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ABB Excount II User Manual
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ABB Excount II User Manual

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EXCOUNT-II
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1HSA 801 080-15en EXCOUNT-II Users Manual

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Summary of Contents for ABB Excount II

  • Page 1 EXCOUNT-II User’s manual 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 2: Important Information

    Declaration of Conformity Hereby, ABB AB, declares that this EXCOUNT-II system is in compliance with the essential requirements and other relevant provisions of Directive 1999/5/EC. Federal Communications Commission Statement This device complies with part 15 of the FCC Rules.

  • Page 3: Safety Information

    Safety information Key to the symbols This symbol is a visual notice to avoid mistakes which can result in damage of the material and/or no function of the surge arrester monitor EXCOUNT-II. Read the text carefully and if you don’t understand do not proceed.

  • Page 4: Table Of Contents

    Table of contents Section Subject Page Important information Safety information 1. Introduction Sequence of installation EXCOUNT-II measuring principle 2. Before installation Inspection upon arrival Tools for assembly Insert the 9V battery in the transceiver Pre-installation Installation of battery in the sensor EXCOUNT-II software First time administration of the sensors 3.
  • Page 5 Table of contents Section Subject Page 4. Using the transceiver Transceiver functions Transceiver symbols Flowchart, making measurements Sychronization of the clocks Range of the communication Your body affects the signal strength Optimal direction of the internal transceiver antenna Direction of the sensor antenna Special configurations 4.10 Total versus individual readings...
  • Page 6 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 7: Introduction

    Introduction Section 1 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 8: Sequence Of Installation

    95/98/2000/ME/NT and XP). This users manual describes the functions of EXCOUNT-II to give you total control over surge monitoring. Please visit www.abb.com/arrestersonline for more information about EXCOUNT-II and also to download the latest version of the PC-pro- gram. 1.1 Sequence of installation As a quick guide, the respective procedure in the below table should be followed for safe and correct installation of the EXCOUNT-II.

  • Page 9: Excount-Ii Measuring Principle

    1. Introduction 1.2 EXCOUNT-II measuring principle Figure 1.2.1 The principle of measuring with EXCOUNT-II The sensor is mounted on the surge arrester in series with the earth conductor. It is important that the surge arrester is insulated from the ground with an insulating base. The sensor registers the number of discharges, categorizes and records the amplitudes of the surges together with their date and time and measures the leakage current.
  • Page 10 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 11: Before Installation

    Before Installation Section 2 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 12: Inspection Upon Arrival

    Any shortage or damage should be reported immediately to the insurance and/or ABB representative and not later than 30 days from the arrival of the goods. ABB cannot take responsibility for shortages or damages not reported within this time period.
  • Page 13 This will establish a link between the administration details in the PC-program and the sensor. Confirm that contact can be made with the sensor and revert to ABB if any error codes occur. This measurement need not be saved in the PC-program.

  • Page 14: Installation Of Battery In The Sensor

    2. Before installation 2.5 Installation of battery in the sensor The sensor’s primary power sources are the in-built solar panels and the field probe, which obtains the energy respectively from the sun and the electrical field surrounding the surge arrester. The energy is stored in a high efficiency capacitor.

  • Page 15: Excount-Ii Software

    Windows 95/98/2000/ME/NT and XP. To ensure you have the latest version, we suggest downloading the EXCOUNT-II software from the website www.abb.com/arrestersonline. Included with the delivery is a data cable for communication between the hand held transceiver and the computer.
  • Page 16 2. Before installation 2.6.4 Installation of USB drivers The EXCOUNT-II transceiver is fitted with a USB port which requires installation of special software drivers included on the CD. The Found New Hardware Wizard should be used to install devices when they are connected to the PC for the first time as this is the recommended procedure for reliable device operation.
  • Page 17 2. Before installation 3. Choose “Search for the best driver in these locations”. Then choose “Include this location in the search”, where you enter the path to the driver catalogue found on the EXCOUNT-II installation CD. Then click Next. Figure 2.6.2 1HSA 801 080-15en EXCOUNT-II Users Manual...
  • Page 18 2. Before installation 4. The system will discover that the drivers has not passed the Win- dows logo testing. This is only a warning arising from the unique nature of EXCOUNT-II and does not affect the driver or system performance. The device is USB compliant and the drivers are Windows compliant.
  • Page 19 2. Before installation 5. The system will find the setup files and follow the instruction of the setup file to copy drivers. Confirm the device drivers found and driver installation complete. Click Finish to close the wizard. Figure 2.6.4 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 20: First Time Administration Of The Sensors

