High-voltage distribution PT ring main unit
A technology of high-voltage power distribution and ring network cabinets, which is applied in the direction of circuits, electric switches, and electrical components, can solve problems such as difficulty in ensuring the verticality and parallelism of frames, long production cycles for welding, and poor safety and insulation performance, etc., to achieve The structural layout is compact and reasonable, the cost is low, and the effect of preventing misoperation
Active Publication Date: 2013-12-04
ANHUI MINGYUAN POWER EQUIP MFR
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Problems solved by technology
[0003] The traditional high-voltage power distribution PT ring network cabinet is made of angle steel or plate bending and welding, which is easy to cause deformation of the cabinet due to welding, and it is difficult to ensure the verticality and parallelism of the frame. The production cycle required for welding is long, which affects production efficiency. At the same time, the gas released when welding the switch cabinet also pollutes the air environment
[0004] In the field of power distribution, the safety of power consumption of switchgear is the most important. The connection between the existing general high-voltage power distribution PT ring network cabinet and the common compartment type ring network cabinet is connected by conductive insulating pillars, and its safety and insulation performance is relatively poor. And the cabinet door can be opened at will, and the isolation switch is operated when the cabinet door is opened, which may easily cause safety accidents, without a protection system, and the safety is poor
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[0026] The specific implementation manner of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings.
[0027] like Figure 1 to Figure 8 As shown, the high-voltage power distribution PT ring network cabinet includes a cabinet body and components installed in the cabinet body, wherein the cabinet body is assembled by left and right side panels and upper and lower lintels, and the side panels 14 of the cabinet body are made of high The high-strength aluminum-zinc plate is assembled by rivet nuts, 8.8-grade screws and self-tapping screws after being processed and bent by CNC machine tools, which not only reduces the welding workload of the switch cabinet, but also has a very beautiful appearance; Lifting plate 5 is convenient for lifting; components include isolating switch 6, fuse, lightning arrester 11, voltage transformer 9, and fuse is arranged in the cabinet through fuse support 8 to meet the ...
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The invention discloses a high-voltage distribution PT ring main unit comprising a unit body and a device disposed in the unit body. The device comprises a disconnector. A locking device used for locking the disconnector to prevent switching on when a unit door is opened is disposed inside the unit body. The unit body is composed of unit body boards. Through the locking device, misoperation can be prevented effectively, accidents can be reduced and safety of unit operators can be guaranteed; the unit body is assembled with nuts and screws, so that production labor of the ring main unit is reduced, a frame is good in verticality and parallelism, assembly precision is high, and the cost is low.
Description
technical field [0001] The invention relates to the technical field of high-voltage power distribution, in particular to a PT ring network cabinet for high-voltage power distribution. Background technique [0002] With the rapid development of today's social economy, the State Grid has higher and higher requirements for the quality of switchgear and the level of automatic operation of equipment. [0003] The traditional high-voltage power distribution PT ring network cabinet is made of angle steel or plate bending and welding, which is easy to cause deformation of the cabinet due to welding, and it is difficult to ensure the verticality and parallelism of the frame. The production cycle required for welding is long, which affects production efficiency. , At the same time, the gas released when welding the switch cabinet also pollutes the air environment. [0004] In the field of power distribution, the safety of power consumption of switchgear is the most important. The con...
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Inventor 朱海龙
Owner ANHUI MINGYUAN POWER EQUIP MFR