CN106099442A - A kind of transformer station enclosed busbar bridge ground loop - Google Patents

A kind of transformer station enclosed busbar bridge ground loop Download PDF

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Publication number
CN106099442A
CN106099442A CN201610387063.6A CN201610387063A CN106099442A CN 106099442 A CN106099442 A CN 106099442A CN 201610387063 A CN201610387063 A CN 201610387063A CN 106099442 A CN106099442 A CN 106099442A
Authority
CN
China
Prior art keywords
ground loop
transformer station
connecting shaft
enclosed busbar
screw rod
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201610387063.6A
Other languages
Chinese (zh)
Other versions
CN106099442B (en
Inventor
惠所信
孙庆安
卢岱松
孙自强
鹿海斌
刘鹏
苏华
李庆瑞
徐春霞
李晓刚
黎强
高升涛
邱兆斌
苏庆波
潘守翡
刘振
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Chengwu Power Supply Company State Grid Shandong Electric Power Co Ltd
Heze Power Supply Co of State Grid Shandong Electric Power Co Ltd
Wucheng Power Supply Co of State Grid Shandong Electric Power Co Ltd
Original Assignee
Chengwu Power Supply Company State Grid Shandong Electric Power Co Ltd
Heze Power Supply Co of State Grid Shandong Electric Power Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Chengwu Power Supply Company State Grid Shandong Electric Power Co Ltd, Heze Power Supply Co of State Grid Shandong Electric Power Co Ltd filed Critical Chengwu Power Supply Company State Grid Shandong Electric Power Co Ltd
Priority to CN201610387063.6A priority Critical patent/CN106099442B/en
Publication of CN106099442A publication Critical patent/CN106099442A/en
Application granted granted Critical
Publication of CN106099442B publication Critical patent/CN106099442B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R11/00Individual connecting elements providing two or more spaced connecting locations for conductive members which are, or may be, thereby interconnected, e.g. end pieces for wires or cables supported by the wire or cable and having means for facilitating electrical connection to some other wire, terminal, or conductive member, blocks of binding posts
    • H01R11/11End pieces or tapping pieces for wires, supported by the wire and for facilitating electrical connection to some other wire, terminal or conductive member
    • H01R11/12End pieces terminating in an eye, hook, or fork
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/28Clamped connections, spring connections
    • H01R4/38Clamped connections, spring connections utilising a clamping member acted on by screw or nut
    • H01R4/46Clamping area between two screws placed side by side

Abstract

The present invention relates to electrical network fortune inspection technical field, particularly to a kind of transformer station enclosed busbar bridge ground loop.This transformer station's enclosed busbar bridge ground loop, it is characterized in that: include the bus connecting device of bottom, connecting shaft device above bus connecting device and be fixed on the ground loop above connecting shaft device, two symmetrically placed pedestals it are fixed with on described bus connecting device, bolt hole is had in the middle part of described two pedestals, connecting shaft device is set in bolt hole, described connecting shaft device includes screw rod and the stage clip being arranged on screw rod and nut, stage clip both sides are provided with pad, having upright opening bottom described ground loop, ground loop is fixed on pad by screw rod through upright opening;Present configuration is simple, the raising of power supply reliability reasonable in design, and power off time section shortens, and customer complaint rate will be made significantly to decline.

