CN206400043U - Temporarily line on-line monitoring system - Google Patents
Temporarily line on-line monitoring system Download PDFInfo
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- CN206400043U CN206400043U CN201720058636.0U CN201720058636U CN206400043U CN 206400043 U CN206400043 U CN 206400043U CN 201720058636 U CN201720058636 U CN 201720058636U CN 206400043 U CN206400043 U CN 206400043U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 18
- 238000001514 detection method Methods 0.000 claims abstract description 62
- 238000004804 winding Methods 0.000 claims abstract description 14
- 238000004891 communication Methods 0.000 claims abstract description 13
- 238000012546 transfer Methods 0.000 claims description 9
- 239000000523 sample Substances 0.000 claims description 4
- 238000004088 simulation Methods 0.000 claims description 2
- 238000007689 inspection Methods 0.000 claims 1
- 238000012423 maintenance Methods 0.000 abstract description 7
- 239000004020 conductor Substances 0.000 abstract description 3
- 238000010276 construction Methods 0.000 abstract description 3
- 238000006243 chemical reaction Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- 238000012795 verification Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 210000001367 artery Anatomy 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 210000003462 vein Anatomy 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a kind of temporarily line on-line monitoring system, including the detection line combined by three-phase wire clamp and ground wire body, transformer base, pulse generating module, pulse detection module, supervision detection module, the first winding of transformer base is made up of ground wire body, secondary winding and pulse generating module are connected, detection line is connected with pulse detection module, and supervision detection module is in communication with each other with pulse detection module.The utility model is simple in construction, easy to maintenance, the access state of temporarily line can be monitored in real time, avoid the temporarily line maloperation caused by the fault such as omission or carelessness, in hanging earthing conductor and ground wire running, ensure earth point and wire clamp strong ground, it is ensured that the safety of operating personnel and repair apparatus.
Description
Technical field
The utility model is related to electric power apparatus examination field of operation, more particularly to a kind of temporarily line on-line monitoring system
System.
Background technology
When transformer is overhauled, in order to protect operating personnel's safety, it is ensured that repair apparatus is in inspecting state, as needed
Temporarily line can be accessed above earthing switch blade or circuit.The access of temporarily line ensure that maintenance position reliable ground, to prevent
The electric current that line influence electricity or maloperation are produced hurts service work personnel, is that substation equipment maintenance and repair and Operation and Maintenance department are used for
The important tool of the protection person and equipment safety.
But traditional ground wire only has copper cash composition, not any supporting detection means, additionally, due to ground wire weight
Larger, hanging device acquires a certain degree of difficulty, thus at work it is possible that not reaching the situation of position, in addition, traditionally
Line needs to hang a large amount of ground wires due to having no mark system in more large-scale Overhaul site, so finished in maintenance
When it is possible that ground wire remove omit, cause the serious accidents such as switching on earth wire.Counted according to national grid, with temporary grounding
The relevant electric misoperation of line accounts for the 60% of total number of accident.And currently for above mentioned problem, there is proposition to be determined using position switch
Whether reliable ground wire is hung closes, but this method and can not directly prove that ground wire has been firmly linked with, and still there is security risk, also
Extra source method is taken, the problems such as whether power supply reliably injects circuit can not also be resolved.In addition, some five anti-management
System comes into operation, but formality is numerous, and based on management layer, due to ground wire position can not be known in real time in practical operation
Put, easily start a leak, do not tackle the problem at its root.
Therefore a kind of new temporarily line on-line monitoring system of offer is needed badly to solve the above problems.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of temporarily line on-line monitoring system, can supervise in real time
Survey the access state of temporarily line.
In order to solve the above technical problems, the technical scheme that the utility model is used is：A kind of temporarily line is provided to exist
Line monitoring system, including the detection line and ground wire body, transformer base, pulse generating module, arteries and veins combined by three-phase wire clamp
Detection module, supervision detection module are rushed, the first winding of transformer base is made up of ground wire body, secondary winding and pulse generation
Module is connected, and detection line is connected with pulse detection module, and supervision detection module is in communication with each other with pulse detection module.
In one preferred embodiment of the utility model, pulse generating module includes MPU controls analog switch, voltage source,
Voltage source controls analog switch to be connected with the secondary winding of transformer base by MPU.Pulse generating module is from secondary terminals to ground
Line once holds input rated voltage.
