METREL EurotestXC MI 3152, Instruction Manual

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MI 3152(H) Eurotest XC (2,5 kV) Table of contents
4
4.8.6 Opening a Workspace ........................................................................................... 47
4.8.7 Deleting a Workspace / Export .............................................................................. 47
4.8.8 Importing a Workspace .......................................................................................... 48
4.8.9 Exporting a Workspace ......................................................................................... 49
5 Memory Organizer .......................................................................................................... 50
5.1 Memory Organizer menu ........................................................................................... 50
5.1.1 Measurement statuses .......................................................................................... 50
5.1.2 Structure Objects ................................................................................................... 51
5.1.3 Selecting an active Workspace in Memory Organizer ............................................ 52
5.1.4 Adding Nodes in Memory Organizer ...................................................................... 53
5.1.5 Operations in Tree menu ....................................................................................... 54
5.1.6 Searching in Memory Organizer ............................................................................ 72
6 Single tests ...................................................................................................................... 75
6.1 Selection modes ........................................................................................................ 75
6.1.1 Single test (measurement) screens ....................................................................... 76
6.1.2 Setting parameters and limits of single tests .......................................................... 78
6.1.3 Single test start screen .......................................................................................... 79
6.1.4 Single test screen during test ................................................................................ 80
6.1.5 Single test result screen ........................................................................................ 81
6.1.6 Editing graphs (Harmonics) ................................................................................... 83
6.1.7 Recall single test results screen ............................................................................ 83
6.1.8 Single test (inspection) screens ............................................................................. 85
6.1.9 Help screens ......................................................................................................... 89
7 Tests and measurements ............................................................................................... 90
7.1 Voltage, frequency and phase sequence ................................................................... 90
7.2 R iso
– Insulation resistance ...................................................................................... 93
7.3 The DAR and PI diagnostic (MI 3152H only) ............................................................. 95
7.4 Varistor test ............................................................................................................... 97
7.5 R low
– Resistance of earth connection and equipotential bonding ........................... 99
7.6 Continuity
– Continuous resistance measurement with low current ......................... 101
7.6.1 Compensation of test leads resistance ................................................................ 102
7.7 Testing RCDs .......................................................................................................... 104
7.7.1 RCD Uc
– Contact voltage .................................................................................. 105
7.7.2 RCD t
– Trip-out time........................................................................................... 106
7.7.3 RCD I
– Trip-out current ...................................................................................... 107
7.8 RCD Auto
– RCD Auto test ..................................................................................... 108
7.9 Z loop
– Fault loop impedance and prospective fault current ................................... 111
7.10 Zs rcd
– Fault loop impedance and prospective fault current in system with RCD ... 113
7.11 Z loop m

– High precision fault loop impedance and prospective fault current ...... 116
7.12 Z line
– Line impedance and prospective short-circuit current ................................. 119
7.13 Z line m

– High precision line impedance and prospective short-circuit current .... 122
7.14 Voltage Drop ........................................................................................................... 125
7.15 Earth
– Earth resistance (3-wire test) ...................................................................... 128
7.16 Earth 2 clamp
– Contactless earthing resistance measurement (with two current
clamps) ............................................................................................................................... 130
7.17 Ro
– Specific earth resistance ................................................................................. 132
7.18 Power ...................................................................................................................... 134
7.19 Harmonics ............................................................................................................... 136
7.20 Currents .................................................................................................................. 138
7.21 ISFL
– First fault leakage current (MI 3152 only) ..................................................... 140
7.22 IMD
– Testing of insulation monitoring devices (MI 3152 only) ................................ 142
7.23 Rpe
– PE conductor resistance ............................................................................... 145