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

Advances in Surge Arrester Monitoring Technology

PHILIPP RASCHKE

TRIDELTA

Tridelta Meidensha GmbH

Welcome

1 INMR World Congress, October 18-21, 2015

INMR World Congress 2015 „Advances in Surge Arrester Monitoring Technology“

Philipp Raschke, Tridelta Meidensha GmbH

TRIDELTA

Tridelta Meidensha GmbH

Content

2 INMR World Congress, October 18-21, 2015

• 1. Leakage current and impulse current measurement
• 2. Self-sufficient power supply
• 3. Data transfer principle
• 4. Data presentation concept
• 5. Conclusion

TRIDELTA

Tridelta Meidensha GmbH

Leakage current and impulse current measurement

3 INMR World Congress, October 18-21, 2015

• 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

Tridelta Meidensha GmbH

Leakage current and impulse current measurement

4 INMR World Congress, October 18-21, 2015

• Test arrengment for leakage

current measurement

• Measuring circuitry vs. calibrated

Power Analyzer

leakage current

TRIDELTA

Tridelta Meidensha GmbH

Leakage current and impulse current measurement

5 INMR World Congress, October 18-21, 2015

• 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

Tridelta Meidensha GmbH

Leakage current and impulse current measurement

6 INMR World Congress, October 18-21, 2015

• 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

Tridelta Meidensha GmbH

Power supply

7 INMR World Congress, October 18-21, 2015

• 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

Tridelta Meidensha GmbH

Power supply

8 INMR World Congress, October 18-21, 2015

• monitoring system is
• perational after a short time
• battery or sunlight are not

required

• place of installation does not

affect the function

• even interior applications are

possible

TRIDELTA

Tridelta Meidensha GmbH

Data transfer

9 INMR World Congress, October 18-21, 2015

Setup monitoring device

• Select a measuring

interval

• 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

Store data

Data will automatically be transmitted via internet from smartphone to a webportal/database

TRIDELTA

Tridelta Meidensha GmbH

Data presentation concept

10 INMR World Congress, October 18-21, 2015

• Several users
• Data presented

graphically on website

• View data from

everywhere and any time

• Data can be downloaded

in Excel

• Data stored on database
• Access only with

registration/ user data

• No computer software

required

• Correction values

automatically available

• Data completely erasable

by user

TRIDELTA

Tridelta Meidensha GmbH

Data presentation

11 INMR World Congress, October 18-21, 2015

• Graphical presentation of collected

data

• Simultanious consideration of

leakage current and impulse current regarding date/time

TRIDELTA

Tridelta Meidensha GmbH

Conclusion

12 INMR World Congress, October 18-21, 2015

• 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

Tridelta Meidensha GmbH

Thank you for your attention!

13 INMR World Congress, October 18-21, 2015

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