Stator string symmetric resistor reversible reversal connection brake control circuit
A technology of reverse braking and control lines, applied in the electrical field, can solve problems such as asymmetry, poor braking effect, and irreversibility
Inactive Publication Date: 2017-07-11
ANHUI JIUNENG INFORMATION TECH
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Abstract
The invention relates to a stator series symmetrical resistance reversible and reverse braking control circuit, which belongs to the field of electric technology, and includes a three-phase power supply, a fuse group, a contactor circuit, a current-limiting resistance circuit, a thermal relay group, and a three-phase asynchronous motor M circuit. It is characterized in that: the three-phase power supply is connected to three knife switches Q through three incoming lines, the three knife switches Q are connected in series with three fuses FR in the fuse group, and the fuse group is connected to the current-limiting resistance circuit The contactor circuit, the input end and the output end of the thermal relay group are respectively connected with the output ends of the three main lines in the current limiting resistance circuit and the three phases of the M circuit of the three-phase asynchronous motor. Adopting the reversible reverse connection braking control circuit designed by the present invention can solve technical problems such as asymmetry, irreversibility, poor braking effect and the like existing in the existing reversible reverse connection braking control circuit technology.
Application Domain
Ac motor stoppers
Technology Topic
ContactorCurrent limiting +9
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