    Figure 2.7.1 Administration data Main menu All current generation ABB and earlier ASEA gapless ZnO surge arrester types are included in the arrester data. For other types of gapless surge arresters, simply select the appro- priate IEC class from the dropdown list, see figure 2.7.2.
  • Page 21 2. Before installation 2. Connect the transceiver to the PC via the data cable. See also sec- tion 2.6.4 for installation of USB drivers if this is the first time use of the transceiver. Download the sensor’s ID from the EXCOUNT-II software into the Transceiver as described in the EXCOUNT-II help system for Transfer data, see figure 2.7.3.
  • Page 22 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 23: Sensor Installation

    Sensor Installation Section 3 1HSA 801 080-15en EXCOUNT-II Users Manual...
  • Page 24 3. Sensor installation Safety information Serious material damage, severe personal injury and/or death can be the result of not following this instruction. Therefore, the personnel responsible for the installation of the equipment shall read and follow this instruction carefully. Handling and maintenance of all the sensors described in this instruction must be done by personnel trained for this type of work.

  • Page 25: Note The Sensor Id Number

    PC software as described in section 5 of this manual. Revert to ABB if any error codes occur during measurement or transfer.

  • Page 26: Installation Of Sensor Alternative

    Mount EXCOUNT-II (3) on surge arrester´s bottom flange (4) above insula- ting base (5) according to figure 3.3.1. Do not place close to venting duct (if any). Bolt joint (1) and (2) is supplied with ABB insulating base (5). Fitting and tightening torque according to instructions supplied with insulating base.

  • Page 27: Installation Of Sensor Alternative

    3. Sensor installation 3.5 Installation of sensor alternative 2 Figure 3.5.2 Back view Connect to earth terminal on surge arrester flange Planar surface Min 60 mm to ground plane Antenna area, min distance to groundplane: Connect to earth 60 mm Figure 3.5.1 Figure 3.5.3 Side view...

  • Page 28: Installation Of Sensor Alternative

    3. Sensor installation 3.6 Installation of sensor alternative 3 Figure 3.6.1 Figure 3.6.2 Note! Resistive current measurement may not always be possible with this special application. Assemble the EXCOUNT-II sensor to either the pre-assembled coupling, figure 3.6.1, or to the pre-assembled terminal, figure 3.6.2, as appropriate to the type of PEXLINK transmission line arrester.

  • Page 29: Installation Of Sensor Alternative

    3. Sensor installation 3.7 Installation of sensor alternative 4 Earth cable Figure 3.7.1 Note! Resistive current measurement may not always be possible with this special application. The assembly of the components is generally as per section 3.4 alter- native 1, except that the arrester is intended specifically for inverted mounting.
  • Page 30 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 31: Using The Transceiver

    Using the transceiver Section 4 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 32: Changing The Battery

    Replace it when necessary with type 6LR61/PP3. NOTE! Used batteries should NOT simply be thrown away. Return the battery to a recovery station or leave it with your local ABB representative for environmentally friendly disposal. 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 33: Transceiver Functions

    4. Using the transceiver 4.1 Transceiver functions EXCOUNT-II Figure 4.1.1 Switch the transceiver on/off To turn on the transceiver press To turn off the transceiver press The transceiver turns itself off automatically after 5 minutes. 1HSA 801 080-15en EXCOUNT-II Users Manual...
  • Page 34 4. Using the transceiver 4.1.1 Use of external hand-held antenna A separate hand-held external antenna is available as an option for use in special applications which require greater signal strength than is possible to achieve with the transceiver’s internal antenna. When the external antenna is to be used, the following steps should be followed: a) Remove the protective cover from the external antenna connection...

  • Page 35: Transceiver Symbols

    4. Using the transceiver 4.2 Transceiver symbols Operation performed Stand by successfully A B B Operation performed > > > > > > > Establishing contact un-successfully Active field xxx-yyyy-zzz Sensor ID Data transfer from PC Transfer data to transceiver Data transfer from Read data transceiver to PC...

