Null line phase anti-misoperation low-voltage isolation switch device

Abstract

The invention discloses a null line phase anti-misoperation low-voltage isolation switch device which comprises a low-voltage isolation base, two low-voltage isolation insulators, a low-voltage isolation supply side wiring terminal, a low-voltage isolation load side wiring terminal, a low-voltage isolation operation moving contact and a lockout structure, wherein the bottom ends of the two low-voltage isolation insulators are fixed on the two sides of the low-voltage isolation base respectively; the low-voltage isolation supply side wiring terminal is fixed at the top end of one low-voltage isolation insulator; the low-voltage isolation load side wiring terminal is fixed at the top end of the other low-voltage isolation insulator; one end of the low-voltage isolation operation moving contact is articulated with the low-voltage isolation load side wiring terminal; the other end of the low-voltage isolation operation moving contact is movably connected with the low-voltage isolation supply side wiring terminal; and the lockout structure is movably arranged at a stroke section, connected with the low-voltage isolation supply side wiring terminal, of the low-voltage isolation operationmoving contact. The device does not influence safe operation of equipment, achieves effective lockout of a null line phase of a low-voltage isolation switch and avoids user equipment burning caused by pulling a null line first during power failure operation.

Description

technical field [0001] The invention relates to the field of modern low-voltage isolating switches, in particular to a low-voltage isolating switch device for preventing misoperation of neutral line phases. Background technique [0002] The existing low-voltage isolating switch is widely used in the power distribution operation of rural power grids. At present, in the power distribution system of rural power grids, there are still low-voltage isolating switches as operation switches for stopping power transmission. The expression of opening or closing the isolating switch fails to clarify which phase of the isolating switch is pulled, which may easily cause the operator to pull the zero line phase first when the power is cut off, resulting in an accident of burning user equipment. The main reason for these problems is that there is no corresponding locking device for the zero line phase of the low-voltage isolation switch, and there is a great hidden danger of misoperation. ...

AI Technical Summary

Problems solved by technology

[0004] In view of the non-blocking device for the neutral phase of the low-voltage isolating switch, manual binding of the zero phase is used in the power distribution operation of the rural power grid, resulting in the need to ascend a height to untie the work before operation, resulting in new operational risks and low work efficiency.

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