CN106168642B - Short-circuit wire expansion piece for electrical test of high-voltage power equipment - Google Patents
Short-circuit wire expansion piece for electrical test of high-voltage power equipment Download PDFInfo
- Publication number
- CN106168642B CN106168642B CN201610601221.3A CN201610601221A CN106168642B CN 106168642 B CN106168642 B CN 106168642B CN 201610601221 A CN201610601221 A CN 201610601221A CN 106168642 B CN106168642 B CN 106168642B
- Authority
- CN
- China
- Prior art keywords
- insulating
- wheel
- short
- rotary
- cover
- 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.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Leads Or Probes (AREA)
- Testing Relating To Insulation (AREA)
Abstract
A shorting jack for electrical testing of high voltage electrical equipment, comprising: an upper insulation cover, a lower insulation cover, a rotary clamping wheel, a spiral spring and a flat copper wire for short circuit; the upper insulation cover, the lower insulation cover, the rotary clamping wheel and the spiral spring are of a coaxial structure and are sleeved and covered into a whole; the flat copper wire for short circuit is wound on the rotary clamping wheel and is led out through holes at two opposite ends formed by the upper insulation cover and the lower insulation cover. Therefore, in the electrical test of the high-voltage power equipment, the length of the short-circuit wire can be adjusted, and the probability of knotting and winding on-site phenomena is reduced.
Description
Technical Field
The invention relates to the field of electrical test detection of high-voltage power equipment, in particular to a short-circuit line expansion piece for electrical test of high-voltage power equipment.
Background
When the high-voltage power equipment is delivered from a factory, handed over, overhauled and the like, the electrical test needs to be carried out on the power equipment so as to judge whether the power equipment meets the requirements, and the method has important significance for finding out the faults of the power equipment in time, eliminating the hidden danger of the equipment and ensuring the stable operation of a power grid.
At present, a plurality of projects of electrical tests of high-voltage power equipment, such as projects of dielectric loss, insulation, short-circuit impedance and the like of a transformer, need to adopt short-circuit wires meeting the regulation requirements to carry out short-circuit treatment on an outlet of the transformer. The short-circuit wire used in the existing place is often a bare copper wire, the length is fixed, and the length cannot be adjusted, but the requirements on the length of the short-circuit wire are different due to different sizes of power equipment. In addition, because the length of the single copper wire is too long, the withdrawing process wastes time, and the phenomena of winding, knotting and the like often occur, so that the copper wire is inconvenient to use next time, and the working efficiency is greatly reduced.
Therefore, in the electrical test of the high-voltage power equipment, how to adjust the length of the short-circuit wire and reduce the phenomena of knotting and frequent winding on the site becomes a technical problem to be solved urgently.
Disclosure of Invention
The invention aims to solve the technical problem that in the prior art, in an electrical test of high-voltage power equipment, how to adjust the length of a short connecting wire and reduce the phenomena of knotting and field winding.
To this end, according to a first aspect, an embodiment of the present invention discloses a shorting line retractor for electrical testing of high voltage power equipment, comprising:
the device comprises an upper insulation cover, a lower insulation cover, a rotary clamping wheel, a spiral spring and a flat copper wire for short connection; the upper insulation cover, the lower insulation cover, the rotary clamping wheel and the spiral spring are of a coaxial structure and are sleeved and covered into a whole; the flat copper wire for short circuit is wound on the rotary clamping wheel and is led out through holes at two opposite ends formed by the upper insulation cover and the lower insulation cover.
Further, any one or more of the upper insulating cover, the lower insulating cover and the rotary clamping wheel is made of PVC materials.
Further, the upper insulating cover includes: a main cover plate; the insulating buckle is arranged on the upper surface of the main cover plate and comprises a round button and rectangular clamping pieces arranged at two ends of the round button; the fan-shaped locking groove is arranged on the upper surface of the main cover plate and used for detachably locking the rectangular card; and the compression spring is sleeved on the insulating buckle, and the top end of the compression spring is connected with the round button.
