CN103808972A - Current transformer polarity test rod - Google Patents
Current transformer polarity test rod Download PDFInfo
- Publication number
- CN103808972A CN103808972A CN201310716471.8A CN201310716471A CN103808972A CN 103808972 A CN103808972 A CN 103808972A CN 201310716471 A CN201310716471 A CN 201310716471A CN 103808972 A CN103808972 A CN 103808972A
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- wire
- insulating bar
- test
- current transformer
- rod
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Abstract
The invention discloses a current transformer polarity test rod comprising a wire hook, a middle connecting insulating rod and a test tail rod, wherein the top end of the middle connecting insulating rod is connected with the wire hook, and the bottom end of the middle connecting insulating rod is connected with the test tail rod by virtue of a fixed structure; sawteeth are arranged on the inwards bent curved surface of the wire hook, and an elastic fastener is arranged at the inlet of the wire hook and at the top end of the middle connecting insulating rod; a wire suspending locking seat is arranged on the wire hook, and a direct-current power supply circuit is arranged in the test tail rod. The middle connecting insulating rod is formed by jointing more than two hollow insulating rods by virtue of a fixed structure. According to the invention, the test rod is reliably connected with the outgoing lines of the two poles of the current transformer, and the use length of the test rod can be adjusted, and therefore, the working difficulty is reduced, the working efficiency is improved, and simultaneously, the working safety coefficient is increased.
Description
Technical field
The invention belongs to technical field of power systems, especially relate to a kind of current transformer polarity testing bar.
Background technology
Along with the development of electrical network, the equipment of administration is also in continuous increase, and polarity test work also constantly appears in a large amount of working sites.In electric system; correct operation, the electric power system tide of the polarity of current transformer to relay protection calculates and the correct metering of electrical load has great importance, and therefore after new input, replacing and the current transformer of each circuit are changed the work such as no-load voltage ratio, all will carry out the test of polarity.
In the time of current transformer polarity testing, need to utilize reference test bar two wires to be hung over to the two poles of the earth of current transformer, one end is near bus bar side, one end is near line side, by two wire exact connect ions, after battery plus-negative plate, the swaying direction of observing pointer gauge judges that whether the secondary connection of current transformer is correct.In reality test, because articulating of reference test bar and the outlet of current transformer the two poles of the earth is not firm, the accident that often goes offline, affects carrying out smoothly of test job.In addition, along with the raising of electric pressure, the distance on current-carrying part and ground also increases thereupon, and in test job, the height that staff need to climb also increases at the scene, has increased work difficulty and has also reduced operating safety factor, has also reduced work efficiency.
Summary of the invention
In order to overcome the deficiencies in the prior art, the invention provides one and can articulate firm, safe and reliable current transformer polarity testing bar with the outlet of current transformer the two poles of the earth.
The present invention is achieved by the following technical solutions:
A kind of current transformer polarity testing bar, it comprises wire-hanging hook, middle insulating bar and the test foot piece of connecting; In the middle of described, connect insulating bar top and connect wire-hanging hook, its bottom adopts fixed sturcture to be connected with test foot piece; On the interior curved arc face of described wire-hanging hook, sawtooth is set, connects the top of insulating bar in centre, the porch of wire-hanging hook is provided with Elastic buckle; Described wire-hanging hook is provided with hanging wire deck; Described test foot piece inside arranges DC power-supply circuit.
In the middle of above-described, connecting insulating bar adopts fixed sturcture to be spliced by two above hollow insulating bars.
Preferably, be provided with groove in one end of above-described hollow insulating bar, the other end is provided with metal connecting piece; The link of described test foot piece is provided with metal connecting piece; Described fixed connection structure is that hollow insulating bar or the metal connecting piece of test on foot piece are arranged in the groove on connected hollow insulating bar and form.
When use, according to the difference of electric pressure, the hollow insulating bar that can add multiple prolongation use is spliced into the middle insulating bar that connects, metal connecting piece has guaranteed between hollow insulating bar or hollow insulating bar and reliable connection of testing between foot piece with groove, guaranteed the total quality of reference test bar in over distance uses.Wire-hanging hook hangs over test line by the sawtooth of interior curved arc face, and Elastic buckle blocks the lower surface of current transformer, makes to hang stable.
