12kv FKN12-12RD series indoor high voltage air blast type load break switch with fuse combination apparatus

Specifications

SPECIFICATION

FKN12A-12D series air-blast load break switch and FKRN12A-12D series air-blast load break switch-fuse combination apparatus are new series switchggear applies to three-phase electric distribution system of rated 12kv,acting as protecting and control apparatus for transformers, cable and overhead wiring.These series are especially applicable in rural, urban teminal substation and prefabricated substations, as well as ring network power supply.

FKN12A-12D series air-blast load break switch can break and make load current and over-current.

FKRN12A-12D series air-blast load break switch can break and make over-current, load current and short-circuit current

This product is features with impact structure, aesthetic appearance reliable interlock and high insulating level. In the spring storage operating mechanism, ON.OFF speed is free from the infuence do not cause descend of insultaing level between phases and phase to earth. The insulating cover clapboard separates electrified part thus boost protection grade of ring main unit. The copper- tungsten contact and main contact brings along reliable conductivity and long life. This product achieves sound fame due to easy maintenance and operations as well as reliable performance. It is in compliance with per IEC62271-105. 

AMBIENT CONDITION

1.      Ambient temperature : -25C--+40C

2.      Elevation ≤1000m

3.      Humidity:daily average humidity≤95%,monthly ≤90%

4.      The earthquake does not exceed degree 8

5.      No fire, explosion, chemical errosion.

6.      Pollution: level2

MODEL IMPLICATION

OVERALL DIMENSION