CN105244646A - User-friendly wiring clamp for preventive tests of main transformer in substation - Google Patents

User-friendly wiring clamp for preventive tests of main transformer in substation Download PDF

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Publication number
CN105244646A
CN105244646A CN201510684811.2A CN201510684811A CN105244646A CN 105244646 A CN105244646 A CN 105244646A CN 201510684811 A CN201510684811 A CN 201510684811A CN 105244646 A CN105244646 A CN 105244646A
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CN
China
Prior art keywords
folder
wiring
joint pin
connector
bolt hole
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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
CN201510684811.2A
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Chinese (zh)
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CN105244646B (en
Inventor
巢海铭
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.)
JIANGSU ELECTRIC POWER Co
CHANGZHOU POWER SUPPLY CO JIANGSU PROVINCIAL POWER CORP
State Grid Corp of China SGCC
Original Assignee
JIANGSU ELECTRIC POWER Co
CHANGZHOU POWER SUPPLY CO JIANGSU PROVINCIAL POWER CORP
State Grid Corp of China SGCC
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 JIANGSU ELECTRIC POWER Co, CHANGZHOU POWER SUPPLY CO JIANGSU PROVINCIAL POWER CORP, State Grid Corp of China SGCC filed Critical JIANGSU ELECTRIC POWER Co
Priority to CN201510684811.2A priority Critical patent/CN105244646B/en
Priority to CN201410057971.XA priority patent/CN103840281B/en
Publication of CN105244646A publication Critical patent/CN105244646A/en
Application granted granted Critical
Publication of CN105244646B publication Critical patent/CN105244646B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention provides a user-friendly wiring clamp for preventive tests of a main transformer in a substation. The wiring clamp comprises a first clamping component, a second clamping component, a connecting component, a clamping bolt and two sets of wiring bolts of the same structure; the two ends of the connecting component are fixedly connected with the first clamping component and the second clamping component respectively through the two sets of wiring bolts; the two sets of wiring bolts are used for wiring in detection tests; the clamping bolt is movably arranged on the first clamping component; and a wiring pile head of the main transformer in the substation can be clamped through the clamping bolt and the second clamping component. The wiring clamp of the invention has the advantages of simple structure, low cost, convenient use and high applicability. With the wiring clamp adopted, test time can be effectively saved, and power outage time can be shortened, and labor cost can be saved, and safe security can be improved.