Further, transformer base constitutes pulse type transformer by ground wire body and secondary winding.Using pulsed
The pulse that transformer produces pulse generating module is directly injected in circuit by ground wire body, it is to avoid ground wire is hung a little because of thunderbolt
The high voltage that induced voltage or maloperation are produced damages secondary circuit, pulse generating module is played a protective role, whole system
System uses safer.
In one preferred embodiment of the utility model, pulse detection module is used to detect temporarily line and detection circuit institute
Whether the loop of composition turns on, it include one-out-three analog switch, current transformer, voltage comparator, I-V transfer resistances,
MPU, wireless signal transmitting element, one-out-three analog switch are connected with current transformer, current transformer, voltage comparator with
MPU connects, and I-V transfer resistances are in parallel with current transformer, and one-out-three analog switch constitutes pulse detection probe with detection line.
Further, supervision detection module includes reception of wireless signals unit, memory cell, alarm unit, communication unit,
Reception of wireless signals unit is in communication with each other with wireless signal transmitting element.Reception of wireless signals unit wirelessly receives nothing
The pulse signal that line signal transmitting unit is sent, realizes whether monitoring temporarily line reliably accesses, memory cell storage ground wire
Relevant information, because the pulse signal received uses Unified coding, carry ground wire number information, supervision detection module can be known
Not with rewriting ground wire number, and the plug-in strip with releasing five-defence block can be write into ground wire.
Further, in addition to master control room, master control room is connected by netting twine with communication unit.Can by supervising detection module
Know the information of all ground wires of access in station at present, if there is exception, trigger alarm unit, and report to master control room.
The beneficial effects of the utility model are：
(1) the utility model is simple in construction, easy to maintenance, and the access state of temporarily line can be monitored in real time, it is to avoid because
The temporarily line maloperation that the fault such as omission or carelessness is caused, in hanging earthing conductor and ground wire running, it is ensured that earth point
And wire clamp strong ground；
(2) using transformer base directly by the way that ground wire is to circuit input pulse and detects, this mode can be tested directly
Bright ground wire has been hung to circuit, while also solving detection signal injects insecure problem；
(3) replace characteristic signal electric current to avoid real-time digital-to-analogue conversion using pulse train, improve MPU utilization rates, together
When pulse train can be expressed as ground wire number as verification data, prevent circuit caused when having multigroup ground wire erroneous judgement；
(4) ground wire is managed concentratedly using supervision detection module, it is only necessary to backward correspondence ground wire input before operation
Locking information, five relatively conventional anti-management are simpler, convenient, and can determine the ground wire ornaments situation at scene rapidly.
Brief description of the drawings
Fig. 1 is the theory diagram of the preferred embodiment of the utility model temporarily line on-line monitoring system one；
The mark of each part is as follows in accompanying drawing：1st, three-phase wire clamp, 2, ground wire body, 3, detection line, 4, MPU control simulations open
Close, 5, voltage source, 6, one-out-three analog switch, 7, current transformer, 8, voltage comparator, 9, I-V transfer resistances,.
Embodiment
Preferred embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings, so that advantage of the present utility model
It can be easier to be readily appreciated by one skilled in the art with feature, so as to make protection domain of the present utility model apparent clear and definite
Define.
Referring to Fig. 1, the utility model embodiment includes：
A kind of temporarily line on-line monitoring system, including the detection line 3 and ground wire body 2, transformation being made up of three-phase wire clamp 1
Device base, pulse generating module, pulse detection module, supervision detection module, master control room.The first winding of transformer base is by ground
Line body 2 is constituted, secondary winding and pulse generating module are connected, and detection line 3 is connected with pulse detection module, before detection line 3
The three-phase suspension joint for temporarily line is held, three-phase pulse detection tabs are formed, master control room is by supervising detection module and pulse
Detection module is in communication with each other.
Pulse generating module includes MPU controls analog switch 4, voltage source 5, and voltage source 5 controls analog switch 4 by MPU
It is connected with the secondary winding of transformer base.Pulse generating module once holds input rated voltage from secondary terminals to ground wire.
