CN110398660A - A kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device - Google Patents
A kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device Download PDFInfo
- Publication number
- CN110398660A CN110398660A CN201910707467.2A CN201910707467A CN110398660A CN 110398660 A CN110398660 A CN 110398660A CN 201910707467 A CN201910707467 A CN 201910707467A CN 110398660 A CN110398660 A CN 110398660A
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- detection
- earthing
- end shield
- pole
- ground connection
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/0084—Arrangements for measuring currents or voltages or for indicating presence or sign thereof measuring voltage only
-
- 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
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Abstract
A kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device, including pedestal and end shield ground connection lid；It is characterized by also including earthing pole, holddown spring, measure loop and monitoring circuits；Measure loop includes earthing detection pole, detection spring, detection light emitting diode, battery pack and detection switch；Monitoring circuit on-line includes detection light emitting diode, voltage monitor, monitoring power supply, the first monitoring switch and the second monitoring switch；Contact area is increased using plate earthing pole；It is provided by compressed spring for earthing pole and runs down power, and earthing pole is placed in the groove in end shield ground connection lid, the both ends of earthing pole are in contact with groove inner wall, so that stem is grounded；Through measure loop under ground state, by closing detection switch, ground state can be detected by detecting light emitting diode in the outside of end shield ground connection lid, to guarantee the safe and stable operation of grid equipment to the greatest extent.
Description
Technical field
The invention belongs to detection device field more particularly to a kind of end shield of high-voltage bushing earthing detections and on-line monitoring to fill
It sets.
Background technique
The capacitive bushing of the oilpaper electrical equipment one of important as electric system, it is exhausted over the ground to not only act as lead
Edge also has the function of fixed supporting wire.In normal operation, bottom shielding of bushing needs reliable ground to casing.At this stage, most of
Bottom shielding of bushing earthing mode be all made of it is built-in, i.e., ground connection lid pass through spring leaf and bottom shielding of bushing stem connection type.It is such
Although mode is the most reliable a kind of in current several earthing modes, but after ground connection covers, it is good whether end shield is grounded
It can not learn well；The capacitive bushing of oilpaper in the process of running, since the factors such as spring failure cause at bottom shielding of bushing
When imperfect earth, end shield position can generate floating potential, generate the shelf depreciation of low energy, if fault state cannot effectively be found
It handles in time, may lead hair capacitance plate ablation after long-play, it is quick-fried to cause casing for bushing inner core shorted to earth
Fried possibility brings hidden danger to the safe and stable operation of power grid.
Summary of the invention
Present invention seek to address that the above problem, a kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device are provided.
End shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device, including pedestal and end shield ground connection lid；Also
Including earthing pole, holddown spring, measure loop and monitoring circuit；The measure loop includes earthing detection pole, detection spring, inspection
Survey light emitting diode, battery pack and detection switch；The side wall of the end shield ground connection lid is set close to the side of end shield ground connection lid top wall
Set a groove；The ground connection extremely plate；The earthing pole is horizontally placed in groove；What the earthing pole and end shield ground connection were covered
It is connected between roof by aforementioned holddown spring；A grounding through hole is arranged in the center of the earthing pole；The end shield ground connection lid
Roof center setting one detection through-hole；The upper end of the earthing detection pole is placed in detection through-hole, under earthing detection pole
End is placed in aforementioned grounding through hole；The aperture of grounding through hole is greater than the diameter of the lower end cross section of earthing detection pole；The ground connection
Insulation limited block is provided between detection pole and detection through-hole；The earthing detection pole, detection spring, detection light emitting diode,
One end of battery pack and detection switch is sequentially connected electrically；The other end of the detection switch is connected with end shield ground connection lid.It is described
The one end for monitoring circuit on-line is electrically connected with aforementioned measure loop by plugging socket, other end ground connection；The on-line monitoring
Circuit includes monitoring light emitting diode, voltage monitor, monitoring power supply, the first monitoring switch and the second monitoring switch；It is described
One end of first monitoring switch is grounded, and the other end is successively electrically connected with monitoring power supply, monitoring light emitting diode and plug socket；
The voltage monitor is parallel to the both ends of monitoring power supply；One end of second monitoring switch is grounded, the other end and plug
Socket is electrically connected.Earthing pole is horizontally placed in groove, the both ends of earthing pole and is set to end under the action of holddown spring
Groove inner wall on screen ground connection lid side wall is in contact, and is in contact so that earthing pole preferably be made to be grounded lid with end shield, Jin Ershi
Stem is preferably grounded effect.The aperture of grounding through hole is greater than the diameter of the lower end cross section of earthing detection pole, so that
By being in contact with stem, stem is in contact with earthing pole for earthing detection pole, earthing pole and end shield ground connection lid be in contact and
It is grounded.Monitoring power supply provides power supply to monitor the light emitting diode in circuit on-line；Pass through voltage monitor patrol officer
It more can intuitively observe ring current electricity residue situation, when not enough power supply, be replaced in time.