Description

The binding clip of main transformer preventive trial in wield transformer station
The divisional application of the application for a patent for invention that the application is application number is 201410057971.X, the applying date, to be February 20, invention and created name in 2014 be the binding clip of main transformer preventive trial " in the transformer station ".
Technical field
The present invention relates to power supply unit checkout gear technical field, be specifically related to the binding clip of main transformer preventive trial in a kind of wield transformer station.
Background technology
In 110kV electric power system, the main transformer in transformer station needs regularly to carry out the operation of power failure preventive trial.The operation of transformer preventive trial comprises the projects such as D.C. resistance test, no-load voltage ratio test, no-load test, load test, loaded switch waveform test, relates to and overlaps seven kinds of supporting binding clips of detection experiment instrument for being connected wire with acquisition testing test data with seven.Binding clip and wire consumption more and use complicated, in process of the test, change that wiring all needs take-up, takes out stitches, messenger wire, these four steps of wiring, about 124 minutes consuming time of wiring stage needs are changed in each test, cause test efficiency low, interruption duration is long, brings unnecessary economy and social loss.And, changing in wire clamp and wiring process frequently, easily the security incidents such as workmen falls from high altitude are occurring, have a strong impact on production safety.Binding clip used at present, not only of a great variety, and and these wiring clamps exist wire clamp flick post-tensioning arc discharge, wire clamp stressed after to get loose the common deficiency such as landing, wire diameter fracture or jaw damage., there is many potential safety hazards in current binding clip used and mode of connection poor reliability, causes error of test data comparatively large, often need duplicate test.
Summary of the invention
The object of the invention is: overcome the deficiencies in the prior art, provide that a kind of structure is simple, cost is lower, easy to use, applicability is strong, effectively can save test duration when using, save human cost and the binding clip of main transformer preventive trial in the wield transformer station of improving safety guarantee.
Technical scheme of the present invention is: the binding clip of main transformer preventive trial in wield transformer station of the present invention, and its design feature is: comprise the first folder, the second folder, connector, grip bolt and connection bolt;
The first above-mentioned folder comprises basic courses department and wiring connecting portion; Basic courses department and wiring connecting portion entirety are cuboid, and basic courses department and wiring connecting portion vertically one are connected; Basic courses department is provided with the through clamping screw keyhole of upward and downward, and the inwall of clamping screw keyhole is provided with internal thread; Wiring connecting portion is provided with cylindrical bore recessed from bottom to top, as connector spliced eye; The middle and lower part of wiring connecting portion is provided with left and right to through connection bolt hole, and the inwall in connection bolt hole is provided with internal thread; Connector spliced eye is vertical with connection bolt hole to communicate;
Second folder comprises wiring connecting portion and clamping part; Wiring connecting portion entirety is cuboid; Clamping part entirety is substantially L-shaped; Wiring connecting portion is connected with the vertical one of clamping part; Wiring connecting portion is provided with cylindrical bore recessed from the top down, as connector spliced eye; The middle and upper part of wiring connecting portion is provided with left and right to through connection bolt hole, and the inwall in connection bolt hole is provided with internal thread; Connector spliced eye is vertical with connection bolt hole to communicate; The bottom surface of clamping part is curved, upper surface, the left side integral level of clamping part, and its middle is provided with V-type groove recessed down;
Connector comprises the first joint pin, intermediate plate and the second joint pin; First joint pin entirety is cylinder, and the middle part of the first joint pin is provided with left and right to through bolt hole; Intermediate plate is rectangular plate body; The structure of the second joint pin is identical with the structure of the first joint pin; Second joint pin is provided with bolt hole; First joint pin is connected by the vertical one in its lower end and the middle of the upper surface of intermediate plate; Second joint pin is connected by the vertical one of its upper end and the intermediate of the lower surface of intermediate plate, and the first joint pin and the second joint pin are symmetrical arranged at the upper and lower of intermediate plate;
Grip bolt comprises wing screw rod and hexagonal (hexagon)nut; Connection bolt comprises hexagon-headed bolt and wing nut; Connection bolt is provided with 2 identical covers of structure;
First joint pin of above-mentioned connector is plugged in the connector spliced eye of the first folder; Second joint pin of connector is plugged in the connector spliced eye of the second folder; The intermediate plate of connector is interposed between the first folder and the second folder; 1 cover in 2 cover connection bolts screws with wing nut passed the bolt hole of the connection bolt hole of the first folder and the first joint pin of connector from right to left by its hexagon-headed bolt after; Screw with wing nut another 1 cover in 2 cover connection bolts is passed the bolt hole of the connection bolt hole of the second folder and the second joint pin of connector from right to left by its hexagon-headed bolt after; Grip bolt is screwed with hexagonal (hexagon)nut through after the clamping screw keyhole of the first folder by its wing screw rod;
