Ground linkage device for fuse and switchgear using the device
A technology for grounding switches and fuses, applied in electrical switches, electrical components, circuits, etc., can solve problems such as residual charge, and achieve the effect of releasing residual charge, simple structure, and meeting the needs of use
Active Publication Date: 2019-04-12
PINGGAO GRP +2
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- Application Information
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Problems solved by technology
At this time, although the three-position switch has been grounded, there may be residual charges on the surface of insulating components such as fuses and outgoing cables. A grounding linkage device capable of grounding a fuse while grounding a three-position switch
Method used
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[0023] An example of a switchgear is Figure 1~Figure 5 As shown, the switch cabinet is a solid insulated ring network cabinet, including a cabinet body, and a load switch (not shown in the figure), a three-position switch (not shown in the figure), a fuse 102, and a In order to realize the operating mechanism 9 of the three-position switch closing, opening and grounding, the fuse 102 is fixed on the side wall of the cabinet through the fixing plate 101, and a grounding device for the fuse is provided between the operating mechanism 9 and the fuse 102. linkage.
[0024] The ground linkage device for fuses includes a linkage rod 1 extending in the up and down direction after installation. The upper end of the linkage rod 1 is provided with a matching structure that matches the cam 91 in the operating mechanism 9. In this embodiment, the end of the linkage rod 1 A connecting shaft 2 arranged perpendicular to the linkage rod 1 is connected, and the matching structure is a rotati...
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The invention provides a grounding linkage device for a fuse protector and a switch cabinet employing the same. The grounding linkage device for the fuse protector comprises a connecting lever shaft which is provided with an input connecting lever and an output connecting lever, the output connecting lever is provided with a connection structure, swinging movement of the output connecting level can be converted into linear movement of a fuser protector grounding switch, an interlocking bar is hinged on the input connecting lever, a matching structure is arranged on the interlocking bar, the matching structure and a cam of a three work station switch operation mechanism form an extruding fit, the interlocking bar can be driven to move, and therefore linkage grounding between a corresponding three work station switch and the fuse protector can be realized; the linkage device also comprises an elastic member capable of automatically resetting so as to turn off the fuser protector grounding switch when breaking away from extrusion of the cam. Via the grounding linkage device, the fuser protector can be grounded reliably when that the three work position switch is grounded is ensured; residual charge can be released, safety of overhaul and maintenance workers can be ensured, the whole device is flexible in movement and stable and reliable in performance, and demand of use of the switch cabinet can be met.
Description
technical field [0001] The invention relates to a grounding linkage device for a fuse and a switch cabinet using the device. Background technique [0002] The fuse barrel is an insulating barrel device used to install the fuse in the load switch-fuse combination electrical cabinet, where the fuse plays the role of breaking the fuse when the main circuit is short-circuited, so that the main circuit is disconnected. When the load switch-fuse combined electrical cabinet needs to be powered off, the equipment is overhauled or the outgoing cable or high-voltage current-limiting fuse is replaced, the load switch is first opened, and then the three-position operating mechanism drives the three-position switch to achieve grounding. At this time, although the three-position switch has been grounded, there may be residual charges on the surface of insulating components such as fuses and outgoing cables. The utility model relates to a grounding linkage device capable of realizing grou...
Claims
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IPC IPC(8): H01H9/20
CPCH01H9/20
Inventor 杨欣可王海燕卢健杨芳李小军马明乐李冬胜张永辉
Owner PINGGAO GRP