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Protection

RED 670 is not available in any panel

P545 is schnider make model no.- 545

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Loic !or "

$hen !eed

%

&

'

4

5

6

7

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#torecloser

er in normal

$hen (ain & "R in service )check !or internal "R initiation internally

*heck "R +ith e,ternal inp#t

*heck !or (#ltiphase % !a#lt "R locko#t and 6")/ operation

! (ain */ is not healthy then "R shall be blocked and 6")6/ operation shall be per!ormed

*heck !or "R locko#t condition reset

n case o! breaker not ready prepare 'ph trip inp#t ro relays !rom main and 1E /*2 shall be +i

3o+ %ph L// to /* breaker +ill start +hen !eeder is on trans!er and %phase "R starts )beca#se

nce a#toreoser has started i! there is &nd initiation )"R locko#t sho#ld happen

! D#rin recloser period i! "R healthy sta#s removed then +hether "R cycle +ill be per!ormed

check !or 6")6/ operation o! /* relays only +hen !eeder is on trans!er

n case o! carrier !ail relay operation shall be shi!ted to distance !#nction

 

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P545 re#ires brekaer open and close stat#s !or per!ormin "R)3eremain /* breaker sinals are taken thro#h oose.

 1o consider /* breaker sinals)!eeder on trans!er inp#t +ill be re#iredmay be via oose)

8o +hen relay receives trip commandinternally or e,ternally )andsim#ltaneo#sly breaker pole is open then only sinle ph action +ill beper!ormed

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%

&

%&

'

4

%

&'

'

4

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9ollo+in Points are to be taken care be!ore 9"1

*on:#ration o! RED 670 relay !or protection !#nctions)"#torecloser !#nction and a#torecloser

;oose comm#nication bet+een RED670 and P545 !or (ain and 1/* breaker stat#s

D#rin 9"1

/( checkin +irin veri:cation as per scheme dra+ins

e#ipment loics checkinapart !rom oose sinals re#ired !rom other bays

ED protection !#nction testin

"ctivities to be carriedo#t d#rin commissioinin at site

Establishment o! E*6%50 comm#nication o! 8chnider panel ED8 +ith ;E s#bstations ED8

Recon:#ration o! e#ipmnet interlockin

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  e#irement

r sim#lations