Spacing between the first above-mentioned folder and the right-hand member of the second folder is 110mm;
The basic courses department of above-mentioned the first above-mentioned folder and the inner of wiring connecting portion joint and outer end curved;
The first above-mentioned folder and the second folder are aluminium alloy integral piece; Connector is the integral piece of epoxy resin material.
Further scheme is: above-mentioned connection bolt also comprises hex nut and 2 pieces of pads; 1 cover in 2 above-mentioned cover connection bolts is matched with hex nut, 2 pieces of pads and wing nut through behind the connection bolt hole of the first folder from right to left from right to left successively by its hexagon-headed bolt; Another 1 cover in 2 cover connection bolts is matched with hex nut, 2 pieces of pads and wing nut through behind the connection bolt hole of the second folder from right to left by its hexagon-headed bolt.
The present invention has positive effect: the binding clip of main transformer preventive trial in (1) wield transformer station of the present invention, and structure is simple, and cost is lower, easy to use.(2) binding clip of main transformer preventive trial in wield transformer station of the present invention, effectively can be applicable to the wiring of wiring pile crown of below 110kV transformer high-voltage, middle pressure, low-pressure side during use, applicability is strong.(3) binding clip of main transformer preventive trial in wield transformer station of the present invention, compared with binding clip of the prior art, the situation of duplicate test is made to greatly reduce during use, the time changing wiring significantly declines, can make originally to need the process of the test of 124 minutes to shorten to about 80 minutes, thus increase substantially test efficiency, shorten the power failure detection experiment time, economic and social benefit is larger.(4) binding clip of main transformer preventive trial in wield transformer station of the present invention, compared with the wire clamp of prior art, the wire clamp breakage can effectively avoiding existing wire clamp to exist, jaw dislocation and wire clamp flick the deficiency of arcing electric discharge, effective guarantee test carries out smoothly, and security reliability greatly improves.(5) binding clip of main transformer preventive trial in wield transformer station of the present invention, the staff of main transformer preventive trial in transformer station and operating time can be tapered to 3 people 1.5 hours for two hours by common 5 people, thus effectively save human cost.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention, by the binding post of main transformer clamped when also show use in figure;
Fig. 2 is the structural representation of the first folder in Fig. 1;
Fig. 3 is the left view of Fig. 2;
Fig. 4 is the structural representation of the second folder in Fig. 1;
Fig. 5 is the left view of Fig. 4;
Fig. 6 is the structural representation of the connector in Fig. 1;
Fig. 7 is the vertical view of Fig. 6.
Reference numeral in above-mentioned accompanying drawing is as follows:
First folder 1, basic courses department 11, clamping screw keyhole 11-1, wiring connecting portion 12, connector spliced eye 12-1, connection bolt hole 12-2;
Second folder 2, wiring connecting portion 21, connector spliced eye 21-1, connection bolt hole 21-2; Clamping part 22, V-type groove 22-1,
Connector 3, the first joint pin 31, bolt hole 31-1, intermediate plate 32, the second joint pin 33, bolt hole 33-1,
Grip bolt 4, wing screw rod 41, hexagonal (hexagon)nut 42,
Connection bolt 5, turret head screw rod 51, wing nut 52, hex nut 53, pad 54,
Main transformer binding post 6.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is further detailed explanation.
(embodiment 1)
See Fig. 1, the binding clip of main transformer preventive trial in the wield transformer station of the present embodiment, form primarily of the first folder 1, second folder 2, connector 3, grip bolt 4 and connection bolt 5.
See Fig. 2 and Fig. 3, the first folder 1 is aluminium alloy integral piece.First folder 1 is made up of basic courses department 11 and wiring connecting portion 12.Basic courses department 11 and wiring connecting portion 12 entirety are cuboid, and the vertical one of basic courses department 11 and wiring connecting portion 12 is connected, and the inner of basic courses department 11 and wiring connecting portion 12 joint and outer end curved.Basic courses department 11 is provided with the through clamping screw keyhole 11-1 of upward and downward, and the inwall of clamping screw keyhole 11-1 is provided with internal thread.Wiring connecting portion 12 is provided with cylindrical bore recessed from bottom to top, as connector spliced eye 12-1; The middle and lower part of wiring connecting portion 12 is provided with left and right to through connection bolt hole 12-2, and the inwall of connection bolt hole 12-2 is provided with internal thread.Connector spliced eye 12-1 is vertical with connection bolt hole 12-2 to communicate.
See Fig. 4 and Fig. 5, the second folder 2 is aluminium alloy integral piece.Second folder 2 is integrally made up of wiring connecting portion 21 and clamping part 22.Wiring connecting portion 21 entirety is cuboid; Clamping part 22 entirety is substantially L-shaped; Wiring connecting portion 21 is connected with the vertical one of clamping part 22.Wiring connecting portion 21 is provided with cylindrical bore recessed from the top down, as connector spliced eye 21-1; The middle and upper part of wiring connecting portion 21 is provided with left and right to through connection bolt hole 21-2, and the inwall of connection bolt hole 21-2 is provided with internal thread.Connector spliced eye 21-1 is vertical with connection bolt hole 21-2 to communicate.The bottom surface of clamping part 22 is curved, upper surface, the left side integral level of clamping part 22, and its middle is provided with V-type groove 22-1 recessed down.
