Ring main unit earthing and interlocking device
A ring network cabinet and interlocking technology, applied to electrical components, electrical switches, circuits, etc., can solve problems such as insufficient operational flexibility, complex structure, and difficult debugging, and achieve the effects of ingenious structural design, high life, and reliable strength
Active Publication Date: 2018-01-19
JIANGSU NARI POWER ELECTRIC
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Problems solved by technology
[0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a grounding interlocking device of the ring network cabinet to solve the problem that the current ring main unit grounding interlocking device mostly adopts the method of adding plastic flexible wires, which has complex structure, high cost and difficult debugging. Difficulty and lack of operational flexibility
Method used
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[0021] The present invention will be further described below in conjunction with the accompanying drawings. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0022] A grounding interlocking device for a ring network cabinet, comprising a guide mechanism, a door pin bracket assembly for locking the lower door 21, a grounding door pin assembly for locking the lower door 21, and a door pin bracket for limiting the position The door pin bracket limiting device of the assembly, the guide mechanism is fixedly arranged on the side of the lower door, and the door pin bracket assembly and the ground door pin assembly are respectively slidably connected to the guide mechanism.
[0023] Further, the guide mechanism includes a chain bracket 10, a door pin push rod guide sleeve 14, a door pin push rod guide sleeve 2 141 and a grounded door pin push rod guide slee...
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The invention discloses a ring main unit earthing and interlocking device. The ring main unit earthing and interlocking device comprises a guiding mechanism, a door bolt support assembly body, an earthing door bolt assembly body and a door bolt support limiting device, wherein the door bolt support assembly body is used for locking a lower door (21); the earthing door bolt assembly body is used for locking the lower door (21); the door bolt support limiting device is used for limiting the door bolt support assembly body; the guiding mechanism is fixedly arranged on one side of the lower door;and the door bolt support assembly body and the earthing door bolt assembly body are separately slidably connected to the guiding mechanism. The lower door is separately locked by the door bolt support assembly body and the earthing door bolt assembly body, the lower door cannot be opened even if one of the door bolt support assembly body and the earthing door bolt assembly body is opened independently. The ring main unit earthing and interlocking device is skillful in structural design, by clamping of the door bolt support limiting device which is used for limiting the door bolt support assembly body, a function of fixing a door bolt support and resetting a door bolt support is fulfilled, and the stability of the device is improved.
Description
technical field [0001] The invention relates to a grounding interlocking device of a ring network cabinet, which belongs to the technical field of ring network cabinet chain protection. Background technique [0002] At present, with the rapid development of the power grid system, the ring main unit is widely used in urban residential quarters, high-rise buildings, small and medium-sized It has been widely used in buildings, switching stations, and box-type substations. At present, the ring network cabinets with a voltage level of 12kV mainly include SF6 gas-insulated ring network cabinets, air-insulated ring network cabinets, environmentally friendly gas-insulated cabinets and solid-insulated ring network cabinets. Among them, SF6 gas insulated ring network cabinet is the most widely used. As a kind of gas-insulated ring network cabinet, SF6 gas-insulated ring network cabinet seals all live parts and switches in a stainless steel shell, and the inside is filled with SF6 ga...
Claims
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IPC IPC(8): H01H9/22
Inventor 吴登峰李全海赵利生施杰
Owner JIANGSU NARI POWER ELECTRIC