Furthermore, the bottom end buckle of the insulating buckle is in a shovel shape.
Further, the sector-shaped locking groove is in a half sector shape of 30-90 degrees.
Further, the rotary click includes: the insulating shell is arranged on the lower side of the rotary clamping wheel, and two openings are formed in the horizontal direction of the insulating shell; and the insulating fence is arranged in the insulating shell, is connected with the insulating shell at the opening and forms a flat copper wire clamping groove between the insulating shell and the non-connecting part.
Further, rotatory calorie of wheel still includes: and the spring clamping groove is arranged on the inner wall of the insulating shell.
Further, rotatory calorie of wheel still includes: the propeller structure is arranged on the upper side of the rotary clamping wheel.
Further, the propeller structure includes: a plurality of annularly arranged card slots; the plurality of baffles are respectively arranged between two adjacent clamping grooves one by one; the clamping wheel insulating cover plate is used for at least partially covering the plurality of clamping grooves which are annularly arranged.
The technical scheme of the invention has the following advantages:
according to the short-circuit wire expansion piece for the electrical test of the high-voltage power equipment, the rotary clamping wheel and the spiral spring are of a coaxial structure and are sleeved and covered into a whole, and the flat copper wire for short circuit is wound on the rotary clamping wheel and is led out through the through holes formed in the upper insulating cover and the lower insulating cover and formed in the opposite two ends. Therefore, in the electrical test of the high-voltage power equipment, the length of the short-circuit wire can be adjusted, and the probability of knotting and winding on-site phenomena is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a short-circuit expansion joint according to an embodiment of the present invention;
FIG. 2a is a schematic side view of an upper insulating cover according to an embodiment of the present invention;
FIG. 2b is a schematic top view of an upper insulating cover in accordance with an embodiment of the present invention;
FIG. 3a is a schematic view of the underside of a rotary chuck wheel according to an embodiment of the present invention;
FIG. 3b is a schematic view of an upper side of a rotary wheel according to an embodiment of the present invention.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; the two elements may be directly connected or indirectly connected through an intermediate medium, or may be connected through the inside of the two elements, or may be connected wirelessly or through a wire. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
Referring to fig. 1, a short-circuit expansion piece for electrical testing of high-voltage power equipment disclosed in this embodiment includes: go up insulating cover 1, lower insulating cover 2, rotatory calorie of wheel 3, coil spring 4 and short circuit with flat copper wire 5, wherein:
the upper insulation cover 1, the lower insulation cover 2, the rotary clamping wheel 3 and the spiral spring 4 are of a coaxial structure and are sleeved and covered into a whole, and the main shaft is positioned in the center of the whole structure; in a specific embodiment, any one or more of the upper insulating cover 1, the lower insulating cover 2 and the rotating chuck wheel 3 is made of PVC material.
The flat copper wire 5 for short circuit is wound on the rotary clamping wheel 3 and is led out through holes at two opposite ends formed by the upper insulating cover 1 and the lower insulating cover 2. In this embodiment, the flat copper wire 5 for short circuit meets the size requirement of GB 50150.
Referring to fig. 2a and 2b, the upper insulating cover 1 includes: a main cover plate 11; the insulating buckle 12 is arranged on the upper surface of the main cover plate 11, and the insulating buckle 12 comprises a circular button 121 and rectangular clamping pieces arranged at two ends of the circular button 121; a sector-shaped locking groove 13 which is arranged on the upper surface of the main cover plate 11 and is used for detachably locking the rectangular card; and the compression spring 14 is sleeved on the insulating buckle 12, and the top end of the compression spring 14 is connected with the round button 121.
In this embodiment, the bottom end of the insulating buckle 12 is preferably in a shovel shape, and the middle part is an insulating rod; the compression spring 14 can be sleeved on the insulating buckle 12, wound on the insulating rod and connected with the round button 121; the sector-shaped locking groove 13 is in a half sector shape of 30-90 degrees, preferably in a half sector shape of 60 degrees, and is internally half hollowed. After the length of drawing forth of flat copper line 5 satisfied the operation requirement, press circular button 121 and rotate 90, with the rectangle card in fan-shaped locked groove 13, at this moment, the bottom buckle has stretched out.
