CN109031108A - A kind of auxiliary device and method for not dismantling SF6 density monitor rapid verification - Google Patents
A kind of auxiliary device and method for not dismantling SF6 density monitor rapid verification Download PDFInfo
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- CN109031108A CN109031108A CN201810784173.5A CN201810784173A CN109031108A CN 109031108 A CN109031108 A CN 109031108A CN 201810784173 A CN201810784173 A CN 201810784173A CN 109031108 A CN109031108 A CN 109031108A
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- 238000012795 verification Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 13
- 238000012360 testing method Methods 0.000 claims abstract description 31
- 238000005259 measurement Methods 0.000 claims abstract description 24
- 238000004891 communication Methods 0.000 claims description 26
- 230000005611 electricity Effects 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 4
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 238000010998 test method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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
- G01R31/327—Testing of circuit interrupters, switches or circuit-breakers
Abstract
The present invention provides a kind of auxiliary device and method for not dismantling SF6 density monitor rapid verification, is related to the technical field of SF6 density monitor verification.The device includes first control unit, voltage measurement module and the first relay.This method is to test the voltage at tested density monitor both ends, and the voltage value tested is sent to control unit；Control unit judges the connection point on-off state of tested density monitor by receiving voltage value, and according to the on off operating mode situation of contact, a control signal is issued to the relay with passive output contact, the on off operating mode signal of contact is sent to density relay checking instrument in passive form by the relay, density relay checking instrument routinely form feedback test value.The device of the invention can have the function of conveyer belt electric contact status signal, realize and do not dismantle the purpose that density monitor carries out electrification verification by the conversion of electrification contact state without electric contact.
Description
[technical field]
The present invention relates to the technical fields of SF6 density monitor verification, and in particular to one kind does not dismantle SF6 density monitor
The auxiliary device and auxiliary test methods of rapid verification.
[background technique]
Related regulation is safeguarded according to breaker, and need to carry out following action in breaker maintenance: (1) breaker SF6 is close
The verification of relay is spent, the function and corresponding pressure-operated value of gas density relay alarm, locking are examined；(2) hydraulic
Breaker also needs verification breaker pressure switch action checking verification, such as leaks nitrogen alarm, pump start, oil pump stopping, reclosing
The pressure value of locking, closing locking and separating brake locking etc..
When carrying out above-mentioned work, there are the following problems:
(1) SF6 breaker density monitor verifies
At the scene in maintenance, in the case of existing SF6 density relay checking instrument requires uncharged state verification or takes out stitches
Maintenance, if having the following disadvantages: 1. disconnection observing and controlling and control power supply, remaining professional teams and groups may need to control and observing and controlling power supply,
The work that will affect remaining teams and groups to a certain degree, reduces whole work efficiency.2. between the density monitor contact of some models
There is oil film, need that break-make situation could be detected in the case where electrification, if instrument cannot be detected correctly in the case where no-voltage
To connection point on-off situation, can not measure.3. being only capable of detecting single density monitor ontology contact dynamic if under power blackout situation
Make situation, it can not whole effect switch SF6 low pressure locked loop function.The verification of SF6 density monitor action value and entire
The verification of return circuit needs separately to carry out, and increases work step, reduces working efficiency.
(2) alarm of hydraulic breaker pressure switch, locking definite value and functional check
Hydraulic overhaul of line breaker needs alarm, locking definite value and the function of effect pressure switch, it is desirable that an operation people
Member observes oil pressure tabular value, the action situation of another operation monitored by personnel's correlation relay in Operation switch relief valve pressure release
And transmit the reading that pressure value is carried out to pressure release personnel.There are the following problems for this operational method:
1. oil pressure alarm, locking relay are focused in central console since oil pressure gauge split-phase is installed, therefore, completing should
Two operating personnels of work adhere to different operating locations separately, can not accomplish complete seamless co-operation.By two person's development times
Afterwards often pressure value reading can lag it is not accurate enough.
2. scene there is also other working faces, the presence of other sound will affect the communication of two people sometimes, exist miss it is dynamic
The case where putting needs to be repeated, and influences working efficiency.
Do not have live detection function, signal for above-mentioned existing instrument and there is communication at a distance from pressure control point
Inconvenient situation, so as to cause work quality and inefficient problem, it is necessary to existing SF6 density relay checking instrument
It improves.
[summary of the invention]
Goal of the invention of the invention is: in view of the above problems, providing that a kind of not dismantle SF6 density monitor fast
The auxiliary device and auxiliary test methods of speed verification, the device of the invention can be by the conversions of electrification contact state without electric contact, tool
There is the function of conveyer belt electric contact status signal, realizes and do not dismantle the purpose that SF6 density monitor carries out electrification verification.
