CN105044542A - State automatic detection method of temporary grounding line of electrical equipment - Google Patents
State automatic detection method of temporary grounding line of electrical equipment Download PDFInfo
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- CN105044542A CN105044542A CN201510471234.9A CN201510471234A CN105044542A CN 105044542 A CN105044542 A CN 105044542A CN 201510471234 A CN201510471234 A CN 201510471234A CN 105044542 A CN105044542 A CN 105044542A
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Abstract
The invention relates to a state automatic detection method of a temporary grounding line of electrical equipment. The state automatic detection method of the temporary grounding line adopts multi-agent technology and is characterized in that a maintenance personnel agent and an operation personnel agent send a grounding line automatic detection command to a grounding line agent; and the grounding line agent automatically detects grounding state of the temporary grounding line and sends in real time the grounding state information to the maintenance personnel agent, the operation personnel agent, a five-prevention machine agent and an automation background agent for displaying, and carries out monitoring on the state of the temporary grounding line, thereby preventing protection failure due to failure of the temporary grounding line in the working period. The five-prevention machine agent is used for five-prevention detection of the electrical equipment; and the automation background agent is used for real-time remote monitoring of the state of the grounding line. Requirements for full coverage, real-time automatic detection and multi-platform display and check of the temporary grounding line state sensing are realized, and operation management work of the temporary grounding line is effectively improved.
Description
Technical field
The present invention relates to power equipment, particularly electric power apparatus examination technical field of operation, specifically a kind of temporary grounding line states self checking method of power equipment.
Background technology
Temporary ground wire is the safe short-circuiting means of one that power industry will mount before equipment or the maintenance of circuit power-off laggard row, is used for preventing incoming call suddenly to stop the safety protective tools damaged operating personnel or equipment.Mainly contain following effect:
1. when high-tension line or overhaul of the equipments, for preventing unexpected power transmission, should by the three-phase pole line of mains side or bus ground wire temporary grounding.
2. prevent from adjacent high-tension line or equipment from producing induced voltage to dead line or equipment to work the mischief to human body, or interruption maintenance equipment or circuit may produce induced voltage and work the mischief to human body, should by the relevant portion ground wire temporary grounding of interruption maintenance circuit or equipment.
3., on the equipment after power failure during operation, the residual charge temporary ground wire on equipment bleeds off by application of grounding line, namely discharges.
Visible, temporary ground wire is the required a kind of security apparatus of electrical equipment interruption maintenance work, is the lifeline of protection operation maintenance personnel and maintainer's personal safety.In real work; the operation of ground wire belongs to provisional more; need to hang continually, dismounting ground wire, easily because to omit or the fault such as carelessness causes hanging, tears open, leaks extension, leakage is torn open by mistake by mistake, the temporary ground wire that should play a protective role is become on the contrary great maloperation hidden danger.In hanging earthing conductor and ground wire operational process, lack on-line monitoring earth point whether virtual earth, wire clamp the abnormal conditions such as whether to loosen, make ground wire lose protective effect.
In ground wire anti-misoperation, mostly be at present the anti-error and artificial judgement of dependence system, or have employed the mode of independent operating, system background does not have and five-preventing system combines, and does not realize the cross-platform sharing of full station information, can not meet the safety requirements of crew, real-time, multi-functional covering.
Summary of the invention
The object of this invention is to provide a kind of temporary grounding line states self checking method of power equipment, the present invention adopts multi-agent technology to design the distributed management scheme of temporary ground wire, whether reliable by pressure sensor monitoring grounding wire clamp, judge that earth point is whether reliable by the change of current/voltage during hanging earthing conductor, by injecting low frequency signal and measuring circuit electric current judges ground wire run duration whether reliable ground; By technology of Internet of things and multi-agent technology, be grounded line and operations staff, maintainer, five anti-machines, robotization backstage realize information interaction, Real-Time Monitoring state of earth wire, and participate in five anti-checks, achieve the crew of temporary ground wire state aware is covered, the requirement of in real time self-inspection and multi-platform displaying and check, effectively raise the operational management work of temporary ground wire.In order to solve at present in ground wire anti-misoperation owing to being mostly the anti-error and artificial judgement of dependence system, easily produce erroneous judgement, bring the problem of personal property damage.
