CN115420413A - Position monitoring device of transformer substation grounding wire - Google Patents
Position monitoring device of transformer substation grounding wire Download PDFInfo
- Publication number
- CN115420413A CN115420413A CN202211027176.7A CN202211027176A CN115420413A CN 115420413 A CN115420413 A CN 115420413A CN 202211027176 A CN202211027176 A CN 202211027176A CN 115420413 A CN115420413 A CN 115420413A
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- grounding
- pressure sensor
- grounding wire
- fixing plate
- monitoring device
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 13
- 238000004891 communication Methods 0.000 claims abstract description 14
- 239000004020 conductor Substances 0.000 claims abstract description 6
- 230000000149 penetrating effect Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims 1
- 238000000034 method Methods 0.000 description 3
- 238000001125 extrusion Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000739 chaotic effect Effects 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L5/00—Apparatus for, or methods of, measuring force, work, mechanical power, or torque, specially adapted for specific purposes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
- H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/16—Earthing arrangements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Arrangements For Transmission Of Measured Signals (AREA)
Abstract
The invention discloses a position monitoring device of a grounding wire of a transformer substation, which comprises a grounding pile, wherein the grounding pile comprises a base and a fixing plate, the fixing plate is vertically connected with the base, the surface of the fixing plate is vertically arranged, a fixing hole is formed in the position, close to the outer end, of the fixing plate, and the grounding pile is connected with a grounding conductor and a grounding terminal through the base and the fixing hole respectively; the pressure sensor is arranged at one side of the fixing plate, the center of the pressure sensor is matched with the fixing hole to form a threaded hole, the stress surface of the pressure sensor is located on the outer side, the pressure sensor is respectively connected with the power supply and the wireless communication module, and the power supply and the wireless communication module are arranged on the grounding pile. This device compact structure, the loading and unloading of being convenient for, it is reliable to use, can effectively gather pressure signal, detects the operation operating personnel through this signal and when installing ground connection, confirms that three-phase power line has reliably grounded, accomplishes normal operation, solves the earth connection and installs the confusion, the safe risk problem that forgets etc. and bring.
Description
Technical Field
The invention belongs to the technical field of electric power engineering, and particularly relates to a position monitoring device for a grounding wire of a transformer substation.
Background
When station equipment, high-voltage distribution line, low-voltage distribution network ground connection, the earth connection should adopt the short circuit earth connection of three-phase, and the earth connection has embodied maintenance staff's lifeline as the main safety tool of transformer substation completely, nevertheless has great potential safety hazard to the operation personnel.
At present the intensive management is carried out to transformer, and when the equipment state in the operation station, the dispatch only with equipment operation in cold standby state, the safety measure is overhauld in the station, installs the earth connection and hangs and demolish by the operation personnel by oneself, though there is the five keys of preventing of ground connection stake, nevertheless still comparatively chaotic in the aspect of installing the earth connection work, electric power safety work rule regulation: the grounding wire is assembled and disassembled, and records are needed to be made, but the current grounding wire management does not achieve effective management and control, so that the omission is easily caused in the grounding disassembling process.
The existing grounding wire pile head of the transformer substation is basically perfect, and the number of grounding wires in the whole substation and the specific spacing positions for installing the grounding wires are required to be effectively monitored in real time in the grounding wire management process so as to avoid the omission of the grounding wires.
Disclosure of Invention
Based on the problems, the invention provides a grounding pile sensing device, which solves the problem of safety risk caused by disordered installation and forgetting of a grounding wire.
The technical scheme adopted by the invention is that the position monitoring device of the grounding wire of the transformer substation comprises a grounding pile, wherein the grounding pile comprises a base and a fixed plate, the fixed plate is vertically connected with the base, the surface of the fixed plate is vertically arranged, a fixed hole is formed in the position, close to the outer end, of the fixed plate, and the grounding pile is respectively connected with a grounding conductor and a grounding terminal through the base and the fixed hole; and a pressure sensor is arranged at the position of the fixed hole, the pressure sensor is respectively connected with a power supply and a wireless communication module, and the power supply and the wireless communication module are arranged on the grounding pile.
Preferably, the pressure sensor is arranged on one side of the fixing plate, a threaded hole is formed in the center of the pressure sensor and matched with the fixing hole, and the stress surface of the pressure sensor is located on the outer side.
