Control cubicle matched with GIS equipment for use
A technology of HSBC control cabinet and equipment is applied in the field of equipment to prevent the malfunction of non-all-phase trip outlet relays in HSBC control cabinets. Preventing misoperation and realizing convenient effects
Inactive Publication Date: 2016-02-10
HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR +2
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AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to provide a control cabinet that can avoid the misoperation of the non-full-phase tripping outlet relay and is used in conjunction with GIS equipment, so as to solve the problem that the non-full-phase tripping outlet relay in the existing collection control cabinet equipment is easily interfered and causes misoperation. moving problem
Method used
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[0017] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0018] Such as figure 2 Shown is the schematic diagram of the control cabinet with the resistance-capacitance network Z in the present invention. It can be seen from the figure that the positive voltage bus bar of the non-full-phase circuit is connected to the incoming line terminals of the auxiliary contacts of the three single-phase circuit breakers in parallel in the control cabinet, and the auxiliary contacts of the three single-phase circuit breakers in parallel The outgoing line end of the auxiliary contact is connected to the incoming line end of the non-full-phase tripping exit relay, and the outgoing line end of the non-full-phase tripping exit relay is connected to the negative busbar of the non-full-phase circuit. A resistance-capacitance network Z is connected in parallel at both ends of the non-full-phase tripping export relay. One end of the r...
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The invention relates to a control cubicle matched with GIS equipment for use. The control cubicle comprises three single-phase breaker auxiliary contacts and a non-full phase tripping outlet relay, wherein the three single-phase breaker auxiliary contacts are connected between a positive electrode and a negative electrode of a non-full phase loop; the three single-phase breaker auxiliary contacts are connected with the non-full phase tripping outlet relay in series after being connected with one another in parallel; and the control cubicle is characterized in that a power consumption element is connected to two ends of the outlet relay in parallel. According to the control cubicle matched with the GIS equipment for use provided by the invention, through the scheme that the power consumption element is connected to two ends of the outlet relay in parallel, the instantaneous power of the reaction of the outlet relay can be improved; and when voltage at two ends of the outlet relay reaches an action value, the power consumed by the relay cannot reach the action power, so that the action is prevented; and maloperation of the relay is effectively prevented.
Description
technical field [0001] The invention relates to a control cabinet used in conjunction with GIS equipment, in particular to a device for preventing misoperation of a non-full-phase trip outlet relay in the control cabinet. Background technique [0002] GIS refers to sulfur hexafluoride closed combination electrical appliances, which have the advantages of compact structure, convenient installation, and no pollution, rain, salt spray and other atmospheric environmental factors. It has been widely used in power systems, especially 63-500KV in the power system. The installation location of the control cabinet used with GIS equipment is generally far away from the main control room. The cable distance from the main control room to the control cabinet is several hundred meters, the cable is long, and the capacitance of the cable core to the ground is large. [0003] Such as figure 1 As shown, PG and NG are the positive and negative poles of the power supply, and the thick line r...
Claims
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IPC IPC(8): H02H7/26H02H9/04
Inventor 徐晓瑞王振刘彦军张书琴董建安吴振杰库敖沛耿飞左彬马江朋张亚垒卢晓武
Owner HENAN PINGZHI HIGH VOLTAGE SWITCHGEAR