A kind of anti-overvoltage device of substation and substation

Abstract

The invention provides a transformer substation and an overvoltage protection device thereof. The overvoltage protection device of the transformer substation comprises a conductive lead wire, a current sensor, a draft tube, a container, a control valve and a controller, wherein one end of the conductive lead wire is electrically connected with transformer equipment of the transformer substation; the other end of the conductive lead wire is electrically connected with the ground; the current sensor is electrically connected with the conductive lead wire to detect the magnitude of current passing through the conductive lead wire; the draft tube is made of a conductive material; one end of the draft tube is electrically connected with the transformer equipment of the transformer substation; the other end of the draft tube and the ground are arranged at an interval; the container is mounted above the ground, used for storing conductive liquid, and communicated with the draft tube by a connecting tube; the control valve is mounted on the connecting tube to control on-off of the connecting tube; and the controller is electrically connected with the current sensor and the control valve, and controls on or off of the control valve according to a detection result of the current sensor. With the adoption of the arrangement, the discharge velocity of the overvoltage protection device of the transformer substation can be adjusted as required; and the safety of the transformer substation is further improved.

Description

technical field [0001] The invention relates to the technical field of substation overvoltage prevention equipment, in particular to a substation overvoltage prevention device and the substation. Background technique [0002] Existing substations usually have a ground wire connected to the ground to ensure the safety of substation equipment and personal safety. However, when the substation's substation equipment needs to release a large current, the grounding lead needs to carry a large short-circuit current, which will easily cause the substation's substation equipment to fail to release the current in time and cause the substation's substation equipment to be damaged; at the same time The exposed grounding wire is also easily corroded, which further reduces the conductive effect of the grounding wire. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an anti-overvoltage device of a substation that can change the...

AI Technical Summary

Problems solved by technology

However, when the substation's substation equipment needs to release a large current, the grounding lead needs to carry a large short-circuit current, which will easily cause the substation's substation equipment to fail to release the current in time and cause the substation's substation equipment to be damaged; at the same time The exposed grounding wire is also easily corroded, which further reduces the conductive effect of the grounding wire

Images