Summary
Since desk studies mainly provide a theoretical view, it is interesting to actually measure transients in transmission grids. To get better insights in voltage waveshapes, statistics (of amplitudes, frequency of occurrence and duration) and frequency contents, a transient measurement device has been installed on a 110kV power transformer in the Dutch grid. The outcome can be used to update the current insulation coordination policy of TenneT [1] in the
Read more Read lessNetherlands or may serve as a justification of why the policy is adequately applied.
The measurements will take place over a period of three years, of which the first year has passed. During this year, numerous events have been registered that could be categorized into
(de)energization of the power transformer, single phase short circuit faults and switching of lines and cables. Next to this, a number of events could not (yet) directly be linked to a cause.
They will be further investigated.
A first analysis has been performed on the registered events, to get insight in the occurring overvoltages and form an initial basis for their statistics. The results of this analysis are described in the paper, as well as some future actions.
Additional informations
| Publication type | Session Materials |
|---|---|
| Reference | C4_10305_2026 |
| Publication year | |
| Publisher | CIGRE |
| Country | Netherlands, The |
| Study committees |
|
| File size | 1 MB |
| Price for non member | 30 € |
| Price for member | 30 € |
Authors
TANNEMAAT Imre - TenneT TSO; VELITSIKAKIS Kostas - TenneT TSO; NAUTA Sjoerd - Alliander; MCBRIDE Jim - JMX High Voltage
Keywords
High frequency transients, Online monitoring, Transient overvoltages
