A thermal tripping device for a surge protector
A technology of surge protector and thermal trip, which is applied in emergency protection devices, components of protection switches, protection switches, etc., can solve problems such as power supply accidents and power short circuits, and achieves low cost, wide application range, and simple structure Effect
Active Publication Date: 2019-04-09
天津协盛科技股份有限公司 +1
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
When used in signal equipment, the maximum discharge current is limited. If the thermal trip cannot be performed at the maximum discharge current, the surge protector will not be able to withstand the lightning current and cause a short circuit of the power supply, resulting in a power supply accident; conventional solutions It is a varistor series connection insurance, but when the series connection insurance capacity is small, it cannot withstand excessive voltage impact; when the series connection insurance capacity is large, the insurance needs a large current to fuse or continue, and it is also easy to cause a short circuit of the power supply and form a power supply ACCIDENT
Another problem is how to notify the management personnel to replace the surge protector in a timely manner after the surge protector fails due to component damage, so as to ensure the normal operation of the protected equipment
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
[0018] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0019] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood ...
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 provides a heat trip device for a surge protective device. The heat trip device comprises a surge protective device body and the heat trip device in the surge protective device body. The heat trip device comprises a heating module, an elastic sheet, a state display element and a window which are fixed in the surge protective device body in sequence from the left to the right. The heating module and the elastic sheet are welded. Two ends of the elastic sheet are fixedly connected with the inner wall of the surge protective device body. According to the heat trip device for the surge protective device, when a high current surges, the surge protective device is tripped from a circuit timely and reliably; the surge protective device is prevented from being damaged by a thunder circuit and overvoltage; when the surge protective device is damaged, a worker is prompted to replace the surge protective device timely; and the heat trip device is more humanized, is simple in structure, low in cost and wide in application range and has generalization performance.
Description
technical field [0001] The invention belongs to the field of surge protectors, in particular to a thermal tripping device of a surge protector. Background technique [0002] In order to prevent the intrusion of lightning current in the power distribution system, a surge protector is usually installed between the transmission line and the electrical equipment. When used in signal equipment, the maximum discharge current is limited. If the thermal trip cannot be performed at the maximum discharge current, the surge protector will not be able to withstand the lightning current and cause a short circuit of the power supply, resulting in a power supply accident; conventional solutions It is a varistor series connection insurance, but when the insurance capacity of the series connection is small, it cannot withstand excessive voltage impact; when the insurance capacity of the series connection is large, the insurance needs a large current to fuse or continue, and it is also easy t...
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 Patent Type & Authority Patents(China)
IPC IPC(8): H01H71/20H01H71/04
CPCH01H71/04H01H71/20H01H2071/042
Inventor 刘轶超李宏刚关磊张国栋张莹刘卓辉王斌晓汤尧
Owner 天津协盛科技股份有限公司