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Application filed by Венелин ЯКОВ, Иван ЕвстатиевfiledCriticalВенелин ЯКОВ
Priority to BG100123ApriorityCriticalpatent/BG100123A/en
Publication of BG100123ApublicationCriticalpatent/BG100123A/en
The device is used in electrical drives of mechanisms used in industry and agriculture. It improves the use of the motor power and the reliability of the electrical drive as a whole by means of controlling the lack of matching of the line current and phase voltage and modelling of the heat condition of the motor in symmetrical mode of supply and in the mode of "dropping of a phase". The device consists of a current sensor, voltage sensor, peak detector, scaling amplifier, R-C group, comparator, AND logical element, logical signals shaper, "different pole" logical element, intermediate relay and magnetic starter.
BG100123A1995-11-081995-11-08Device for the protection of a three-phase asynchronous motor
BG100123A
(en)