Bender B93100735, Manual

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Table of Contents
4 PEM735_D00084_02_M_XXEN/06.2020
4.3.2 Front panel mounting ................................................................................... 21
4.4 Connection of the device ............................................................................. 22
4.4.1 Safety instructions........................................................................................... 22
4.4.2 Back-up fuses .................................................................................................... 22
4.4.3 Connection of measuring current transformers .................................. 22
4.5 Connection details .......................................................................................... 22
4.6 Wiring diagram ................................................................................................. 23
4.7 Connection diagram voltage inputs ......................................................... 24
4.7.1 Three-phase 4-wire system (TN, TT, IT system) ..................................... 24
4.7.2 Three-phase 3-wire system .......................................................................... 25
4.7.3 Connection via voltage transformers ....................................................... 26
4.8 Digital inputs ..................................................................................................... 26
4.9 Digital outputs DO1…2 ................................................................................ 27
4.10 Relay outputs RO1…4 ................................................................................... 28
4.11 Modbus TCP (connector pin assignment) .............................................. 28
5. Commissioning and operation ........................................................... 29
5.1 Getting to know the operating elements .............................................. 29
5.2 LED display (Energy pulsing) ....................................................................... 30
5.3 Check proper connection ............................................................................. 30
5.4 Before switching on ........................................................................................ 30
5.5 Switching on ..................................................................................................... 31
5.6 System ................................................................................................................. 32
5.7 Overview diagram ........................................................................................... 33
6. Power Quality ........................................................................................ 35
6.1 Phasor diagram ................................................................................................ 36
6.2 Flicker ................................................................................................................... 37
6.3 Report EN 50160 .............................................................................................. 38
6.3.1 Power frequency .............................................................................................. 40
6.3.2 Supply voltage variations ............................................................................. 42
6.3.3 Rapid voltage changes .................................................................................. 44
6.3.4 Flicker severity .................................................................................................. 46
6.3.5 Voltage unbalance .......................................................................................... 49