Referring to fig. 3a and fig. 3b, wherein fig. 3a is a schematic view of a lower side of the rotary chuck wheel 3, fig. 3b is a schematic view of an upper side of the rotary chuck wheel 3, the rotary chuck wheel 3 can rotate around the spindle, and the rotary chuck wheel 3 includes: the insulating shell 31 is arranged at the lower side of the rotary clamping wheel 3, and two openings are arranged in the horizontal direction of the insulating shell 31; and the insulating fence 33 is in an omega shape, the insulating fence 33 is arranged inside the insulating shell 31, is connected with the insulating shell 31 at the opening, and forms a flat copper wire clamping groove between the insulating shell 31 and the non-connecting part. In a preferred embodiment, the lower side of the rotary catch wheel 3 further comprises: and the spring clamping groove 32 is arranged on the inner wall of the insulating shell 31. In this embodiment, a part of the flat copper wire 5 for short circuit is clamped in the flat copper wire clamp groove, is led out from two openings on the insulating shell 31, is wound on the rotary clamping wheel 3, and is led out from the left end and the right end formed by the upper insulating cover 1 and the lower insulating cover 2 through holes. The spiral spring 4 is positioned in a cavity formed by connecting the built-in insulating fence 33 and the insulating shell 31, and is isolated from the flat copper wire 5 by the insulating fence 33, so that the flat copper wire 5 has enough insulating strength and is prevented from being short-circuited.
Referring to fig. 3b, the rotating wheel 3 further includes: the propeller structure is arranged on the upper side of the rotary clamping wheel 3. This propeller structure includes: a plurality of annularly arranged card slots 34; a plurality of baffles 35 respectively arranged between two adjacent clamping grooves 34 one by one; a card wheel insulating cover plate 36 for at least partially covering the plurality of annularly arranged card slots 34. By way of example, the propeller structure may be formed by 8 sets of slots 34 and baffles 35 and the wheel insulating cover 26, with adjacent baffles 35 being spaced 45 apart. The bottom end fastener extends into the clamping groove 34 and is blocked by the baffle 35, and at the moment, the whole telescopic device is fixed. When the use is finished, the round button 121 is rotated and popped up by the spring, the lower end fastener retracts into the upper insulation cover 1, and the flat copper wire 5 is fully retracted under the action of the spiral spring 4.
According to the short-circuit wire expansion piece for the electrical test of the high-voltage power equipment, the rotary clamping wheel and the spiral spring are of a coaxial structure and are sleeved and covered into a whole, and the flat copper wire for short circuit is wound on the rotary clamping wheel and is led out through the through holes at two opposite ends formed by the upper insulating cover and the lower insulating cover. Therefore, in the electrical test of the high-voltage power equipment, the length of the short-circuit wire can be adjusted, and the probability of knotting and winding on-site phenomena is reduced. The short-wiring expansion piece provided by the embodiment of the invention can be randomly adjusted in size according to the equipment condition, is convenient to retract, cannot be knotted or wound on the site, and effectively improves the working efficiency on the site.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (6)
1. A shorting jack for electrical testing of high voltage electrical equipment, comprising: an upper insulation cover (1), a lower insulation cover (2), a rotary clamping wheel (3), a spiral spring (4) and a flat copper wire (5) for short circuit;
the upper insulating cover (1), the lower insulating cover (2), the rotary clamping wheel (3) and the spiral spring (4) are of a coaxial structure and are sleeved and covered into a whole;
the flat copper wire (5) for short circuit is wound on the rotary clamping wheel (3) and is led out through holes at two opposite ends formed by the upper insulating cover (1) and the lower insulating cover (2);
any one or more of the upper insulating cover (1), the lower insulating cover (2) and the rotary clamping wheel (3) is/are made of PVC material;
the upper insulating cover (1) comprises:
a main cover plate (11);
the insulating buckle (12) is arranged on the upper surface of the main cover plate (11), and the insulating buckle (12) comprises a round button (121) and rectangular clamping pieces arranged at two ends of the round button (121);
the fan-shaped locking groove (13) is arranged on the upper surface of the main cover plate (11) and is used for detachably locking the rectangular card;
the compression spring (14) is sleeved on the insulating buckle (12), and the top end of the compression spring (14) is connected with the round button (121);
the rotary catch wheel (3) comprises:
the insulating shell (31) is arranged on the lower side of the rotary clamping wheel (3), and two openings are formed in the horizontal direction of the insulating shell (31);
and the insulating fence (33) is arranged in the insulating shell (31), is connected with the insulating shell (31) at the opening, and forms a flat copper wire clamp groove between the insulating shell (31) of the non-connection part.
