GridSense Line IQ LIQ60 User Manual
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GridSense Line IQ LIQ60 User Manual

Conductor mounted sensors
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User Manual
000-2166 Rev 3.0
Franklin Grid Solutions LLC
December 20, 2017

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Summary of Contents for GridSense Line IQ LIQ60

  • Page 1 User Manual 000-2166 Rev 3.0 Franklin Grid Solutions LLC December 20, 2017...
  • Page 3 Copyright © Franklin Grid Solutions, LLC 2010-2017 The material presented in this manual is copyright protected by Franklin Grid Solutions LLC. Any reproduction in whole or in part for any purpose without the prior written consent of Franklin Grid Solutions LLC is strictly prohibited. Information in this document is subject to change without notice.

  • Page 4: Table Of Contents

    Contents Safety ..........................4 Hazard Assessment ....................4 Working on energized conductors and equipment ..........4 Equipment safety ....................5 Introduction to the LineIQ device family ............... 6 Glossary ........................8 Implementation Scenarios ..................10 System Functionality..................... 10 LIQ-60 Conductor Mounted Sensor overview ............10 2.4.1 LIQ-60 Design………………………………………………………………………11 LIQ-60 Sensing………………………………………………………………………..12...
  • Page 5 Solar Panels ......................24 Solar Panel orientation………………………………………………………………..24 7.2.1 7.2.2 Adjusting the solar panel on the LIQ-60…………………………………………….26 Appendix A – LineMan………………………………………………………………………...28 A.1 LineMan Overview ....................... 28 A.2 Setting up an LIQ-LocalLink ..................28 A.3 Connecting to the CMS with LineMan ............... 28 A.4 Displaying LIQ-60 Status/Summary ................

  • Page 6: Safety

    The information given in this document is given as a guide only. It is the user's responsibility to ensure that correct and safe procedures are followed at the actual worksite. GridSense offers no warranty or indemnity for accidents that may occur when following these instructions.

  • Page 7: Equipment Safety

    1.3 Equipment safety The LIQ-Gateway and associated equipment should be maintained and regularly tested to make sure the equipment is in good order. Page 5 of 37 000-2166 Rev 3.0 Franklin Grid Solutions LLC...

  • Page 8: Introduction To The Lineiq Device Family

    Introduction to the LineIQ device family The LineIQ monitoring system allows electricity utilities and other operators of high and medium voltage overhead conductor distribution and transmission lines to monitor and respond to faults and load changes on the supply grid. The monitoring system consists of Conductor Mounted Sensors (CMS), data collators, and remote or on-site PC-based aalysis and control software.
  • Page 9 Page 7 of 37 000-2166 Rev 3.0 Franklin Grid Solutions LLC...

  • Page 10: Glossary

    2.1 Glossary Term Meaning Conductor Mounted Sensor which detects events on a conductor and logs voltage, current and temperature for periodic downloading. The LIQ-60 is a CMS. Commission Putting equipment into use for the first time. Follows after c o n f i g u r a t i o n . Configure The process of setting up equipment to perform a designated task.
  • Page 11 Term Meaning Return of When a CMS detects a return of voltage on the conductor after a fault c o n d i t i o n . volts Radio Frequency Root Mean Square (An amplitude of a measurable value, e.g. Voltage, written V ).

  • Page 12: Implementation Scenarios

    A possible implementation scenario is shown in Figure 2.This is a permanent configuration used for continuous monitoring of power lines using LIQ-60s, LIQ-Gateways and LineMan communications software. Figure 1: An installation of GridSense devices as part of a permanent monitoring configuration. 2.3 System Functionality With regards to communication among the components in the LineIQ family, the LIQ-60s and the LIQ- Gateway (and, if present, a laptop PC using an LIQ-LocalLink), form a local area network, the LIQ-LAN.

  • Page 13: Liq-60 Design

    Figure 2: The LIQ-60 Conductor Mounted Sensor. The LIQ-60 is installed live on a bare overhead conductor and detects and logs disturbance events such as fault currents or loss and return of voltage. Each event is date and time stamped (DTS) and recorded to non-volatile memory for later analysis. High intensity LEDs are provided to indicate line and fault status to maintenance crews.

