Common Settings For All Steps - ABB REB670 Applications Manual

Section 7
Current protection
7.4.3.2
196
tPCrvx, tACrvx, tBCrvx, tCCrvx: Parameters for programmable inverse time
characteristic curve. The time characteristic equation is according to equation 39:
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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 86. The angle is defined positive when the residual current lags the reference
voltage (Vpol = -)
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1MRK 505 337-UUS -
(Equation 40)
Application manual