IEC 61850 or
Function name
ANSI Function description Transformer
RET650
RET650 (A01)
2W/1CB
RET650 (A05)
3W/1CB
RET650 (A07)
OLTC
CCRBRF 50BF Breaker failure protection, 3–phase activation and
output
0–3 2 3
CCRPLD 52PD Pole discordance protection 0–3 2 3
GUPPDUP 37 Directional underpower protection 0–2 1 1 2
GOPPDOP 32 Directional overpower protection 0–2 1 1 2
DNSPTOC 46 Negative sequence based overcurrent function 0–2 1 2
Voltage protection
UV2PTUV 27 Two step undervoltage protection 0–2 1 1 2
OV2PTOV 59 Two step overvoltage protection 0–2 1 1 2
ROV2PTOV 59N Two step residual overvoltage protection 0–2 1 1 2
OEXPVPH 24 Overexcitation protection 0–1 1 1
Frequency protection
SAPTUF 81 Underfrequency function 0–4 4 4 4
SAPTOF 81 Overfrequency function 0–4 4 4 4
SAPFRC 81 Rate-of-change frequency protection 0–4 2 2 4
2.3 Control and monitoring functions
IEC 61850 or Function
name
ANSI Function description Transformer
RET650
RET650 (A01)
2W/1CB
RET650 (A05)
3W/1CB
RET650 (A07)
OLTC
Control
TR8ATCC 90 Automatic voltage control for tap changer,
parallel control
0–2 1 1 2
TCMYLTC 84 Tap changer control and supervision, 6 binary
inputs
0–2 1 1 2
SLGGIO Logic Rotating Switch for function selection
and LHMI presentation
15 15 15 15
VSGGIO Selector mini switch 20 20 20 20
DPGGIO IEC 61850 generic communication I/O
functions double point
16 16 16 16
SPC8GGIO Single point generic control 8 signals 5 5 5 5
AUTOBITS AutomationBits, command function for
DNP3.0
3 3 3 3
I103CMD Function commands for IEC60870-5-103 1 1 1 1
Table continues on next page
Section 2 1MRK 504 135-UEN A
Available functions
36
Technical manual