General Current And Voltage Protection Cvgapc - ABB Relion 650 Series Technical Manual

1MRK 511 424-UEN B
Section 6
6.1
6.1.1
6.1.2
Bay control REC650 2.2 IEC
Technical manual
Multipurpose protection

General current and voltage protection CVGAPC

Identification
Function description
General current and voltage protection
Functionality
The General current and voltage protection (CVGAPC) can be utilized as a
negative sequence current protection detecting unsymmetrical conditions such as
open phase or unsymmetrical faults.
CVGAPC can also be used to improve phase selection for high resistive earth
faults, outside the distance protection reach, for the transmission line. Three
functions are used, which measures the neutral current and each of the three phase
voltages. This will give an independence from load currents and this phase
selection will be used in conjunction with the detection of the earth fault from the
directional earth fault protection function.
Multipurpose protection
IEC 61850 IEC 60617
identification identification
CVGAPC 2(I>/U<)
Section 6
IP14552-1 v2
M14886-2 v3
ANSI/IEEE C37.2
device number
-
M13083-11 v9
83