Switchgear incorporating an active filter
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United States of America Patent
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Jul 30, 1996
Grant Date -
N/A
app pub date -
Dec 5, 1994
filing date -
Dec 5, 1994
priority date (Note) -
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status (Latency Note)
Importance
Abstract
An active filter device is provided for incorporation into a switchgear lineup. The switchgear lineup has a plurality of electrical sections including a main circuit breaker section and a load circuit breaker section spaced from the main circuit breaker section. The active filter device is applied as an integral part of the power distribution switchgear equipment, positioned between the main circuit breaker section and a load circuit breaker section. From a single location, power quality is improved for the aggregate of all loads connected to the switchgear and the upstream source. The power quality improvement may include harmonic current attenuation, harmonic voltage attenuation, load balancing, high speed power factor correction, and reduced magnitude voltage sags.
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