CN107579471A - A kind of handcart switch cabinet CT rising test short-circuit devices - Google Patents
A kind of handcart switch cabinet CT rising test short-circuit devices Download PDFInfo
- Publication number
- CN107579471A CN107579471A CN201610521032.5A CN201610521032A CN107579471A CN 107579471 A CN107579471 A CN 107579471A CN 201610521032 A CN201610521032 A CN 201610521032A CN 107579471 A CN107579471 A CN 107579471A
- Authority
- CN
- China
- Prior art keywords
- copper
- active joint
- contact plate
- clamp
- anchor tip
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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.)
- Pending
Links
- 238000012360 testing method Methods 0.000 title claims abstract description 39
- 230000000630 rising effect Effects 0.000 title claims abstract description 17
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 43
- 239000010949 copper Substances 0.000 claims abstract description 43
- 229910052802 copper Inorganic materials 0.000 claims abstract description 43
- 239000004020 conductor Substances 0.000 claims abstract description 28
- 238000009413 insulation Methods 0.000 claims description 7
- 239000000725 suspension Substances 0.000 claims description 3
- 230000006835 compression Effects 0.000 claims description 2
- 238000007906 compression Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 2
- 229910000906 Bronze Inorganic materials 0.000 description 2
- 239000010974 bronze Substances 0.000 description 2
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The invention discloses a kind of handcart switch cabinet CT rising test short-circuit devices, including test clamp, copper cash nose, two copper conductors, contact plate, active joint and anchor tip；One end alignment of two copper conductors is overlapping to be fixedly connected with one of clamp holder of test clamp by copper cash nose, and copper cash nose is used to compress two copper conductors；The other end connection contact plate of first copper conductor, active joint are located at the side of contact plate, and the diameter of contact plate is equal with the internal diameter of active joint, and the inwall of active joint is provided with internal thread；The other end of second copper conductor is connected joint, and the outer wall of anchor tip is provided with external screw thread；Active joint and anchor tip matching are equipped, and two short-circuit devices can be connected.Apparatus of the present invention are simple in construction, alternative artificial clamp, realize safe, laborsaving and reliably operate, and so as to improve relay protection professional CT examination, regular inspection and first-aid repair efficiency, reduce the working strength and potential safety hazard of staff.
Description
Technical field
The present invention relates to data and power transmission device, specifically a kind of handcart switch cabinet CT rising tests are filled with short circuit
Put.
Background technology
The existing transformer substation high voltage chamber overwhelming majority is used as low-pressure side interval using switch cubicle in a row（Including main transformer low-pressure side, electricity
Container, stand is also known as " outgoing line interval " with change, circuit outlet etc., each outlet）, pressure is surveyed also using switch in few part 35kV
Cabinet outlet form, by taking 10kV low-side switch cabinets as an example, for the transformer station that low-pressure side is multiple-limb wiring, per more one section of increases
10kV buses, its corresponding outlet can increase 6-8 outgoing line interval, and each outgoing line interval has an independent current transformer
(abbreviation CT), each CT comprise at least protection, measurement, metering totally three windings.
At present, either technological transformation overhaul, or new enlarging power engineering are checked and accepted, and CT rising tests are all very important rings
Section.Checked and accepted for newly-built or enlarging transformer station hyperbaric chamber 10kV intervals CT, it is spaced to complete institute on one section of 10kV bus
Work is flowed up, must just be flowed up one by one to each interval, per phase CT, while needs when accessing test wire to untie a copper
Insulation sleeve on row, complete one interval up-flow after, it is also necessary to by copper bar insulation sleeve recover, then carry out again next
The up-flow at individual interval.Due to cable vault's narrow space after switch cubicle, disassembly and installation is also inconvenient, and often completing an interval about needs
20 minutes are wanted, completing the spaced rising test of institute will take a substantial amount of time, and not only have impact on examination progress, increase simultaneously
The difficulty of up-flow work.
The content of the invention
The purpose of the present invention is the situation for existing rising test time and effort consuming, and provides a kind of handcart switch cabinet CT
Up-flow short-circuit device, the apparatus structure is simple, alternative artificial clamp, realizes safe, laborsaving and reliably operates, so as to carry
High relay protection professional CT examination, regular inspection and first-aid repair efficiency, reduce the working strength and potential safety hazard of staff.