To achieve the goals above, The technical solution adopted by the invention is as follows:
A method of not dismantling SF6 density monitor rapid verification, specifically: test tested SF6 density monitor two
The voltage value tested is sent to control unit by the voltage at end；Described control unit is by receiving voltage value to tested SF6
The connection point on-off state of density monitor judges, and according to the on off operating mode situation of contact, to passive output contact
Relay issue a control signal, the on off operating mode signal of contact is sent in passive form by the relay
SF6 density relay checking instrument, the SF6 density relay checking instrument routinely form feedback test value.
The above-mentioned method for not dismantling SF6 density monitor rapid verification, the auxiliary device relied on, comprising: subtest
Module, the subtest module include first control unit, voltage measurement module and the first relay；
The test lead of the voltage measurement module connects the contact both ends of tested SF6 density monitor, voltage measurement module
Output end connect the input terminal of the first control unit, voltage measurement module is for testing tested SF6 density monitor two
The voltage value tested simultaneously is sent to first control unit by the voltage at end；
The first control unit is used to receive the voltage value of voltage measurement module output, is tested according to voltage value judgement close
The on off operating mode of relay tip is spent, and control signal is issued to first relay according to the on off operating mode of the contact；
First relay is connected to the output end of the first control unit, and one group or more is arranged on the first relay
The passive output contact of group, the passive output contact are used for Connection Density relay checking instrument.
In the present invention, more preferably, the voltage measurement module includes alternating voltage test module and/or vdct
Module.
To make the present invention facilitate the alarm of hydraulic breaker pressure switch, locking definite value and functional check, further,
Described device further includes remote display modules, and the remote display modules include the second control unit, the second wireless communication module
And display screen, second wireless communication module and display screen are connect with second control unit；First control is single
Member is also connected with the first wireless communication module；The first control unit and the second control unit pass through the first radio communication mold
Block, the second wireless communication module carry out wireless communication.
More preferably, the remote display modules further include auditory tone cues module, the auditory tone cues module and described second
Control unit connection.
More preferably, the display screen is used to show connecing for voltage value that voltage measurement module is tested and density monitor
Dotted state.
More preferably, the first control unit and the second control unit are all made of single-chip microcontroller.
More preferably, the subtest module and remote display modules are powered by rechargable power supplies.
In conclusion by adopting the above-described technical solution, the beneficial effects of the present invention are:
1, existing density monitor needs uncharged state verification or overhauls in the case of taking out stitches, troublesome in poeration and influence it
The work of his teams and groups, and the density monitor with oil film cannot be detected, there is the present invention by testing tested SF6 density monitor two
The voltage at end judges the on off operating mode situation of contact according to voltage value, then that the state status for having source contact measured is same
Step output corresponding states without source contact, no source contact is connect with SF6 density relay checking instrument, SF6 density monitor verify
Instrument receives after the signal of no source contact that routinely form feedback test value, the present invention are realized not with simple method and structure
Disassembly SF6 density monitor is verified, and can be greatlyd save checking time and be improved working efficiency, and the auxiliary device can also make
Tester verifies the density monitor with oil film.
2, the present invention is also by setting remote display modules, and remote display modules and subtest module are by wireless communication
Module communicates, and the voltage value by test to density monitor both ends is synchronous with contact state situation to be shown by display screen,
By the Simultaneous Monitoring and display to different location state, it can be achieved that hydraulic breaker press contact more accurately verifies, mention
Rise the efficiency and quality of verification.
3, assistant apparatus structure of the invention is simple, low manufacture cost, and application method is simple and easy, be suitable for it is various close
Degree relay checking instrument matches, without being improved to existing apparatus, big excellent of and purposes simple with structure
Gesture, popularizing value with higher.
[Detailed description of the invention]
Fig. 1 is the control principle drawing of auxiliary device of the invention.
Fig. 2 is the planar structure schematic diagram of auxiliary device of the invention.
Wherein, 1- subtest module, 11- alternating voltage p-wire, 12- vdct line, the first power supply of 13- are pressed
Button, the passive output contact of 14-；2- remote display modules, 21- display screen, 22- auditory tone cues module, 23- second source button.
[specific embodiment]
In order to more clearly express the present invention, the present invention is made furtherly below by way of specific embodiment combination attached drawing
It is bright.