  • Page 36: Flowchart, Making Measurements

    4. Using the transceiver 4.3 Flowchart, making measurements Press to turn on the transceiver The main menu is accessed by pressing enter 1. Prepare the transceiver 2. Make measurements 3. Transmit data to the for measurements See 5.3 EXCOUNT-II software See 5.1.1 See 5.1.2 Check that the date and time...

  • Page 37: Sychronization Of The Clocks

    4. Using the transceiver 4.4 Sychronization of the clocks Prior to transfering data between the PC and the transceiver, it is important to check that the date and time are sychronized between both of them. See figure 4.1.1 and 4.1.2. If not, set them as described in section 5.4.

  • Page 38: Range Of The Communication

    4. Using the transceiver 4.5 Range of the communication Direct and completely unobstructed line-of-sight is preferable between the transceiver and the sensor during communication. The transceiver can communicate with the sensor within a range of up to 60 meters. However this may differ depending on external factors, including the physical and geographical layout at the site or the presence of radio disturbances in the vicinity.

  • Page 39: Direction Of The Sensor Antenna

    4. Using the transceiver 4.8 Direction of the sensor antenna It may seem logical to be as close as possible to the sensor to obtain the highest signal strength. However, this is not the case since the sensor antenna has a signal direction which is nearly horizontal, see figure 4.8.1 depicting the contact zone.

  • Page 40: Special Configurations

    4. Using the transceiver 4.9 Special configurations If the sensor is located a significant height above the ground, it may be dif- ficult to make contact since it is not practical to be within the contact zone as described in section 4.8. Examples are tall transmission line towers and gantries.
  • Page 41 4. Using the transceiver 4.9.1 Tower and Gantry layout Experience has shown that specific special configurations, arrangements, locations, geography etc can affect the robustness of the performance of EXCOUNT-II. For this reason, it is strongly recommend undertaking a field trial prior to full-scale installation. Since many factors are inter-related, a simple trial made at the base of the transmission tower or gantry may not be adequate to guarantee performance when mounted in service.

  • Page 42: Total Versus Individual Readings

    4. Using the transceiver 4.10 Total versus Individual readings Attempts to make a total reading (available in extended version only) – i.e. consecutively leakage current, surge count, resistive current – may be inappropriate with certain configurations and generate errors, since the information is “in the air”...

  • Page 43: Transceiver Menus

    Transceiver menus Section 5 1HSA 801 080-15en EXCOUNT-II Users Manual...
  • Page 44 5. Transceiver menus Stand by Turn the transceiver on by pressing Turn the transceiver off by pressing Got to the main menu by pressing The transceiver turns itself off automatically after 5 minutes. The program version is shown in the lower left corner. The E 2.0.0 E stands for extended version which includes resistive leakage current measurement.
  • Page 45 5. Transceiver menus 5.1.1 Data transfer from PC to Transceiver In this mode, Sensor ID’s can be transfered from the PC to the transceiver. Connect the data cable between the transceiver and the PC. See also the software help instructions. Back to transfer data menu 5.1.2 Data transfer from Transceiver to PC In this mode data collected from the Sensors can be...
  • Page 46 5. Transceiver menus 5.3 Make measurements Select alternative with the key. Then press Leakage current measurement (see 5.3.1) Read surge counter data (see 5.3.2)  Resistive leakage current measurement (see 5.3.3) Total reading (all of the above see 5.3.4) Back to main meny 5.3.1 Leakage current measurement Select sensor ID to read data from with the Start the reading by pressing...
  • Page 47 5. Transceiver menus 5.3.3 Resistive leakage current measurement Not available in all versions. Select sensor ID to read data from with the key. Start the reading by pressing Before the transmission begins the operating voltage must be given. (see 5.3.3.1) Progress bar Error code A successful transmission is marked with...

