Phase controller

Details Phase controller Phase controller

1985-09-12

1987-03-03

Wong, Peter S.

Electricity: power supply or regulation systems

For phase shift or control

361 77, 307127, G05F 500, H02H 326

Patent

active

046478388

ABSTRACT:
A phase controller of a type consisting of two magnetic contact units, a phase shifting mechanism for a thermal relay, a biasing circuit, a control circuit and a delay circuit, whereby phase shifting by the phase shifting circuit and three-phase currents, in coordination with the biasing effects due to the biasing circuit, alters the peak voltage of the alternating currents flowing past the phase-setting relay, to convert the state of the contacting points so as to incite the magnetic contacts in the phase conversion unit following a change in phase of the three-phase power source, thus maintaining the output end of the power source at a certain phase in a manner convenient and safe enough by all standards.

REFERENCES:
patent: 3727103 (1973-04-01), Finch et al.
patent: 3783354 (1974-01-01), Fletcher et al.
patent: 3875463 (1975-04-01), Reuter et al.
patent: 4021704 (1977-05-01), Norbeck

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