Based on existing SF6 density relay checking instrument when being verified, carried out after needing to dismantle density monitor
Verification, normal work that is more time-consuming and influencing other stations, the present invention can be used as existing SF6 density monitor verification
The supplementary module of instrument realizes the electrification verification of SF6 density monitor, promotes the safety and efficiency of work.
In the present invention, a method of not dismantling SF6 density monitor rapid verification, specifically: test tested SF6 density
The voltage value tested is sent to control unit by the voltage at relay both ends；Described control unit is by receiving voltage value
The connection point on-off state of tested SF6 density monitor is judged, and according to the on off operating mode situation of contact, to passive
The relay of output contact issues a control signal, by the relay by the on off operating mode signal of contact with passive shape
Formula is sent to SF6 density relay checking instrument, the SF6 density relay checking instrument routinely form feedback test value.
In order to facilitate the understanding of the present invention, now control principle of the invention is illustrated, referring to Fig. 1, for the present invention
Control principle drawing, which includes subtest module 1 first, which includes that the first control is single
Member, voltage measurement module and the first relay；Wherein:
Input terminal, that is, test lead of the voltage measurement module is used to connect the contact both ends of tested SF6 density monitor,
The output end of voltage measurement module connects the input terminal of the first control unit, and voltage measurement module is for testing tested SF6
The voltage value tested simultaneously is sent to first control unit by the voltage at density monitor both ends；Voltage measurement module can use
Voltmeter can choose according to the type of tested density monitor with alternating voltage test module or vdct mould
The voltmeter of block, but in order to which the applicability of the auxiliary device is wider, it is preferred to use not only there is alternating voltage test module but also had
There is the voltmeter of vdct module.
The first control unit is used to receive the voltage value of voltage measurement module output, is tested according to voltage value judgement close
The on off operating mode of relay tip is spent, and control signal is issued to first relay according to the on off operating mode of the contact；
Specifically, first control unit is realized using single-chip microcontroller, since functional requirement of the present invention to single-chip microcontroller is relatively simple, Gu Shi
Most single-chip microcontrollers can realize the present invention on face, herein without enumerating.The on-off of contact is judged according to voltage value,
It specifically refers to, when the voltage value at test to tested density monitor both ends is zero, illustrates that the contact of tested density monitor is
The state of disconnection illustrates connecing for tested density monitor when the voltage value at test to tested density monitor both ends is not zero
Point is the state of conducting.
First relay is connected to the output end of the first control unit, and one group or more is arranged on the first relay
The passive output contact of group, the passive output contact are used for Connection Density relay checking instrument.
To make the present invention facilitate the alarm of hydraulic breaker pressure switch, locking definite value and functional check, further,
Described device further includes remote display modules 2, and with continued reference to Fig. 2, the remote display modules 2 include the second control unit, the
Two wireless communication modules and display screen 21, second wireless communication module and display screen 21 connect with second control unit
It connects；The first control unit is also connected with the first wireless communication module；The first control unit and the second control unit are logical
Cross the first wireless communication module, the second wireless communication module carries out wireless communication.Second control unit realized using single-chip microcontroller,
Since functional requirement of the present invention to single-chip microcontroller is relatively simple, therefore the single-chip microcontroller of the overwhelming majority can realize this hair on the market
It is bright, herein without enumerating.Display screen 21 uses liquid crystal display 21, the voltage tested for showing voltage measurement module
The contact state of value and density monitor.Two wireless communication modules use high-speed radiocommunication, stablize 30 meters of telecommunication
More than, can meet the needs of substation's inner breaker maintenance.In addition, the remote display modules 2 can also include auditory tone cues
Module 22, auditory tone cues module 22 are connect with second control unit, and auditory tone cues module 22 can be as needed different
Prompt tone is issued under state.
As shown in Fig. 2, can be used as a kind of design form of auxiliary device of the invention when implementing, wherein subtest
Module 1 and remote display modules 2 be it is split type, the two carries out nothing by the first wireless communication module and the second wireless communication module
Line communication, inside setting first control unit, voltage measurement module and the first relay of subtest module 1.Subtest
The p-wire of the external setting voltage measurement module of module 1, p-wire are arranged two groups, respectively alternating voltage p-wire 11 and straight
Galvanic electricity presses p-wire 12；The passive output contact 14 of the first relay is also set up outside it, is used for Connection Density relay checking
The signal terminal of instrument.In addition, the subtest module 1 can be powered by rechargable power supplies according to conventional design, it is convenient for carrying,
It can fill and use simultaneously, and the first power knob 13 is set outside subtest module 1.
