Ampcontrol ELV-PRO User Manual
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Ampcontrol ELV-PRO User Manual

Earth leakage relay
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ELV-PRO
EARTH LEAKAGE RELAY
User Manual
Version: 5, November 2020
Designed and manufactured in Australia by Ampcontrol Pty Ltd

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  • Page 1 ELV-PRO EARTH LEAKAGE RELAY User Manual Version: 5, November 2020 Designed and manufactured in Australia by Ampcontrol Pty Ltd...
  • Page 2 The note symbol highlights key information. Please share these notes with other operators. ENVIRO The enviro (environmental) symbol highlights areas which may have an impact on the surrounding fauna and/or flora. Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 2 of 59...
  • Page 3 Copyright Notice The Ampcontrol Earth Leakage Relay ELV-PRO described in this document is the property of AMPCONTROL PTY LTD. It is furnished under a license agreement and is to be used only in accordance with the terms of the agreement.

  • Page 4: Table Of Contents

    Equipment Maintenance ................43 Disposal ....................43 8 SPECIFICATIONS ..................44 9 EQUIPMENT LIST ..................44 APPENDIX A: MINING EARTH LEAKAGE PROTECTION WITH VARIABLE SPEED DRIVES ......................45 Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 4 of 59...
  • Page 5 D3 Read Modbus Address Table ..............57 D4 Uint16 Encoded String ................58 D5 Write Modbus Address Table ..............58 APPENDIX E: ELV-PRO Default Settings ............59 Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 5 of 59...
  • Page 6 Figure 6-13: ELV-PRO Web Interface - About ..................40 Figure 6-14: ELV-PRO Web Interface - Interactive Graph Navigation ............. 41 Figure 6-15: ELV-PRO - Web Interface - Protection Function Trip ............41 Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version...
  • Page 7 Table 3: Earth Leakage Trip level ......................27 Table 4: Earth Leakage Trip Time ......................27 Table 5: Digital Input Settings ......................... 28 Table 6: ELV-PRO Relay Fascia LED Operation ..................29 Table 7: Web Interface Status Indicators ....................31 Table 8: Event ID Descriptions ....................... 37 Table 9: Login Details ..........................

  • Page 8: Table 1: Definitions

    All trip times specified are to the opening of the MCR Neutral Earthing Resistor Network Time Protocol Root Means Square Real Time Clock Transmission Control Protocol Unshielded Twisted Pair Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 8 of 59...

  • Page 9: Safety And Other Warnings

    MAG-219 Version 5 – NOVEMBER/2020 1 SAFETY AND OTHER WARNINGS For safety reasons, the ELV-PRO must be installed, operated and serviced only by competent personnel. Please read and understand this instruction manual completely before installing, operating or servicing this equipment. Failure to install or operate this instrument in accordance with the instructions contained in this manual may create hazardous operating conditions.

  • Page 10: Receiving And Storage

    If there is evidence of physical damage, notify Ampcontrol immediately. Notify Ampcontrol immediately in the case of any discrepancies to the packing list. Keep a record of any claims and correspondence. Photographs are recommended.

  • Page 11: Product Overview

    * International patent application number PCT/AU2011/000705 Application The ELV-PRO is intended for use at transformer NER connection points as a BUEL Protection relay. The relay is not limited to be used in this configuration only, and can be utilised on any individual outlet if desired.

  • Page 12: Installation

    These instructions have been designed to assist users of the ELV-PRO with installation. Before the ELV-PRO 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.

  • Page 13: Mechanical Installation Information

    Figure 4-1: ELV-PRO Dimensions The ELV-PRO metal enclosure is rated at IP20. It is DIN Rail mounted and measures 135mm x 135mm and 107mm deep as per Figure 4-1. The terminal layout and description is shown in Figure 4-2 and Table 2 respectively.

  • Page 14: Table 2: Elv-Pro Terminal Designators

    P6_4 Unused P3_1 Power Supply Input: +24V P6_3 EL CT Cable Shield P6_2 EL CT Input: Signal Screw Chassis Earth Connection P6_1 EL CT Input: Common Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 14 of 59...

  • Page 15: Electrical Installation Information

    ELV-PRO USER MANUAL MAG-219 Version 5 – NOVEMBER/2020 Electrical Installation Information A typical installation diagram of the ELV-PRO is shown below, Figure 4-3. The following sub-sections provide a more detailed description of each of the individual circuit elements. P3_1 P1_5...

