Uninterruptible ac power supply

Details Uninterruptible ac power supply Uninterruptible ac power supply

1984-02-24

1985-12-03

Pellinen, A. D.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

307 87, H02J 906

Patent

active

045568022

ABSTRACT:
An uninterruptible ac power supply permits parallel operation between a commercial ac line and an inverter unit, greatly simplifies the monitoring of the commercial ac line and minimizes the transient of output voltage during the switching of mode. The uninterruptible ac power supply is comprised of an iron core divided with magnetic shunts into three sections and has an output winding, a winding for a commercial ac line and a winding for an inverter unit, one each wound on the aforementioned three sections of the iron core, the said three windings so disposed that the output winding is wound on one terminal section and the windings for the commercial ac line and the inverter unit are wound on the remaining two sections.

REFERENCES:
patent: 4010381 (1977-03-01), Fickenscher et al.
patent: 4238691 (1980-12-01), Ebert, Jr.
patent: 4241261 (1980-12-01), Ebert, Jr.
patent: 4475047 (1984-10-01), Ebert, Jr.
patent: 4510401 (1985-04-01), Legoult
R. Rando, "Preliminary Report for International Telephone Energy Conference 1978 at Washington".

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