CN112698128A - Relay protection function verification short circuit device and method - Google Patents
Relay protection function verification short circuit device and method Download PDFInfo
- Publication number
- CN112698128A CN112698128A CN202011424040.0A CN202011424040A CN112698128A CN 112698128 A CN112698128 A CN 112698128A CN 202011424040 A CN202011424040 A CN 202011424040A CN 112698128 A CN112698128 A CN 112698128A
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- 238000012795 verification Methods 0.000 title claims abstract description 36
- 238000000034 method Methods 0.000 title claims abstract description 14
- 229910052751 metal Inorganic materials 0.000 claims abstract description 76
- 239000002184 metal Substances 0.000 claims abstract description 76
- 238000012360 testing method Methods 0.000 claims abstract description 19
- 238000010030 laminating Methods 0.000 claims description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 238000004088 simulation Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000005253 cladding Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
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Classifications
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- 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
- G01R1/0408—Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
- G01R1/0416—Connectors, terminals
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Emergency Protection Circuit Devices (AREA)
Abstract
The invention provides a relay protection function checking short circuit device for overcoming the defect that poor contact is easy to occur between a test short circuit wire and a terminal row metal screw. The testing wiring is equivalently replaced by every two short-circuit modules, the switching value signal input terminal in the short-circuit module is in short-circuit connection with the metal contact in the protection disk cabinet, the switching value signal is set to be 1 from 0, and the protection switching value signal required to be obtained in the relay protection function verification process is simulated.
Description
Technical Field
The invention relates to the field of relay protection function checking tools, in particular to a relay protection function checking short circuit device and method.
Background
When the 500kV relay protection device is subjected to function regular inspection and verification work, a professional technician needs to simulate the relay protection device to acquire a switching value input signal and can output a protection action outlet signal through relay protection internal logic calculation, so that the normal protection function of the device is ensured. For example, when the dead zone protection function of the 500kV circuit breaker is checked, a plurality of external input signals need to be simulated to the protection device, and the relay protection device sends out a protection action output signal after performing logic operation processing on the switch input signals. When a checker simulates the required input amount of the protection function action, the signal wiring required by the test is mainly connected together in short on the terminal strip of the protection cabinet through the test wiring, so that the input amount state is changed from 0 to 1.
At present, a simulation mode of switching value input signals required by protection verification is mainly realized by adopting a mode that a test short-circuit plug with the publication number of CN209544777U (published as 2019-10-25) is connected with a test wire short-circuit protection cabinet wiring terminal. However, the short circuit is tested by adopting tools such as a test short-circuit plug or a short-circuit test wire clamp, poor contact between a test short-circuit wire and a terminal strip metal screw exists, the contact resistance is large, and the like, so that the switching value cannot be shifted normally, and the protection device cannot receive a state shift signal of the protection switching-in value.
Disclosure of Invention
The invention provides a relay protection function checking short circuit device and a relay protection function checking short circuit method for overcoming the defect that poor contact is easy to occur between a test short circuit wire and a terminal block metal screw in the prior art.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the utility model provides a relay protection function check-up short circuit device, includes that metal guide arm and a plurality of connection set up the short circuit module on metal guide arm, and the short circuit module includes connecting piece and metal contact, offers on the connecting piece with the same through-hole of metal guide arm cross-sectional dimension size, the connecting piece cover establish on the metal guide arm and with the metal guide arm laminating slip setting, the metal contact setting is in the one end of connecting piece.
In the using process, each two short-circuit modules equivalently replace test wiring, the switching value signal input terminal in the protection disk cabinet is in short circuit connection through the metal contact in the short-circuit modules, the switching value signal is set from 0 to 1, and the protection switching value signal required to be obtained in the process of verifying the relay protection function is simulated.
Preferably, a spring is provided between the connector and the metal contact.
Preferably, the metal guide rod is provided with scale values.
Preferably, the device further comprises a handle, and two ends of the handle are respectively connected with two ends of the metal guide rod.
Preferably, the handle is wrapped with an insulating layer.
Preferably, the two ends of the handle are provided with clamping pieces, the two ends of the metal guide rod are provided with clamping grooves, and the clamping pieces arranged at the two ends of the handle are clamped with the clamping grooves arranged at the two ends of the metal guide rod.
Preferably, the other end face of the connecting piece is provided with a screw hole communicated with the through hole, and the connecting piece is in threaded connection with the screw hole by adopting a bolt and is fixed on the metal guide rod.
Preferably, the metal contacts are copper contacts.
