An electronic anti-jump and opening and closing monitoring device for power distribution terminals

Abstract

The invention discloses an electronic anti-tripping, opening, and closing monitoring device of a distribution terminal. An operating power supply is connected with an operating power supply protection module; and a signal indication transmission module is arranged between a signal power supply and a signal acquisition unit. A closing monitoring module and a tripping prevention module are arranged between a closing relay and a switch closing unit; an opening monitoring module is arranged between an opening relay and a switch opening unit; a first anti-tripping monitoring module is arranged between the closing relay and the opening relay; and a second anti-tripping monitoring module is arranged between the tripping prevention module and the operating power supply. Compared with the traditional relay type anti-tripping, opening, and closing monitoring device, the provided electronic anti-tripping, opening, and closing monitoring device employing the electronic component as a core device has advantages of small size, large operating power supply voltage range, and high electromagnetic compatibility protection capability and the like. In addition, the tripping prevention function of the distribution terminal can be realized by using the opening and closing loops of the distribution terminal directly without the need to add an auxiliary contact of a switch body; and the function of the anti-tripping loop for in-service and out-of-service software is also realized.

Description

technical field [0001] The invention belongs to the application field of control and monitoring of power distribution terminal operating power circuits, and in particular relates to an electronic anti-jump and opening and closing monitoring device of a power distribution terminal. Background technique [0002] Switch anti-jumping and opening and closing monitoring technologies have been widely used in microcomputer protection devices, but are rarely used in 10kV power distribution terminals. The existing anti-jump and opening and closing monitoring technologies are generally based on relays to realize anti-jumping and opening and closing monitoring. The relay-based technology has a large device size and even requires a special anti-jumping relay. In addition, the existing anti-jump and opening and closing monitoring technology is limited by factors such as the operating range and impedance of the relay, and there are also shortcomings such as a small operating range of the o...

Images