  • Page 16: Figure 4-4: Electrical Connections - Elv-Pro Power Supply (Plug 3)

    (right) is a dedicated digital input and Trip Reset 24V supply. All terminals of plug 2 are internally connected. Plug 4 (left) is a dedicated input plug; terminals P4_1 - P4_5 are assignable digital inputs, with terminal P4_6 the Reset input. The Trip Reset Input allows the ELV-PRO to be reset remotely. RESET P/B...

  • Page 17: Figure 4-6: Electrical Connections - El Ct, Ct Test And Zero Crossing Connections (Plug 6)

    To ensure the CT is connected and the signal the relay monitors is correct, a CT test output is provided on terminals P6_5 & P6_6. A missing CT Test signal through the CT will cause the ELV-PRO relay to trip. The test signal is applied every two seconds, and may be seen on the live screens and data logs.

  • Page 18: Figure 4-7: Electrical Connections - Phase Ct Input (Plug 5)

    4.4.4 Phase CT Input (Plug 5) The ELV-PRO relay has an optional phase CT input (Any suitable toroid with a secondary rating of 5A) which is captured only during a logged event if available. The CT is connected to terminals P5_1 &...

  • Page 19: Figure 4-8: Electrical Connections - Control Contact Outputs Connections (Plug 1)

    Figure 4-8: Electrical Connections – Control Contact Outputs Connections (Plug 1) 4.4.6 ELV-PRO Dongle Input (Dedicated Dongle Slot) The ELV-PRO has a dedicated dongle input, item 2 of Figure 4-10. The dongle is keyed and therefore has a specific orientation. Refer to Figure 4-9.

  • Page 20: Figure 4-11: Elv-Pro Toroid Installation Examples

    The ELV-PRO can be removed by simply removing the plugs and dislodging the Analyser from the DIN rail. Each plug is secured to the ELV-PRO through two screws on either end to prevent the plugs becoming loose during operation or transport.
  • Page 21 This will allow the relay to provide EL protection that includes the drive itself. 4.4.10 ELV-PRO Phase Monitoring Toroid The ELV-PRO has provision for the connection of a suitable toroid, with a secondary rating of 5A, to monitor a phase current in the system. NOTE...

  • Page 22: Product Operation

    Leakage Protection Relay. This section will discuss the various features of the relay. Earth Leakage Protection The Earth Leakage (EL) protection used in the ELV-PRO is based upon the ELV wideband EL Protection relay. The relay is designed to AS/NZS 2081:2011 Section 6. The ELV-PRO, like the ELV, uses patented technology (AU2011264414) to characterise earth leakage currents giving superior fault discrimination, particularly in applications involving switching power electronics and variable speed drives.

  • Page 23: Data Logging

    Real Time Clock (RTC) Recorded data is stored on the ELV-PRO with a time stamp, indicating the system time when the log was made. For the purposes of aligning recorded data with other records, it is important that the user regularly checks that the time on the RTC reflects a level of accuracy acceptable to the user.

  • Page 24: Ip Configuration

    IP address, subnet mask and gateway address. These are typically specified by your network administrator. Connection to the ELV-PRO’s internal web server requires access to a web browser on a connected PC or GUI that has access to HTTP port 80. Network settings will need to be configured correctly to successfully connect to the ELV-PRO web server.

  • Page 25: Figure 5-2: Network And Sharing Center

    Figure 5-2: Network and Sharing Center Click on “Local Area Connection” for the status page to appear as in Figure 5-3. Figure 5-3: Local Area Connection Status (left) and Properties (right) Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 25 of 59...

  • Page 26: Protection Settings

    Once you have configured the network adapter settings, open up a web browser and type the following IP address into the browsers address bar: 10.1.1.10 The ELV-PRO Web Interface should appear as detailed in Section 6. Protection Settings The modifiable settings of the ELV-PRO include the following: ...

  • Page 27: Table 3: Earth Leakage Trip Level

    These values can be seen below. Table 4: Earth Leakage Trip Time Max. Trip Time Max. Trip Time Instant (50ms) 300ms 100ms 350ms 150ms 400ms 200ms 450ms 250ms 500ms Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 27 of 59...

  • Page 28: Elv-Pro Cip Over Ethernet/Ip Interface

    The ELV-PRO has included EIP protocol to allow external equipment (capable of communicating in this protocol) to monitor and reset the ELV-PRO, such as a PLC. The EIP commands and configuration can be seen in APPENDIX C: ELV-PRO CIP OVER ETHERNET/IP.

  • Page 29: Operational Interface

    ELV-PRO Facia Interface The ELV-PRO has a basic interface on the front of the relay. The relay has been specifically designed to operate through a PC or web server when connected to a network. The ELV-PRO interface is shown in Figure 6-1.