For achieving the above object, the solution of the present invention is: a kind of temporary grounding line states self checking method of power equipment, described temporary grounding line states self checking method is based on multi-agent technology, mainly contain and comprise 09 ground wire agency, maintainer agency and operations staff agency, described temporary grounding line states comprises the three-phase wire clamp of temporary ground wire and whether earthing clamp clips, and earth point whether reliable ground, specifically comprise the steps:
(1) when carrying out upkeep operation to power equipment, being acted on behalf of by maintainer agency and operations staff and acting on behalf of transmission temporary ground wire self-inspection order to ground wire, after ground wire agency receives self-inspection order, starting to detect temporary grounding line states;
(2) method that whether detection three-phase wire clamp and earthing clamp clip is: arrange pressure transducer at the three-phase wire clamp of temporary ground wire and each pressure detection point of earthing clamp, each pressure transducer detects the pressure signal of three-phase wire clamp and earthing clamp in real time, and send to ground wire to act on behalf of, described ground wire acts on behalf of the pressure detecting signal sent according to each pressure transducer, judge each wire clamp whether firmly and fully contact, and after detecting that three-phase wire clamp or earthing clamp loosen, send alerting signal;
(3) method detecting temporary ground wire earth point whether reliable ground is: after temporary ground wire fixes earth point, by when hanging three-phase wire clamp mutually, if ground wire agency detects that correspondence has electric current to flow through mutually, then judge ground wire reliable ground, if correspondence does not have electric current to flow through mutually, then earth point does not have reliable ground, and ground wire agency sends alerting signal;
(4) people for self-inspection or timer-controlled self-inspection ground wire whether reliable ground time, the low-frequency ac signal of setpoint frequency is injected one by one to three-phase wire clamp, if ground wire agency monitors in loop the electric current flowing through corresponding frequencies, then judge ground wire run duration reliable ground, otherwise ground wire agency sends alerting signal.
According to the temporary grounding line states self checking method of power equipment of the present invention, in described step (2), described pressure transducer is pressure switch, after the pressure of pressure detection point reaches setup pressure value, pressure switch action, the loop that cut-in pressure sensor and ground wire are acted on behalf of, ground wire agency detects the pressure signal in loop, then judge this pressure detection point reliable grip; In all pressure-measuring-points, there is the pressure switch of more than 85% all to start, then differentiate that each wire clamp fully contacts.
According to the temporary grounding line states self checking method of power equipment of the present invention; temporary grounding line states sends to robotization backstage to act on behalf of by described ground wire agency in real time; real-time remote monitoring state of earth wire is acted on behalf of by described robotization backstage; and monitoring the abnormal alarm of state of earth wire; remind maintainer and operations staff, avoid duration of work temporary ground wire lost efficacy and lost protection to maintainer and operations staff.
According to the temporary grounding line states self checking method of power equipment of the present invention, described temporary ground wire self checking method is provided with five anti-machine agencies, for five anti-inspections of power equipment.
According to the temporary grounding line states self checking method of power equipment of the present invention, each agency includes man-machine interface, mutual for what act on behalf of with user; Communication module, for acting on behalf of exchange information with other; Data Analysis Services module, for analyzing the data message received, judges state of earth wire; Data-carrier store, for storing the existing knowledge of each agency, experience or data, these data from other reciprocal processes acted on behalf of or the problem that in the past processed.
The beneficial effect that the present invention reaches: the present invention adopts the distributed management scheme of multi-agent technology technical design temporary ground wire, whether reliable by pressure sensor monitoring grounding wire clamp, judge that earth point is whether reliable by the change of current/voltage during hanging earthing conductor, by injecting low frequency signal and measuring circuit electric current judges ground wire run duration whether reliable ground; By technology of Internet of things and multi-agent technology, be grounded line and operations staff, maintainer, five anti-machines, robotization backstage realize information interaction, Real-Time Monitoring state of earth wire, and participate in five anti-checks, achieve the crew of temporary ground wire state aware is covered, the requirement of in real time self-inspection and multi-platform displaying and check, effectively raise the operational management work of temporary ground wire.
