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ELD V2 EARTH LEAKAGE

PROTECTION RELAY - USER MANUAL

Issue: R8 Aug 2011

CRN: 8530

Ampcontrol User Manual Part No: 121581

Designed and Manufactured in Australia by Ampcontrol CSM Pty Limited.

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Summary of Contents for ELD V2

Page 1: ...ELD V2 EARTH LEAKAGE PROTECTION RELAY USER MANUAL Issue R8 Aug 2011 CRN 8530 Ampcontrol User Manual Part No 121581 Designed and Manufactured in Australia by Ampcontrol CSM Pty Limited ...

Page 2: ...ual and indicates a potential risk of injury or even death to the personnel When you see this symbol be alert your safety is involved carefully read the message that follows and inform other operators CAUTION This safety alert symbol identifies important information to be read in order to ensure the correct sequence of work and to avoid damage or even destruction of the equipment and reduce any po...

Page 3: ...s or fitness for any particular purpose Ampcontrol further reserves the right to alter the specification of the system and or manual without obligation to notify any person or organisation of these changes Before You Begin We would like to take a moment to thank you for purchasing the ELD V2 Earth Leakage Relay Ampcontrol Electronics Contact details Ampcontrol CSM Pty Ltd 7 Billbrooke Close Camero...

Page 4: ...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...

Page 5: ...wrappings and covers for items attached to them especially if the wrappings are to be discarded 1 2 Storage after Delivery Where equipment is not to be installed immediately proper storage is important to ensure protection of equipment and validity of warranty All equipment should be stored indoors protected from the elements in a cool dry area If storing on the ground ensure that the storage area...

Page 6: ...y of any person the owner operator should notify the manufacturer immediately 2 2 Safe Use of Equipment Equipment supplied has been manufactured within the guide lines of the relevant Australian Standards and state legislative requirements Equipment identified within this manual has been designed for a specific intended purpose therefore any modification or damage must be reported to the manufactu...

Page 7: ...ection touch and step potentials of 50V or less will need to be assessed by a competent person or authority The protection systems that cover coal shale mines and metalliferous mining are detailed in AS NZS 2081 Section 1 2 and 3 General requirements for electrical protection devices for use in coal and shale mines Section 5 Earth Continuity monitoring devices Section 6 Earth Leakage protection de...

Page 8: ...cable before a heavy short circuit current due to a phase to phase fault occurs Earth fault protection has been applied with considerable success in limiting faults and providing quick disconnection of electrical apparatus from the supply in the event of earth fault situations A definite time operating characteristic is provided with adjustable trip sensitivity and time delay Time delay between pr...

Page 9: ...ction Earth Leakage Protection Relays for use in mining applications have to be designed and tested to AS NZS 2081 3 2002 for use on fault limited systems There are two methods of protection used They are the Core Balance and the Series Neutral earth leakage protection systems The Core Balance relay performs the primary protection in an installation protecting the outlet supplying power to a machi...

Page 10: ...uidelines would help to avoid such problems 4 4 1 Toroid Selection i Select the smallest internal diameter toroid which will allow the cables to fit through Avoid very large toroids 200mm or toroids with square apertures ii Only use approved toroids specified by Ampcontrol as these have been designed to minimise the problem 4 4 2 Toroid Installation Guidelines i Keep cables as close to the centre ...

Page 11: ...used in a stainless steel case and can be either DIN Rail mounted or Panel Mounted through a 69 x 39mm cut out When panel mounted the front of the ELD Relay is designed to provide IP 56 ingress protection There is provision to prevent unauthorised adjustment of the trip settings by sealing the post in front of the knurled nut with a lead seal thus inhibiting the unauthorized removal of the front f...

Page 12: ...r the reset button is released 5 4 Toroids The ELD V2 Relay is designed for use with Ampcontrol EL500S series Toroids They are available with window sizes 25 60 112mm These allow trip settings from 100mA to 2500mA 5 5 Mode of Operation To comply with AS NZS 2081 3 2002 the relay can only be operated in the fail safe mode This is the default mode where the relay drops out on fault or loss of power ...

Page 13: ...0 300 6 400 350 7 450 400 8 500 450 9 750 500 A 1000 500 B 1250 500 C 1500 500 D 1750 500 E 2000 500 F 2500 500 Read the following warning WARNING The above table refers to Version 2 of the ELD Relay designed and tested to AS NZS 2081 3 2002 Switch positions 9 to F have been modified from the Version 1 relay to comply with the 2002 version of the standard Verify you have the correct version of the...

Page 14: ...can be fatal The ELD V2 Earth Leakage Protection Relay does not have any customer serviceable parts and is not provided with any user adjustments 7 2 Disposal of System Parts The electronic equipment discussed in this manual must not be treated as general waste By ensuring that this product is disposed of correctly you will be helping to prevent potentially negative consequences for the environmen...

Page 15: ... Earth Leakage Protection Relay User Manual Page 14 Appendix A Drawings Drawing Number Description ELDA001 General Arrangement with Cut out Details ELDE002 Typical Connection Diagram The drawings appear in the following pages in the same order in which they are listed in the table above ...

Page 16: ...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 15 ...

Page 17: ...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 16 ...

Page 18: ...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 17 ...

Page 19: ...h Leakage Protection Relay User Manual Page 18 CAUTION The ELD relay includes a circuit for continually testing the toroid connection The resistance of the wiring between the relay and toroid must be kept below 1ohm If this is not done then a CT fault will be detected and the relay will trip ...

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