Double-power-supply incoming line load switch locking device
A load switch and dual power supply technology, applied in the direction of electric switches, circuits, electrical components, etc., can solve the problems affecting the safety of the power supply system, poor reliability, and prone to failure, etc., and achieve the effect of ingenious structure, easy operation, and strong reliability
Active Publication Date: 2015-03-18
广东正超电气有限公司
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Problems solved by technology
[0005] The existing dual-power incoming line load switch locking devices generally use electronic components for interlocking, but the cost of electronic components is high, and their reliability is poor, and they are prone to failure; when the electronic components fail, the interlocking system cannot work normally, that is, There is a possibility that two load switches are closed by mistake at the same time, thus affecting the safety of the power supply system
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[0028] figure 1 , Figure 4 , Figure 5 As shown, the locking device for load switches with dual power supply incoming lines includes a first load switch 1 and a second load switch 2, the first load switch 1 is provided with a first horizontal operating shaft 11, and the first load switch 1 passes through the first horizontal The rotation of the operating shaft 11 realizes closing or opening, as in figure 2 , the first horizontal operating shaft 11 rotates to the opening position, so that the first load switch 1 is in the opening state; and in image 3 , the first horizontal operating axis 11 is relatively figure 2 The state shown is rotated 90° counterclockwise to the closed position, so that the first load switch 1 is in the closed state; similarly, the second load switch 2 is provided with a second horizontal operating shaft 21, and the second load switch 2 passes through the first load switch 2. The rotation of the two horizontal operating shafts 21 realizes switchin...
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A double-power-supply incoming line load switch locking device comprises a first load switch and a second load switch. The first load switch is provided with a first horizontal operation shaft and realizes switch-on or switch-off through the rotation of the first horizontal operation shaft. The second load switch is provided with a second horizontal operation shaft and realizes switch-on or switch-off through the rotation of the second horizontal operation shaft. The double-power-supply incoming line load switch locking device further comprises a first gear, a second gear, a transmission shaft, a first rotating wheel, a second rotating wheel, a middle idler wheel, and a movable swing arm. The first gear is fixed at the tail end of the second horizontal operation shaft and follows the second horizontal operation shaft to rotate. The first gear is meshed with the second gear. The second gear and the second rotating wheel form coaxial fixing connection through the transmission shaft. The first rotating wheel is located right above the second rotating wheel. The middle idler wheel is located between the first rotating wheel and the second rotating wheel and is arranged at the movable end of the movable swing arm. The first rotating wheel is fixed at the tail end of the first horizontal operation shaft. The double-power-supply incoming line load switch locking device is exquisite in structure, simple and convenient to operate, and strong in reliability.
Description
technical field [0001] The invention belongs to the technical field of power distribution equipment, and in particular relates to a locking device for a dual power supply incoming line load switch. Background technique [0002] In order to ensure that the power distribution system can continuously supply power for a long time, a dual-line incoming power supply is usually set up so that when one of the incoming line power supply fails, the other line of standby incoming power supply is used for power supply. The two incoming power supplies need to be equipped with load switches separately, and each load switch is equipped with a horizontal operating shaft, and each load switch realizes closing or opening through the rotation of its respective horizontal operating shaft (rotating around the central axis of the horizontal operating shaft) , when the horizontal operating shaft rotates to the opening position, the corresponding load switch is in the opening state; conversely, whe...
Claims
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IPC IPC(8): H01H9/26
Inventor 吴汉榕庄楚明陈炎亮
Owner 广东正超电气有限公司