OPGW terminal voltage-limiting device for high voltage transformer substation
A substation and voltage limiting technology, applied in the direction of circuit devices, emergency protection circuit devices, emergency protection circuit devices for limiting overcurrent/overvoltage, etc., can solve problems such as threats to the safe operation of substations, defects in substation optical cables, etc., to achieve The effects of eliminating hidden defects, avoiding cable breakage, and ensuring safe and reliable operation
Inactive Publication Date: 2016-09-14
WUHAN NEW ENERGY TECH DEV
View PDF4 Cites 3 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The technical problem to be solved by the present invention is: In order to solve the problems existing in the above-mentioned background technology, an improved OPGW terminal voltage limiting device of high-voltage substation is provided to solve the problem that the OPGW downcomer used in the current substation is often discharged due to excessive induced voltage Broken strand faults cause defects and hidden dangers to the optical cable lines of substations, directly threatening the safe operation of substations
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
[0017] The present invention is described in further detail now in conjunction with accompanying drawing. These drawings are all simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, so they only show the configurations related to the present invention.
[0018] figure 1 and figure 2 The OPGW terminal voltage limiting device of a high-voltage substation includes a main body 1 of the voltage limiting device, and an insulating support body 2 is set on the main body 1 of the voltage limiting device. The end ball support rod 3, the upper surface of the main body 1 of the pressure limiting device is located on the right side of the insulating support body 2, and the front end ball support rod 4 of L-shaped structure is connected, and the upper end of the rear end ball support rod 3 is connected to the rear end through the rear end ball longitudinal adjustment nut 5 The discharge sphere 6, the top of the front-end...
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 the technical field of electrical equipment safety assist, in particular to an OPGW terminal voltage-limiting device for a high voltage transformer substation. The OPGW terminal voltage-limiting device comprises a voltage-limiting device main body, and an insulating supporting body is sleeved on the voltage-limiting device main body. The OPGW terminal voltage-limiting device for the high voltage transformer substation provided by the invention is arranged on the top of a gantry frame of the high voltage transformer substation, so that safety protection can be provided for OPGW composite cables of the gantry frame from a nearest iron tower to the high voltage transformer substation outside the transformer substation effectively, OPGW optical cables are prevented from being broken by induced electricity caused by lightning stroke, the OPGW terminal voltage-limiting device for the transformer substation is insulated between the OPGW composite cables to the gantry frame, the insulation distance is greater than 320 mm, high voltage induced electricity inside the transformer substation is effectively isolated, and the hidden danger that the high voltage induced electricity inside the transformer substation corrodes the OPGW composite cables to be broken is avoided. The hidden danger of defects for optical cable lines caused by the induced electricity inside the transformer substation is completely eradicated, and reliable guarantee is provided for safe operation of the high voltage transformer substation.
Description
technical field [0001] The invention relates to the technical field of electric equipment safety assistance, in particular to an OPGW terminal voltage limiting device of a high-voltage substation. Background technique [0002] PGW composite cable is also called overhead ground wire composite optical cable. The technology was introduced into China from abroad in the 1990s. With the development and improvement of domestic smart grids, the application of OPGW overhead ground wire composite optical cable has increased. When the OPGW enters the substation from the iron tower, it is led down from the gantry frame (also called a gantry frame, gantry pole, gantry pole, etc.) and connected to the substation. At present, the OPGW terminal downcomer of the gantry structure of the substation does not have a voltage limiting device, and the OPGW optical cable is easily damaged by lightning strikes, and subsequent power outages are required for maintenance, causing great economic losses a...
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 Applications(China)
IPC IPC(8): H02H9/04
CPCH02H9/044
Inventor 余涛罗军董清
Owner WUHAN NEW ENERGY TECH DEV