Switch cabinet and interlocking mechanism of disconnecting switch and breaker of switch cabinet
A technology of isolating switches and interlocking mechanisms, applied in the direction of electric switches, circuits, electrical components, etc., can solve the problem that the closing coil is easy to be burned, and achieve the effect of preventing burning and avoiding burning
Active Publication Date: 2018-03-09
HENAN SENYUAN ELECTRIC CO LTD
View PDF12 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to provide an interlock mechanism between a disconnector and a circuit breaker to solve the problem in the prior art that the closing coil in the operating mechanism is driven by misoperation when the circuit breaker is opened, causing the closing coil to be easily burned ; Also provide a switchgear using the interlock mechanism of the isolating switch and the circuit breaker
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0024] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0025] The specific embodiment of switchgear of the present invention, as Figure 1 to Figure 2 As shown, the switchgear includes an isolating switch 1 and a fixed circuit breaker 9. Since the isolating switch 1 does not have the function of switching live lines, it can only play the role of forming an obvious isolating fracture. When in use, it is required that when both the circuit breaker 9 and the isolating switch 1 are in the closed state, the isolating switch 1 cannot be opened first, and can only be opened after the circuit breaker 9 is opened; In the off state, the circuit breaker 9 cannot be closed first, and can only be closed after the isolating switch 1 is closed. Therefore, a set of interlocking mechanisms is required to ensure the opening and closing sequence of circuit breakers and isolating switches. At the same time, the operating mech...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention relates to a switch cabinet and an interlocking mechanism of a disconnecting switch and a breaker of the switch cabinet in order to solve the problems that in prior art, during brake separation of breakers, since closing coils in operation mechanisms are driven due to misoperation, the closing coils are likely to be burnt down. The interlocking mechanism includes an interlocking transmission structure and an electrical interlocking mechanism; the interlocking transmission structure is used for being distributed between a manual operation shaft of the disconnecting switch and a switch-on shaft of the breaker to lock the switch-on shaft when the manual operation shaft is located at a disconnection position, and for unlocking the switch-on shaft when the manual operation shaft is located at a working position; the electrical interlocking structure includes a travel switch for controlling switch-on and switch-off of a circuit where a closing coil of the breaker is located. The interlocking transmission structure is provided with a trigger component which is used for triggering the travel switch to control the circuit where the closing coil is positioned to be switched offwhen the manual operation shaft is located at the disconnection position, and triggering the travel switch to control the closing coil to be switched on when the manual operation shaft is located atthe working position.
Description
technical field [0001] The invention relates to a switch cabinet and an interlocking mechanism of a disconnect switch and a circuit breaker. Background technique [0002] In the 7.2-12kV switchgear, the power operation regulations require that the interlock between the isolating switch and the circuit breaker must be realized. That is, when the circuit breaker and the isolating switch are both in the closed state, the isolating switch cannot be opened first. The circuit breaker can only be opened after it is opened; when both the circuit breaker and the isolating switch are in the open state, the circuit breaker cannot be closed first, and can only be closed after the isolating switch is closed. In view of the above requirements, when a fixed circuit breaker is used in the prior art, such as a VS1 vacuum circuit breaker, the mechanical locking device in practical engineering applications is connected to the tripping device of the circuit breaker by a steel rope, but in this ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More IPC IPC(8): H01H9/26
CPCH01H9/26
Inventor 张发军杨晓娟孟雪玲
Owner HENAN SENYUAN ELECTRIC CO LTD