Rectifier-inverter and line voltage regulator system

Details Rectifier-inverter and line voltage regulator system Rectifier-inverter and line voltage regulator system

1975-06-09

1976-12-21

Hohauser, Herman J.

Electrical transmission or interconnection systems

Plural supply circuits or sources

Substitute or emergency source

H02J 700

Patent

active

039990770

ABSTRACT:
A constant voltage, constant frequency, uninterruptible a.c. power supply having a line voltage regulator, a rectifier-inverter with an emergency battery power supply and a transfer switch for selectively connecting the line voltage regulator and rectifier-inverter to a load. Under normal conditions, the line voltage regulator and rectifier inverter derive their operating power from the power line and are both connected to the load. If the fault detection system detects a power line fault, it causes the transfer switch to disconnect the line voltage regulator from the load and the rectifier-inverter supplies power to the load from the emergency battery power supply. If the fault detection system detects a rectifier-inverter fault, it causes the transfer switch to disconnect the rectifier-inverter from the load. A synchronization control system regulates the phase of the rectifier-inverter.

REFERENCES:
patent: 3337743 (1967-08-01), Rolfes
patent: 3348060 (1967-10-01), Jamieson

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