CN113109597A - Automatic 10kV circuit breaker short-circuit connection device for alternating-current voltage withstand test of reporting to police - Google Patents

Automatic 10kV circuit breaker short-circuit connection device for alternating-current voltage withstand test of reporting to police Download PDF

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Publication number
CN113109597A
CN113109597A CN202110517892.2A CN202110517892A CN113109597A CN 113109597 A CN113109597 A CN 113109597A CN 202110517892 A CN202110517892 A CN 202110517892A CN 113109597 A CN113109597 A CN 113109597A
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CN
China
Prior art keywords
alarm
module
wire
circuit
pulse
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.)
Pending
Application number
CN202110517892.2A
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Chinese (zh)
Inventor
王伟平
何炳锋
梁智康
梁国坚
李新海
张志强
陈英杰
产启中
陈勇
徐智皓
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Power Grid Co Ltd
Zhongshan Power Supply Bureau of Guangdong Power Grid Co Ltd
Original Assignee
Guangdong Power Grid Co Ltd
Zhongshan Power Supply Bureau of Guangdong Power Grid Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangdong Power Grid Co Ltd, Zhongshan Power Supply Bureau of Guangdong Power Grid Co Ltd filed Critical Guangdong Power Grid Co Ltd
Priority to CN202110517892.2A priority Critical patent/CN113109597A/en
Publication of CN113109597A publication Critical patent/CN113109597A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R1/00Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
    • G01R1/02General constructional details
    • G01R1/04Housings; Supporting members; Arrangements of terminals
    • G01R1/0408Test fixtures or contact fields; Connectors or connecting adaptors; Test clips; Test sockets
    • G01R1/0416Connectors, terminals
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/12Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/327Testing of circuit interrupters, switches or circuit-breakers
    • G01R31/3271Testing of circuit interrupters, switches or circuit-breakers of high voltage or medium voltage devices
    • G01R31/3272Apparatus, systems or circuits therefor
    • G01R31/3274Details related to measuring, e.g. sensing, displaying or computing; Measuring of variables related to the contact pieces, e.g. wear, position or resistance

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Breakers (AREA)

Abstract

The application discloses automatic 10kV circuit breaker alternating current withstand voltage of reporting to police short-circuit connection device for experiment includes: a plurality of wire clamps and an alarm; the alarm is electrically connected with the wire clamp; the wire clamp is used for being connected with a wire through clamping; the alarm comprises an induction module, a pulse module and an alarm module; the induction module is used for triggering the pulse module when the voltage of the circuit where the lead is induced to be zero is induced; the pulse module is used for sending a falling edge pulse to the alarm module after being triggered; the alarm module is used for giving an alarm after receiving the falling edge pulse. The problem that the silver coating on the surface of the lead is easily damaged in the existing lead winding connection mode can be avoided by arranging the wire clamp to connect the lead; meanwhile, when the withstand voltage test is finished, the pulse module sends a falling edge pulse to trigger the alarm module to give an alarm at the moment when the circuit voltage is reduced to zero through the alarm, so that a tester is reminded of timely removing the three-phase short circuit after the work is finished, and the three-phase short circuit equipment accident caused by forgetting to remove the circuit is prevented.

