Advances in Surge Arrester Monitoring Technology PHILIPP RASCHKE - PowerPoint PPT Presentation

Advances in Surge Arrester Monitoring Technology PHILIPP RASCHKE

Tridelta Meidensha GmbH Welcome INMR World Congress 2015 „Advances in Surge Arrester Monitoring Technology“ Philipp Raschke, Tridelta Meidensha GmbH TRIDELTA 1 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Content 1. Leakage current and impulse current measurement 2. Self-sufficient power supply 3. Data transfer principle 4. Data presentation concept 5. Conclusion TRIDELTA 2 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Leakage current and impulse current measurement Leakage current and impulse current measurement • for estimating the condition of surge arresters A monitoring device is recording data concerning • leakage current and impulse current as well as date/time of each record Electrical aging results only marginal in increase of • capacitive leakage current; resistive leakage current has to be measured Resistive leakage current can be related to 3rd • harmonic component of total leakage current TRIDELTA 3 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Leakage current and impulse current measurement Test arrengment for leakage • current measurement Measuring circuitry vs. calibrated • Power Analyzer leakage current TRIDELTA 4 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Leakage current and impulse current measurement Very good linearity in peak and resistive leakage current; minimal error • Influence of 3rd harmonic of system voltage is compensated by a field probe according to • IEC 60099-5; Annex D; Method B2 TRIDELTA 5 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Leakage current and impulse current measurement Temperature is measured with each record; influences can be • corrected automatically System voltage has to be entered „by hand“; influence can be • corrected automatically TRIDELTA 6 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Power supply energy efficient design • micropower harvester for • smallest amounts of energy Energy is taken from arrester • leakage current buffering of energy in • capacitor capacitor is charged when • voltage is switched to the arrester TRIDELTA 7 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Power supply monitoring system is • operational after a short time battery or sunlight are not • required place of installation does not • affect the function even interior applications are • possible TRIDELTA 8 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Data transfer Setup monitoring device Store data Select a measuring • Data will automatically be transmitted via internet from interval smartphone to a webportal/database Type in serial number of • arrester (Tridelta) Optional information… • Transfer data to smartphone Put smartphone on NFC transponder pad • Leakage current and impulse current records • transmitted by NFC Single measurement function • Total leakage current and total number of • discharges available immediately TRIDELTA 9 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Data presentation concept Data stored on database • Access only with • registration/ user data No computer software • required Several users • Correction values • Data presented • automatically available graphically on website Data completely erasable • View data from • by user everywhere and any time Data can be downloaded • in Excel TRIDELTA 10 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Data presentation Graphical presentation of collected • data Simultanious consideration of • leakage current and impulse current regarding date/time TRIDELTA 11 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Conclusion Easy to set up • Very accurate measurering results • No sunlight or battery required • Comfortable collection of aquired arrester data by Smartphone • Clear overview of collected data on website • View data everywhere and every time • TRIDELTA 12 INMR World Congress, October 18-21, 2015

Tridelta Meidensha GmbH Thank you for your attention! New monitoring system coming 2016! Meet me at booth M3 & M4 for further questions! M.Sc. Philipp Raschke Tridelta Meidensha GmbH Research & Development pras@tridelta-hermsdorf.de M3 M4 TRIDELTA 13 INMR World Congress, October 18-21, 2015