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Transcript
Section 3
IED application
1MRK504089-UEN C
QB2OPTR(QB220OTR) (bay 1/sect.B2)
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...
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QB2OPTR(QB220OTR) (bay n/sect.B2)
DCOPTR (B1/B2)
VPQB2TR(VQB220TR) (bay 1/sect.B2)
...
...
...
VPQB2TR(VQB220TR) (bay n/sect.B2)
VPDCTR (B1/B2)
EXDU_BB (bay 1/sect.B2)
...
...
...
EXDU_BB (bay n/sect.B2)
EXDU_DC (B1/B2)
&
BB_DC_OP
&
VP_BB_DC
&
EXDU_BB
en04000509.vsd
IEC04000509 V1 EN
Figure 180:
Signals from any bays in section B2 to a busbar earthing switch in
the same section
For a busbar earthing switch on bypass busbar C, these conditions are valid:
QB7OPTR (bay 1)
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...
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QB7OPTR (bay n)
VPQB7TR (bay 1)
...
...
...
VPQB7TR (bay n)
EXDU_BB (bay 1)
...
...
...
EXDU_BB (bay n)
&
BB_DC_OP
&
VP_BB_DC
&
EXDU_BB
en04000510.vsd
IEC04000510 V1 EN
Figure 181:
Signals from bypass busbar to busbar earthing switch
Signals in double-breaker arrangement
The busbar earthing switch is only allowed to operate if all disconnectors of the bus
section are open.
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Application manual