Description

Automatic 10kV circuit breaker short-circuit connection device for alternating-current voltage withstand test of reporting to police
Technical Field
The application relates to the technical field of insulation detection devices, in particular to an automatic alarm short-circuit connection device for an alternating-current voltage withstand test of a 10kV circuit breaker.
Background
In a 10kV circuit breaker handover test or a preventive test, besides conventional test items such as loop resistance and insulation resistance, an important insulation detection item, namely an alternating current withstand voltage test, needs to be carried out to check whether the insulation strength of the tested equipment meets the requirements.
Because the alternating-current withstand voltage test is a destructive test item, in order to reduce the repeated pressurization times of the equipment and check the insulation strength of the equipment more strictly, the 10kV circuit breaker is generally tested by adopting a three-phase short circuit, namely the three phases need to be short-circuited before the test. At present, the short-circuit mode used in the alternating current withstand voltage test is mainly a fuse or a bare copper wire, and the short-circuit mode has three problems: firstly, the short connecting wire is dark in color and is not easy to attract attention; if the breaker with the short-circuit line is forgotten to be removed and left on equipment after the test work is finished, the breaker with the short-circuit line is fed with electricity, so that a three-phase short-circuit accident is easily caused, and a great equipment and power grid safety accident is caused. And secondly, the traditional fuse or bare copper wire is wound on the contact of the circuit breaker in a winding mode, if the traditional fuse or bare copper wire is not noticed, a silver-plated conducting layer on the contact is easily scratched, and a contact finger spring or deformation is possibly damaged in the winding process, so that the contact resistance of a moving contact and a static contact is increased, and the equipment has the hidden trouble of abnormal heating in operation. And thirdly, the winding mode is adopted to realize short circuit, especially, the space of some XGN cabinet type circuit breakers is narrow, the winding of the short circuit by bending the body for a long time is not beneficial to human-machine efficacy, and the working efficiency is low.
Disclosure of Invention
In view of this, the application aims to provide an automatic alarm short-circuit connection device for an alternating-current withstand voltage test of a 10kV circuit breaker, which is used for solving the problems that in the alternating-current withstand voltage test, a contact is easily damaged in the existing short-circuit connection mode, and the potential safety hazard of short-circuit accidents caused by forgetting to remove the short-circuit connection device exists.
In order to reach above-mentioned technical purpose, this application provides an automatic 10kV circuit breaker short-circuit connection device for withstand voltage test of reporting to police, includes: a plurality of wire clamps and an alarm;
the alarm is electrically connected with the wire clamp;
the wire clamp is used for being connected with a wire through clamping;
the alarm comprises an induction module, a pulse module and an alarm module;
the sensing module is used for triggering the pulse module when sensing that the voltage of a circuit where the lead is located is zero;
the pulse module is used for sending a falling edge pulse to the alarm module after being triggered;
the alarm module is used for giving an alarm after receiving the falling edge pulse.
Preferably, the clamp of the wire clamp for contacting the wire is made of copper material.
Preferably, the wire winding device further comprises a wire winding device;
the wire rewinding device is arranged between the adjacent wire clamps and used for adjusting the length of a wire between the adjacent wire clamps.
Preferably, the wire rewinding device comprises an outer shell;
the outer shell is made of plastic transparent materials.
Preferably, the alarm module is specifically a light alarm module or a buzzer alarm module.
According to above technical scheme, this application provides an automatic 10kV circuit breaker alternating current withstand voltage of reporting to police short-circuit connection device for experiment, includes: a plurality of wire clamps and an alarm; the alarm is electrically connected with the wire clamp; the wire clamp is used for being connected with a wire through clamping; the alarm comprises an induction module, a pulse module and an alarm module; the sensing module is used for triggering the pulse module when sensing that the voltage of a circuit where the lead is located is zero; the pulse module is used for sending a falling edge pulse to the alarm module after being triggered; the alarm module is used for giving an alarm after receiving the falling edge pulse. The problem that the silver coating on the surface of the lead is easily damaged in the existing lead winding connection mode can be avoided by arranging the wire clamp to connect the lead; meanwhile, when the withstand voltage test is finished, the pulse module sends a falling edge pulse to trigger the alarm module to give an alarm at the moment when the circuit voltage is reduced to zero through the alarm, so that a tester is reminded of timely removing the three-phase short circuit after the work is finished, and the three-phase short circuit equipment accident caused by forgetting to remove the circuit is prevented. And after the short circuit wire is taken down, the alarm signal is relieved by adopting a manual reset button, so that preparation is made for the short circuit of the next withstand voltage test.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is a schematic diagram of a short-circuit connection device for an automatic alarm 10kV circuit breaker ac withstand voltage test provided in an embodiment of the present application;
in the figure: 1. wire clamps; 2. a wire rewinding device; 3. an alarm; 4. and (4) conducting wires.
Detailed Description
The technical solutions of the embodiments of the present application will be described clearly and completely with reference to the accompanying drawings, and it is to be understood that the described embodiments are some, but not all embodiments of the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the scope of protection claimed herein.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The embodiment of the application discloses automatic alarm's 10kV circuit breaker short-circuit connection device for withstand voltage test.
Referring to fig. 1, an automatic alarm short-circuit device for an ac withstand voltage test of a 10kV circuit breaker provided in an embodiment of the present application includes: a plurality of wire clamps 1 and an alarm 3; the alarm 3 is electrically connected with the wire clamp 1; the wire clamp 1 is used for being connected with a wire 4 through clamping; the wire clamp 1 is connected with the wire 4, so that the wire clamp can be in good contact with the wire 4 of the tested equipment, and can prevent the silver coating on the surface of the wire 4 from being damaged.
Specifically, the wire clamp 1 can be designed into an electrical wide-mouth clamp shape, adopts a copper material, and is not easy to oxidize and rust.
The alarm comprises an induction module, a pulse module and an alarm module; the induction module is used for triggering the pulse module when the voltage of the circuit where the lead 4 is induced to be zero is induced; the pulse module is used for sending a falling edge pulse to the alarm module after being triggered; the alarm module is used for giving an alarm after receiving the falling edge pulse.
Specifically, the 10kV high-voltage circuit breaker is used as the most important control and protection equipment in a system, and an alternating-current withstand voltage test is required in a handover test and a preventive test to check whether the insulation strength of the tested equipment meets the requirements or not; in the experiment, the 10kV circuit breaker is generally tested by adopting a three-phase short circuit, namely the three-phase short circuit is required before the test. This device is through setting up alarm 3, when utilizing the withstand voltage test of interchange to end, the response module senses the voltage reduction of circuit and is zero the moment, and the trigger pulse module sends and descends to trigger alarm module along pulse and send alarm signal, reminds testing personnel work to remove the three-phase short circuit in time after accomplishing, prevents to cause the three-phase short circuit equipment accident because of omitting. After the wire clamp 1 is taken down, an alarm signal of the alarm module can be relieved by adopting a manual reset button, and preparation is made for short connection of the next withstand voltage test.
As a further improvement, the wire winding machine also comprises a wire winding device 2; the wire rewinding device 2 is arranged between the adjacent wire clamps 1 and used for adjusting the length of the wire 4 between the adjacent wire clamps 1, and field wiring is facilitated.
Further, the wire rewinding device 2 comprises an outer shell; the outer shell is made of plastic transparent materials, so that the weight can be reduced, and the surface condition of the internal lead 4 can be observed.
Furthermore, the alarm module is specifically a light alarm module or a buzzing alarm module, and a reset button is arranged in the alarm module, so that the alarm module can reset after the three-phase short circuit is removed.
Compare in current mode of connection, adopt the automatic alarm's that this application provides 10kV circuit breaker short-circuit connection device for withstand voltage test, only need clip the joint of circuit breaker respectively with fastener 1 in the experiment, required time compares significantly reduced with conventional winding short circuit to hidden danger such as scratch contact silvering conducting layer has been eliminated, and the risk of three-phase short circuit accident when eliminating traditional approach and arousing equipment to reply electricity because of forgetting to demolish the wiring.
Although the present application has been described in detail with reference to examples, it will be apparent to those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the scope of the present application.

