Analysis of an incident on an installed capacitor bank, reactive compensation and harmonic analysis

The customer wished to understand the causes of a fault observed on the output of a 15 kV capacitor bank which had caused its removal from service. It also wanted CAPSIM to carry out a reactive compensation study to avoid additional invoicing from its energy supplier. [...]

Harmonic study, capacitor bank switching analysis and Transient Recovery Voltage calculations

The project consists in the construction of a 52MW PV power station in the near future in Israel. This PV power station will be connected to the 161kV HV electrical grid of the country.

In this context, CAPSIM was chosen in order to perform the following analyses on the future PV station:

Verification of the harmonic levels produced by the PV + inverters at the connection point in the different possible network configurations of the future installation,
Observation of the impact of the capacitor bank switching (in terms of overvoltage and switching current) on the future PV installation and on the equipment,
Study of TRVs (transient recovery voltage) across the circuit breakers during normal operations and following faults such as short-circuits.

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