  • Page 30: Elv-Pro Web Interface

    6.2.1 Connecting to the ELV-PRO Web Interface In order to connect to the ELV-PRO Web Interface, the user must type the IP address of the Analyser that they wish to connect to into their web browsers address bar. To view the Web Interface, the computer that is accessing the Analyser must be connected to the same network as the Analyser.

  • Page 31: Table 7: Web Interface Status Indicators

    Trip Time  EL Current The relay description in the top of the screen is defined in the ELV-PRO dongle settings (see Section 6.2.6Error! Reference source not found.). This description is also used to correctly identify the connected ELV-PRO relay.

  • Page 32: Figure 6-3: Elv-Pro Web Interface - Live Graphs (Rms)

    MAG-219 Version 5 – NOVEMBER/2020 6.2.2 Live Graphs Tab Figure 6-3 shows the ELV-PRO Live Graphs interface. By default, the Live Graphs tab displays the RMS graph of the past 30 seconds. The graphs in this tab are refreshed every second; provided the Live Update button (Item 2 of Figure 6-3) is activated (default is ON).

  • Page 33: Figure 6-4: Elv-Pro Web Interface - Live Graphs (Osc)

    Ampcontrol Pty Ltd – ABN 28 000 915 542 ELV-PRO USER MANUAL MAG-219 Version 5 – NOVEMBER/2020 Figure 6-4: ELV-PRO Web Interface - Live Graphs (OSC) Figure 6-5: ELV-PRO Web Interface - Live Graphs (FFT) Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version...

  • Page 34: Figure 6-6: Elv-Pro Web Interface - Data Logs

    6.2.3 Data Logs Tab The Data Logs tab is similar to the Live Graphs tab, in that it allows inspection of measured earth leakage currents. However, in this tab, historic measurements from data logs stored on the ELV-PRO relay are shown.

  • Page 35: Figure 6-7: Elv-Pro Web Interface - Data Logs (Osc)

    Ampcontrol Pty Ltd – ABN 28 000 915 542 ELV-PRO USER MANUAL MAG-219 Version 5 – NOVEMBER/2020 Figure 6-7: ELV-PRO Web Interface - Data Logs (OSC) Figure 6-8: ELV-PRO Web Interface - Data Logs (RMS) Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version...

  • Page 36: Figure 6-9: Elv-Pro Web Interface - Data Logs (Fft)

    ELV-PRO USER MANUAL MAG-219 Version 5 – NOVEMBER/2020 Figure 6-9: ELV-PRO Web Interface - Data Logs (FFT) 6.2.4 Event Logs Tab This tab shows the 50 most recent user changes made at the unit, see Figure 6-10. To export this list, use the link above the log (item 1) to show the log entries in a separate popup window for printing or copy-pasting.

  • Page 37: Table 8: Event Id Descriptions

    NTP server (used to determine size of system time change.) The system’s time has been modified based upon the NTP Post Large NTP Time Adjustment server (used to determine size of system time change.) Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 37 of 59...

  • Page 38: Figure 6-11: Elv-Pro Web Interface - Device Info

    ADC Settings  Software Information  General Settings  Systems Trips  Digital Input Settings  Hardware Status Figure 6-11: ELV-PRO Web Interface - Device Info Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 38 of 59...

  • Page 39: Figure 6-12: Elv-Pro Web Interface - Settings

    Table 9 below. Once the desired settings have been changed, select “Save Settings” to save and return to the Home page. Table 9: Login Details Username admin Password Password Figure 6-12: ELV-PRO Web Interface – Settings Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 39 of 59...

  • Page 40: Figure 6-13: Elv-Pro Web Interface - About

    CT detection trips. When the ELV-PRO has been installed and powered up for the first time in an installation, it is recommended that the user press the ‘Calibrate ADC’ button on the settings page. When doing this the outlet or outlets the relay is protecting should not be energised.

  • Page 41: Figure 6-14: Elv-Pro Web Interface - Interactive Graph Navigation

    Figure 6-15) and page background changes to red. The Reset pin code entry and button will also appear, see Item 2 in Figure 6-15. To reset, simply enter the pin and select the reset button. Figure 6-15: ELV-PRO - Web Interface - Protection Function Trip Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version...

  • Page 42: Service, Maintenance & Disposal

    A number of external system based checks should be completed on a regular basis. These ‘routine inspections’ must be carried out by suitably trained people with knowledge of the ELV-PRO and the systems into which it is fitted. Routine inspections may take the form of either visual-only checks, or visual and ‘hands-on’...