Preferably, the ground terminal is a cylinder, the front end of the ground terminal is provided with a ground wire connecting part, the tail end of the ground terminal is provided with a connecting screw rod, the connecting screw rod is matched with the fixing hole in a matching manner and is provided with a fastening nut, the head end of the connecting screw rod is provided with a circular plate, the area of the circular plate is larger than that of the fixing hole, and the tail end of the connecting screw rod is provided with a small hole.
Preferably, the ground wire connecting portion penetrates through the ground terminal and is radially provided with a threaded hole, the threaded hole is provided with a bolt in a matching mode, and a connecting plane is arranged on one side, located at the opening of the threaded hole, of the ground wire connecting portion.
Preferably, the outer side of the fastening nut is relatively provided with a dovetail, the front end of the fastening nut is provided with a gasket, and the area of the gasket is larger than that of the fixing hole.
Preferably, the ground wire connecting part is connected with the head end of the ground wire through a bolt, the tail end of the ground wire is provided with a short circuit confluence clamp, and the short circuit confluence clamp is respectively connected with the A, B and C three-phase wires.
Preferably, the pressure sensor is connected with a charge amplifier, and the charge amplifier transmits signals to the computer system through the wireless communication module.
Preferably, ground connection stake overcoat is equipped with the casing, and the mounting hole is seted up respectively to the corresponding fixed orifices in casing both sides, and the mounting hole aperture is greater than the ground terminal external diameter, and the mounting hole matches and is equipped with the rubber buffer.
The beneficial effects of the invention are:
1) The device is mainly applied to all grounding pile electrical equipment of the transformer substation, safe operation can be carried out in each transformer substation without power outage, equipment operation is not influenced, and management is convenient;
2) According to the invention, the circular plate is arranged at the front end of the connecting bolt, so that the circular plate is effectively connected with the stress surface of the pressure sensor during connection, and pressure is fully applied to the pressure sensor when the fastening nut is screwed down, so that signal acquisition is ensured; in addition, the gasket is arranged at the front end of the fastening nut, so that no matter which end of the grounding terminal is connected with the pressure sensor, pressure can be generated on the grounding terminal, effective acquisition of signals is guaranteed, and the use is convenient;
3) Through setting up connecting screw and fastening nut, not only ensure that ground terminal forms the centre gripping extrusion to pressure sensor from both sides, and ensure with ground connection stake zonulae occludens, guarantee that earth connection electric power passes to the ground through the ground connection stake, the protection during operation is personal.
Drawings
FIG. 1 is a schematic view of the structure of the present invention;
FIG. 2 is a schematic view of a ground terminal;
the drawing is marked with: 1. the grounding pile comprises a grounding pile body 11, a base 12, a fixing plate 2, a grounding conductor 3, a grounding terminal 31, a grounding wire connecting part 311, a connecting plane 32, a connecting screw rod 321, a circular plate 322, a small hole 33, a fastening nut 331, a dovetail 332, a gasket 4, a pressure sensor 5, a power supply 6, a wireless communication module 7 and a charge amplifier.
Detailed Description
The invention will be further explained below in conjunction with the drawings attached to the specification so as to facilitate better understanding by those skilled in the art.
Example 1
As shown in fig. 1, a position monitoring device for a substation grounding wire comprises a grounding pile 1, a grounding conductor 2, a grounding terminal 3, a pressure sensor 4, a power supply 5, a charge amplifier 7 and a wireless communication module 6.
The grounding pile 1 comprises a base 11 and a fixing plate 12, the fixing plate 12 is vertically connected with the base 11, the surface of the fixing plate 12 is vertically arranged, and a fixing hole is formed in the position, close to the outer end, of the fixing plate 12; ground connection stake 1 passes through 11 backs of base and the welding of ground conductor 2, and ground connection stake 1 can dismantle fixed connection with ground terminal 3 through the fixed orifices, and ground terminal 3 connects the earth connection.
Pressure sensor 4 locates fixed orifices department, specifically, pressure sensor 4 installs and matches the fixed orifices in fixed plate 12 one side and central authorities and sets up the screw hole, and pressure sensor 4 stress surface is located the outside, and pressure sensor 4 connects power 5 and charge amplifier 7 respectively, amplifies and converts electrical signal through charge amplifier 7, charge amplifier 7 passes through wireless communication module 6 with signal transmission to computer system, and wherein, power 5, charge amplifier 7 and wireless communication module 6 are located on the ground connection stake 1. The wireless communication module 6 adopts ZigBee transmission, and transmits point positions to a computer system of a main control room after acquiring the positions of the on-site grounding piles through the ZigBee module, and finally, the point positions are connected with a measurement and control device, so that the grounding condition of each grounding pile 1 can be conveniently and directly monitored.
