Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1981-12-11
1984-09-11
Levy, Stewart J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324 96, 324158D, 340645, G01R 2500, G01R 3122
Patent
active
044713010
ABSTRACT:
A device for monitoring thyristors of a high-voltage valve comprises thyristor voltage detectors coupled via light guides to a buffer storage unit through a selector. Also provided are an OR gate assembly, an adder, a memory unit, and a comparison unit, which are placed in series and coupled to a control unit. The OR gate assembly is connected to the buffer storage unit which is also coupled to the control unit. A second input of the comparison unit is connected to a second output of the adder, while its output is connected to an indicator signalling the quantity of disabled thyristors and to a unit protecting the high-voltage valve against breakdown. The selector is also connected to an indicator signalling the numbers of disabled thyristors.
REFERENCES:
patent: 3200392 (1965-08-01), Chumakov
patent: 3238520 (1966-03-01), Van Vlodrop
patent: 3461384 (1969-08-01), Bayati et al.
patent: 3794908 (1974-02-01), Lindblom et al.
patent: 4025845 (1977-05-01), Lhommelet et al.
Durov Jury N.
Fomin Nikolai A.
Ivannikova Tamara I.
Lytaev Rem A.
Yanvarev Arkady I.
Levy Stewart J.
Vsesojuzny Elektrotekhnichesky Institut
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