Accompanying drawing explanation
Fig. 1 is the self checking structure schematic diagram of temporary ground wire of the present invention;
Fig. 2 is the wiring diagram whether the present invention detects wire clamp and clip;
Fig. 3 is the wiring diagram that the present invention detects earth point whether reliable ground;
Fig. 4 is ground wire self-inspection process flow diagram of the present invention.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further detailed explanation.
The temporary ground wire self checking method of the present invention's design for realizing covering the crew of temporary ground wire state aware, the requirement of self-inspection in real time and multi-platform displaying and check, the effectively operational management work of raising temporary ground wire.Need to possess following functions:
(1) ground state (ground wire Agent) of temporary ground wire is automatically detected, comprise three-phase wire clamp whether to clip, whether earth point loosens, possess timer-controlled self-inspection, go into operation license self-inspection isotype, and in time ground state is sent to the target such as maintainer (maintainer Agent), operations staff (operations staff Agent), five anti-machines (five anti-machine Agent), robotization backstage (robotization backstage Agent).
(2) on corresponding equipment, the state of temporary ground wire is shown at five anti-screens or micro_computer five_proof interface.When five anti-machines carry out simulated operation, need judge whether this interval exists temporary ground wire, and carry out five anti-checks, avoid the generation of the pernicious misoperation fault such as live ground wiring or switching on earth wire.
(3) service work responsible official carrys out Real-Time Monitoring state of earth wire by wearing intelligent terminal IED (maintainer Agent), prevents duration of work temporary ground wire lost efficacy thus lost protection.
(4) by BEI-DOU position system quick position temporary ground wire, be convenient to remove.
Temporary ground wire is the safe short-circuiting means of one that power industry will mount before equipment or the maintenance of circuit power-off laggard row, is used for preventing incoming call suddenly to stop the safety protective tools damaged operating personnel or equipment.One end of temporary ground wire is by earthing clamp ground connection, and the other end arranges three-phase wire clamp, connects the triple-phase line of power equipment respectively.As shown in Figure 1, the temporary ground wire self-checking system of the present invention's design comprises ground wire agency, maintainer agency, operations staff agency, five anti-machine agency and robotization backstage agencies, described ground wire agency is used for the ground state automatically detecting temporary ground wire, and send to that maintainer acts on behalf of in real time, operations staff agency, five anti-machines agencies and robotization backstage agency show; Described maintainer agency and operations staff agency act on behalf of to ground wire for sending ground wire self-inspection order, and Real-Time Monitoring state of earth wire, avoid duration of work temporary ground wire lost efficacy and lost protection; Described five anti-machine agencies are used for five anti-inspections of power equipment, and described robotization backstage agency is for the real-time remote monitoring of the state of connecting wires.
Each agency includes man-machine interface, mutual for what act on behalf of with user; Communication module, for acting on behalf of exchange information with other; Data Analysis Services module, for analyzing the data message received, judges state of earth wire; Data-carrier store, for storing the existing knowledge of each agency, experience or data, these data from other reciprocal processes acted on behalf of or the problem that in the past processed.
As shown in Figure 2, each pressure detection point of three-phase wire clamp and earthing clamp arranges pressure transducer, the signal output part of each pressure transducer connects ground wire agency, pressure transducer detects the pressure signal of three-phase wire clamp and earthing clamp in real time, and sending to ground wire to act on behalf of, whether the pressure signal that described ground wire agency sends according to pressure transducer, judge each wire clamp firmly and fully contact, and after detecting that three-phase wire clamp or earthing clamp loosen, send alerting signal.
Pressure transducer described in the present embodiment adopts pressure switch, whether judges each wire clamp firmly and fully contact, demand fulfillment two conditions, that is:
(1) after the pressure of pressure detection point reaches setup pressure value, pressure switch action, the loop that cut-in pressure sensor and ground wire are acted on behalf of, ground wire agency detects the pressure signal in loop, then judge this pressure detection point reliable grip;
(2) in all pressure-measuring-points, there is the pressure switch of more than 85% all to start, then differentiate that each wire clamp fully contacts.
As shown in Figure 3, after ground wire fixes earth point, by when hanging three-phase wire clamp mutually, if ground wire agency detects that correspondence has electric current to flow through mutually, then judge ground wire reliable ground, if respectively do not have electric current to flow through mutually, then earth point does not have reliable ground, and ground wire agency sends alerting signal.
