Technical description
Table of Contents
VM265.EN011
VAMP 24h support phone +358 (0)20 753 3264
41
Auxiliary voltage ............................................................ 186
Serial communication connectors ............................. 186
Front panel connector ......................................... 186
Rear panel connector X5 (REMOTE) .................. 187
X4 rear panel connector (local RS232 and
extension RS485 ports) ..................................................... 192
Optional two channel arc protection card.............. 192
Optional digital I/O card (DI19/DI20) ......................... 193
External I/O extension modules .................................. 194
External LED module VAM 16D ........................... 194
External input / output module .......................... 194
Block diagrams .............................................................. 200
Block diagrams of option modules ............................ 201
Optional arc protection ...................................... 201
Optional DI19/DI20 ............................................... 201
Connection examples .................................................. 202
Technical data ................................................................... 203
Connections................................................................... 203
Measuring circuitry ............................................... 203
Auxiliary voltage ................................................... 203
Digital inputs .......................................................... 204
Trip contacts .......................................................... 204
Alarm contacts ..................................................... 204
Local serial communication port ....................... 204
Remote control connection ............................... 205
Arc protection interface (option) ...................... 205
Tests and environmental conditions .......................... 205
Disturbance tests .................................................. 205
Test voltages .......................................................... 206
Mechanical tests .................................................. 206
Environmental conditions .................................... 206
Casing .................................................................... 206
Package................................................................. 206
Protection functions ...................................................... 207
Differential protection .......................................... 207
Non-directional current protection ................... 208
Second harmonic function ................................. 210
Circuit-breaker failure protection ...................... 210
Arc fault protection stages (option) .................. 211
Supporting functions ..................................................... 212
Disturbance recorder (DR) .................................. 212
Abbreviations and symbols .............................................. 213
Construction ....................................................................... 214
Order information ............................................................... 215
Revision history ................................................................... 216
Reference information ....................................................... 218
Содержание 265
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