Preferably, the metal guide bar is an aluminum guide bar.
A relay protection function verification short circuit method is characterized in that the relay protection function verification short circuit device provided by any technical scheme is applied, the logarithm of a short circuit module is set according to a protection input signal required by a relay protection function verification test, then a metal contact in the short circuit module is in short circuit with a switching value signal input terminal of a protection disk cabinet, the input signal is set to be 1 from 0, and the relay protection function verification short circuit is completed.
Compared with the prior art, the technical scheme of the invention has the beneficial effects that: according to the invention, a plurality of short-circuit modules are connected to the metal guide rod, every two short-circuit modules equivalently replace the original test wiring, the metal contacts in the short-circuit modules are used for short-circuit protection of the switching value signal input terminal in the disk cabinet, the short-circuit function of a plurality of switching value analog signals required by the protection device is realized, and the problem of poor contact between the test short-circuit modules and the metal screws of the terminal row can be effectively avoided.
Drawings
Fig. 1 is a schematic structural diagram of a relay protection function verification short-circuit device in embodiment 1.
Fig. 2 is a schematic structural diagram of the shorting module of embodiment 1.
Fig. 3 is a schematic structural diagram of the relay protection function verification short-circuit device in embodiment 2.
Fig. 4 is a schematic structural view of the handle of embodiment 2.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent;
for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product;
it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The technical solution of the present invention is further described below with reference to the accompanying drawings and examples.
Example 1
The embodiment provides a short-circuit device for checking a relay protection function, which is a schematic structural diagram of the short-circuit device for checking a relay protection function in the embodiment, as shown in fig. 1.
In the relay protection function verifying and shorting device provided by this embodiment, including metal guide rod 1 and a plurality of short circuit module 2 that connect and set up on metal guide rod 1, short circuit module 2 includes connecting piece 21 and metal contact 22, has seted up the through-hole the same with 1 cross-sectional dimension size of metal guide rod on the connecting piece 21, and connecting piece 21 overlaps and establishes on metal guide rod 1 and with the laminating slip of metal guide rod 1, and metal contact 22 sets up the one end at connecting piece 21.
In this embodiment, a spring 23 is disposed between the connecting member 21 and the metal contact 22, so that the metal contact 22 has scalability.
Furthermore, the other end face of the connecting piece 21 is provided with a screw hole 24 communicated with the through hole, and the connecting piece 21 is in threaded connection with the screw hole 24 by adopting a bolt 25 and fixes the connecting piece 21 on the metal guide rod 1.
Fig. 2 is a schematic structural diagram of the shorting module 2 of this embodiment.
In this embodiment, the metal guide rod 1 is provided with a scale value, and the distance between two adjacent short-circuit modules 2 can be adjusted by sliding on the metal guide rod 1 according to the scale value on the metal stopper rod.
Further, the metal contact 22 is a copper contact, and the metal guide bar 1 is an aluminum guide bar.
In the specific implementation process, the number of pairs of short-circuit modules 2 connected to a metal guide rod 1 is set according to the requirement of the simulation relay protection function verification operation, the distance between every two adjacent short-circuit modules 2 is adjusted according to the requirement of a test, then a bolt 25 is adopted to be in threaded connection with a screw hole 24 formed in a connecting piece 21, the connecting piece 21 is fixed on the metal guide rod 1, then a metal contact 22 in the short-circuit module 2 is in short-circuit connection with a switching value signal input terminal in a protection disk cabinet, the switching value signal is set to be 1 from 0, and the protection switching value signal required to be obtained in the simulation relay protection function verification is obtained.
In this embodiment, every two adjacent short-circuit modules 2 equivalently replace the test wiring, and the metal contact 22 has scalability, and good conductivity is provided between each short-circuit module 2 and the metal cutter bar, so that under the action of external force, the metal contact 22 can be in close contact with a terminal screw of the protection device, thereby ensuring good contact of the protection device with the input amount and improving the simulation success rate of the input amount signal. In addition, the required space of relay protection function check short circuit device in this embodiment is little, does not have the possibility of touching other protection wiring when carrying out short circuit work, has reduced the risk that experimental work mistake touched the circuit and leads to the protection maloperation.
Example 2
The embodiment is improved on the basis of the relay protection function verification short-circuit device provided by the embodiment 1. As shown in fig. 3, a schematic structural diagram of the relay protection function verification short-circuit device of this embodiment is shown.
