A driving circuit of an atse conversion mechanism

Abstract

Provided is a drive circuit of an ATE conversion mechanism. The output end of the drive circuit is connected with the input end of a rotary mechanism. The drive circuit comprises a control power supply, a capacitor E1, a photoelectric coupler P, a thyristor SC and a direct-current excitation coil CNE. The output end of the control power supply is connected with an anode of the capacitor E1, a cathode of the capacitor E1 is connected with a T1 pole of the thyristor SC, and a T2 pole of the thyristor SC is connected with the input end of the direct-current excitation coil CNE. One end of the output end of the photoelectric coupler P is connected with a G pole of the thyristor SC, and the other end of the output end of the photoelectric coupler P is connected with the T2 pole of the thyristor SC. The input end of the photoelectric coupler P is connected with a control signal input source IN. The characteristics of zero-crossing stopping of the thyristor and counter electromotive force generated instantly after the powered-up direct-current excitation coil is cut off are used, so that external zero flashover of a drive part of an ATSE conversion mechanism is achieved, currents of the direct-current excitation coil are controlled through a control signal, the fault rate of the drive part of a switch is reduced, service life of the switch is greatly prolonged, and meanwhile economic and social benefits are good.

Description

Technical field [0001] The invention involves an ATSE (Automatic Transfer Switching Equipment, which is automatically converts the switching electrical) conversion mechanism, especially the drive circuit of a conversion mechanism that drives ATSE. Background technique [0002] The driver of the existing ATSE, that is, the conversion mechanism of the automatic conversion switch electrical appliance is to power the DC inspirational coil through microcontrol switches and rectifiers to control the switching electrical conversion between the current power supply and the backup power supply.Power supply directly to DC excitation coils after rectification, and after the conversion is in place, the power supply of the DC excitation coil will be cut off by micro -motion."Inspirational" in the inspirational coil means stimulating the meaning.Through the changing current in the coil, there is a magnetic line through the center of the coil. The larger the current, the more magnetic wires, un...

AI Technical Summary

Problems solved by technology

like figure 2 As shown, NA, NN, RA, and RN take the voltages of the common power supply and the backup power supply respectively; Relay and Relay1 are intermediate relay contacts; SW1, SW2, SW3, and SW4 are micro switches; S1 is a rectifier bridge; CNE is a DC excitation Coil; figure 2 The DC excitation coil is energized through the micro switch and the rectifier bridge to control the automatic transfer switch between the normal power supply and the backup power supply. During the conversion process, the contacts inside the micro switch are burned due to arcing, resulting in The automatic transfer switching electrical appliances cannot reliably switch between the normal power supply and the backup power supply, which is a fatal problem of the switch and needs to be solved and improved by those skilled in the art

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