Description

A kind of transformer station enclosed busbar bridge ground loop
Technical field
The present invention relates to electrical network fortune inspection technical field, particularly to a kind of transformer station enclosed busbar bridge ground loop.
Background technology
Substation bus bar bridge must do sealing treatment, if during this is because bus bridge is exposed, due to toy, outside other The reasons such as thing, air pollution or weather, easily cause the serious accident such as ground connection and phase fault, have a strong impact on the safety fortune of electrical network OK, according to transformer station's lean management and countermeasure, substation bus bar bridge must do sealing treatment with insulation thermoplastic material, and Reserving the position of hanging earthing conductor, outside is with removable special sheath parcel, to reach the purpose that bus bridge is all closed.
When overhaul of the equipments electrical verification and hanging earthing conductor, first have to remove the special insulating sheath of bus bridge, inspection with insulating tool Need after repairing end to be wrapped up by exposed part with special sheath, during maintenance next time, need to live working tools, sheath be removed, so After carry out a series of safety measures such as electrical verification again, charged dismounting sheath does not only has the most certain potential safety hazard, but also to take big The amount repair time.Special insulating sheath, time-consuming merit of taking also to be installed after maintenance, and has the biggest potential safety hazard;Frequently tear open Dress insulating sheath, it is easy to make sheath damage, cause unnecessary economic loss.Shorten power off time, improve overhaul of the equipments effect Rate, it is ensured that power network safety operation is the demand of current good service, but due to the enclosed workshop of substation bus bar bridge, gives Electrical verification, hang the work such as dismounting ground wire and add difficulty, remove, the special insulating sheath of bus bridge is installed significantly has delayed service work Progress.
Summary of the invention
The present invention is in order to make up the defect of prior art, it is provided that one does not destroy former bus structure, shorten peace arrange the time, Improve transformer station's enclosed busbar bridge ground loop of overhaul efficiency.
The present invention is achieved through the following technical solutions:
A kind of transformer station enclosed busbar bridge ground loop, it is characterised in that: include the bus connecting device of bottom, bus connecting device Top connecting shaft device and be fixed on the ground loop above connecting shaft device, described bus connecting device is fixed with two Symmetrically placed pedestal, has bolt hole in the middle part of described two pedestals, sets connecting shaft device, described connecting shaft device bag in bolt hole Including screw rod and the stage clip being arranged on screw rod and nut, stage clip both sides are provided with pad, have vertical bottom described ground loop Hole, ground loop is fixed on pad by screw rod through upright opening.
Described bus connecting device is by connecting plate and is positioned at the pressing plate above connecting plate and forms, and described connecting plate leads to pressing plate The bolt crossing two ends is formed by connecting, and described connecting plate is identical with pressing plate specification, is long 130mm, wide 30mm, and thickness is 4mm's Copper sheet material, bus is fixed in the middle of connecting plate and pressing plate.
Described pedestal is " L " type, and two pedestals are back to placement.
Described ground loop is formed by copper coin compacting, and ground loop outer cover is equipped with protection set, to meet the anti-demand of arranging of transformer station.
The invention has the beneficial effects as follows: this transformer station's enclosed busbar bridge grounding loop structure is simple, can gather materials on the spot, carry out hands Work makes, and material used derives from transformer station's waste and old material, and cost of manufacture is relatively low, it is simple to makes, install and O&M, after installation not Destroy former bus structure, and meet transformer station's countermeasure, after ground loop is connected with bus, measure with instrument for measuring DC resistance Contact resistance is 0.005 ohm, meets far away earth current transparency, when peace when shortening transforming plant main transformer maintenance is arranged Between, to verify through on-the-spot test, peace arranges the time to be reduced to 17 minutes by original 29.25 minutes, improves work efficiency, utensil performance Stable, safe and reliable, it is simple to popularize in an all-round way in transformer station, improve economic benefit, and won good social benefit.Maintenance Time shortens and means that more electricity is sold rather than these electricity become loss of electricity because of management, technical reason, sells more Many electricity just can bring more economic benefit for enterprise;The raising of power supply reliability, power off time section shortens, will make client The rate of complaints significantly declines.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings.
Accompanying drawing 1 is the main TV structure schematic diagram of transformer station of the present invention enclosed busbar bridge ground loop;
Accompanying drawing 2 is the plan structure schematic diagram of transformer station of the present invention enclosed busbar bridge ground loop;
Accompanying drawing 3 is the right TV structure schematic diagram of transformer station of the present invention enclosed busbar bridge ground loop;
In figure, 1, ground loop, 2, screw rod, 3, pedestal, 4, bolt, 5, pressing plate, 6, stage clip, 7, connecting plate, 8, pad, 9 nuts.
Detailed description of the invention
Accompanying drawing is a kind of specific embodiment of the present invention.As illustrated in the accompanying drawings from 1 to 3, this transformer station's enclosed busbar bridge ground loop, It is characterized in that: include the bus connecting device of bottom, connecting shaft device above bus connecting device and be fixed on connection Ground loop 1 above shaft device, bus connecting device is by connecting plate 7 and is positioned at the pressing plate 5 above connecting plate 7 and forms, described company Fishplate bar 7 is formed by connecting by the bolt 4 at two ends with pressing plate 5, and described connecting plate 7 is identical with pressing plate 5 specification, is long 130mm, wide 30mm, thickness is the copper sheet material of 4mm, and bus is fixed in the middle of connecting plate 7 and pressing plate 5, the pressing plate 5 of described bus connecting device On be fixed with two symmetrically placed " L " profile shaft framves 3, have bolt hole in the middle part of described two pedestals 3, set in bolt hole connecting shaft dress Putting, described connecting shaft device includes screw rod 2 and the stage clip 6 being arranged on screw rod 2 and nut 9, and stage clip 6 both sides are provided with pad 8, have upright opening bottom described ground loop 1, ground loop 1 is fixed on pad by screw rod 2 through upright opening, and ground loop 1 is by copper Plate compacting forms, and ground loop 1 outer cover is equipped with protection set, to meet the anti-demand of arranging of transformer station.
When the present invention uses, pressing plate 5 and connecting plate 7 being fixed on bus by bolt 4, ground loop 1 is fixed on screw rod 2 On, ensure that contact resistance is within normal range by the pressure of regulation stage clip 6;When ground loop 1 hangs earth lead, half-twist is to perpendicular Straight position, in order to hang earth lead, rotates time properly functioning to horizontal level, takes up room to reduce;Ground loop 1 entirety is by spy Sheath processed is protected, to meet the anti-demand of arranging of transformer station.The pressure connecting 5 is not less than 5KG, and two ends are made a call to two registration holes, passed through bolt Being fixed on bus, described pedestal 3 can bear 50KG pulling force, vertically beats and wear axle fastening ground connection in the middle of circular hole at the 5mm of pedestal 3 Ring 1, the pressure of described stage clip 6 is not less than 5KG, and ground loop 1 and pedestal 3 contact resistance are less than 0.5 ohm, by regulation stage clip 6 Pressure ensure that ground loop 1 rests on any position and do not loosens when rotating, in order to ground loop 1 is installed, reduces contact simultaneously Resistance, ground loop 1 is formed by the crimping of 2*15mm2 copper coin, and upright opening is beaten at two ends, ground loop 1 above exposed 5mm length, with ensure with Grounding body contact area, utilizes instrument for measuring DC resistance test to carry out contact resistance test, and contact resistance is less than 0.5 ohm.
Station, Shandong, 110kV south #1 main transformer, 35kV Bole were stood #2 main transformer and 35kV during in October, 2015-November by the present invention 6 main transformer maintenance processes in autumn such as station, Wenshang #2 main transformer are tested, and related data see table:
From upper table data analysis, it was 16.8 minutes that peace arranges time average, less than desired value 17 minutes.

