59
Distance protection (ZM)
Chapter 4
Line distance
The distance protection function blocks are independent of each other for each zone. Each func-
tion block comprises a number of different functional inputs and outputs, which are freely con-
figurable to different external functions, logic gates, timers and binary inputs and outputs. This
makes it possible to influence the operation of the complete measuring zone or only its tripping
function by the operation of fuse-failure function, power swing detection function, etc.
1.3
Function block, zone 1- 3
Figure 17:
ZM1 function block for single, two and/or three phase tripping
Figure 18:
ZM1 function block for three phase tripping
Figure 19:
ZM2 function block for single, two and/or three phase tripping
xx00000173.vsd
ZM1--
ZM1
BLOCK
BLKTR
VTSZ
STCND
TRIP
TRL1
TRL2
TRL3
START
STL1
STL2
STL3
STND
xx00000702.vsd
ZM1--
ZM1
BLOCK
BLKTR
VTSZ
STCND
TRIP
START
STND
xx00000174.vsd
ZM2--
ZM2
BLOCK
BLKTR
VTSZ
STCND
TRIP
TRL1
TRL2
TRL3
START
STL1
STL2
STL3
STND
Summary of Contents for REL 501-C1 2.5
Page 1: ...Technical reference manual Line distance protection terminal REL 501 C1 2 5 ...
Page 2: ......
Page 26: ...14 Introduction to the technical reference manual Chapter 1 Introduction ...
Page 42: ...30 Technical data Chapter 2 General ...
Page 66: ...54 Blocking of signals during test BST Chapter 3 Common functions ...
Page 142: ...130 Time delayed overvoltage protection TOV Chapter 6 Voltage ...
Page 162: ...150 Autorecloser AR Chapter 9 Control ...
Page 174: ...162 Event function EV Chapter 10 Logic ...
Page 210: ...198 Serial communication Chapter 12 Data communication ...
Page 226: ...214 Serial communication modules SCM Chapter 13 Hardware modules ...
Page 230: ...218 Terminal diagrams Chapter 14 Diagrams Figure 87 REL 501 C1 with DC switch ...
Page 234: ...222 Terminal diagrams Chapter 14 Diagrams ...
Page 237: ......