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A circuit breaker and its operating device

A technology for operating devices and circuit breakers, which is applied in the direction of protective switch operation/release mechanisms and contact drive mechanisms, and can solve the problems of time-consuming and laborious assembly and commissioning of circuit breakers, narrow assembly space for operating mechanisms and transmission devices, and limited operating space, etc. problem, to achieve the effect of convenient assembly and debugging

Active Publication Date: 2017-11-28
TIANJIN PINGGAO INTELLIGENT ELECTRIC +2
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The existing operating mechanism and transmission device are installed together in the frame of the fixed operation box, and the operation box is installed and fixed on the bottom of the frame. Although this arrangement structure is compact, it also makes the assembly space of the operating mechanism and transmission device narrow. During the assembly and commissioning of the circuit breaker, the reserved operating space in the frame is limited, which makes the assembly and commissioning of the circuit breaker time-consuming and laborious

Method used

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  • A circuit breaker and its operating device
  • A circuit breaker and its operating device

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Embodiment Construction

[0019] The embodiment of circuit breaker in the present invention: as figure 1 and figure 2 As shown, the circuit breaker is a vacuum circuit breaker for an inflatable cabinet, including a frame and a main circuit 1 assembled on it, and an operating device. There are three main circuits 1, and the three main circuits 1 are vertically fixed in parallel and spaced On one side of the sealing plate 3 of the frame, the operating device is assembled on the other side of the sealing plate 3 .

[0020] The main circuit 1 is the same as the traditional three-phase vacuum circuit breaker, including a housing fixed on the sealing plate 3 and a pull rod guided and mounted on the sealing plate 3 along the direction perpendicular to the sealing plate 3, one end of the pull rod extends into the housing, The other end is the input end connected to the output end of the operating device.

[0021] The operating device includes a frame 2 fixed on the surface of the sealing plate 3, an operati...

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Abstract

The present invention discloses a circuit breaker and an operating device thereof. The operating device comprises a frame as well as an operating mechanism and a transmission apparatus which are assembled on the frame; the operating mechanism comprises a main body part and an output spindle which is in transmission connection to the main body part and is used for outputting an operating force; the output spindle is rotationally assembled on the frame; three output parts separately connected to an input part of the transmission apparatus are axially formed at intervals on the output spindle; and the output part at at least one end of the output spindle is positioned outside the frame. At least one end of the output spindle extends out of the frame and by improving an arrangement mode of the operating device, a space for the extending end of the output spindle to be connected with the transmission is reserved outside the frame, so that the space for the output spindle to be connected with the transmission does not need to be restrained in the frame, and thus, a mounting space of the operating mechanism and the transmission apparatus is enlarged and the operating device can be conveniently assembled and debugged.

Description

technical field [0001] The invention relates to a circuit breaker and its operating device. Background technique [0002] At present, as the size of medium-voltage gas-insulated metal-enclosed switchgear (hereinafter referred to as gas cabinet) is greatly reduced, its application prospects in the medium-voltage power distribution market are also greatly improved. The circuit breaker plays a vital role as the control and protection element of this equipment. Vacuum circuit breakers are generally composed of three main components: operating mechanism, transmission device and main circuit. The main circuit is mainly composed of three relatively independently arranged main circuits. The bottoms of the three main circuits are fixed on the frame and connected to the output shaft of the operating mechanism through the transmission device. The existing operating mechanism and transmission device are installed together in the frame of the fixed operation box, and the operation box ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/10H01H3/46
CPCH01H3/46H01H71/10
Inventor 王小焕李建兵闵伟孙立强刘秉杰李二肖卫浩远郭国领葛媛媛
Owner TIANJIN PINGGAO INTELLIGENT ELECTRIC
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