMain body of circuit breaker is directly erected on the top of hydraulic mechanism, and the interrupter is
standardised, so components and spare parts of the same rating and construction inside interrupter are
strictly interchangeable.
Main parameter:| 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 |
Our companySHANGHAI POWERY INDUSTRIES CO., LTD. ( SPI ) corporate group has been dealing with the interfaces in the flow of electricity ever since it was founded back in 2011. SPI's three groups - Pole Line Hardware( Tsingtao, China ),High Voltage Line Protection(Lishui, China ), Distribution Transformers( Shinseong, Korea ) - offer a unique set of brands and products. As a specialist in energy transmission and distribution, we offer our customers and business partners a range of sophisticated, future-ready products: For all voltage ranges and wherever reliable, long-lasting systems are needed for powerful energy grids. We are already well-established in all key global markets and are continuing to strengthen our brand on a worldwide scale.SPI has identified key factors that will be instrumental to its sustainabilit.
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.