In the relay protection function verifying and shorting device provided by this embodiment, including metal guide rod 1 and a plurality of short circuit module 2 that connect and set up on metal guide rod 1, short circuit module 2 includes connecting piece 21 and metal contact 22, has seted up the through-hole the same with 1 cross-sectional dimension size of metal guide rod on the connecting piece 21, and connecting piece 21 overlaps and establishes on metal guide rod 1 and with the laminating slip of metal guide rod 1, and metal contact 22 sets up the one end at connecting piece 21.
Further, the device still includes handle 3, and the both ends of handle 3 are connected with the both ends of metal guide arm 1 respectively, and is specific, and 3 both ends of handle are provided with fastener 31, and the both ends of metal guide arm 1 are provided with the draw-in groove, and the fastener 31 that the both ends of handle 3 set up and the draw-in groove joint that 1 both ends of metal guide arm set up.
Fig. 4 is a schematic structural view of the handle 3 of the present embodiment.
In a specific implementation process, an operator can carry the relay protection function verification short-circuit device to a simulation relay protection function verification operation site through the handle 3, the number of pairs of short-circuit modules 2 connected to the metal guide rod 1 is set according to simulation relay protection function verification operation requirements, the distance between every two adjacent short-circuit modules 2 is adjusted according to test requirements, then threaded connection is carried out between the bolts 25 and screw holes 24 formed in the connecting piece 21, the connecting piece 21 is fixed on the metal guide rod 1, then the metal contacts 22 in the short-circuit modules 2 are in short circuit with switching value signal input terminals in the protection disk cabinet, the switching value signal is set to be 1 from 0, and the protection switching value signal required to be obtained in the simulation relay protection function verification is obtained.
The handle 3 that adds in this embodiment is convenient for the operation personnel to carry the operation, and the cladding is provided with the insulating layer on the handle 3, avoids the operation personnel mistake to electrocute. In addition, the handle 3 is clamped with the two ends of the metal guide rod 1 through the clamping pieces 31 arranged at the two ends of the handle, the disassembly of the handle 3 is realized, and an operator can select whether to install the handle 3 according to the operation requirement.
Example 3
The embodiment provides a relay protection function short circuit checking method, which comprises the following steps:
by adopting the relay protection function verification short circuit device provided in embodiment 1 or embodiment 2, the logarithm of the short circuit module 2 is set according to a protection access signal required to be acquired in a relay protection function verification test, and then the metal contact 22 in the short circuit module 2 is in short circuit with the switching value signal input terminal of the protection disk cabinet, so that the access signal is set from 0 to 1, and the relay protection function verification short circuit is completed.
By applying the relay protection function verification short circuit method provided by the embodiment, the construction period of 500kV relay protection verification work can be shortened to three days from five days, the production efficiency is greatly improved, the power failure time of a power transmission line of a power system can be reduced, and the line availability factor is increased. By adopting the relay protection function short circuit checking method, the requirement of 500kV relay protection checking work on the number of professional technicians can be reduced, and the labor cost is reduced.
The same or similar reference numerals correspond to the same or similar parts;
the terms describing positional relationships in the drawings are for illustrative purposes only and are not to be construed as limiting the patent;
it should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. 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. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (10)
1. The utility model provides a relay protection function check-up short circuit device, its characterized in that is in including metal guide arm and a plurality of connection setting short circuit module on the metal guide arm, the short circuit module includes connecting piece and metal contact, seted up on the connecting piece with the same through-hole of metal guide arm cross-sectional dimension size, the connecting piece cover is established on the metal guide arm and with the metal guide arm laminating slides and sets up, metal contact sets up the one end of connecting piece.
2. The relay protection function verification shorting device according to claim 1, wherein a spring is arranged between the connecting piece and the metal contact.
3. The relay protection function verification short-circuit device according to claim 1, wherein a scale value is arranged on the metal guide rod.
4. The relay protection function verification short-circuit device according to claim 1, further comprising a handle, wherein two ends of the handle are respectively connected with two ends of the metal guide rod.
5. The relay protection function verification short-circuit device according to claim 4, wherein an insulating layer is coated on the handle.
6. The relay protection function verification short-circuit device according to claim 4, wherein the two ends of the handle are provided with fasteners, the two ends of the metal guide rod are provided with clamping grooves, and the fasteners arranged at the two ends of the handle are clamped with the clamping grooves arranged at the two ends of the metal guide rod.
7. The relay protection function verification short-circuit device according to claim 1, wherein a screw hole communicated with the through hole is formed in the other end face of the connecting piece, and the connecting piece is in threaded connection with the screw hole through a bolt and is fixed on the metal guide rod.
