Title: Protective device for capacitor bank

Abstract: A protective device for a capacitor bank is coupled to a cross-connection between equipotential points in two sub-banks forming the bank. Current or voltage surges, indicative of a capacitor failure are counted and when a threshold level is exceeded, an alarm may be energized.

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Inventors: Danfors, Per (Ludvika, SE)
Fahlen, Nils (Vesteras, SE)
Nerf, Owe (Farsta, SE)

Application Number: 882689
Filing Date: 1978-03-02
Publication_date: 1980-08-26
Assignee: ASEA Aktiebolag (Vesteras, SE)
Primary Class(es): 361/15 361/17, 361/111
Other Classes:
US Patent Ref:

2942153	Jun, 1960	Schultz et al.	361/17.
3143687	Aug, 1964	Hjertberg et al.	361/16.
3158783	Nov, 1964	Minder	361/17.
3181031	Apr, 1965	Yee	361/17.
3375341	Mar, 1968	Richards	361/72.
3499165	Mar, 1970	Madzarevic et al.	361/56.
3909672	Sep, 1975	Lundquist et al.	361/17.
3935512	Jan, 1976	Falk et al.	361/110.
4084204	Apr, 1978	Jacobu, Jr.	361/72.
4090226	May, 1978	Fahlen et al.	361/89.

Other Refs:
Primary Examiner: Salce, Patrick R.
Assistant Examiner:
Attorney: Pollock, Vande Sande & Priddy