  • Page 48: Settings Menu

    5. Transceiver menus 5.3.4 Total reading Not available in all versions. Select sensor ID to read data from with the key. Start the reading by pressing Before the transmission begins, the operating voltage must be given. (see 5.3.3.1) Each reading is made in turn automatically. A successful transmission is marked with A failed transmission is marked with If the transmission was unsuccessful, an error code...
  • Page 49 5. Transceiver menus 5.4.1 Backlight By default backlight is disabled. Enable backlight by pressing Enabled backlight is indicated by instead Disable backlight by pressing Changes are stored in non volatile memory. Back to settings meny 5.4.2 External antenna By default internal antenna is enabled. Enable external antenna by pressing Enabled external antenna is indicated by instead...
  • Page 50 5. Transceiver menus 5.4.3 Set contrast Increase contrast by pressing Decrease contrast by pressing Changes are stored in non volatile memory. Back to settings meny 5.4.4 Set clock and date The cursor highlights which digit to adjust. The cursor is moved to the next digit by pressing the key.

  • Page 51: Surge Arrester Monitoring Theory

    Surge arrester monitoring theory Section 6 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 52: Introduction

    6. Surge arrester monitoring theory 6.1 Introduction The rising demands for improved reliability of power supply and reduced maintenance costs have increased the attention on condi- tion monitoring of equipment in HV substations. As far as metal-oxide surge arresters are concerned, there are two important aspects which are related to the reliability of the arresters: •...
  • Page 53 6. Surge arrester monitoring theory transformer for registration of discharge currents from 10 A and above, see figure 6.2.1. The measured current peak values are sorted into five impulse current ranges and stored in the EXCOUNT-II memory along with the date and time of each impulse.

  • Page 54: Leakage Current Measurements

    6. Surge arrester monitoring theory 6.3 Leakage current measurements Apart from the brief occasions when a surge arrester is functioning as an overvoltage-limiting device, it is expected to behave like an insulator. The insulating properties are essential for the length of life of the arrester and for the operation reliability of the power system.
  • Page 55 6. Surge arrester monitoring theory Figure 6.3.1 Electrical representation of metal-oxide surge arrester in the leakage current region Resistive leakage current The resistive leakage current is defined as the peak value of the resis- tive component of the leakage current, i.e. the instantaneous value of the leakage current when the voltage across the arrester is at its maxi- mum (dU/dt = 0).
  • Page 56 6. Surge arrester monitoring theory The maximum continuous operating voltage of an arrester (the Uc according to IEC, or the MCOV according to ANSI) usually cor- responds to a voltage stress in the range 0,7-0,85 p.u. of the rated voltage. In normal arrester applications, the operating voltage stress usually ranges from 0,5 to 0,8 p.u.
  • Page 57 6. Surge arrester monitoring theory Another source of harmonics in the total leakage current is the har- monic content in the system voltage. The voltage harmonics produce capacitive harmonic currents in the arrester. This is clearly illustrated in figure 6.3.3, showing results from total leakage current measurements on two different arresters in service conditions that are significantly different in terms of system voltage harmonics.
  • Page 58 The principle for measurement of the resistive leakage current with the EXCOUNT-II is the same as for the original leakage current monitor, LCM, developed by ABB Switchgear and TransiNor, and described in detail in [2]. The procedure for total leakage current and field probe current...
  • Page 59 6. Surge arrester monitoring theory The total leakage current is measured by means of the zero-flux current transformer, and the electric field generated by the system voltage is measured in terms of the current induced in the field probe, both shown in figure 6.3.4. The field probe current, see figure 6.3.5, is used to compensate for the harmonic content in the system voltage.
  • Page 60 The information from the arrester manufacturer is given in accordance with IEC 60099-5 [1] for each arrester type. All ABB type arresters are included in the EXCOUNT-II software to allow measurements of resis- tive leakage currents. To be ably to correctly calculate the resistive lea- kage current for non-ABB type of arresters the characteristics of that type must be added to the data base.
  • Page 61 6. Surge arrester monitoring theory • Multipliers for the total resistive leakage current and the resistive third harmonic as functions of voltage stress and ambient tempera- ture. These multipliers are used for converting the actual values of voltage stress and ambient temperature at the time of measurement to standard operating conditions.
  • Page 62 6. Surge arrester monitoring theory Evaluation of resistive leakage current levels By means of the manufacturer information, the resistive leakage current level is determined from the resistive third harmonic current, and the results obtained under the actual operating conditions are converted to the standard operating conditions.