See Fig. 6 and Fig. 7, connector 3 is the integral piece of epoxy resin material.Connector 3 is integrally made up of the first joint pin 31, intermediate plate 32 and the second joint pin 33.First joint pin 31 entirety is cylinder, and the middle part of the first joint pin 31 is provided with left and right to through bolt hole 31-1.Intermediate plate 32 is rectangular plate body.The structure of the second joint pin 33 is identical with the structure of the first joint pin 31; Second joint pin 33 is provided with bolt hole 33-1.First joint pin 31 is connected by the vertical one in its lower end and the middle of the upper surface of intermediate plate 32; Second joint pin 33 is connected by the vertical one of its upper end and the intermediate of the lower surface of intermediate plate 32, and the first joint pin 31 and the second joint pin 33 are symmetrical arranged at the upper and lower of intermediate plate 32.
Still see Fig. 1, grip bolt 4 is made up of 1 wing screw rod 41 and a hexagonal (hexagon)nut 42.Adopt the object of hexagonal (hexagon)nut 42 to be to ensure that contact-making surface is the point cantact face on circular arc top, precession pressure large as far as possible when making to rotate wing screw rod 41 focuses on contact-making surface to clamp the main transformer binding post 6 in transformer station.
Connection bolt 5 forms primarily of hexagon-headed bolt 51 and wing nut 52.Preferably, hex nut 53 and 2 pieces of pads 54 are set up.Connection bolt is provided with 2 identical covers of structure.
During installation, the first joint pin 31 of connector 3 is plugged in the connector spliced eye 12-1 of the first folder 1; Second joint pin 33 of connector 3 is plugged in the connector spliced eye 21-1 of the second folder 2; The intermediate plate 32 of connector 3 is interposed between the first folder 1 and the second folder 2; 1 cover in 2 cover connection bolts 5 screws with wing nut 52 passed the bolt hole 31-1 of the connection bolt hole 12-2 of the first folder 1 and the first joint pin 31 of connector 3 from right to left by its hexagon-headed bolt 51 after, is used for the pressure-wire of clamping connection test during use.Screw with wing nut 52 another 1 cover in 2 cover connection bolts 5 is passed the bolt hole 33-1 of the connection bolt hole 21-2 of the second folder 2 and the second joint pin 33 of connector 3 from right to left by its hexagon-headed bolt 51 after, during use, be used for the current line of clamping connection test.Grip bolt 4 is screwed with hexagonal (hexagon)nut 42 through after the clamping screw keyhole 11-1 of the first folder 1 by its wing screw rod 41, matched with the V-type groove 22-1 of the clamping part 22 of the second folder 2 by the lower end of the hexagonal (hexagon)nut 42 of grip bolt 4 during use, main transformer binding post 6 is clamped.
When connection bolt 5 sets up hex nut 53 and 2 pieces of pads 54, during installation, 1 cover in 2 cover connection bolts 5 is matched with hex nut 53,2 pieces of pads 54 and wing nut 52 through after the connection bolt hole 12-2 of the first folder 1 from right to left from right to left successively by its hexagon-headed bolt 51, the pressure-wire tested by clamping connection between 2 pieces of pads 54 during use.Another 1 cover in 2 cover connection bolts 5 is matched with hex nut 53,2 pieces of pads 54 and wing nut 52 through after the connection bolt hole 21-2 of the second folder 2 from right to left by its hexagon-headed bolt 51, the current line tested by clamping connection between 2 pieces of pads 54 during use.
Preferably, during the use of the present embodiment, spacing in transformer station between the first folder 1 of the binding clip of main transformer preventive trial and the right-hand member of the second folder 2 is 110mm, thus effectively can be applicable to the wiring pile crown of all below 110kV transformers in transformer station.
Meanwhile, again in order to ensure enough through-current capabilities of current segment, another contact-making surface is designed to leg-of-mutton concave surface, enlarged contact face, ensures that contact is good.
In sum, the binding clip of main transformer preventive trial in the wield transformer station of the present embodiment, structure is simple, and cost is lower, easy to use; Effectively can be applicable to the wiring of wiring pile crown of below 110kV transformer high-voltage, middle pressure, low-pressure side during use, applicability is strong; Compared with binding clip of the prior art, the situation of duplicate test is made to greatly reduce during use, the time changing wiring significantly declines, can make originally to need the process of the test of 124 minutes to shorten to about 80 minutes, thus increase substantially test efficiency, shorten the power failure detection experiment time, economic and social benefit is larger; Compared with the wire clamp of prior art, the wire clamp breakage can effectively avoiding existing wire clamp to exist, jaw dislocation and wire clamp flick the deficiency of arcing electric discharge, and effective guarantee test carries out smoothly, and security reliability greatly improves; The staff of main transformer preventive trial in transformer station and operating time can be tapered to 3 people 1.5 hours for two hours by common 5 people, thus effectively save human cost.
Above embodiment is the explanation to the specific embodiment of the present invention; but not limitation of the present invention; person skilled in the relevant technique without departing from the spirit and scope of the present invention; can also make various conversion and change and obtain corresponding equivalent technical scheme, therefore all equivalent technical schemes all should be included into scope of patent protection of the present invention.