Realizing the technical scheme of the object of the invention is：
A kind of handcart switch cabinet CT rising test short-circuit devices, including test clamp, copper cash nose, two copper conductors, contact plate,
Active joint and anchor tip；
One end alignment of two copper conductors is overlapping to be fixedly connected with one of clamp holder of test clamp by copper cash nose, and copper cash nose is used
In two copper conductors of compression；The other end connection contact plate of first copper conductor, active joint are located at the side of contact plate, contacted
The diameter of plate is equal with the internal diameter of active joint, and the inwall of active joint is provided with internal thread；The other end of second copper conductor connects
Anchor tip is connect, the outer wall of anchor tip is provided with external screw thread；Active joint and anchor tip matching are equipped, can be by two short circuits
Device is connected.
Insulation shell set is covered with outside two copper conductors, ensures worker safety.
The test clamp is provided with the horizontal columns of a convenient suspension, and it is nonpolar test clamp can be suspended on into current transformer
On the screw hole at end, prevent that test clamp and copper conductor weight are too heavy and slide.
In use, test clamp is used to clamp CT non-polar ends.
When carrying out handcart switch cabinet CT rising tests, lived using handcart in transformer substation high voltage chamber switch cubicle in a row
Dynamic property, it is not necessary to which compartment moves CT testers one by one, it is only necessary on the basis of an interval, then closes the handcart of base interval
Interior switch, thus the constant current of CT testers can be transferred to high voltage bus, at this time, it may be necessary to which each interval will be left
Handcart is pulled to testing position, and disconnects handcart inner breaker, while using short-circuit device the nonpolar of remaining each interval CT
CT testers are accessed after holding short circuit, so whole loop is still disconnection, as long as but wherein any one handcart is pulled to
Operating position, and the interval handcart inner breaker is closed, up-flow loop will be switched on, so as to reach test objective.
It is an advantage of the invention that：Simple in construction, cost is low, easy to use, original by by CT non-polar end short circuits, abandoning
The spaced up-flow work of institute on one section of bus is completed, the simple operations of artificial clamp are substituted using switch cabinet handcart, is realized
Safe, laborsaving and reliable operation, can safely, flexibly, it is simple carry out CT rising tests, reduce when accessing CT test wires by
The individual time for untiing the insulation sleeve on bronze medal, while reduce and complete the time that interval up-flow recovers insulation sleeve on bronze medal afterwards,
Relay protection professional CT examination, regular inspection and first-aid repair efficiency is improved, reduces the working strength and potential safety hazard of staff.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the application schematic diagram of the present invention.
In figure, 1. contact plate, 2. active joint, 3. anchor tip, 4. copper conductor 4-1., first copper conductor 4-
The test clamp 7-1. horizontal columns of 6. copper cash nose of valve jacket 7. 2. second copper conductor 5. insulate.
Embodiment
Present invention is further described with reference to the accompanying drawings and examples, but is not limitation of the invention.
Reference picture 1, a kind of handcart switch cabinet CT rising test short-circuit devices, including test clamp 7,6, two, copper cash nose
Copper conductor 4, contact plate 1, active joint 2 and anchor tip 3.
One end alignment of two copper conductors 4 is overlapping to be fixedly connected with one of clamp holder of test clamp 7 by copper cash nose 6,
Copper cash nose 6 is used to compress two copper conductors 4；First copper conductor 4-1 other end connection contact plate 1, active joint 2, which is located at, to be connect
The side of touch panel 1, the diameter of contact plate 1 is equal with the internal diameter of active joint 2, and the inwall of active joint 2 is provided with internal thread；Second
The root copper conductor 4-2 other end is connected joint 3, and the outer wall of anchor tip 3 is provided with external screw thread；Active joint 2 and fixation connect
First 3 matching is equipped, and two short-circuit devices can be connected.
Insulation shell set 5 is covered with outside two copper conductors 4, ensures worker safety.
Test clamp 7 is provided with the horizontal columns 7-1 of a convenient suspension, and test clamp 7 can be suspended on to the spiral shell of CT non-polar ends
On silk hole, prevent that test clamp 7 and copper conductor weight are too heavy and slide.