With continued reference to Fig. 2, the second control unit, the second wireless communication module are set, and outside is set inside remote display modules 2
Display screen 21, auditory tone cues module 22 are set, equally, which can be powered by rechargable power supplies, it is convenient for carrying,
It can fill and use simultaneously, and second source button 23 is set outside subtest module 1.
When carrying out the verification of SF6 density monitor using the present invention, by the vdct outside subtest module 1
Line 12 accesses SF6 low pressure locking relay contact both ends, and SF6 density relay checking instrument p-wire is accessed the first relay
Passive output contact 14, thus can realize SF6 density monitor electrification verification.When test, voltage test module test
The voltage at tested SF6 density monitor both ends, and the voltage value tested is sent to first control unit；First control
Unit judges the connection point on-off state of tested SF6 density monitor by receiving voltage value, and according to the logical of contact
Disconnected state status issues a control signal to the relay with passive output contact, will be connect by first relay
The on off operating mode signal of point is sent to SF6 density relay checking instrument, the SF6 density relay checking instrument in passive form
Routinely form feedback test value.Specifically, when the voltage value at test to tested density monitor both ends is zero, illustrate quilt
The contact for surveying density monitor is the state disconnected.When the voltage value at test to tested density monitor both ends is not zero, say
The contact of bright tested density monitor is the state of conducting, and first control unit makes the coil of the first relay be powered at this time, the
The passive output contact of one relay is connected, to give one signal of density relay checking instrument, density relay checking instrument is pressed
Conventionally form feedback test value is such as latched recovery value or alarm recovery value, the not belt removal to density monitor can be realized
Electricity verification.
When carrying out the alarm of hydraulic breaker pressure switch, locking definite value and functional check using the present invention, one
Operating personnel holds subtest module 1 of the invention, and the alternating voltage p-wire 11 outside subtest module 1 is accessed
SF6 density relay checking instrument p-wire is accessed the passive defeated of the first relay by SF6 low pressure locking relay contact both ends
Contact 14 out, the action situation of monitored density relay；At the same time, another operating personnel holds long-range display of the invention
Module 2 can view the voltage value of the display of display screen 21 and the contact state of density monitor, side Operation switch pressure release immediately
Oil pressure tabular value is observed on valve pressure release side, and when relay tip is connected, auditory tone cues module 22 issues voice prompt, pressure release personnel
Carry out the reading of pressure value.
Above description is the detailed description for the present invention preferably possible embodiments, but embodiment is not limited to this hair
Bright patent claim, it is all the present invention suggested by technical spirit under completed same changes or modifications change, should all belong to
In the covered the scope of the patents of the present invention.
Claims (8)
1. the method that one kind does not dismantle SF6 density monitor rapid verification, which is characterized in that the method are as follows: test tested SF6
The voltage value tested is sent to control unit by the voltage at density monitor both ends；Described control unit is by receiving electricity
Pressure value judges the connection point on-off state of tested SF6 density monitor, and according to the on off operating mode situation of contact, to having
The relay of passive output contact issues a control signal, by the relay by the on off operating mode signal of contact with passive
Form be sent to SF6 density relay checking instrument, the SF6 density relay checking instrument routinely form feedback test value.
2. the auxiliary device that one kind does not dismantle SF6 density monitor rapid verification, it is characterised in that: the auxiliary device includes auxiliary
Test module is helped, the subtest module includes first control unit, voltage measurement module and the first relay；
The test lead of the voltage measurement module connects the contact both ends of tested SF6 density monitor, voltage measurement module it is defeated
Outlet connects the input terminal of the first control unit, and voltage measurement module is for testing tested SF6 density monitor both ends
The voltage value tested simultaneously is sent to first control unit by voltage；
The first control unit is used to receive the voltage value of voltage measurement module output, according to voltage value judge tested density after
The on off operating mode of electric appliance contact, and control signal is issued to first relay according to the on off operating mode of the contact；
First relay is connected to the output end of the first control unit, and one or more groups of nothings are arranged on the first relay
Source output contact, the passive output contact are used for Connection Density relay checking instrument.
3. the auxiliary device according to claim 2 for not dismantling SF6 density monitor rapid verification, it is characterised in that: institute
Stating voltage measurement module includes alternating voltage test module and/or vdct module.
4. the auxiliary device according to claim 2 for not dismantling SF6 density monitor rapid verification, it is characterised in that: institute
Stating device further includes remote display modules, the remote display modules include the second control unit, the second wireless communication module and
Display screen, second wireless communication module and display screen are connect with second control unit；The first control unit
It is also connected with the first wireless communication module；The first control unit and the second control unit by the first wireless communication module,
Second wireless communication module carries out wireless communication.