Claims (1)

1. the binding clip of main transformer preventive trial in wield transformer station, is characterized in that: comprise the first folder (1), the second folder (2), connector (3), grip bolt (4) and connection bolt (5);
Described the first folder (1) comprises basic courses department (11) and wiring connecting portion (12); Basic courses department (11) and wiring connecting portion (12) entirety are cuboid, and basic courses department (11) is connected with the vertical one of wiring connecting portion (12); Basic courses department (11) is provided with the through clamping screw keyhole (11-1) of upward and downward, and the inwall of clamping screw keyhole (11-1) is provided with internal thread; Wiring connecting portion (12) is provided with cylindrical bore recessed from bottom to top, as connector spliced eye (12-1); The middle and lower part of wiring connecting portion (12) is provided with left and right to through connection bolt hole (12-2), and the inwall of connection bolt hole (12-2) is provided with internal thread; Connector spliced eye (12-1) is vertical with connection bolt hole (12-2) to communicate;
Second folder (2) comprises wiring connecting portion (21) and clamping part (22); Wiring connecting portion (21) entirety is cuboid; Clamping part (22) entirety is substantially L-shaped; Wiring connecting portion (21) is connected with the vertical one of clamping part (22); Wiring connecting portion (21) is provided with cylindrical bore recessed from the top down, as connector spliced eye (21-1); The middle and upper part of wiring connecting portion (21) is provided with left and right to through connection bolt hole (21-2), and the inwall of connection bolt hole (21-2) is provided with internal thread; Connector spliced eye (21-1) is vertical with connection bolt hole (21-2) to communicate; The bottom surface of clamping part (22) is curved, upper surface, the left side integral level of clamping part (22), and its middle is provided with V-type groove (22-1) recessed down;
Connector (3) comprises the first joint pin (31), intermediate plate (32) and the second joint pin (33); First joint pin (31) entirety is cylinder, and the middle part of the first joint pin (31) is provided with left and right to through bolt hole (31-1); Intermediate plate (32) is rectangular plate body; The structure of the second joint pin (33) is identical with the structure of the first joint pin (31); Second joint pin (33) is provided with bolt hole (33-1); First joint pin (31) is connected by the vertical one in its lower end and the middle of the upper surface of intermediate plate (32); Second joint pin (33) is connected by the vertical one of its upper end and the intermediate of the lower surface of intermediate plate (32), and the first joint pin (31) and the second joint pin (33) are symmetrical arranged at the upper and lower of intermediate plate (32);
Grip bolt (4) comprises wing screw rod (41) and hexagonal (hexagon)nut (42); Connection bolt (5) comprises hexagon-headed bolt (51) and wing nut (52); Connection bolt (5) is provided with 2 identical covers of structure;
First joint pin (31) of described connector (3) is plugged in the connector spliced eye (12-1) of the first folder (1); Second joint pin (33) of connector (3) is plugged in the connector spliced eye (21-1) of the second folder (2); The intermediate plate (32) of connector (3) is interposed between the first folder (1) and the second folder (2); 1 cover in 2 covers connection bolt (5) is screwed with wing nut (52) through the bolt hole (31-1) of the connection bolt hole (12-2) of the first folder (1) and first joint pin (31) of connector (3) from right to left afterwards by its hexagon-headed bolt (51); Another 1 cover in 2 covers connection bolt (5) is screwed with wing nut (52) through the bolt hole (33-1) of the connection bolt hole (21-2) of the second folder (2) and second joint pin (33) of connector (3) from right to left afterwards by its hexagon-headed bolt (51); Grip bolt (4) is screwed with hexagonal (hexagon)nut (42) afterwards by the clamping screw keyhole (11-1) of its wing screw rod (41) through the first folder (1);
Spacing between described the first folder (1) and the right-hand member of the second folder (2) is 110mm;
The basic courses department (11) of described the first folder (1) and the inner of wiring connecting portion (12) joint and outer end curved;
Described the first folder (1) and the second folder (2) are aluminium alloy integral piece; The integral piece that connector (3) is epoxy resin material.
CN201510684811.2A 2014-02-20 2014-02-20 The binding clip of main transformer preventive trial in the transformer station easily used Active CN105244646B (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN201510684811.2A CN105244646B (en) 2014-02-20 2014-02-20 The binding clip of main transformer preventive trial in the transformer station easily used
CN201410057971.XA CN103840281B (en) 2014-02-20 2014-02-20 The binding clip of main transformer preventive trial in transformer station

