Hitachi Relion 670 Series Applications Manual page 243

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1MRK506375-UEN Rev. N

double busbar arrangement without transfer busbar or a single busbar arrangement with/without

transfer busbar.

IEC04000478 V1 EN-US

The signals from other bays connected to the module ABC_LINE are described below.

Signals from bypass busbar

To derive the signals:

These signals from each line bay (ABC_LINE) except that of the own bay are needed:

For bay n, these conditions are valid:

Railway application RER670

Application manual

en04000478.vsd

Switchyard layout ABC_LINE

All line disconnectors on bypass WA7 except in the own bay are open.

The switch status of disconnectors on bypass busbar WA7 are valid.

No transmission error from any bay containing disconnectors on bypass busbar WA7

The switch status for QB7 is valid.

No transmission error from the bay that contains the above information.

Relion rer670