  • Page 43: Equipment Maintenance

    It is recommended that the electrical protection system incorporating the ELV-PRO be subject to regular functional tests at intervals determined by risk assessment of FMEA. These intervals typically coincide with periodic maintenance checks and will cover (but not limited to) tests such as earth continuity tests.

  • Page 44: Specifications

    Standard Protocol, See below for details Modbus IP Standard Protocol, See below for details Find Out More For more information on this product, contact Ampcontrol Customer Service on +61 1300 267 373 or customerservice@ampcontrolgroup.com or visit the Ampcontrol website: www.ampcontrolgroup.com 9 EQUIPMENT LIST Part Number...

  • Page 45: Appendix A: Mining Earth Leakage Protection With Variable Speed Drives

    (typically 5A) determined by the NER. These large currents may cause touch potentials that greatly exceed the expected values. Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 45 of 59...
  • Page 46 (50 Hz), protection performance is unlikely to be adequate when variable speed drives are used in mining applications. Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 46 of 59...

  • Page 47: A2 Improving Protection

    It can be seen that this is not a trivial matter and it is likely that the industry will need to adapt to this new and complex environment. Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 47 of 59...

  • Page 48: Appendix B: Elv-Pro Current Transformers

    1. Select the smallest internal diameter toroid, which will allow the cables to fit through. Avoid very large toroids (>200mm aperture) or toroids with square apertures. 2. Only use approved toroids specified by Ampcontrol as these have been designed to minimise problems.

  • Page 49: Appendix C: Elv-Pro Cip Over Ethernet/Ip

    ELV-PRO USER MANUAL MAG-219 Version 5 – NOVEMBER/2020 APPENDIX C: ELV-PRO CIP OVER ETHERNET/IP The ELV-PRO communicates with a PLC, implementing CIP (Common Industrial Protocol) over EtherNet/IP. C1 ELEMENTARY DATA TYPES The elementary data types used within this document are taken from table C-2.1 from the CIP Specification, and are as follows.

  • Page 50: C2 Live Data Segment Definition

    0x0004 RTC Fault An error has been detected with the Real Time Clock 0x0008 Digital Input Fault The sampling of the digital inputs are in fault Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 50 of 59...

  • Page 51: C3 Controls

    Attempts to clear any active trips within the system Others Unused NOTE Unused bits should not be written. They may be used in future software versions. Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 51 of 59...

  • Page 52: C4 Explicit Messages

    Digital Input Action Normally Open No Action Normally Closed No Action Normally Open Generate Log Normally Closed Generate Log Normally Open Trip Unit Normally Closed Trip Unit Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 52 of 59...
  • Page 53 Instances Implemented Instances: 1 Instance Attributes Attribute ID Access Rule Name Data Type Description of Attribute Firmware Name String Firmware Version String Unit Serial Number String Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 53 of 59...

  • Page 54: C5 Event Logs

    C5 EVENT LOGS The ELV-PRO stores the last 50 events. The events are stored from new to old; as a new event is created an old event is deleted (provided that the 50 event spaces are full). To allow the PLC to access these events, the ELV-PRO presents them as 5 instances, each containing 10 encoded event structures.
  • Page 55 Event Log, Instance N, Attribute 7 EVENT STRUCT 48-53 Event Log, Instance N, Attribute 8 EVENT STRUCT 54-59 Event Log, Instance N, Attribute 9 EVENT STRUCT *NOTE: N ranges from 1-5. Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 55 of 59...

  • Page 56: Appendix D: Elv-Pro Modbus Tcp

    A solid block when a parity error is detected A solid block when noise is detected A solid block when a framing error is detected Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 56 of 59...

  • Page 57: D3 Read Modbus Address Table

    Status Mask 1 RTC Fault Digital Input Fault 4-15 Reserved Temperature measured inside the ELV-PRO. Value is given to 1 Internal Temperature decimal point by multiplying actual temp by 10. Range of values is - 20°C to +100°C. Description (0 = open, 1 = closed)

  • Page 58: D4 Uint16 Encoded String

    Eg the string ‘Hello’ will be encoded as 0x4865, 0x6c6c, 0x6f00 D5 Write Modbus Address Table Modbus Address Name Bit Identification Description Reserved Reset Control Trip Reset 2-15 Reserved Reserved Uncontrolled Copy - Refer to Ampcontrol Website for Latest Version Page 58 of 59...

  • Page 59: Appendix E: Elv-Pro Default Settings

    The following settings are considered the factory default settings. Default settings will be utilised on an ELV-PRO that is booted with no dongle installed or when booted with a brand new dongle installed. If the ELV-PRO is booted with a brand new dongle installed, settings will not be saved to the dongle until a setting is modified.

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