In use, test clamp 7 is used to clamp CT non-polar ends.The active joint of one short-circuit device and another short circuit
The anchor tip matching of device is equipped, two short-circuit devices can be connected, multiple short-circuit devices can be connected in series.Root
According to the needs of switch cubicle quantity in a row, the short-circuit device of respective numbers is concatenated.
Contact plate 1 is used to ensure that contact surface is good when being connected with another short-circuit device, because CT up-flows do not allow to open a way,
Therefore to ensure that two short-circuit devices contact well in connection.
Handcart is the break-up device for integrating breaker and disconnecting link, and handcart-type is also middle, mainly overhaul when its
Breaker can easily pull out maintenance, and Simultaneous Switching cabinet forms obvious fracture, and handcart has three positions：Operating position, experiment
Position and maintenance position.
Reference picture 2, switch cubicle I is such as chosen as base interval, it is necessary to carry out rising test to transformer III.Will be in a row
All handcarts are pulled to testing position in switch cubicle, and disconnect handcart inner breaker, by between the polar end access benchmark of CT testers
Every current transformer non-polar end in switch cubicle I, short circuit is left all interval CT non-polar end, and one end of shorting stub is drawn
Enter the non-polar end to current transformer calibrator, form loop.
When carrying out CT rising tests, handcart I is pulled to operating position, and closes handcart inner breaker, handcart III is pulled to
Operating position, and handcart inner breaker is closed, loop is switched on, you can carries out CT rising tests.
Claims (3)
- A kind of 1. handcart switch cabinet CT rising test short-circuit devices, it is characterised in that：Including test clamp, copper cash nose, two Copper conductor, contact plate, active joint and anchor tip；One end alignment of two copper conductors is overlapping to be fixedly connected with one of clamp holder of test clamp by copper cash nose, and copper cash nose is used In two copper conductors of compression；The other end connection contact plate of first copper conductor, active joint are located at the side of contact plate, contacted The diameter of plate is equal with the internal diameter of active joint, and the inwall of active joint is provided with internal thread；The other end of second copper conductor connects Anchor tip is connect, the outer wall of anchor tip is provided with external screw thread；Active joint and anchor tip matching are equipped, can be by two short circuits Device is connected.
- 2. handcart switch cabinet CT rising test short-circuit devices according to claim 1, it is characterised in that：Described two Insulation shell set is covered with outside copper conductor.
- 3. handcart switch cabinet CT rising test short-circuit devices according to claim 1, it is characterised in that：The experiment Folder is provided with the horizontal columns of a convenient suspension.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521032.5A CN107579471A (en) | 2016-07-05 | 2016-07-05 | A kind of handcart switch cabinet CT rising test short-circuit devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610521032.5A CN107579471A (en) | 2016-07-05 | 2016-07-05 | A kind of handcart switch cabinet CT rising test short-circuit devices |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107579471A true CN107579471A (en) | 2018-01-12 |
Family
ID=61049445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610521032.5A Pending CN107579471A (en) | 2016-07-05 | 2016-07-05 | A kind of handcart switch cabinet CT rising test short-circuit devices |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107579471A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557706A (en) * | 2020-11-27 | 2021-03-26 | 广西电网有限责任公司电力科学研究院 | Subassembly that switch box that awaits measuring was nimble to be inserted in distribution network real estate test platform |
| US11296301B2 (en) | 2018-05-11 | 2022-04-05 | Yungu (Gu'an) Technology Co., Ltd. | Display screen and method of manufacturing thereof |
-
2016
- 2016-07-05 CN CN201610521032.5A patent/CN107579471A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11296301B2 (en) | 2018-05-11 | 2022-04-05 | Yungu (Gu'an) Technology Co., Ltd. | Display screen and method of manufacturing thereof |
| CN112557706A (en) * | 2020-11-27 | 2021-03-26 | 广西电网有限责任公司电力科学研究院 | Subassembly that switch box that awaits measuring was nimble to be inserted in distribution network real estate test platform |
| CN112557706B (en) * | 2020-11-27 | 2023-03-14 | 广西电网有限责任公司电力科学研究院 | Subassembly that switch box that awaits measuring was nimble to be inserted in distribution network real estate test platform |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180112 |
|
| WD01 | Invention patent application deemed withdrawn after publication |