CN203324310U - Test device for short circuit alternating current terminal row - Google Patents
Test device for short circuit alternating current terminal row Download PDFInfo
- Publication number
- CN203324310U CN203324310U CN2013203790741U CN201320379074U CN203324310U CN 203324310 U CN203324310 U CN 203324310U CN 2013203790741 U CN2013203790741 U CN 2013203790741U CN 201320379074 U CN201320379074 U CN 201320379074U CN 203324310 U CN203324310 U CN 203324310U
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- Prior art keywords
- shell
- insulation
- casing
- short circuit
- fixed
- 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.)
- Expired - Lifetime
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- 238000009413 insulation Methods 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims abstract description 19
- 229910052751 metal Inorganic materials 0.000 claims abstract description 19
- 230000003068 static effect Effects 0.000 claims abstract description 17
- 230000004888 barrier function Effects 0.000 claims description 10
- 239000004020 conductor Substances 0.000 claims description 3
- 238000012423 maintenance Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 208000019901 Anxiety disease Diseases 0.000 description 1
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004308 accommodation Effects 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000036506 anxiety Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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- Elimination Of Static Electricity (AREA)
Abstract
The utility model provides a test device for a short circuit alternating current terminal row. The test device comprises a casing, wherein a left inner wall of an inner chamber of the casing is uniformly fixed with four insulation baffle boards with intervals, a leading wire device is arranged above each of the four insulation baffle boards, the leading wire devices comprise connection joints and static contacts, the static contacts and the connection joints are connected through insulation leads, the static contacts are fixed at right ends of the insulation baffle boards, the connection joints penetrate through the casing, a right inner wall of the inner chamber of the casing is uniformly fixed with a plurality of springs with intervals, left ends of the springs are respectively connected with a right surface of a metal sheet, a left surface of the metal sheet is connected with a right end of an insulation reset rod, a left end of the insulation reset rod penetrates through the casing, and upper and lower surfaces of the casing are provided with a pin respectively. The test device has properties of simple structure and low cost, can flexibly adapt to a wiring mode of various types of secondary current loops and greatly improves personal safety of workers and work efficiency.
Description
Technical field
The utility model relates to a kind of electric power apparatus examination device, relates in particular to a kind of short circuit ac terminal row's test unit.
Background technology
In daily real work, we often can encounter needs charged (primary equipment does not have a power failure) to be changed the CT secondary circuit, to reach the purpose of changing Secondary Winding no-load voltage ratio or polarity, all that charged locating in terminal row secondary current loop carried out short circuit with electric current connection sheet at ordinary times, due to staff's electric arc in the face 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 to very big injury, also will extremely to protective device, cause disturbance and mistaking signal because of the secondary current loop in the sealing-in process, and with various convergence control cabinet current returns, arrange different because current terminal needs the position of sealing-in and each protective device, bring very big puzzlement to work.
The device of existing sealing-in current terminal is only 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, high voltage because the staff directly causes in the face of the current return open circuit, have very large danger to personnel.
The utility model content
For solving above-mentioned defect of the prior art, the utility model provides a kind of short circuit ac terminal row's test unit, has solved that existing apparatus accommodation is little, efficiency is low, the problem of poor stability.
For solving the problems of the technologies described above, the utility model scheme 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 is fixed with 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, between described static contact and jointing, by insulated conductor, connect, 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 is fixed with 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 described shell, described insulated bolt runs through respectively the right Surface Contact of shell and sheet metal.
The beneficial effects of the utility model are: the utility model 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 appears in the CT secondary circuit, the staff, will under the prerequisite of primary equipment power failure, not changing the secondary circuit connection, has greatly reduced the economic loss that equipment has a power failure and causes, and is very suitable for maintenance and the maintenance of power equipment.
The accompanying drawing explanation
Fig. 1 is that master of the present utility model looks the sectional structure schematic diagram.
In 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 utility model is described, should be appreciated that exemplifying embodiment described herein is only for description and interpretation the utility model, and be not used in restriction the utility model.
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 is fixed with 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, between described static contact 3 and jointing 4, by insulated conductor, connect, 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 is fixed with 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 described shell 1, described insulated bolt 9 runs through respectively the right Surface Contact of shell 1 and sheet metal 7.
Under normal condition, latch 6 stretches into shell 1 inside, the side that has by sheet metal 7 gears at latch 6, thus 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 with four static contacts 3 simultaneously, 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 static contact 3 firmly.
In order to facilitate the state of finder inside, can on shell 1, transparency window be set, be convenient to maintenance and the maintenance of device.
Should be understood that; the above-mentioned description for preferred embodiment is comparatively detailed; can not therefore think the restriction to the utility model scope of patent protection; those of ordinary skill in the art is under enlightenment of the present utility model; do not breaking away from the scope situation that the utility model claim protects; can also make the various deformation such as replacement, simple combination, within these all fall into protection domain of the present utility model, the scope of asking for protection of the present utility model 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 is fixed with 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, between described static contact and jointing, by insulated conductor, connects, 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 is fixed with 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 be provided with the insulated bolt of some horizontal parallel on described shell, described insulated bolt runs through respectively the right Surface Contact of shell and sheet metal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203790741U CN203324310U (en) | 2013-06-28 | 2013-06-28 | Test device for short circuit alternating current terminal row |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203790741U CN203324310U (en) | 2013-06-28 | 2013-06-28 | Test device for short circuit alternating current terminal row |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203324310U true CN203324310U (en) | 2013-12-04 |
Family
ID=49663648
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013203790741U Expired - Lifetime CN203324310U (en) | 2013-06-28 | 2013-06-28 | Test device for short circuit alternating current terminal row |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203324310U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344796A (en) * | 2013-06-28 | 2013-10-09 | 国家电网公司 | Short circuit alternating current terminal strip testing device |
-
2013
- 2013-06-28 CN CN2013203790741U patent/CN203324310U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103344796A (en) * | 2013-06-28 | 2013-10-09 | 国家电网公司 | Short circuit alternating current terminal strip testing device |
| CN103344796B (en) * | 2013-06-28 | 2015-10-28 | 国家电网公司 | The test unit of a kind of short circuit ac terminal row |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20131204 Effective date of abandoning: 20151028 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |