CN103344796A - Short circuit alternating current terminal strip testing device - Google Patents
Short circuit alternating current terminal strip testing device Download PDFInfo
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- CN103344796A CN103344796A CN2013102677407A CN201310267740A CN103344796A CN 103344796 A CN103344796 A CN 103344796A CN 2013102677407 A CN2013102677407 A CN 2013102677407A CN 201310267740 A CN201310267740 A CN 201310267740A CN 103344796 A CN103344796 A CN 103344796A
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Abstract
The invention provides a short circuit alternating current terminal strip testing device which comprises an outer shell. Four insulation barriers are fixed on the inner wall of the left side of an inner cavity of the outer shell at equal interval, a wire leading device is arranged above each insulation barrier, each wire leading device comprises a connecting joint and a static contact, the static contacts are connected with the connecting joints through insulation wires, the static contacts are fixed at the right ends of the insulation barriers, and the connecting joints penetrate through the outer shell. A plurality of springs are fixed on the inner wall of the right side of the inner cavity of the outer shell at equal interval, the left ends of the springs are all connected with the right surface of a metal sheet, the left surface of the metal sheet is connected with the right end of an insulation reset rod, and the left end of the insulation reset rod penetrates through the outer shell. The upper surface and the lower surface of the outer shell are respectively provided with a bolt. The short circuit alternating current terminal strip testing device is simple in structure and low in cost, can be flexibly suitable for various current secondary circuit wire connection modes and greatly improves the personal safety and the work efficiency of workers.
Description
Technical field
The present invention relates to a kind of electric power apparatus examination device, relate in particular to a kind of short circuit ac terminal row's test unit.
Background technology
In daily real work; we run into through regular meeting needs charged (primary equipment does not have a power failure) that the CT secondary circuit is changed; to reach the purpose of changing Secondary Winding no-load voltage ratio or polarity; all be that charged locating in terminal row secondary current loop carried out short circuit with electric current connection sheet at ordinary times; because the staff faces the electric arc of issuable high voltage and generation in the short circuit process; can be because hand mistake or anxiety cause the current return sealing-in bad; make the arcing of current terminal place burn terminal row or terminal row insulation reduction; and the high voltage that the staff directly produces in the face of the secondary circuit open circuit; also the person and equipment are caused very big injury; also will cause disturbance and mistaking signal to protective device unusually because of the secondary current loop in the sealing-in process; and because that current terminal needs the position of sealing-in and each protective device and various convergence control cabinet current returns to arrange is different, bring very big puzzlement to work.
The device of existing sealing-in current terminal only is that three or four fixing metal objects are simply linked together, in order to short circuit secondary current loop, can't adapt to complicated various secondary current circuit connection modes, significant limitation is arranged, and, because the high voltage that the staff directly causes in the face of the current return open circuit has very big danger to personnel.
Summary of the invention
For solving above-mentioned defective of the prior art, the invention provides a kind of short circuit ac terminal row's test unit, solved that existing apparatus accommodation is little, efficient is low, the problem of poor stability.
For solving the problems of the technologies described above, the present invention program comprises: a kind of short circuit ac terminal row's test unit, it is characterized in that, comprise airtight square cavity shell, the inner left wall equal intervals of described shell inner cavity fixedly has four insulation barriers, the top of described four insulation barriers is provided with a thread guide devices, described thread guide devices comprises jointing and static contact, connect by insulated conductor between described static contact and the jointing, described static contact is fixed on the right-hand member of insulation barrier, and described jointing runs through shell; The right side inwall equal intervals of described described shell inner cavity fixedly has some springs, and the left end of described spring all is fixed on the right surface of sheet metal, and the left surface of described sheet metal is connected with the right-hand member of insulation ejector return pin, and the left end of insulation ejector return pin runs through shell; The middle part of the upper and lower surface of described shell is respectively equipped with a latch, and described latch all runs through shell.
Further, also be provided with the insulated bolt of some horizontal parallel on the described shell, described insulated bolt runs through shell respectively and contacts with the right surface of sheet metal.
