Ampcontrol ELD V2, User Manual

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ELD V2 EARTH LEAKAGE RELAY
Issue: R8, Date: 10/08/2011, CRN: 8530
ELDB006 Rev8 ELD V2 (2002) Earth Leakage Protection Relay User Manual
Page 3
Table of Contents:
Safety and other Warnings ............................................................................................................................................ 1
Copyright Notice ............................................................................................................................................................ 2
Disclaimer ...................................................................................................................................................................... 2
Before You Begin .......................................................................................................................................................... 2
Ampcontrol Electronics Contact details: ........................................................................................................................ 2
1
Receiving and Storage ......................................................................................................................................... 4
1.1 Receiving ........................................................................................................................................................ 4
1.2 Storage after Delivery ..................................................................................................................................... 4
1.3 Unpacking of Equipment ................................................................................................................................. 4
2
General Safety ..................................................................................................................................................... 5
2.1 Personnel Safety Warnings ............................................................................................................................. 5
2.1.1 Relevant Personnel ............................................................................................................................. 5
2.1.2 Safety Communication ........................................................................................................................ 5
2.2 Safe Use of Equipment ................................................................................................................................... 5
2.2.1 Changes to Equipment ........................................................................................................................ 5
2.2.2 Equipment Knowledge ........................................................................................................................ 5
3
Overview of Earthing Protection........................................................................................................................... 6
3.1 Protection Systems ......................................................................................................................................... 6
4
The Need for Earth Leakage Protection ............................................................................................................... 7
4.1 Overview of Protection Problems .................................................................................................................... 7
4.2 Earth Leakage Systems .................................................................................................................................. 7
4.3 Methods of Earth Leakage Protection ............................................................................................................. 8
4.3.1 Core Balance Protection ..................................................................................................................... 8
4.3.2 Series Neutral Protection .................................................................................................................... 8
4.4 Earth Leakage Toroids .................................................................................................................................... 9
4.4.1 Toroid Selection .................................................................................................................................. 9
4.4.2 Toroid Installation Guidelines .............................................................................................................. 9
5
ELD Earth Leakage Breaker-Operation & Testing ............................................................................................. 10
5.1 Description of Operation ............................................................................................................................... 10
5.2 Methods of Earth Leakage Protection ........................................................................................................... 10
5.3 Testing Procedure ......................................................................................................................................... 11
5.4 Toroids .......................................................................................................................................................... 11
5.5 Mode of Operation ........................................................................................................................................ 11
6
Specifications ..................................................................................................................................................... 11
7
Maintenance & Disposal .................................................................................................................................... 13
7.1 Equipment Maintenance ............................................................................................................................... 13
7.2 Disposal of System Parts .............................................................................................................................. 13
8
Equipment List ................................................................................................................................................... 13
Appendix A – Drawings ............................................................................................................................................... 14