The grounding terminal 3 is a cylinder, a grounding wire connecting part 31 is arranged at the front end of the grounding terminal 3, a threaded hole is formed in the radial direction of the grounding wire connecting part 31 penetrating through the grounding terminal 3, a bolt is arranged in the threaded hole in a matching mode, a connecting plane 311 is arranged on one side, located at the opening of the threaded hole, of the grounding wire connecting part 31, the grounding wire connecting part 31 is connected with the head end of a grounding wire through a bolt, the connecting plane 311 not only guarantees the connection tightness of the bolt, but also increases the connecting area of the grounding wire and the grounding terminal 3, and guarantees reliable grounding connection; and the tail end of the grounding wire is provided with a short circuit confluence clamp which is respectively connected with the A, B and C three-phase wires.
The tail end of the grounding terminal 3 is provided with a connecting screw rod 32, the connecting screw rod 32 is matched with the fixing hole and provided with a fastening nut 33, the head end of the connecting screw rod 32 is provided with a circular plate 321, the area of the circular plate 321 is larger than that of the fixing hole, and the tail end of the connecting screw rod 32 is provided with a small hole 322 for hanging a five-prevention grounding lock. When the ground wire connecting portion 31 is positioned on one side of the force-receiving surface of the pressure sensor 4, the circular plate 321 contacts the force-receiving surface of the pressure sensor 4 to perform a function of limiting the pressure, and as the fastening nut 33 is tightened, the circular plate 321 and the pressure sensor 4 apply pressure to acquire a signal.
The outer side of the fastening nut 33 is oppositely provided with a dovetail 331, so that the operation is convenient, and the fastening nut 33 can be screwed by rotating hands; the gasket 332 is arranged at the front end of the fastening nut 33, the area of the gasket 332 is larger than that of the fixing hole, the contact area between the gasket 332 and the grounding pile 1 is increased, and clamping extrusion is formed on the grounding pile; when the fastening nut 33 is positioned on one side of the stress surface of the pressure sensor 4, the gasket 332 is connected with the pressure sensor 4 and applies pressure to the pressure sensor, so that signals can be acquired no matter how the pressure sensor is used, and the use reliability of the device is ensured.
1 overcoat of ground connection stake is equipped with the casing, and the mounting hole is seted up respectively to the corresponding fixed orifices in casing both sides, and the mounting hole aperture is greater than 3 external diameters of ground terminal, and the mounting hole matches and is equipped with the rubber buffer. Utilize the casing to form the protection to pressure sensor 4, power 5, charge amplifier 7 and wireless communication module 6, avoid the rainwater erosion, and set up the erection joint when the device of being convenient for of mounting hole uses, rubber buffer convenient to use, the leakproofness is good.
The using method comprises the following steps:
when the five-prevention grounding device is used, the grounding wire is connected with the grounding wire connecting part 31, then the rubber plug of the shell is opened, the connecting screw rod 33 penetrates through the fixing plate 12 through the fixing hole until the pressure sensor 4 or the fixing plate 12 is contacted with the circular plate 321, the fastening nut 33 is screwed down to enable the fastening nut to be in interference connection with the fixing plate 12 or the pressure sensor 4, the pressure sensor 4 is stressed, then the five-prevention grounding device is connected with the connecting bolt 32 through the small hole 322, the power supply 5 is started, signals of the pressure sensor 4 are wirelessly transmitted to a computer system, and a worker can know the grounding position and the grounding condition through signal data.
This device compact structure, the loading and unloading of being convenient for, it is reliable to use, can effectively gather pressure signal, detects the operation operating personnel through this signal and when installing ground connection, confirms that three-phase power line has reliably grounded, accomplishes normal operation, solves the earth connection and installs the confusion, the safe risk problem that forgets etc. and bring.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and therefore the scope of the present invention shall be subject to the protection scope of the claims.