Advantage of the present invention and beneficial effect are as follows:
1, the interior curved arc face of wire-hanging hook of the present invention is designed to zigzag, has increased reference test bar and by the friction force on hanging wire road, has guaranteed larger contact range; Elastic buckle can block the lower surface of current transformer, has increased contact area, makes to hang stable, firm.
2, the middle insulating bar that connects of the present invention can be spliced by many hollow insulating bars, can, according to the use length of Operating condition adjustment reference test bar, no longer need staff's climbing operation, reduce work difficulty, workflow is simplified, improved operating safety factor simultaneously.
3, the present invention is simple in structure, easy to use, and production cost is low.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of hollow insulating bar of the present invention.
Fig. 3 is the structural representation of test foot piece of the present invention.
Accompanying drawing mark:
1-wire-hanging hook, 2-Elastic buckle, 3-hanging wire deck, connects insulating bar in the middle of 4-, and 5-tests foot piece, 6-metal connecting piece, 7-groove.
Embodiment
Below in conjunction with the drawings and specific embodiments, the invention will be further described.
Embodiment 1:
A kind of current transformer polarity testing bar, it comprises wire-hanging hook 1, middle insulating bar 4 and the test foot piece 5 of connecting, wherein, the described middle insulating bar 4 that connects adopts fixed sturcture to be spliced by two hollow insulating bars.Be provided with groove 7 in one end of described hollow insulating bar, the other end is provided with metal connecting piece 6; Fixed connection structure between two hollow insulating bars is to be arranged in the groove 7 on connected hollow insulating bar and to be formed by the metal connecting piece 6 on hollow insulating bar.The top that connects insulating bar 4 in the middle of being spliced by hollow insulating bar connects wire-hanging hook 1, and its bottom adopts fixed sturcture to be connected with test foot piece 5.The link of described test foot piece 5 is provided with metal connecting piece 6; Test foot piece 5 and the middle fixed connection structure being connected between insulating bar 4 are to be arranged in the groove 7 on connected hollow insulating bar and to be formed by the metal connecting piece 6 on test foot piece 5.On the interior curved arc face of described wire-hanging hook 1, sawtooth is set, connects the top of insulating bar 4 in centre, the porch of wire-hanging hook 1 is provided with Elastic buckle 2; Described wire-hanging hook 1 is provided with hanging wire deck 3; Described test foot piece 5 inside arrange DC power-supply circuit.
When use, according to the difference of electric pressure, the hollow insulating bar that can add multiple prolongation use is spliced into the middle insulating bar 4 that connects, metal connecting piece 6 has guaranteed between hollow insulating bar with groove 7 or hollow insulating bar and reliable connection of testing between foot piece 5, has guaranteed the total quality of reference test bar in over distance uses.Wire-hanging hook 1 hangs over test line by the sawtooth of interior bent arc face, and Elastic buckle 2 blocks the lower surface of current transformer, makes to hang stable.
Embodiment 2:
A kind of current transformer polarity testing bar, it comprises wire-hanging hook 1, middle insulating bar 4 and the test foot piece 5 of connecting, wherein, the described middle insulating bar 4 that connects adopts fixed sturcture to be spliced by four hollow insulating bars.Be provided with groove 7 in one end of described hollow insulating bar, the other end is provided with metal connecting piece 6; Fixed connection structure between every two hollow insulating bars is to be arranged in the groove 7 on connected hollow insulating bar and to be formed by the metal connecting piece 6 on hollow insulating bar.The top that connects insulating bar 4 in the middle of being spliced by hollow insulating bar connects wire-hanging hook 1, and its bottom adopts fixed sturcture to be connected with test foot piece 5.The link of described test foot piece 5 is provided with metal connecting piece 6; Test foot piece 5 and the middle fixed connection structure being connected between insulating bar 4 are to be arranged in the groove 7 on connected hollow insulating bar and to be formed by the metal connecting piece 6 on test foot piece 5.On the interior curved arc face of described wire-hanging hook 1, sawtooth is set, connects the top of insulating bar 4 in centre, the porch of wire-hanging hook 1 is provided with Elastic buckle 2; Described wire-hanging hook 1 is provided with hanging wire deck 3; Described test foot piece 5 inside arrange DC power-supply circuit.