Transformer base is pulse type transformer, and first winding is constituted by ground wire body, is connected by magnetic core and secondary circuit
Connect.The pulse for being produced pulse generating module using pulse type transformer is directly injected in circuit by ground wire body, it is to avoid ground
Line is hung a little because the high voltage that lightning induced surge or maloperation are produced damages secondary circuit, pulse generating module is played guarantor
Shield is acted on, and whole system uses safer.It is this using transformer base directly by the way that ground wire is to circuit input pulse and detects
Mode can directly identify ground wire and hang to circuit, while also solving detection signal injects insecure problem.
Pulse detection module is used to detect whether the loop that temporarily line is constituted with detection circuit turns on, and it includes three choosings
One analog switch 6, current transformer 7, voltage comparator 8, I-V transfer resistances 9, MPU, wireless signal transmitting element.One-out-three
Analog switch 6 is connected with current transformer 7, and current transformer 7, voltage comparator 8 are connected with MPU, voltage comparator 8 it is anti-phase
Input is connected with one end of current transformer 7, normal phase input end is hanging, output end and MPU connections, I-V transfer resistances 9 with it is electric
Current transformer 7 is in parallel.One-out-three analog switch 6 constitutes pulse detection probe, one-out-three analog switch 6 and detection with detection line 3
The three-phase suspension joint insulation of the front end of line 3.When temporarily line is accessed, once returned with pulse detection module composition by circuit
Road, when one-out-three analog switch 6 selects any one of three-phase pulse detection tabs respectively, the measurement of current transformer 7 is obtained
Secondary couple current, magnitude of voltage is converted to by I-V transfer resistances 9, then is contrasted by voltage comparator 8 and fiduciary level, greatly
High level is exported in fiduciary level, represents that temporarily line is reliably mounted；Low level is exported less than fiduciary level, temporarily line is represented
Unreliable mounting, finally accesses MPU identifications, logical by wireless signal transmitting element if the ground wire identified is not reliably connected
Know supervision detection module.
Pulse is sent according to certain format by pulse generating module, should by pulse detecting equipment identification by ground wire body 2
Group pulse.Realize that signal is transmitted instead of characteristic signal electric current using pulse train, real-time digital-to-analogue conversion can be avoided, MPU is improved
Utilization rate, while pulse train can be expressed as ground wire number as verification data, prevents circuit from causing mistake when having multigroup ground wire
Sentence.
Supervising detection module includes reception of wireless signals unit, memory cell, alarm unit, communication unit, wireless signal
Receiving unit is in communication with each other with wireless signal transmitting element, and communication unit is connected by netting twine with master control room.Reception of wireless signals
Unit wirelessly receives the pulse signal of wireless signal transmitting element transmission, realizes whether monitoring temporarily line can be abutted against
Enter.Memory cell stores up the relevant information of ground wire, because the pulse signal received uses Unified coding, carries ground wire number
Information, supervision detection module is recognizable and rewrites ground wire number, and can write the plug-in strip with releasing five-defence block into ground wire,
The information of all ground wires of access in station at present is would know that by supervising detection module simultaneously, if there is exception, alarm unit is triggered,
And report to master control room.Ground wire is managed concentratedly using supervision detection module, it is only necessary to backward before operation to correspond to ground wire
Locking information is inputted, five relatively conventional anti-management are simpler, convenient, and can determine the ground wire ornaments situation at scene rapidly.
The operation principle of the temporarily line on-line monitoring system is：Pulse generating module is by magnetic induction by action of low-voltage pulse
Surveyed coupled to ground wire, if ground wire is reliably hung, then earth point then can constitute loop by ground wire body 2 and detection line 3.This
When, the current transformer 7 in ground signal coupled pulse detection probe, current transformer 7 detects and exported impulse phase phase
Same current impulse, after I-V transfer resistances 9 and voltage comparator 8, then inputs to MPU readings, discriminates whether it is local
Line, if detection ground contact is loosely, or without hanging successfully, then wirelessly notifies supervision detection module.In addition
The information such as five-defence block can also be inputted to correspondence ground wire by supervising detection module, to prevent the risky operation such as band ground wire and switch.
The utility model is simple in construction, easy to maintenance, and the access state of temporarily line can be monitored in real time, it is to avoid because omitting
Or the temporarily line maloperation that causes of fault such as carelessness, in hanging earthing conductor and ground wire running, it is ensured that earth point and line
Press from both sides strong ground, it is ensured that the safety of operating personnel and repair apparatus.