5. the auxiliary device according to claim 4 for not dismantling SF6 density monitor rapid verification, it is characterised in that: institute
Stating remote display modules further includes auditory tone cues module, and the auditory tone cues module is connect with second control unit.
6. the auxiliary device according to claim 4 for not dismantling SF6 density monitor rapid verification, it is characterised in that: institute
State the contact state of voltage value and density monitor that display screen is used to show that voltage measurement module is tested.
7. the auxiliary device according to claim 2 for not dismantling SF6 density monitor rapid verification, it is characterised in that: institute
It states first control unit and the second control unit is all made of single-chip microcontroller.
8. the auxiliary device according to claim 2 for not dismantling SF6 density monitor rapid verification, it is characterised in that: institute
Subtest module and remote display modules are stated to power by rechargable power supplies.
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| CN201810784173.5A CN109031108A (en) | 2018-07-17 | 2018-07-17 | A kind of auxiliary device and method for not dismantling SF6 density monitor rapid verification |
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| CN201810784173.5A CN109031108A (en) | 2018-07-17 | 2018-07-17 | A kind of auxiliary device and method for not dismantling SF6 density monitor rapid verification |
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Cited By (10)
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| CN109521360A (en) * | 2018-12-28 | 2019-03-26 | 广东电网有限责任公司 | Relay contact signal detection apparatus and system |
| CN110411891A (en) * | 2019-09-04 | 2019-11-05 | 上海乐研电气有限公司 | Realize the non-maintaining on-site detecting device of gas density relay, system and method |
| CN110426313A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system with line diagnosis function |
| CN110542453A (en) * | 2019-09-04 | 2019-12-06 | 上海卓电电气有限公司 | Remote gas density relay and monitoring system |
| CN110568350A (en) * | 2019-09-04 | 2019-12-13 | 上海卓电电气有限公司 | Maintenance-free intelligent gas density monitoring device, method and system |
| CN110568352A (en) * | 2019-09-04 | 2019-12-13 | 上海卓电电气有限公司 | Intelligent detection device, method and monitoring system for density relay without maintenance |
| CN110849768A (en) * | 2019-09-04 | 2020-02-28 | 上海卓电电气有限公司 | Gas density relay with online check, check method and monitoring system |
| CN112161787A (en) * | 2020-09-23 | 2021-01-01 | 广东电网有限责任公司 | SF (sulfur hexafluoride)6Gas density relay auxiliary checking device |
| CN112763790A (en) * | 2020-12-28 | 2021-05-07 | 中国南方电网有限责任公司超高压输电公司广州局 | Electrified check gauge of SF6 density relay |
| CN112798398A (en) * | 2020-12-30 | 2021-05-14 | 广西电网有限责任公司电力科学研究院 | Be used for GIS density relay gas pressure testing arrangement |
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| CN110411891A (en) * | 2019-09-04 | 2019-11-05 | 上海乐研电气有限公司 | Realize the non-maintaining on-site detecting device of gas density relay, system and method |
| CN110426313A (en) * | 2019-09-04 | 2019-11-08 | 上海乐研电气有限公司 | A kind of gas density relay and monitoring system with line diagnosis function |
| CN110542453A (en) * | 2019-09-04 | 2019-12-06 | 上海卓电电气有限公司 | Remote gas density relay and monitoring system |
| CN110568350A (en) * | 2019-09-04 | 2019-12-13 | 上海卓电电气有限公司 | Maintenance-free intelligent gas density monitoring device, method and system |
| CN110568352A (en) * | 2019-09-04 | 2019-12-13 | 上海卓电电气有限公司 | Intelligent detection device, method and monitoring system for density relay without maintenance |
| CN110849768A (en) * | 2019-09-04 | 2020-02-28 | 上海卓电电气有限公司 | Gas density relay with online check, check method and monitoring system |
| CN112161787A (en) * | 2020-09-23 | 2021-01-01 | 广东电网有限责任公司 | SF (sulfur hexafluoride)6Gas density relay auxiliary checking device |
| CN112763790A (en) * | 2020-12-28 | 2021-05-07 | 中国南方电网有限责任公司超高压输电公司广州局 | Electrified check gauge of SF6 density relay |
| CN112763790B (en) * | 2020-12-28 | 2022-06-14 | 中国南方电网有限责任公司超高压输电公司广州局 | Electrified check gauge of SF6 density relay |
| CN112798398A (en) * | 2020-12-30 | 2021-05-14 | 广西电网有限责任公司电力科学研究院 | Be used for GIS density relay gas pressure testing arrangement |
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