8. The relay protection function verification shorting device of claim 1, wherein the metal contacts are copper contacts.
9. The relay protection function verification shorting device according to claim 1, wherein the metal guide rod is an aluminum guide rod.
10. A relay protection function verification short circuit method is characterized in that the relay protection function verification short circuit device is applied, the logarithm of a short circuit module is set according to a protection input signal required to be obtained in a relay protection function verification test, then a metal contact in the short circuit module is in short circuit with a switching value signal input terminal of a protection disk cabinet, the input signal is set to be 1 from 0, and relay protection function verification short circuit is completed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011424040.0A CN112698128B (en) | 2020-12-08 | 2020-12-08 | Relay protection function verification short circuit device and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011424040.0A CN112698128B (en) | 2020-12-08 | 2020-12-08 | Relay protection function verification short circuit device and method |
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| Publication Number | Publication Date |
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| CN112698128A true CN112698128A (en) | 2021-04-23 |
| CN112698128B CN112698128B (en) | 2024-02-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011424040.0A Active CN112698128B (en) | 2020-12-08 | 2020-12-08 | Relay protection function verification short circuit device and method |
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| CN (1) | CN112698128B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114047364A (en) * | 2021-11-15 | 2022-02-15 | 国网四川省电力公司广安供电公司 | Batch verification platform for insulating safety tools |
| CN116774029A (en) * | 2023-06-09 | 2023-09-19 | 国网上海市电力公司 | Multifunctional relay protection calibrator without disconnecting |
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| CN207098085U (en) * | 2017-07-20 | 2018-03-13 | 中国南方电网有限责任公司超高压输电公司贵阳局 | A kind of secondary terminals self-selecting type short connector |
| CN207834803U (en) * | 2017-12-29 | 2018-09-07 | 贵州电网有限责任公司 | The quick short, crossover tool of combined type relay protection current loop |
| CN208125764U (en) * | 2018-04-18 | 2018-11-20 | 贵州电网有限责任公司 | A kind of adjustable short connector of relay protection current loop |
| CN209150431U (en) * | 2018-09-21 | 2019-07-23 | 中国南方电网有限责任公司 | It is a kind of can the current protection rectangular connector that is shorted in advance of plug |
| CN210016076U (en) * | 2019-03-26 | 2020-02-04 | 国网冀北电力有限公司检修分公司 | Current short-circuit device |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120231655A1 (en) * | 2011-03-11 | 2012-09-13 | Huang guang-li | Electrical connector |
| CN203660224U (en) * | 2014-01-08 | 2014-06-18 | 国家电网公司 | A power transformation secondary circuit terminal strip short circuit connection member |
| CN204347071U (en) * | 2014-12-09 | 2015-05-20 | 平高集团有限公司 | Secondary short circuit device is used in a kind of pouring current transformer test |
| CN205004659U (en) * | 2015-06-12 | 2016-01-27 | 安顺供电局 | Relay protection is with omnipotent terminal short circuit ware |
| CN204945183U (en) * | 2015-09-23 | 2016-01-06 | 中国长江电力股份有限公司 | A kind of multi-joint testing terminal adapter |
| CN107046214A (en) * | 2017-03-03 | 2017-08-15 | 国网山西省电力公司检修分公司 | A kind of combined normalized current terminal short-circuit tool of complete modularization |
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| CN209150431U (en) * | 2018-09-21 | 2019-07-23 | 中国南方电网有限责任公司 | It is a kind of can the current protection rectangular connector that is shorted in advance of plug |
| CN210016076U (en) * | 2019-03-26 | 2020-02-04 | 国网冀北电力有限公司检修分公司 | Current short-circuit device |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114047364A (en) * | 2021-11-15 | 2022-02-15 | 国网四川省电力公司广安供电公司 | Batch verification platform for insulating safety tools |
| CN114047364B (en) * | 2021-11-15 | 2023-09-15 | 国网四川省电力公司广安供电公司 | Batch verification platform for insulating safety tools |
| CN116774029A (en) * | 2023-06-09 | 2023-09-19 | 国网上海市电力公司 | Multifunctional relay protection calibrator without disconnecting |
| CN116774029B (en) * | 2023-06-09 | 2024-06-04 | 国网上海市电力公司 | Multifunctional relay protection calibrator without disconnecting |
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| Publication number | Publication date |
|---|---|
| CN112698128B (en) | 2024-02-23 |
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