  • Page 14: Liq-60 Sensing

    2.4.2 LIQ-60 Sensing The LIQ-60 measures conductor current, conductor voltage, ambient and conductor temperature, and calculates Displacement Power Factor. Current Current is sensed with a Rogowski coil, which is automatically closed around the conductor during the installation process. The inherent nature of a Rogowski coil (which does not have a magnetic core) means that the coil does not saturate, allowing the LIQ-60 to measure currents over a wide dynamic range, from 1 A up to 25 kA.

  • Page 15: Operation Modes

    2.4.3 Operation Modes For the majority of time that the LIQ-60 is installed it will simply be monitoring and storing its input values. There will be minimal radio communications during this time, restricted to periodic status requests from an LIQ-Gateway, unless initiated by an external device such as a Laptop PC using LIQ- LocalLink. Should an event such as a power outage occur, there will be increased radio communications when the event is detected.
  • Page 16 High Current 4 – when a rapid change in current exceeds a selected delta value. (In other words when the difference between normal and detected current exceeds a selected value.) Contact your nearest GridSense support center for further information. Loss of Power.

  • Page 17: Visual Indicators

    Occurrence) is recorded. This process continues until the end of the event profile recording period. This recording method allows a detailed time plot of the conductor current to be constructed. This plot has sufficient detail to enable the sequence of current changes caused by recloser operation to be reconstructed.
  • Page 18 LIQ-60 Status LED During sensing mode, this amber LED indicates that the LIQ-60 is powered on by flashing briefly once every 30 seconds. At other times (start-up etc.) this LED provides other information. See Table 1 on page 17 below. LIQ-60 Fault LEDs During sensing mode, these red LEDs indicate that the LIQ-60 has sensed a fault in the overhead conductor.
  • Page 19 At the end of the firmware upgrade process, the LIQ-60 will restart. The LIQ-60’s LED indicator flash patterns The LEDs are also used to indicate other operational statuses. The various flash patterns a r e summarized in Table 1. Indication LIQ-60 LED Flash patterns Meaning (single)

  • Page 20: Power Factor Calculation

    2.4.5 Power Factor Calculation Overview This overview gives a brief introduction to Power Factor values, i.e. what is meant by Displacement Power Factor and True Power Factor. Appendix A – LineMan which explains how to use LineMan to configure an LIQ-60 to measure Displacement Power Factor.

  • Page 21: Liq-Gateway Overview

    SCADA system via DNP3, IEC 61850 or Web services protocols. Communication with external systems is usually achieved using a GridSense supplied communication module. If for technical reasons this does not provide coverage in a specific area, other modems that are supported by GridSense can be used.
  • Page 22 Figure 4: The LIQ-LocalLink modem Page 20 of 37 File: LIQ User Manual V2.0...

  • Page 23: Initial Setup

    Click on the device interest and click on Summary. If the battery voltage is less than 2.0V then it should be charged before installation. It is recommended that you use a GridSense LIQ-Charger. Alternatively, the battery can be charged using the LIQ-60 solar panel. However, charging a completely flat battery may require optimal sunlight for up to 50 hours.

  • Page 24: Switching On The Liq-60

    3.2.1 Switching on the LIQ-60 The LIQ-60’s power switch is located on the bottom panel. It is a rotating switch that turns through 90 degrees between the OFF and ON positions, as indicated by arrows. • Rotate the switch clockwise to the ON position. In the ON position it will be in line with the 2 (red) fault indicating LEDs.

  • Page 25: Installation And Removal

    • The appropriate LIQ-Gateway (if used) has been assigned as a parent to the LIQ-60. • The correct phase and group have been assigned • Location information has been entered Installation and removal When installing or removing the LIQ-60, if using a hot stick, use only a hot stick rated for use at or above the voltage of the conductor on which the LIQ-60 is installed.

  • Page 26: Removal

    .) If the battery voltage is less than 2.0V then it should be charged before installation. It is recommended that you use a GridSense LIQ- Charger. Alternatively the battery can be charged using the LIQ-60 solar panel. However, charging a flat battery may require optimal sunlight for up to 50 hours.
  • Page 27 Figure 6: Direction of solar panels in northern and southern hemispheres. Angle With regard to angle from the horizontal, the best angle for a solar panel that does not get adjusted for seasonal variation, is 15° more than the latitude where the panel is installed. For example Sacramento, California, is at approximately 40°...