  • Page 63: Radio Transmission Protocol

    Radio transmission protocol Section 7 1HSA 801 080-15en EXCOUNT-II Users Manual...
  • Page 64 7. Radio transmission protocol 7.1 Packet communication protocol All radio channels are subject to noise, intereference and fading. In many cases, radio channels are shared by several users of services. Packet communication protocols are widely used to achieve error-free communi- cations over imperfect and/or shared communication channels.

  • Page 65: Technical Data

    7. Radio transmission protocoll 9. Disposal Technical data Section 8 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 66: Technical Data

    8. Technical data 8.1 Technical data Surge counting Sensor/Transceiver Data Communication Counting threshold 10 A (8/20 µs) AM radio (OOK) 10–99 A Type ETSI and FCC Surge current amp- 100-999 A approved litude classification 1000-4999 A 868.35 MHz or Frequency (8/20 µs) 5000-9999 A 916.50 MHz...
  • Page 67 8. Technical data General Sensor Transceiver External antenna Climatic Sealed, water-tight design, IP67 Weather-proof, IP 54 Weather proof, IP54 conditions (Battery compartment, IP 65) Ambient –50 °C to +60 °C temperature -10 °C to +50 °C -10 °C to +50 °C Operation: –40 °C to +60 °C range Measuring...
  • Page 68 8. Technical data 8.2 Dimensions EXCOUNT-II ID. No: XXXXXXXX Cat. No: 1HSA44X XXX-X Made in Sweden Figure 8.2.1 Sensor Figure 8.2.2 Figure 8.2.3 Sensor External antenna 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 69: Disposal

    Disposal Section 9 1HSA 801 080-15en EXCOUNT-II Users Manual...
  • Page 70 9. Disposal Disposal When the items incorporating EXCOUNT-II are taken out of service, components shall be disposed of according to local regulations. The sensor, transceiver and external antenna contain electronic, metal, rubber and plastic components. The 9V battery in each device must be removed and disposed of separately.

  • Page 71: Transceiver Error Codes

    Transceiver error codes Section 10 1HSA 801 080-15en EXCOUNT-II Users Manual...
  • Page 72 10. Transceiver error codes Error Description Suggested cause and action code System error The transceiver could not perform the requested task. Turn off the transceiver and restart. Attempt with individual readings rather than total reading (if this was the case). If the error persists, a serious inter- nal fault may have occured.
  • Page 73 10. Transceiver error codes Error Description Suggested cause and action code Too low field probe The system voltage is too low to generate suf- current ficient current in the field probe in the sensor. Check that: a) the line is correctly energized. b) the sensor is correctly mounted.
  • Page 74 10. Transceiver error codes Error Description Suggested cause and action code Unstable leakage A stable value for the leakage current cannot current be measured. A likely cause may be an unsta- ble line voltage. Take measurements at another time. The operating voltage for compensation of Operating voltage out of range resistive leakage current measurement is out of...
  • Page 75 10. Transceiver error codes Error Description Suggested cause and action code Transmission buffer The transceiver registred a buffer error. Turn error off the transceiver and restart. Attempt with individual readings rather than total reading (if this was the case). If the error persists, a serious internal fault may have occured.
  • Page 76 1HSA 801 080-15en EXCOUNT-II Users Manual...

  • Page 77: Index

    12. Index Index Section 11 1HSA 801 080-15en EXCOUNT-II Users Manual...
  • Page 78 11. Index Administration 20 Making measurements 36 arrester data 20 Measuring principle 9 sensor data 20 Measurement strategy 42 station data 20 transceiver date/time 21 windows date/time 21 Packet communication protocol 64 Antenna 34, 38, 39 PC 9 Pre-installation 12 Battery 12, 14 battery check 45 Radio transmission protocol 64...
  • Page 79 11. Index Technical data 66, 67 Total reading 48 Transceiver 9 antenna 34, 38 battery check 45 cleaning 32 data transfer 44 date/time 50 error codes 72, 73, 74, 75 functions 33 measurement 46 menus 44 range of the communication 38 sychronization of the clocks 37 symbols 35 1HSA 801 080-15en EXCOUNT-II Users Manual...
  • Page 80 NOTE: ABB AB is working continuously to improve the products. We therefore reserve the right to change designs, dimensions and data without prior notice. ABB AB High Voltage Products Surge Arresters SE-771 80 LUDVIKA, Sweden Phone +46 (0)240 78 20 00 Fax.

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