Claims (5)

1. The utility model provides an automatic 10kV circuit breaker short wiring device for withstand voltage test that reports to police which characterized in that includes: the wire clamp and the alarm;
the alarm is electrically connected with the wire clamp;
the wire clamp is used for being connected with a wire in a clamping mode;
the alarm comprises an induction module, a pulse module and an alarm module;
the sensing module is used for triggering the pulse module when sensing that the voltage of a circuit where the lead is located is zero;
the pulse module is used for sending a falling edge pulse to the alarm module after being triggered;
the alarm module is used for sending out an alarm after receiving the falling edge pulse.
2. The automatic alarm 10kV breaker AC withstand voltage test shorting stub according to claim 1, wherein the wire clamp comprises a clamp for contacting the wire;
the chuck is made of copper materials.
3. The automatic alarm short-circuit device for the alternating-current withstand voltage test of the 10kV circuit breaker according to claim 1, further comprising a wire rewinding device;
the number of the wire clamps is at least two;
the wire rewinding device is arranged between the adjacent wire clamps and used for adjusting the length of a wire between the adjacent wire clamps.
4. The automatic alarm short-circuit device for the alternating-current withstand voltage test of the 10kV circuit breaker according to claim 3, wherein the wire rewinding device comprises an outer shell;
the outer shell is made of plastic transparent materials.
5. The automatic alarm short-circuit device for the alternating-current withstand voltage test of the 10kV circuit breaker according to claim 1, wherein the alarm module is specifically a light alarm module or a buzzer alarm module.
CN202110517892.2A 2021-05-12 2021-05-12 Automatic 10kV circuit breaker short-circuit connection device for alternating-current voltage withstand test of reporting to police Pending CN113109597A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110517892.2A CN113109597A (en) 2021-05-12 2021-05-12 Automatic 10kV circuit breaker short-circuit connection device for alternating-current voltage withstand test of reporting to police

