Investigation experience due to high number of CVTs failure (Part:1)

Siregar, R.; Setiawan, Achmad

doi:10.1109/cmd.2012.6416212

Cited by 1 publication

(1 citation statement)

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“…Although some authors have reported CVT failures due to ferroresonance incidences, the knowledge remains relatively shallow and unexplained. CVTs are widely used throughout the high‐voltage and extra‐high‐voltage power system to transform line voltages to designated low voltage levels through a sequence of a capacitive potential divider circuit and a step‐down transformer (SDT) . The output signal of a CVT is used for monitoring and controlling the high‐voltage system and as input sources to protective relays to preserve power system stability and minimize damage to equipment.…”

Section: Ferroresonance In Cvtsmentioning

confidence: 99%

A review of ferroresonance in capacitive voltage transformer

Bakar

Khan

Kwang

et al. 2014

IEEJ Transactions Elec Engng

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Ferroresonance incidences in electrical power system have been commonly regarded as unexplained phenomenon, which is not critical for utility engineers. As a result, research conducted in this area is limited and the awareness on ferroresonance is relatively low among utility engineers. However, as the electrical system evolves, its complexity increases in line with the increasing risk of ferroresonance. As a result, this paper provides a consolidated review on the research conducted on ferroresonance to highlight its importance. This paper covers the fundamental inductor-capacitor pair for ferroresonance initiation and the modes of ferroresonance, followed by ferroresonance in capacitive voltage transformer (CVT), constituting its impact, initiation, and suppression techniques. The core focus in this paper is ferroresonance in CVT due to switching events, on which the documented literature is very scarce.

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Section: Ferroresonance In Cvtsmentioning

confidence: 99%