Air Load Switch

NegotiableUpdate on October 06

Model

Nature of the Manufacturer: Other

Product Category: Indoor Load Break Switch

Place of Origin: City, Province

Online Consult Contact Information

Overview

FNR12-12 series high voltage AC Vacuum load switch is applied in the three-phase, AC50Hz, rated voltage up to 12KV electric supplying network. The load switch and combination equipments own obvious isolation fractures, can match earthing switch of CO capacity and electric spring mechanism.

Product Details

Introduction

FNR12-12 load switch and combination electric appliance are suitable for load control and short-circuit protection,using in urban power station and industrial electric appliance supply by tri-phase ring network or terminal.For the protection of combined electric appliance on electrical appliance equipment is more reliable,economical than circuit breaker electrical appliance equipment such as the transformer,especially is for the ring net,double radiation power supply unit and box type transformer substation.

Main technical parameter

Item	Unit	FNR12-12
Rated voltage	kV	12
Rated frequency	Hz	50
Rated current	A	630
1 min power frequency withstａnd voltage	kV	Phase to phase,to earth 42;isolating fracture 48
Lightning impulse withstａnd voltage	kV	Phase to phase,to earth 75;isolating fracture 85
Rated thermal stability current	kA	20(4s)
Rated dynamic stability current	kA	50
Rated making current(peak)	kA	50
Max,breaking current	kA	1.8
Breaking no-load transformer capacity	kVA	1250
Rated cable charged current	A	10
Breaking times of rated power load current	times	6000
Thermal stability current of earth switch	kA	20(2s)
Dynamic stability current of earth switch(peak)	kA	50
Power voltage of motor operation	V	AC/DC 220

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