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
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[0009] The content of the present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0010] The structure diagram of a stator string symmetrical resistance reversible reverse braking control circuit is as follows: figure 1 As shown, a stator series symmetrical resistance reversible reverse braking control circuit includes a three-phase power supply 1, a fuse group 3, a contactor circuit 4, a current limiting resistance circuit 6, a thermal relay group 8, and a three-phase asynchronous motor M The circuit 9 is characterized in that: the three-phase power supply 1 is connected to three knife switches Q10 through three incoming lines 2, the three knife switches Q10 are connected in series with the three fuses FR11 in the fuse group 3, and the fuse group 3 and The contactor circuit 4 is connected between the current-limiting resistance circuits 6, and the input and output terminals of the thermal relay group 8 are re...
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