The invention has the beneficial effects as follows: the present invention is simple in structure, with low cost, but the various electric current secondary loop modes of connection of flexible adaptation, and make the staff in the course of the work away from issuable high voltage, greatly improve staff's personal safety and work efficiency.Simultaneously, when mistake appearred in the CT secondary circuit, the staff can not change secondary circuit and connect situation under the prerequisite that primary equipment is not had a power failure, and had significantly reduced the economic loss that equipment has a power failure and causes, and was very suitable for maintenance and the maintenance of power equipment.
Description of drawings
Fig. 1 is that master of the present invention looks the sectional structure synoptic diagram.
Among the figure: 1 shell, 2 insulation barriers, 3 static contacts, 4 jointings, 5 insulation ejector return pins, 6 latches, 7 sheet metals, 8 springs, 9 insulated bolts.
Embodiment
Below in conjunction with accompanying drawing concrete enforcement of the present invention is described, should be appreciated that exemplifying embodiment described herein only is used for description and interpretation the present invention, and be not used in restriction the present invention.
A kind of short circuit ac terminal row's as shown in Figure 1 test unit, it comprises airtight square cavity shell 1, the inner left wall equal intervals of described shell 1 inner chamber fixedly has four insulation barriers 2, the top of described four insulation barriers 2 is provided with a thread guide devices, described thread guide devices comprises jointing 4 and static contact 3, connect by insulated conductor between described static contact 3 and the jointing 4, described static contact 3 is fixed on the right-hand member of insulation barrier 2, and described jointing 4 runs through shell 1; The right side inwall equal intervals of described described shell 1 inner chamber fixedly has some springs 8, the left end of described spring 8 all is fixed on the right surface of sheet metal 7, the left surface of described sheet metal 7 is connected with the right-hand member of insulation ejector return pin 5, and the left end of insulation ejector return pin 5 runs through shell 1; The middle part of the upper and lower surface of described shell 1 is respectively equipped with a latch 6, and described latch 6 all runs through shell 1; Also be provided with the insulated bolt 9 of some horizontal parallel on the described shell 1, described insulated bolt 9 runs through shell 1 respectively and contacts with the right surface of sheet metal 7.
Under the normal condition, latch 6 stretches into shell 1 inside, with the have side of sheet metal 7 retainings at latch 6, thereby static contact 3 is separated with sheet metal 7.
When needs short circuit ac terminal row secondary circuit, the joint of A phase terminal, B phase terminal, C phase terminal and ground lead is connected respectively on four jointings 4, then, outwards extract latch 6, sheet metal 7 can be moved to the left under the acting force of spring 8, make sheet metal 7 contact simultaneously with four static contacts 3, realize the short circuit of three-phase current.
For anti-rocking of locking apparatus causes sheet metal 7 to separate with static contact 3, can rotating insulated bolt 9, sheet metal 7 is pressed on the static contact 3 firmly.
The state of finder inside can arrange transparency window at shell 1 for convenience, is convenient to maintenance and the maintenance of device.
Should be understood that; above-mentioned description at preferred embodiment is comparatively detailed; can not therefore think the restriction to scope of patent protection of the present invention; those of ordinary skill in the art is under enlightenment of the present invention; do not breaking away under the scope situation that claim of the present invention protects; can also make various deformation such as replacement, simple combination, these all fall within protection scope of the present invention, and the scope of asking for protection of the present invention should be as the criterion with claims.
Claims (2)
1. short circuit ac terminal row's test unit, it is characterized in that, comprise airtight square cavity shell, the inner left wall equal intervals of described shell inner cavity fixedly has four insulation barriers, the top of described four insulation barriers is provided with a thread guide devices, and described thread guide devices comprises jointing and static contact, connects by insulated conductor between described static contact and the jointing, described static contact is fixed on the right-hand member of insulation barrier, and described jointing runs through shell; The right side inwall equal intervals of described described shell inner cavity fixedly has some springs, and the left end of described spring all is fixed on the right surface of sheet metal, and the left surface of described sheet metal is connected with the right-hand member of insulation ejector return pin, and the left end of insulation ejector return pin runs through shell; The middle part of the upper and lower surface of described shell is respectively equipped with a latch, and described latch all runs through shell.