2. A short-circuit retractor for electrical testing of high-voltage electrical equipment according to claim 1 wherein the bottom end of the insulating latch (12) is spade-shaped.
3. A short-circuit retractor for electrical tests of high-voltage electrical apparatuses according to claim 1, characterized in that said sector-shaped locking notch (13) is a half sector of 30 ° to 90 °.
4. A shorting jack for electrical testing of high voltage electrical power equipment according to claim 1, wherein the rotary chuck wheel (3) further comprises:
and the spring clamping groove (32) is arranged on the inner wall of the insulating shell (31).
5. A short-circuit retractor for electrical tests of high-voltage electrical apparatuses according to claim 1, wherein said rotary click wheel (3) further comprises:
the propeller structure is arranged on the upper side of the rotary clamping wheel (3).
6. A shorting jack for electrical testing of high voltage electrical power equipment as recited in claim 5 wherein said propeller structure comprises:
a plurality of annularly arranged card slots (34);
the baffles (35) are respectively arranged between two adjacent clamping grooves (34) one by one;
a card wheel insulating cover plate (36) for at least partially covering the plurality of annularly arranged card slots (34).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610601221.3A CN106168642B (en) | 2016-07-27 | 2016-07-27 | Short-circuit wire expansion piece for electrical test of high-voltage power equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610601221.3A CN106168642B (en) | 2016-07-27 | 2016-07-27 | Short-circuit wire expansion piece for electrical test of high-voltage power equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106168642A CN106168642A (en) | 2016-11-30 |
| CN106168642B true CN106168642B (en) | 2023-03-14 |
Family
ID=58065968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610601221.3A Active CN106168642B (en) | 2016-07-27 | 2016-07-27 | Short-circuit wire expansion piece for electrical test of high-voltage power equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106168642B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107271736B (en) * | 2017-08-01 | 2019-11-19 | 国家电网公司 | A kind of dedicated short seal apparatus of transformer test |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3273061A (en) * | 1961-03-01 | 1966-09-13 | Agfa Ag | Galvanometer coil assembly having a plastic coil frame |
| US5429517A (en) * | 1994-02-14 | 1995-07-04 | Methode Electronics, Inc. | Two-piece clockspring with lock and wire harness assembly |
| CN102680751A (en) * | 2012-05-28 | 2012-09-19 | 湖南省电力公司永州道县电力局 | Telescopic connection device for electrical test |
| CN204214894U (en) * | 2014-10-22 | 2015-03-18 | 国家电网公司 | A kind of electrical test shorting stub with automatic wire winding function |
| CN104655881A (en) * | 2013-11-19 | 2015-05-27 | 国家电网公司 | Portable automatic retractable combination cable |
| CN105116180A (en) * | 2015-09-08 | 2015-12-02 | 国网山东省电力公司经济技术研究院 | Portable test shorting stub device |
| CN105203803A (en) * | 2015-09-23 | 2015-12-30 | 国家电网公司 | Portable electrical test connection wire |
| CN105301295A (en) * | 2015-10-28 | 2016-02-03 | 国网天津市电力公司 | Indoor cable inlet transformer winding short-circuiting device |
| CN205982456U (en) * | 2016-07-27 | 2017-02-22 | 国网山东省电力公司青岛供电公司 | A shorting stub expansion bend for electric experiment of high voltage electric power equip ment |
-
2016
- 2016-07-27 CN CN201610601221.3A patent/CN106168642B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3273061A (en) * | 1961-03-01 | 1966-09-13 | Agfa Ag | Galvanometer coil assembly having a plastic coil frame |