Embodiment of the present utility model is the foregoing is only, the scope of the claims of the present utility model is not thereby limited, it is every
The equivalent structure or equivalent flow conversion made using the utility model specification and accompanying drawing content, or be directly or indirectly used in
Other related technical fields, are similarly included in scope of patent protection of the present utility model.
Claims (6)
1. a kind of temporarily line on-line monitoring system, including the detection line and ground wire body combined by three-phase wire clamp, its feature
It is, in addition to transformer base, pulse generating module, pulse detection module, supervision detection module, transformer base is once
Winding is made up of ground wire body, secondary winding and pulse generating module are connected, and detection line is connected with pulse detection module, supervision inspection
Module is surveyed to be in communication with each other with pulse detection module.
2. temporarily line on-line monitoring system according to claim 1, it is characterised in that pulse generating module includes MPU
Analog switch, voltage source are controlled, voltage source controls analog switch to be connected with the secondary winding of transformer base by MPU.
3. temporarily line on-line monitoring system according to claim 1 or 2, it is characterised in that transformer base passes through ground
Line body constitutes pulse type transformer with secondary winding.
4. temporarily line on-line monitoring system according to claim 1, it is characterised in that pulse detection module includes three choosings
One analog switch, current transformer, voltage comparator, I-V transfer resistances, MPU, wireless signal transmitting element, one-out-three simulation
Switch is connected with current transformer, and current transformer, voltage comparator are connected with MPU, and I-V transfer resistances and current transformer are simultaneously
Connection, one-out-three analog switch constitutes pulse detection probe with detection line.
5. temporarily line on-line monitoring system according to claim 4, it is characterised in that supervision detection module includes wireless
Signal receiving unit, memory cell, alarm unit, communication unit, reception of wireless signals unit and wireless signal transmitting element phase
Mutual communication.
6. temporarily line on-line monitoring system according to claim 5, it is characterised in that also including master control room, master control room
It is connected by netting twine with communication unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720058636.0U CN206400043U (en) | 2017-01-17 | 2017-01-17 | Temporarily line on-line monitoring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720058636.0U CN206400043U (en) | 2017-01-17 | 2017-01-17 | Temporarily line on-line monitoring system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206400043U true CN206400043U (en) | 2017-08-11 |
Family
ID=59518616
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720058636.0U Active CN206400043U (en) | 2017-01-17 | 2017-01-17 | Temporarily line on-line monitoring system |
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| Country | Link |
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| CN (1) | CN206400043U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510004A (en) * | 2019-01-11 | 2019-03-22 | 国网冀北电力有限公司唐山供电公司 | A kind of 110kV or more temporarily line engaging means and method |
-
2017
- 2017-01-17 CN CN201720058636.0U patent/CN206400043U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109510004A (en) * | 2019-01-11 | 2019-03-22 | 国网冀北电力有限公司唐山供电公司 | A kind of 110kV or more temporarily line engaging means and method |
| CN109510004B (en) * | 2019-01-11 | 2023-09-01 | 国网冀北电力有限公司唐山供电公司 | Device and method for connecting temporary ground wire with voltage of 110kV or above |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No. 397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province 230061 Patentee after: STATE GRID ANHUI POWER SUPPLY COMPANY OVERHAUL BRANCH Patentee after: STATE GRID CORPORATION OF CHINA Address before: No.415 Wuhu Road, Baohe District, Hefei City, Anhui Province 230061 Patentee before: Maintenance Company Of State Grid Anhui Electric Power Company Patentee before: State Grid Corporation of China |
|
| CP03 | Change of name, title or address | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No. 397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province 230061 Patentee after: Super high voltage branch of State Grid Anhui Electric Power Co.,Ltd. Patentee after: STATE GRID CORPORATION OF CHINA Address before: No. 397, Tongcheng South Road, Baohe District, Hefei City, Anhui Province 230061 Patentee before: STATE GRID ANHUI POWER SUPPLY COMPANY OVERHAUL BRANCH Patentee before: STATE GRID CORPORATION OF CHINA |
|
| CP01 | Change in the name or title of a patent holder |