2. a kind of short circuit ac terminal row's according to claim 1 test unit is characterized in that, also is provided with the insulated bolt of some horizontal parallel on the described shell, and described insulated bolt runs through shell respectively and contacts with the right surface of sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310267740.7A CN103344796B (en) | 2013-06-28 | 2013-06-28 | The test unit of a kind of short circuit ac terminal row |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310267740.7A CN103344796B (en) | 2013-06-28 | 2013-06-28 | The test unit of a kind of short circuit ac terminal row |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103344796A true CN103344796A (en) | 2013-10-09 |
| CN103344796B CN103344796B (en) | 2015-10-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310267740.7A Active CN103344796B (en) | 2013-06-28 | 2013-06-28 | The test unit of a kind of short circuit ac terminal row |
Country Status (1)
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| CN (1) | CN103344796B (en) |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2531395Y (en) * | 2002-02-25 | 2003-01-15 | 首钢总公司 | Instrument terminal connector |
| CN201576862U (en) * | 2009-09-18 | 2010-09-08 | 北京市电力公司 | Short circuit seal used for plugging in current test terminal |
| CN101900749A (en) * | 2010-07-07 | 2010-12-01 | 重庆邮电大学 | Support for testing BGA packaged chips |
| CN202150608U (en) * | 2011-07-21 | 2012-02-22 | 南京天溯自动化控制系统有限公司 | Pin hole self-adaptive terminal |
| JP2012050182A (en) * | 2010-08-24 | 2012-03-08 | Chugoku Electric Power Co Inc:The | Current transformer secondary opening protection circuit, electric board, and test plug |
| CN202351267U (en) * | 2011-09-30 | 2012-07-25 | 深圳市新益昌自动化设备有限公司 | Test fixture for aluminium electrolytic capacitor |
| CN202649277U (en) * | 2012-07-07 | 2013-01-02 | 新疆疆南电力有限责任公司 | Rapid short-circuit device of secondary side of current transformer |
| CN202916430U (en) * | 2012-11-06 | 2013-05-01 | 河南中分仪器股份有限公司 | Current transmitter testing device |
| CN203324310U (en) * | 2013-06-28 | 2013-12-04 | 国家电网公司 | Test device for short circuit alternating current terminal row |
-
2013
- 2013-06-28 CN CN201310267740.7A patent/CN103344796B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2531395Y (en) * | 2002-02-25 | 2003-01-15 | 首钢总公司 | Instrument terminal connector |
| CN201576862U (en) * | 2009-09-18 | 2010-09-08 | 北京市电力公司 | Short circuit seal used for plugging in current test terminal |
| CN101900749A (en) * | 2010-07-07 | 2010-12-01 | 重庆邮电大学 | Support for testing BGA packaged chips |
| JP2012050182A (en) * | 2010-08-24 | 2012-03-08 | Chugoku Electric Power Co Inc:The | Current transformer secondary opening protection circuit, electric board, and test plug |
| CN202150608U (en) * | 2011-07-21 | 2012-02-22 | 南京天溯自动化控制系统有限公司 | Pin hole self-adaptive terminal |
| CN202351267U (en) * | 2011-09-30 | 2012-07-25 | 深圳市新益昌自动化设备有限公司 | Test fixture for aluminium electrolytic capacitor |
| CN202649277U (en) * | 2012-07-07 | 2013-01-02 | 新疆疆南电力有限责任公司 | Rapid short-circuit device of secondary side of current transformer |
| CN202916430U (en) * | 2012-11-06 | 2013-05-01 | 河南中分仪器股份有限公司 | Current transmitter testing device |
| CN203324310U (en) * | 2013-06-28 | 2013-12-04 | 国家电网公司 | Test device for short circuit alternating current terminal row |
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| Publication number | Publication date |
|---|---|
| CN103344796B (en) | 2015-10-28 |
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