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TABLE of CONTENTS
SAFETY INSTRUCTION .................................................................................... 3
Attention ................................................................................................................................. 3
For your safety ..................................................................................................................... 3
If the mains fuse must be replace ...................................................................................... 4
1. INTRODUCTION ...................................................................................................... 5
FEATURES ............................................................................................................... 5
2. THE FRONT PANEL EXPLANATION .................................................................... 6
3. OVER / UNDER FREQUENCY RELAY TESTING ................................................. 7
3.1 Introduction ............................................................................................................................. 7
3.2 Preliminaries ...................................................................................................................... 7
3.3 Connection schematic ....................................................................................................... 8
3.4 Threshold frequencies : pickup and drop-out ............................................................... 9
3.5 Delay times : for pickup and drop-out ......................................................................... 11
4. OTHERS TESTING ........................................................................................................... 13
4.1 Over and under voltage relay ........................................................................................ 13
4.1.1 Introduction ................................................................................................................ 13
4.1.2 Preliminaries ............................................................................................................... 13
4.1.3 Connection schematic ................................................................................................ 14
4.1.4 Threshold voltages : pickup and drop-out .............................................................. 15
4.1.5 Delay times : for pickup and drop-out .................................................................... 17
4.2 Frequency meter for external use ................................................................................. 20
4.3 Millisecond counter for external use ............................................................................ 20
5. SPESIFICATIONS ............................................................................................................. 20
6. ACCESSORIES .................................................................................................... 21