Hitachi Relion 670 Series Applications Manual page 355

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Table of Contents

1MRK506375-UEN Rev. N

Instantaneous samples

Peak value(SMAI o/p)

RMS value(SMAI o/p)

IEC21000241 V1 EN-US

Maximum peak and RMS current calculation

Setting guidelines

The setting parameters for fault current and voltage reporting function FLTMMXU can be set via

Protection and Control Manager PCM600.

Operation: To disable/enable the operation of fault current and voltage reporting function, that is,

PreTrig: To set the number of power system cycles to be considered for fault event data window prior

to positive edge of the binary input TRIGFLTUI.

PostTrig: To set the number of power system cycles to be considered for fault event data window

after the positive edge of binary input TRIGFLTUI.

Railway application RER670

Application manual

Time duration for maximum peak and

RMS current calculation

GUID-0A8DF112-1058-4B1C-BEB2-AAD055D99646 v2

Relion rer670