ABB Relion REG670, Technical Manual

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Identification................................................................................ 77
Function block............................................................................. 77
Signals.........................................................................................78
Basic part for LED indication module............................................... 78
Identification................................................................................ 78
Function block............................................................................. 79
Signals.........................................................................................79
Settings........................................................................................80
Monitored data.............................................................................80
LCD part for HMI function keys control module................................80
Identification................................................................................ 80
Function block............................................................................. 81
Signals.........................................................................................81
Settings........................................................................................81
Operation principle........................................................................... 82
Local HMI.................................................................................... 82
Display....................................................................................83
LEDs.......................................................................................85
Keypad................................................................................... 86
LED..............................................................................................88
Functionality .......................................................................... 88
Status LEDs........................................................................... 88
Indication LEDs...................................................................... 89
Function keys.............................................................................. 97
Functionality .......................................................................... 97
Operation principle................................................................. 97
Section 6 Differential protection................................................... 101
Transformer differential protection T2WPDIF and T3WPDIF ........ 101
Identification.............................................................................. 101
Functionality ............................................................................. 101
Function block........................................................................... 103
Signals.......................................................................................104
Settings......................................................................................107
Monitored data...........................................................................112
Operation principle.................................................................... 113
Function calculation principles............................................. 114
Logic diagram.......................................................................135
Technical data........................................................................... 140
1Ph High impedance differential protection HZPDIF .....................141
Identification.............................................................................. 141
Functionality.............................................................................. 141
Function block........................................................................... 142
Signals.......................................................................................142
Table of contents
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Technical manual