Substation remote control loop safety check device

Abstract

The present invention belongs to the substation remote control loop technical field and relates to a substation remote control loop safety check device. The device comprises a measurement and control module; the measurement and control module includes a remote control common end, a remote control switching-on end and a remote control switching-off end; the remote control common end is connected with the switching-on common end of a loop to be checked; the remote control switching-on end is connected with the switching-on end and of the loop to be checked; the remote control switching-off end is connected with the switching-off end of the loop to be checked; the safety check device further comprises an alarm device; the alarm device includes a circuit safety indication lamp LED3; and the remote control common end, the remote control switching-on end and the remote control switching-off end are connected in parallel and then are connected with the alarm device. With the alarm device adopted, electric shock accidents which occur when the loop is checked can be avoided.

Description

technical field [0001] The invention relates to the technical field of substation remote control circuits, and more specifically, to a safety acceptance device for substation remote control circuits. Background technique [0002] With the advancement of the integration of power grid regulation and control, the remote control function of the dispatching automation system is generally used for the switch switch operation of the substation, that is, the remote control command of the substation receives the remote control command from the dispatching master station, and the remote control command is forwarded by the remote control device to the corresponding measurement and control device. command, the measurement and control device activates the corresponding remote control relay after receiving the remote control command, and realizes the control of the remote control loop through the action of the remote control relay. Such as figure 1 Shown: When the measurement and control...

AI Technical Summary

Problems solved by technology

[0003] The main problems of using the above two methods of acceptance are: 1. When using the two methods for acceptance, it is impossible to detect whether the remote control circuit is live during the acceptance process, which has potential safety hazards; 2. When using a multimeter to measure on-off, due to the After the remote control relay operates, the node remains for 120ms to 400ms. In such a short period of time, the acceptance personnel are often unable to judge whether the remote control is successful, and need to do multiple remote control acceptance operations to confirm, and the work efficiency is low; 3. The analog circuit breaker is relatively small Large, requires an external power supply, complex wiring during use, and is inconvenient to move and use on site

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