When people is for self-inspection or timer-controlled self-inspection ground wire reliable ground, AC power is set, ground wire agency connects one end of AC power, the other end of described AC power connects one end of three-phase wire clamp hanging wire, the other end of described three-phase wire clamp connects ground wire agency, injected the low-frequency ac signal of setpoint frequency one by one to three-phase wire clamp by AC power, if ground wire agency monitors in loop the electric current flowing through corresponding frequencies, then judge ground wire run duration reliable ground, otherwise, judge ground wire run duration, there is no reliable ground, ground wire agency sends alerting signal, staff is reminded to note.
Ground wire system of the present invention is also provided with BEI-DOU position system, by BEI-DOU position system quick position temporary ground wire, is convenient to remove.
As shown in Figure 4, the concrete testing process of the present invention to temporary grounding line states is:
(1) when carrying out upkeep operation to power equipment, being acted on behalf of by maintainer agency and operations staff and acting on behalf of transmission temporary ground wire self-inspection order to ground wire, after ground wire agency receives self-inspection order, starting to detect temporary grounding line states.
(2) method that whether detection three-phase wire clamp and earthing clamp clip is: arrange pressure transducer at the three-phase wire clamp of temporary ground wire and each pressure detection point of earthing clamp, each pressure transducer detects the pressure signal of three-phase wire clamp and earthing clamp in real time, and send to ground wire to act on behalf of, described ground wire acts on behalf of the pressure detecting signal sent according to each pressure transducer, judge each wire clamp whether firmly and fully contact, and after detecting that three-phase wire clamp or earthing clamp loosen, send alerting signal;
Judge each wire clamp whether firmly and fully contact, demand fulfillment two conditions, that is:
A. after the pressure of pressure detection point reaches setup pressure value, pressure switch action, the loop that cut-in pressure sensor and ground wire are acted on behalf of, ground wire agency detects the pressure signal in loop, then judge this pressure detection point reliable grip; B. in all pressure-measuring-points, there is the pressure switch of more than 85% all to start, then differentiate that each wire clamp fully contacts.
(3) method detecting temporary ground wire earth point whether reliable ground is: after temporary ground wire fixes earth point, by when hanging three-phase wire clamp mutually, if ground wire agency detects that correspondence has electric current to flow through mutually, then judge ground wire reliable ground, if correspondence does not have electric current to flow through mutually, then earth point does not have reliable ground, and ground wire agency sends alerting signal.
(4) people for self-inspection or timer-controlled self-inspection ground wire whether reliable ground time, the low-frequency ac signal of setpoint frequency is injected one by one to three-phase wire clamp, if ground wire agency monitors in loop the electric current flowing through corresponding frequencies, then judge ground wire run duration reliable ground, otherwise, ground wire does not have reliable ground at run duration, and ground wire agency sends alerting signal.
(5) temporary grounding line states sends to robotization backstage to act on behalf of by ground wire agency described in real time; real-time remote monitoring state of earth wire is acted on behalf of by described robotization backstage; and monitoring the abnormal alarm of state of earth wire; remind maintainer and operations staff, avoid duration of work temporary ground wire lost efficacy and lost protection to maintainer and operations staff.
The present invention adopts multi-agent technology to design the distributed management scheme of temporary ground wire, by pressure sensor monitoring grounding wire clamp whether reliably and fully contact, judge that whether earth point is reliable by the change of current/voltage during hanging earthing conductor, by injecting the low-frequency ac signal of setpoint frequency, and measuring circuit electric current judges ground wire run duration whether reliable ground; By technology of Internet of things and multi-agent technology, be grounded line and operations staff, maintainer, five anti-machines, robotization backstage realize information interaction, Real-Time Monitoring state of earth wire, and participate in five anti-checks, achieve the crew of temporary ground wire state aware is covered, the requirement of in real time self-inspection and multi-platform displaying and check, effectively raise the operational management work of temporary ground wire.