Claims (8)
1. The position monitoring device for the grounding wire of the transformer substation is characterized by comprising a grounding pile (1), wherein the grounding pile (1) comprises a base (11) and a fixing plate (12), the fixing plate (12) is vertically connected with the base (11), the surface of the fixing plate (12) is vertically arranged, a fixing hole is formed in the position, close to the outer end, of the fixing plate (12), and the grounding pile (1) is connected with a grounding conductor (2) and a grounding terminal (3) through the base (11) and the fixing hole (12) respectively; the ground connection pile is characterized in that a pressure sensor (4) is arranged at the position of the fixing hole, the pressure sensor (4) is respectively connected with a power supply (5) and a wireless communication module (6), and the power supply (5) and the wireless communication module (6) are arranged on the ground connection pile (1).
2. The position monitoring device for the grounding wire of the transformer substation as claimed in claim 1, wherein the pressure sensor (4) is mounted on one side of the fixing plate (12), a threaded hole is formed in the center of the pressure sensor and matched with the fixing hole, and the stress surface of the pressure sensor (4) is located on the outer side.
3. The position monitoring device for the grounding wire of the transformer substation as claimed in claim 2, wherein the grounding terminal (3) is a cylinder, the front end of the grounding terminal (3) is provided with a grounding wire connecting part (31), the tail end of the grounding terminal is provided with a connecting screw rod (32), the connecting screw rod (32) is matched with the fixing hole and is provided with a fastening nut (33), the head end of the connecting screw rod (32) is provided with a circular plate (321), the area of the circular plate (321) is larger than that of the fixing hole, and the tail end of the connecting screw rod (32) is provided with a small hole (322).
4. The position monitoring device for the grounding wire of the transformer substation as claimed in claim 3, wherein the grounding wire connecting part (31) is provided with a threaded hole penetrating through the grounding terminal in the radial direction, the threaded hole is provided with a bolt in a matching manner, and the grounding wire connecting part (31) is provided with a connecting plane (311) at one side of the opening of the threaded hole.
5. The position monitoring device for the grounding wire of the substation as claimed in claim 3, wherein the fastening nut (33) is provided with a dovetail (331) at the outer side thereof, and the front end of the fastening nut (331) is provided with a gasket (332), and the area of the gasket (332) is larger than that of the fixing hole.
6. The position monitoring device for the grounding wire of the substation as claimed in claim 4, wherein the grounding wire connecting part (31) is connected with the head end of the grounding wire through a bolt, and the tail end of the grounding wire is provided with a short circuit bus clip which is respectively connected with the A, B and C three-phase wires.
7. The device for monitoring the position of the grounding wire of the substation according to claim 1, characterized in that the pressure sensor (4) is connected with a charge amplifier (7), and the charge amplifier (7) sends a signal to a computer system through a wireless communication module (6).
8. The position monitoring device for the grounding wire of the transformer substation according to claim 1, wherein a shell is sleeved outside the grounding pile (1), mounting holes are respectively formed in two sides of the shell corresponding to the fixing holes, the aperture of each mounting hole is larger than the outer diameter of the grounding terminal (3), and a rubber plug is arranged in the mounting holes in a matching manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211027176.7A CN115420413A (en) | 2022-08-25 | 2022-08-25 | Position monitoring device of transformer substation grounding wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202211027176.7A CN115420413A (en) | 2022-08-25 | 2022-08-25 | Position monitoring device of transformer substation grounding wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115420413A true CN115420413A (en) | 2022-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211027176.7A Pending CN115420413A (en) | 2022-08-25 | 2022-08-25 | Position monitoring device of transformer substation grounding wire |
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| CN (1) | CN115420413A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205945248U (en) * | 2016-08-30 | 2017-02-08 | 山东鲁能奥特科技有限公司 | Substation grounding line real -time monitoring system |
| CN112701784A (en) * | 2020-12-16 | 2021-04-23 | 国网江苏省电力有限公司检修分公司 | Online ground wire management system based on measurement and control locking of integrated automation transformer substation |
| CN216746207U (en) * | 2021-07-30 | 2022-06-14 | 珠海优特电力科技股份有限公司 | Ground wire hanging state detection device |
-
2022
- 2022-08-25 CN CN202211027176.7A patent/CN115420413A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205945248U (en) * | 2016-08-30 | 2017-02-08 | 山东鲁能奥特科技有限公司 | Substation grounding line real -time monitoring system |
| CN112701784A (en) * | 2020-12-16 | 2021-04-23 | 国网江苏省电力有限公司检修分公司 | Online ground wire management system based on measurement and control locking of integrated automation transformer substation |
| CN216746207U (en) * | 2021-07-30 | 2022-06-14 | 珠海优特电力科技股份有限公司 | Ground wire hanging state detection device |
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