2.2 Main protection functions
Table 2: Example of quantities
2 = number of basic instances
0-3 = option quantities
3-A03 = optional function included in packages A03 (refer to ordering details)
IEC 61850 or
function name
ANSI Function description Generator
REG670 (Customized)
REG670 (A20)
REG670 (B30)
REG670 (C30)
Differential protection
T2WPDIF 87T Transformer differential protection,
two winding
0-2 1-A31 1-A33 1
T3WPDIF 87T Transformer differential protection,
three winding
0-2 1-A33 1
HZPDIF 87 High impedance differential
protection, single phase
0-6 3-A02 3 6
GENPDIF 87G Generator differential protection 0-2 1 2 2
REFPDIF 87N Restricted earth fault protection, low
impedance
0-3 1-A01 1
Impedance protection
ZMHPDIS 21 Full-scheme distance protection,
mho characteristic
0-4 3 3 3
ZDMRDIR 21D Directional impedance element for
mho characteristic
0-2 1 1 1
ZMFPDIS 21 High speed distance protection,
quad and mho characteristic
0-1
ZMFCPDIS 21 High speed distance protection for
series comp. lines, quad and mho
characteristic
0-1
PSPPPAM 78 Poleslip/out-of-step protection 0-1 1-B22 1-B22 1-B22
OOSPPAM 78 Out-of-step protection 0-1 1-B22 1-B22 1-B22
LEXPDIS 40 Loss of excitation 0-2 1 2 2
ROTIPHIZ 64R Sensitive rotor earth fault protection,
injection based
0-1 1-B31 1-B31 1-B31
STTIPHIZ 64S 100% stator earth fault protection,
injection based
0-1 1-B32 1-B32 1-B32
ZGVPDIS 21 Underimpedance protection for
generators and transformers
0–2 1 1 1
Section 2 1MRK 502 071-UEN -
Application
44 Generator protection REG670 2.2 IEC and Injection equipment REX060, REX061, REX062
Application manual
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