When use, according to the difference of electric pressure, the hollow insulating bar that can add multiple prolongation use is spliced into the middle insulating bar 4 that connects, metal connecting piece 6 has guaranteed between hollow insulating bar with groove 7 or hollow insulating bar and reliable connection of testing between foot piece 5, has guaranteed the total quality of reference test bar in over distance uses.Wire-hanging hook 1 hangs over test line by the sawtooth of interior curved arc face, and Elastic buckle 2 blocks the lower surface of current transformer, makes to hang stable.
Claims (3)
1. a current transformer polarity testing bar, is characterized in that: it comprises wire-hanging hook (1), middle insulating bar (4) and the test foot piece (5) of connecting; In the middle of described, connect insulating bar (4) top and connect wire-hanging hook (1), its bottom adopts fixed sturcture to be connected with test foot piece (5); On the interior curved arc face of described wire-hanging hook (1), sawtooth is set, connects the top of insulating bar (4) in centre, the porch of wire-hanging hook (1) is provided with Elastic buckle (2); Described wire-hanging hook (1) is provided with hanging wire deck (3); Described test foot piece (5) inside arranges DC power-supply circuit.
2. a kind of current transformer polarity testing bar according to claim 1, is characterized in that: in the middle of described, connect insulating bar (4) and adopt fixed sturcture to be spliced by two above hollow insulating bars.
3. any current transformer polarity testing bar according to claim 2, is characterized in that: be provided with groove (7) in one end of described hollow insulating bar, the other end is provided with metal connecting piece (6); The link of described test foot piece (5) is provided with metal connecting piece (6); Described fixed connection structure is that the metal connecting piece (6) on hollow insulating bar or test foot piece (5) is arranged on formation in the groove (7) on connected hollow insulating bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310716471.8A CN103808972A (en) | 2013-12-23 | 2013-12-23 | Current transformer polarity test rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310716471.8A CN103808972A (en) | 2013-12-23 | 2013-12-23 | Current transformer polarity test rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103808972A true CN103808972A (en) | 2014-05-21 |
Family
ID=50706043
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310716471.8A Pending CN103808972A (en) | 2013-12-23 | 2013-12-23 | Current transformer polarity test rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103808972A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541519A (en) * | 2018-12-14 | 2019-03-29 | 温州大学 | Current transformer performance test retaining mechanism |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203178402U (en) * | 2013-02-19 | 2013-09-04 | 冀北电力有限公司承德供电公司 | Novel current transformer test rod and test device |
| CN203224514U (en) * | 2013-03-28 | 2013-10-02 | 国家电网公司 | Current transformer polarity test wire hanging rod |
| CN203909070U (en) * | 2013-12-23 | 2014-10-29 | 广西桂网电力试验有限公司 | Current transformer polarity test rod |
-
2013
- 2013-12-23 CN CN201310716471.8A patent/CN103808972A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203178402U (en) * | 2013-02-19 | 2013-09-04 | 冀北电力有限公司承德供电公司 | Novel current transformer test rod and test device |
| CN203224514U (en) * | 2013-03-28 | 2013-10-02 | 国家电网公司 | Current transformer polarity test wire hanging rod |
| CN203909070U (en) * | 2013-12-23 | 2014-10-29 | 广西桂网电力试验有限公司 | Current transformer polarity test rod |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109541519A (en) * | 2018-12-14 | 2019-03-29 | 温州大学 | Current transformer performance test retaining mechanism |
| CN109541519B (en) * | 2018-12-14 | 2023-09-05 | 温州大学 | Current transformer performance test locking mechanism |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140521 |
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| WD01 | Invention patent application deemed withdrawn after publication |