  • Page 28: Adjusting The Solar Panel On The Liq-60

    Figure 7: Angle of solar panel from horizontal. 7.2.2 Adjusting the solar panel on the LIQ-60 The solar panel has 2 separate adjustments that need to be made: • Rotation of the solar panel and its mounting to face toward the equator, and •...
  • Page 29 Stop Angle ( Stop 1 Stop 2 Stop 3 Stop 4 Stop 5 Stop 6 Table 2: LIQ-60 Angle Increments Page 27 of 37 000-2166 Rev 3.0 Franklin Grid Solutions LLC...

  • Page 30: Appendix A- Lineman

    Once the driver is installed you can run LineMan. A.3 Connecting to the CMS with LineMan Click on the Start → All Programs → GridSense → LineMan → LineMan to launch the LineMan application. Select the correct COM port as indicated by the LineMan Connection Window and click on Connect to Line Tracker.

  • Page 31: Displaying Liq-60 Status/Summary

    A.4 Displaying LIQ-60 Status/Summary Check the LIQ-60 of interest and click on Summary to display information such as firmware revision, software revision and thresholds. Figure 9: Device List Figure 10: Displaying LIQ-60 Summary Similarly, click on Status to display information such as charge current, battery voltage and etc. Page 29 of 37 000-2166 Rev 3.0 Franklin Grid Solutions LLC...

  • Page 32: Configuring An Liq-60

    A.5 Configuring an LIQ-60 Click Device Config to display and/or edit the LIQ description and measurement configuration. Figure 11: A.5 Configuring a CMS The user has the following configuration selection: Enter a 50 character description of the CMS Location into the Device Description field. Select the Position Number of the conductor that the LIQ-60 is on.

  • Page 33: Cms Data Download

    Click Apply Configuration to apply any configuration changes Click on Save Config Profile to Disk to save the config settings. A.6 CMS Data Download Click the Data Download tab button on the LineTracker Command windowpane. The Read All Window pane will pop-up. The user can choose to download either Event Data or both Events and Load Logging Data.
  • Page 34 Save the data file to the preferred location as prompted by the window. The user can monitor the download progress from the task bar. The status will change to Done for a successful download. Click on Finish to close the Read All Data window. Figure 13: File Download Page 32 of 37 File: LIQ User Manual V2.0...

  • Page 35: Appendix B - Window Xp Installation

    Appendix B – Window XP Installation The driver for the LIQ-LocalLink is provided with user documentation on the USB drive; shipped with LIQ- ® GatewayV1 and LIQ-60-KITs. The driver can also be downloaded from the Digi website on their web- XStick USB 802.15.4 page for the , at...
  • Page 36 At the next screen, insert the USB Drive and select “Install the software a u t o m a t i c a l l y ”: Figure 14: Windows XP driver installation dialog screen 2 The wizard will look for the driver and install it. Follow the steps until the wizard completes: Figure 15: Windows XP driver installation dialog screen 3 wizard installing an XStick as a “USB...
  • Page 37 The COM port on the PC that the LIQ-LocalLink is assigned to can be determined as follows (you will need to know the COM port number to set up communications between LineMan and the LIQ-LocalLink): On the Windows task bar, click the Start button, then select Control Panel > System > Device Manager: Figure 16: Device Manager showing USB serial COM port number In the example above, the USB serial port is COM port 3.

  • Page 38: Liq-60 Specifications

    Appendix C – LIQ-60 Specifications C.LIQ-60 specifications Application Medium V / High V overhead distribution network sensing and measurement, 4 wire, multiple grounds, 3 wire, single phase, SWER and mixed circuit installations. Item Description Interfaces Communication Local-RF Communication RF range 30m (100ft) line of sight. Status indicators Three high intensity LEDs, 2 x red &...
  • Page 39 Page 37 of 37 000-2166 Rev 3.0 Franklin Grid Solutions LLC...

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