Common Settings For All Steps - ABB RELION 670 SERIES Applications Manual

1MRK 506 369-UUS -
9.5.3.2
Line distance protection REL670 2.2 ANSI
Application manual
tPCrvx, tACrvx, tBCrvx, tCCrvx: Parameters for programmable inverse time
characteristic curve. The time characteristic equation is according to equation 460:
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EQUATION1722 V1 EN
Further description can be found in the Technical reference manual (TRM).
tPRCrvx, tTRCrvx, tCRCrvx: Parameters for customer creation of inverse reset time
characteristic curve. Further description can be found in the Technical Reference Manual.

Common settings for all steps

x means step 1, 2, 3 and 4.
AngleRCA: Relay characteristic angle given in degrees. This angle is defined as shown in
figure 263. The angle is defined positive when the residual current lags the reference
voltage (Vpol = -)
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B TD
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Section 9
Current protection
(Equation 467)
527