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510684811.2A CN105244646B (en) 2014-02-20 2014-02-20 The binding clip of main transformer preventive trial in the transformer station easily used

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201410057971.XA Division CN103840281B (en) 2014-02-20 2014-02-20 The binding clip of main transformer preventive trial in transformer station

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CN105244646A true CN105244646A (en) 2016-01-13
CN105244646B CN105244646B (en) 2017-11-21

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CN201510686479.3A Active CN105244647B (en) 2014-02-20 2014-02-20 The binding clip of main transformer preventive trial in the transformer station of strong applicability
CN201510684811.2A Active CN105244646B (en) 2014-02-20 2014-02-20 The binding clip of main transformer preventive trial in the transformer station easily used
CN201410057971.XA Active CN103840281B (en) 2014-02-20 2014-02-20 The binding clip of main transformer preventive trial in transformer station

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CN105226402B (en) * 2014-06-16 2017-07-28 马春辉 A kind of c-type earth clip
CN106122192B (en) * 2016-07-29 2018-07-24 宁波纺织仪器厂 Built-in aluminium section connecting pieces
CN106990269B (en) * 2017-04-28 2019-09-10 广西电网有限责任公司电力科学研究院 A kind of transformer short-circuit test short-circuit device

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Publication number Publication date
CN105244646B (en) 2017-11-21
CN105244647A (en) 2016-01-13
CN105244647B (en) 2017-07-18
CN103840281B (en) 2016-01-20
CN103840281A (en) 2014-06-04

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