Claims (5)
1. the temporary grounding line states self checking method of a power equipment, it is characterized in that: described temporary grounding line states self checking method is based on multi-agent technology, mainly contain and comprise ground wire agency, maintainer agency and operations staff agency, described temporary grounding line states comprises the three-phase wire clamp of temporary ground wire and whether earthing clamp clips, and earth point whether reliable ground, specifically comprise the steps:
(1) when carrying out upkeep operation to power equipment, being acted on behalf of by maintainer agency and operations staff and acting on behalf of transmission temporary ground wire self-inspection order to ground wire, after ground wire agency receives self-inspection order, starting to detect temporary grounding line states;
(2) method that whether detection three-phase wire clamp and earthing clamp clip is: arrange pressure transducer at the three-phase wire clamp of temporary ground wire and each pressure detection point of earthing clamp, each pressure transducer detects the pressure signal of three-phase wire clamp and earthing clamp in real time, and send to ground wire to act on behalf of, described ground wire acts on behalf of the pressure detecting signal sent according to each pressure transducer, judge each wire clamp whether firmly and fully contact, and after detecting that three-phase wire clamp or earthing clamp loosen, send alerting signal;
(3) method detecting temporary ground wire earth point whether reliable ground is: after temporary ground wire fixes earth point, by when hanging three-phase wire clamp mutually, if ground wire agency detects that correspondence has electric current to flow through mutually, then judge ground wire reliable ground, if correspondence does not have electric current to flow through mutually, then earth point does not have reliable ground, and ground wire agency sends alerting signal;
(4) people for self-inspection or timer-controlled self-inspection ground wire whether reliable ground time, the low-frequency ac signal of setpoint frequency is injected one by one to three-phase wire clamp, if ground wire agency monitors in loop the electric current flowing through corresponding frequencies, then judge ground wire run duration reliable ground, otherwise ground wire agency sends alerting signal.
2. the temporary grounding line states self checking method of power equipment according to claim 1, it is characterized in that, in described step (2), described pressure transducer is pressure switch, after the pressure of pressure detection point reaches setup pressure value, pressure switch action, the loop that cut-in pressure sensor and ground wire are acted on behalf of, ground wire agency detects the pressure signal in loop, then judge this pressure detection point reliable grip; In all pressure-measuring-points, there is the pressure switch of more than 85% all to start, then differentiate that each wire clamp fully contacts.
3. the temporary grounding line states self checking method of power equipment according to claim 1; it is characterized in that; temporary grounding line states sends to robotization backstage to act on behalf of by described ground wire agency in real time; real-time remote monitoring state of earth wire is acted on behalf of by described robotization backstage; and monitoring the abnormal alarm of state of earth wire; remind maintainer and operations staff, avoid duration of work temporary ground wire lost efficacy and lost protection to maintainer and operations staff.
4. the temporary grounding line states self checking method of power equipment according to claim 1, is characterized in that, described temporary ground wire self checking method is provided with five anti-machine agencies, for five anti-inspections of power equipment.
5. the temporary grounding line states self checking method of power equipment according to claim 1, is characterized in that, each agency includes man-machine interface, mutual for what act on behalf of with user; Communication module, for acting on behalf of exchange information with other; Data Analysis Services module, for analyzing the data message received, judges state of earth wire; Data-carrier store, for storing the existing knowledge of each agency, experience or data, these data from other reciprocal processes acted on behalf of or the problem that in the past processed.
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| CN201510471234.9A CN105044542B (en) | 2015-08-04 | 2015-08-04 | A kind of temporary ground wire state self checking method of power equipment |
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| CN105572517A (en) * | 2016-02-26 | 2016-05-11 | 贵州电网有限责任公司铜仁供电局 | Online monitoring type intelligent electrified switching-in protection device of lightning arrester and control method |
| CN108051615A (en) * | 2017-12-29 | 2018-05-18 | 国家电网公司 | A kind of detection type tester ground wire |
| WO2021047496A1 (en) * | 2019-09-10 | 2021-03-18 | 中国移动通信有限公司研究院 | Method of triggering sensor of internet of things device, and internet of things device |
| CN113567726A (en) * | 2021-07-21 | 2021-10-29 | 广东电网有限责任公司 | Ground wire installation safety monitoring device and ground wire |
| CN116577699A (en) * | 2023-07-13 | 2023-08-11 | 三峡集团浙江能源投资有限公司 | Loss-of-ground monitoring device for small-resistance grounding system of pumped storage power station |
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| CN105044542B (en) | 2017-10-27 |
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