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110517892.2A CN113109597A (en) 2021-05-12 2021-05-12 Automatic 10kV circuit breaker short-circuit connection device for alternating-current voltage withstand test of reporting to police

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Publication Number Publication Date
CN113109597A true CN113109597A (en) 2021-07-13

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CN202110517892.2A Pending CN113109597A (en) 2021-05-12 2021-05-12 Automatic 10kV circuit breaker short-circuit connection device for alternating-current voltage withstand test of reporting to police

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113533920A (en) * 2021-09-13 2021-10-22 广东电网有限责任公司中山供电局 Automatic withstand voltage test device and method for insulating partition plate

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05145465A (en) * 1991-11-19 1993-06-11 Kokusai Electric Co Ltd Portable radio equipment with discharge end notice function
JPH098726A (en) * 1995-06-23 1997-01-10 Kokusai Electric Co Ltd Radio call receiver and control method for same
JP2005037200A (en) * 2003-07-18 2005-02-10 Toshiba Plant Systems & Services Corp Live line alarm
CN203909097U (en) * 2014-05-08 2014-10-29 国家电网公司 Electric shock prevention high-voltage test alarm wire clamp
CN207795623U (en) * 2017-12-20 2018-08-31 郑州舒柯科技有限公司 A kind of electric fan fault alarm
CN208127461U (en) * 2018-04-26 2018-11-20 广东电网有限责任公司 Short-circuit device and short circuit system
CN210487906U (en) * 2019-07-12 2020-05-08 华能荆门热电有限责任公司 Locking type high-voltage switch voltage-withstanding test short-circuit device
CN112577646A (en) * 2020-10-21 2021-03-30 贵州电网有限责任公司 Mutual inductor wiring forgetting-prevention alarm device
CN112582854A (en) * 2020-11-04 2021-03-30 国网浙江省电力有限公司金华供电公司 Intelligent grounding wire clamp misoperation prevention device

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH05145465A (en) * 1991-11-19 1993-06-11 Kokusai Electric Co Ltd Portable radio equipment with discharge end notice function
JPH098726A (en) * 1995-06-23 1997-01-10 Kokusai Electric Co Ltd Radio call receiver and control method for same
JP2005037200A (en) * 2003-07-18 2005-02-10 Toshiba Plant Systems & Services Corp Live line alarm
CN203909097U (en) * 2014-05-08 2014-10-29 国家电网公司 Electric shock prevention high-voltage test alarm wire clamp
CN207795623U (en) * 2017-12-20 2018-08-31 郑州舒柯科技有限公司 A kind of electric fan fault alarm
CN208127461U (en) * 2018-04-26 2018-11-20 广东电网有限责任公司 Short-circuit device and short circuit system
CN210487906U (en) * 2019-07-12 2020-05-08 华能荆门热电有限责任公司 Locking type high-voltage switch voltage-withstanding test short-circuit device
CN112577646A (en) * 2020-10-21 2021-03-30 贵州电网有限责任公司 Mutual inductor wiring forgetting-prevention alarm device
CN112582854A (en) * 2020-11-04 2021-03-30 国网浙江省电力有限公司金华供电公司 Intelligent grounding wire clamp misoperation prevention device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113533920A (en) * 2021-09-13 2021-10-22 广东电网有限责任公司中山供电局 Automatic withstand voltage test device and method for insulating partition plate
CN113533920B (en) * 2021-09-13 2022-01-25 广东电网有限责任公司中山供电局 Automatic withstand voltage test device and method for insulating partition plate

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Application publication date: 20210713

RJ01 Rejection of invention patent application after publication