| US5429517A (en) * | 1994-02-14 | 1995-07-04 | Methode Electronics, Inc. | Two-piece clockspring with lock and wire harness assembly |
| CN102680751A (en) * | 2012-05-28 | 2012-09-19 | 湖南省电力公司永州道县电力局 | Telescopic connection device for electrical test |
| CN104655881A (en) * | 2013-11-19 | 2015-05-27 | 国家电网公司 | Portable automatic retractable combination cable |
| CN204214894U (en) * | 2014-10-22 | 2015-03-18 | 国家电网公司 | A kind of electrical test shorting stub with automatic wire winding function |
| CN105116180A (en) * | 2015-09-08 | 2015-12-02 | 国网山东省电力公司经济技术研究院 | Portable test shorting stub device |
| CN105203803A (en) * | 2015-09-23 | 2015-12-30 | 国家电网公司 | Portable electrical test connection wire |
| CN105301295A (en) * | 2015-10-28 | 2016-02-03 | 国网天津市电力公司 | Indoor cable inlet transformer winding short-circuiting device |
| CN205982456U (en) * | 2016-07-27 | 2017-02-22 | 国网山东省电力公司青岛供电公司 | A shorting stub expansion bend for electric experiment of high voltage electric power equip ment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106168642A (en) | 2016-11-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US3987456A (en) | Wide relative frequency band and reduced size-to-wavelength ratio antenna | |
| CN106168642B (en) | Short-circuit wire expansion piece for electrical test of high-voltage power equipment | |
| CN105116180A (en) | Portable test shorting stub device | |
| RU2448395C1 (en) | Conical asymmetric vibrator | |
| CN114551092A (en) | Special discharging device for power capacitor | |
| CN105738735B (en) | A kind of line crossing structure and method | |
| CN205982456U (en) | A shorting stub expansion bend for electric experiment of high voltage electric power equip ment | |
| CN220473645U (en) | Anti-electric strength detection device | |
| CN207851153U (en) | A kind of measuring rod | |
| CN216214547U (en) | Stable high voltage power supply output head | |
| CN217239203U (en) | Protective current transformer shell | |
| CN106300174A (en) | Relay protection type wall bushing | |
| CN217543370U (en) | Novel junction pole for field verification of strut-type current transformer | |
| CN220913275U (en) | Insulating rod withstand voltage test device | |
| CN112530717A (en) | Telescopic insulating rod | |
| CN207009393U (en) | The powered dismantling device of high-tension fuse | |
| CN215986171U (en) | PT plug test fixture system | |
| CN111965396A (en) | Three-phase terminal quick connection structure and switch cabinet port withstand voltage test device | |
| CN215933822U (en) | Spatial ultrahigh frequency omnidirectional antenna | |
| CN216958793U (en) | Discharging rod for power capacitor | |
| CN218678376U (en) | Overhead wire fixing device | |
| CN221378235U (en) | Outdoor mutual inductor polarity testing tool | |
| CN219657797U (en) | Power transformer fault detection equipment | |
| CN218384243U (en) | Testing device of electronic fence | |
| CN205027790U (en) | Portable experimental short termination |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: Shinan District 266003 Shandong city of Qingdao province Liujiaxia Road No. 17 Applicant after: QINGDAO POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER COMPANY Applicant after: STATE GRID CORPORATION OF CHINA Address before: Shinan District 266003 Shandong city of Qingdao province Liujiaxia Road No. 17 Applicant before: QINGDAO POWER SUPPLY COMPANY OF STATE GRID SHANDONG ELECTRIC POWER COMPANY Applicant before: State Grid Corporation of China |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |