Electrical transmission or interconnection systems – Nonlinear reactor systems – Parametrons
Patent
1974-02-22
1976-11-16
Zazworsky, John
Electrical transmission or interconnection systems
Nonlinear reactor systems
Parametrons
307252VA, H03K 1772
Patent
active
039926389
ABSTRACT:
A synchronous switch for alternating circuits or rectified alternating circuits, the operation of which is automatically synchronized on the passage to zero of the load voltage at its terminals. This synchronous switch contains essentially a semi-conductor element selected from thyristors of a particular type and possibly a diode. The semiconductor element comprises two main electrodes and a control electrode. This element can only be triggered at times when the polarity of the control voltage at the gate is the reverse of that of the first main electrode, and once triggered it then remains closed until the load current crossing it is reduced to zero. The main electrodes may be connected to a rectifier bridge to provide an alternating current switch. The main electrodes may also be connected across a diode, and the devices thus formed can be used to interrupt each phase of a polyphase load current.
These synchronous switches are used for the synchonized interruption of load circuits irrespective of the nature of the load (resistive or reactive) or for the control of main switches.
REFERENCES:
patent: 3196330 (1965-07-01), Moyson
patent: 3257566 (1966-06-01), White
patent: 3328606 (1967-06-01), Pinckaers
patent: 3335291 (1967-08-01), Gutzwiller
patent: 3392284 (1968-07-01), Cain
patent: 3450891 (1969-06-01), Riley
patent: 3577010 (1971-05-01), Freyling, Jr. et al.
patent: 3636379 (1972-01-01), Moe et al.
patent: 3648074 (1972-03-01), Nurnberg
patent: 3668422 (1972-06-01), Pascente
patent: 3723769 (1973-03-01), Collins
patent: 3764832 (1973-10-01), Stettner
Silec-Semi-Conducteurs
Zazworsky John
LandOfFree
Synchronous switch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Synchronous switch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Synchronous switch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-672571