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Focustitle device motor protection BMF-M4

Offer type: salePublished: 01.03.2015
Price:70 UAH
Seller:Petro
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Address:Ukraine, Volyns'ka Oblast', Kovel

Focustitle device motor protection BMF-M4
8-16 Amps.

Device out phase-sensitive protection BMF-M consists of two three-winding transformers, phase detector with cosine the characteristic of the electronic circuit controls the reset and output contact relay. The device controls the amount of current winding the motor and the angle between current and voltage. Each futuremouse the transformer has two primary winding current with a different number coils included counter in different phases of the motor power. It ensures a desired angle of phase shift between the secondary the measured voltages. When the motor on all three the phase angle of the phase shift between the measured voltages close to 900. When the phase angle of the phase shift becomes 0 or 1800, depending on what phase is broken, at the output phase detector current will increase significantly and the output relay will work. With the emergence of technological overload and deceleration modes of the rotor, the motor is switched off with the help of the electronic circuit congestion control. Out phase-sensitive device almost instantly disables the motor when the phase loss and retardation of the rotor, and also, a short circuit in the motor. Thereby excluded unnecessary heating of the motor windings. Reliability of operation when open-phase mode and the retardation of the rotor does not depend on operational factors.