Table Of Contents - ISA T1000 PLUS User Manual

DOC. MIE91093
SHORT FOREWORD ............................................................................. 7
SAFETY AT WORK................................................................................. 8
INTRODUCTION .................................................................................. 11
1 APPLICATION EXAMPLES ........................................................... 14
1.1 O
VERCURRENT RELAY TESTING
1.1.1. Introduction ..................................................................... 16
1.1.2. Connection to current outputs ............................... 17
1.1.3. I> Threshold and drop-off ......................................... 19
1.1.4. I>> Threshold and drop-off ..................................... 20
1.1.5. Trip and drop-off timing ............................................. 21
1.2
OVER AND UNDER VOLTAGE
1.2.1. Introduction ..................................................................... 21
1.2.2. Connection to voltage output .................................. 22
1.2.3. V> Threshold and drop-off ........................................ 24
1.2.4. V< Threshold and drop-off ........................................ 24
1.2.5. Trip and drop-off timing ............................................. 25
1.2.6. Hint: how to test a three-phase voltage relay25
1.2.7. Hint: vector group test for a PT transformer . 26
1.3 DC
VOLTAGE RELAY TESTING
1.3.1. Introduction ....................................................................... 28
1.3.2. Connection to voltage output .................................. 28
1.3.3. V< Threshold and drop-off ........................................ 30
1.3.4. Trip and drop-off timing ............................................. 31
1.4 R
EVERSE POWER RELAY TESTING
1.4.1. Introduction ....................................................................... 32
1.4.2. Connection of the relay .............................................. 33
1.4.3. P% Threshold and drop-off ...................................... 37
1.4.4. Threshold and drop-off of other points ............. 37
1.4.5. Trip and drop-off timing ............................................. 38
1.5 D
IRECTIONAL RELAY TESTING
1.5.1 Introduction ........................................................................ 39
1.5.2. Connection of the relay .............................................. 41
1.5.3. MTA and angle sector ................................................... 44
1.5.4. V-I curve test .................................................................... 46
1.5.5. Trip and drop-off timing ............................................. 47
1.6 O
VER AND UNDER FREQUENCY RELAY TESTING
1.6.1. Introduction ..................................................................... 48
1.6.2. Connection to voltage output .................................. 49
Rev. 1.34
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