Overview

An arcguppression coil is an arc -extinguishng. hductancecoll wih an ron core.There aremanlytha  knds of products n Chng,which are argap regulatng type.tun   adjustng   tpe   vrlume   raguaing   bpe,high biastype.It isoonnected between the neutralpontof

the   transformer   (or   generator)and   the   earth,

constituting the are suppression coigroundingsystem.

Powersystem transnissionInegrounding through ar

suppression ooi,is a kind of small current groundng

system.In nomal operation,no current passes through

thearc suppression coll.Howewer,whenthe power grid

is struck by ightning or singlo-phaso arg grounding

occurs,the neutralpointpotentialwilise to the phase

wollage,and then the inductwe current flowing through

theare suppression coil andthe capactve fault current

of the single-phase grounding cancel each other,s0

that    the    fault    current    ls    compensated.Afte

compensaton.the rasidual curent becomes too small

to maintan the arc and salf-oxtinguishos.In thisway.

the ground taut can be glminated quickly without

causing owarvoltago.

Principle of action

The tunctionof arc suppressioncol is that whena single-phase groundng fault ocours n the power gid,the talt pont tows trough he capactor curent,

so thatthecurentat the tault poin isroducndio loss than 10A,whichis conduche

to prevertingthereignition of arc lightafer zero crossing.achiesingthepurpose of

are eofinguishing,reducing the probablity of high ampiude overvolage,and

preventing further expansion of the accident.When the arc suppression col is

corectlytuned,i can not onlyeflectinelyreduoe the probabiy of arc grounding

owenolage,butalso eflecivey suppress the ovencllage walue,and also minimize

thethermal damage effect of thefault point and the wollage of the grounding

network.

Features

Electic cantrol steplessoonnection adjustable are suppression col,ful staic  stucturo,no  moving  parts  insido,no  contact.largoadjustmgnt  rango,high relabiy,tast adjustment speed.