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ELD V2 – EARTH LEAKAGE PROTECTION RELAY User Manual Part Number: 121581 Revision: 9 – March 2014 Designed and manufactured in Australia by Ampcontrol Electronics Pty Ltd...
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Ampcontrol Electronics ELDB006R9 ELD V2 USER MANUAL Rev 9 – 03/14, ECN: 10573 WARNING! This safety alert symbol identifies important safety messages in this manual and indicates a potential risk of injury or even death to personnel. When you see this symbol, be alert, your safety is involved, carefully read the message that follows, and inform other operators.
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Before You Begin We would like to take a moment to thank you for purchasing the Ampcontrol ELD V2 Earth Leakage Relay. WARNING!
1.1.5 Operation As safety depends on the ELD V2 relay functioning correctly it is highly recommended that all safety functions of the relay be periodically tested to ensure correct operation.
Equipment that is found to be damaged or has been modified away from its published specification must not be used. Please contact Ampcontrol if the equipment is suspected to be different than that ordered or if it does not match the published specifications.
These instructions have been designed to assist users of the ELD V2 relay with installation. Before the ELD V2 relay can be installed, there are a number of things that need to be considered and understood to prevent incorrect or unsafe operation of the relay or the system into which it is installed.
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Ampcontrol Electronics ELDB006R9 ELD V2 USER MANUAL Rev 9 – 03/14, ECN: 10573 Modifications must not be made to any part of the relay. As supplied, the unit is built to, and complies with the relevant standards. Modifications to its construction will render the unit non- compliant.
The protective device, such as an Ampcontrol ELD earth leakage relay, would then isolate the cable and contain the sparking within the cable before a heavy short circuit current due to a phase to phase fault occurs.
Ampcontrol Electronics ELDB006R9 ELD V2 USER MANUAL Rev 9 – 03/14, ECN: 10573 A definite time operating characteristic is provided with adjustable trip sensitivity and time delay. Time delay between protective units is introduced to allow the unit close to the fault to isolate the faulty circuit without causing the healthy part of the system to be de-energised.
Select the smallest internal diameter toroid, which will allow the cables to fit through. Avoid very large toroids (200mm) or toroids with square apertures. Only use approved toroids specified by Ampcontrol as these have been designed to minimise the problem.
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Ampcontrol Electronics ELDB006R9 ELD V2 USER MANUAL Rev 9 – 03/14, ECN: 10573 exists for the shield to become an earth loop, having finite resistance and injecting noise into the toroid leads. vii. To reduce the possibility of noise pickup, install twisted pair cable between the ELD relay and the toroid.
Ampcontrol Electronics ELDB006R9 ELD V2 USER MANUAL Rev 9 – 03/14, ECN: 10573 5 COMMISSIONING AND CALIBRATION Prior to being put into service, the electrical protection system must be correctly commissioned. This manual does not cover system commissioning; the full scope of commissioning tests should be determined during the risk assessment or FMEA covering the design of the electrical protection system.
‘Har.Trip’ LED (Harmonic Trip) will be illuminated. The ELD V2 Earth Leakage Relay is housed in a stainless steel case and can be either ‘DIN Rail’ or ‘Panel’ mounted through a 69 x 39mm cut out. When panel mounted the front of the ELD relay is designed to provide IP56 ingress protection.
6.2.2 Front Panel The front fascia of the ELD V2 relay consists of a two switches for selection of the Trip Level and Delay Time, five (5) indication LEDs for diagnostics support and a ten-segment LED bar graph to display the level of Earth Leakage current being measured.
Figure 3 shows a typical wiring diagram for the application of the ELD relay. Figure 3: ELD Typical Electrical Application 6.3.1 Supply The ELD V2 relay is able to operate across both AC and DC voltages ranges. The supply voltage can be 32-110VAC +/- 20% at 50Hz, or 20-185VDC. 6.3.2 Reset...
Ampcontrol Electronics ELDB006R9 ELD V2 USER MANUAL Rev 9 – 03/14, ECN: 10573 7 OPERATION SUMMARY 7.1 Rotary Switches Configuration 7.1.1 Trip Level selection The trip level can be selected via one of the rotary switches at the front of the unit. The trip level represents the threshold of current measured by the earth leakage toroid, above which a trip condition occurs.
This type of inspection may involve opening cabinets to gain access to the ELD V2 relay and other equipment. This level of inspection may also include cleaning display windows that have become obscured by dirt.
Ampcontrol Electronics ELDB006R9 ELD V2 USER MANUAL Rev 9 – 03/14, ECN: 10573 8.3 Disposal 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 environment and human health which could otherwise be caused by incorrect waste handling of this product.
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