View
223
Download
0
Category
Preview:
Citation preview
7/23/2019 GCB - Earthing Switch Retrofit
http://slidepdf.com/reader/full/gcb-earthing-switch-retrofit 1/8
© ABB GroupJanuary 12, 2016 | Slide 1
Earthing Switch Retroit !it or "G#$% & "E# %''6
ABB "igh #urrent Sy(te)( Ser*ice(
GCB Service
7/23/2019 GCB - Earthing Switch Retrofit
http://slidepdf.com/reader/full/gcb-earthing-switch-retrofit 2/8
© ABB GroupJanuary 12, 2016 | Slide 2
"G# % Sy(te)Earthing Switch Retroit !it "G#$% & "E# %''6
+anuactured ro) 1- . 2010
in /urich, Switerland
ptional earthing (witch wa(
pro*ided on either or on oth
(ide(
3ran(or)er (ide 4%5
Generator (ide 45
7/23/2019 GCB - Earthing Switch Retrofit
http://slidepdf.com/reader/full/gcb-earthing-switch-retrofit 3/8
© ABB GroupJanuary 12, 2016 | Slide %
7hy Earthing Switch Retroit !it8Earthing Switch Retroit !it "G#$% & "E# %''6
#hallenge
9 earthing (witch wa( not
e:uipped during actory
a((e)ly, new enclo(ure( would
e nece((ary to (upply in order to
retroit
Solution 3o pro*ide ea(y earthing (witch ;
grounding (witch retroit (olution
<ecti*e
9ncrea(e (aety during
)aintenance within the ==
Si)pliy )aintenance procedure(
within the ==
HGC 3
breakers
ordered w/o
earthing
switch do
not have an
assembly jig
7/23/2019 GCB - Earthing Switch Retrofit
http://slidepdf.com/reader/full/gcb-earthing-switch-retrofit 4/8
© ABB GroupJanuary 12, 2016 | Slide
Scope o (upplyEarthing Switch Retroit !it "G#$% & "E# %''6
=art( and co)ponent(
Earthing (witch co)plete
Earthing #ontact
Support >?/
#on(ole co)plete
Earthing (witch )otor dri*e
Adaptation( control cuical incl' )i)ic
Earthing switchcomplete
Motor Drive
Openposition
Closeposition
7/23/2019 GCB - Earthing Switch Retrofit
http://slidepdf.com/reader/full/gcb-earthing-switch-retrofit 5/8
© ABB GroupJanuary 12, 2016 | Slide @
Scope o (upplyEarthing Switch Retroit !it "G#$% & "E# %''6
A((e)ly =rocedure
Re)o*al di(connector and arcingcha)er(
7ith alternati*e de*ice,ad<u(t)ent( on enclo(ure incl'rewor
A((e)ly o earthing (witche(incl' linage and )otor dri*e
Rea((e)ly o di(connector andarcing cha)er(
Ad<u(t)ent( and (etting oearthing (witch
7iring o earthing (witch tocontrol cuical
Retroit o control cuical incl')i)ic
+ounting o new rating plate
Re$co))i((ioning incl' unctionalchec(
7/23/2019 GCB - Earthing Switch Retrofit
http://slidepdf.com/reader/full/gcb-earthing-switch-retrofit 6/8
© ABB GroupJanuary 12, 2016 | Slide 6
Scope o (upplyEarthing Switch Retroit !it "G#$% & "E# %''6
=ro<ect Ba(ed 3a((
Ad<u(t)ent( o ei(ting electrical (che)atic
Ad<u(t)ent( o cu(to)er interlocing (y(te)
7/23/2019 GCB - Earthing Switch Retrofit
http://slidepdf.com/reader/full/gcb-earthing-switch-retrofit 7/8
© ABB GroupJanuary 12, 2016 | Slide C
Su))ary ; Beneit(
Ea(y Retroit !it a*ailale or "G# % reaer(, originally
not e:uipped with earthing (witch
En(ure( a (ae )aintenance proce((
#an e eecuted during o*erhaul o the unit
7/23/2019 GCB - Earthing Switch Retrofit
http://slidepdf.com/reader/full/gcb-earthing-switch-retrofit 8/8
© ABB GroupJanuary 12, 2016 | Slide -
Recommended