HV FS6 Outdoor Circuit Breaker Type LW3-12 1.2...

HV SF6 Outdoor Circuit Breaker TYPE LW3-12 I.II

Download PDF

General : LW3-12 I.II SF6 HV outdoor circuit breaker is a new type product that SF6 is taken for insulating and arc extinguishing. The arc-chute consists of a breaker and an operative mechanism, using rotating arc principle. Compared with the 10KV series outdoor breakers, this kind of product has obvious advantages, such as a simple structure, the higher reliability of insulating and arc extinguishing, a lower operative power, and a higher rated parameter, a longer electrical service life, a long maintenance free duration, and so on.

This kind of product can be divided into two types:Type I and Type II. The main difference is that, type I is fitted with a kind of manual energy -storage mechanism operated by spring, mainly used on the pillar, and type II is equipped with motor-driven energy -storage mechanism operated by spring which not only can be operated by hand directly or be controlled remote, but also can do coincide automatically, mainly used in the mini-medium substation for protecting and controlling.

Type designation :
Technical parameter :

Notes for ordering :
a. Type and rated parameter;
b. Quantity;
c. Delivery date;
d. If current transformer is fixed, its current ratio and accurate degree shall be 3 (normal ones are200/5, 400/5 or 400/5, 600/5 ). The other current transformer with different ratio can also be equipped. Usually there is no current transformer for type II, but it is available upon requirement.