ABB Relion 670 Series Applications Manual page 267

Hide thumbs Also See for Relion 670 Series:

Table of Contents

1MRK 505 370-UUS Rev. K

DelSt>: This setting is used to set the start value for delta detection.

DeltaT: This setting defines the number of execution cycles of old data to be used for delta calculation.

That is, if DeltaT setting is set as 6 for a 3 ms function, an 18 ms old value will be used to compare the

change against.

tHold: This setting defines the pulse length for the start signal. A typical value of this setting is 100 ms.

Busbar protection REB670

Application manual

Secondary system supervision

Relion reb670