Claims (4)

1. transformer station's enclosed busbar bridge ground loop, it is characterised in that: including the bus connecting device of bottom, bus connects dress Put the connecting shaft device of top and be fixed on the ground loop (1) above connecting shaft device, fixing on described bus connecting device Having two symmetrically placed pedestals (3), described two pedestals (3) middle part has bolt hole, sets connecting shaft device in bolt hole, described Connecting shaft device includes screw rod (2) and the stage clip (6) being arranged on screw rod (2) and nut (9), and stage clip (6) both sides are provided with Pad (8), described ground loop (1) bottom has upright opening, and ground loop (1) is fixed on pad by screw rod (2) through upright opening.
Transformer station the most according to claim 1 enclosed busbar bridge ground loop, it is characterised in that: described bus connecting device by Connecting plate (7) and be positioned at pressing plate (5) composition of connecting plate (7) top, described connecting plate (7) and the pressing plate (5) spiral shell by two ends Bolt (4) is formed by connecting, and described connecting plate (7) is identical with pressing plate (5) specification.
Transformer station the most according to claim 1 enclosed busbar bridge ground loop, it is characterised in that: described pedestal (3) is " L " Type, two pedestals (3) are back to placement.
Transformer station the most according to claim 1 enclosed busbar bridge ground loop, it is characterised in that: described ground loop (1) is by copper Plate compacting forms, and ground loop (1) outer cover is equipped with protection set.
CN201610387063.6A 2016-06-04 2016-06-04 A kind of substation's enclosed busbar bridge ground loop Active CN106099442B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610387063.6A CN106099442B (en) 2016-06-04 2016-06-04 A kind of substation's enclosed busbar bridge ground loop

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610387063.6A CN106099442B (en) 2016-06-04 2016-06-04 A kind of substation's enclosed busbar bridge ground loop

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CN106099442A true CN106099442A (en) 2016-11-09
CN106099442B CN106099442B (en) 2018-08-07

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109066113A (en) * 2018-07-19 2018-12-21 华翔翔能电气股份有限公司 A kind of substation's enclosed busbar bridge ground loop
CN112164905A (en) * 2020-09-28 2021-01-01 广东电网有限责任公司佛山供电局 Transformer-low grounding pendant for preventing small animals

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936640A1 (en) * 1999-08-04 2001-02-15 Eads Airbus Gmbh Electrical ground connection between aerodynamic control member movable on bearing and structure carrying bearing in aircraft, comprises sliding contact e.g. using carbon brush or rings
CN202352852U (en) * 2011-12-03 2012-07-25 嵊州市电力公司 Grounding device with support insulator
CN203242776U (en) * 2013-05-17 2013-10-16 国家电网公司 10kV insulation-piercing electricity-testing grounding ring
CN203398646U (en) * 2013-08-14 2014-01-15 合肥天海电气技术有限公司 Grounding ring capable of being adjusted in torsional mode
CN203481420U (en) * 2013-09-16 2014-03-12 安徽送变电工程公司 Grounding wire device used for power transmission line overhauling

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19936640A1 (en) * 1999-08-04 2001-02-15 Eads Airbus Gmbh Electrical ground connection between aerodynamic control member movable on bearing and structure carrying bearing in aircraft, comprises sliding contact e.g. using carbon brush or rings
CN202352852U (en) * 2011-12-03 2012-07-25 嵊州市电力公司 Grounding device with support insulator
CN203242776U (en) * 2013-05-17 2013-10-16 国家电网公司 10kV insulation-piercing electricity-testing grounding ring
CN203398646U (en) * 2013-08-14 2014-01-15 合肥天海电气技术有限公司 Grounding ring capable of being adjusted in torsional mode
CN203481420U (en) * 2013-09-16 2014-03-12 安徽送变电工程公司 Grounding wire device used for power transmission line overhauling

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109066113A (en) * 2018-07-19 2018-12-21 华翔翔能电气股份有限公司 A kind of substation's enclosed busbar bridge ground loop
CN112164905A (en) * 2020-09-28 2021-01-01 广东电网有限责任公司佛山供电局 Transformer-low grounding pendant for preventing small animals

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