The longitudinal section of end shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device, the earthing detection pole is in
T-type；The upper end of the earthing detection pole is placed in detection through-hole and is located at the top of insulation row limited block.On the one hand by end shield
Ground connection lid and earthing detection pole keep apart, and prevent it from contacting with each other；On the other hand, limit can be played the role of, when to set
When pipe end shield is overhauled, open end shield ground connection lid, under gravity, detection spring will not excessive tensile cause elasticity to change
Become, extends service life.
End shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device, if the holddown spring is set side by side with
Dry.
End shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device, the holddown spring are equidistantly set side by side
There are four setting；By the way that holddown spring is equidistantly set side by side, can make the earthing pole of plate more smoothly with stem phase
Contact, spring pressure effect under, make earthing pole preferably with stem reliable contacts；Four springs further increase simultaneously
Earthing Reliability does not influence the ground state of stem entirety wherein one to two springs follow the string or deformation occurs.
End shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device, the top of the detection spring are provided with
Button.When the elasticity of the holddown spring in end shield ground connection lid weakens, earthing detection pole can be made by way of button press
Tightly with stem reliable contacts, prevents from weakening the erroneous judgement caused to result due to spring, further improve and detect back
The accuracy on road.
End shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device, the top setting of the end shield ground connection lid
There is sealed rainproof cover；The button, detection through-hole, detection light emitting diode, battery pack, detection switch are respectively positioned on sealed rainproof cover
It is interior.Sealed rainproof cover is mainly used for protecting measure loop.Maintenance prerun is carried out in no matter being up or to casing
When, sealed rainproof cover is in a sealed state, and prevents natural cause or human factor from damaging to measure loop.Work as check man
After work, when having restored bottom shielding of bushing, when whether detection end shield is grounded good, just sealed rainproof cover is opened, detection is completed
Afterwards, sealed rainproof cover is restored to sealing state.
End shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device, the sealed rainproof cover and end shield are grounded
It is fixedly connected by fastening bolt between the pedestal and end shield ground connection lid between lid.
End shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device are socketed with sealing in the fastening bolt
Pad；It is sealed by setting and improves fixed firm and leakproofness.
End shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device, the button and detection spring are packaged in
In plastic casing.
End shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device, by being grounded lid structure to existing end shield
Improvement, increase earthing pole, holddown spring and measure loop；By using the earthing pole of plate, increase earthing pole and stem
Between contact area；The power run down is provided for earthing pole by compressed spring simultaneously, and earthing pole is placed in end shield and connects
In groove in ground lid, the both ends of earthing pole are in contact with the inner wall of groove, so that the realization that stem is more reliable
Ground connection；By earthing detection pole, detection spring included by measure loop, light emitting diode, battery pack and detection switch are detected,
Under ground state, by closing detection switch, it can be docked by detection light emitting diode in the outside of end shield ground connection lid
Ground state is detected, and is simple and efficient, to ensure that the safe and stable operation of grid equipment to the greatest extent.
Detailed description of the invention
Fig. 1 is end shield of high-voltage bushing earthing detection described in the embodiment of the present invention one and on-Line Monitor Device structural schematic diagram；
Wherein 1- pedestal, 2- gasket, 3- fastening bolt, 4- end shield ground connection lid, 5- stem, 6- earthing pole, 7- holddown spring,
8- earthing detection pole, 9- insulation limited block, 10- sealed rainproof cover, 11- detect light emitting diode, 12- button, 13- monitoring electricity
Source, 14- voltage monitor, 15- monitor light emitting diode, the first monitoring switch of 16-, the second monitoring switch of 17-, 18- detection
Switch, 19- battery pack.
Specific embodiment
Below by accompanying drawings and embodiments to end shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device into
Row is described in detail.
End shield of high-voltage bushing earthing detection of the present invention and on-Line Monitor Device, as shown in Figure 1, including pedestal 1 and end
Screen ground connection lid 4；It further include earthing pole 6, holddown spring 7, measure loop and monitoring circuit；The measure loop includes earthing detection
Pole 8, detection spring, detection light emitting diode 11, battery pack 19 and detection switch 18；The side wall of the end shield ground connection lid 4 is close
A groove is arranged in the side that end shield is grounded 4 roof of lid；The earthing pole 6 is plate；The earthing pole 6 is horizontally placed on groove
It is interior；It is connected between the earthing pole 6 and the roof of end shield ground connection lid 4 by aforementioned holddown spring 7；In the earthing pole 6
A grounding through hole is arranged in the heart；The one detection through-hole of center setting of the roof of the end shield ground connection lid 4；The earthing detection pole 8
Upper end is placed in detection through-hole, and the lower end of earthing detection pole 8 is placed in aforementioned grounding through hole；The earthing detection pole 8 and detection
Insulation limited block 9 is provided between through-hole；The earthing detection pole 8, detection spring, detection light emitting diode 11, battery pack 19
It is sequentially connected electrically with one end of detection switch 18；The other end of the detection switch 18 is connected with end shield ground connection lid 4.Earthing pole
6 are horizontally placed in groove, and the both ends of earthing pole 6 are grounded on 4 side wall of lid with end shield is set under the action of holddown spring 7
Groove inner wall is in contact, and is in contact so that earthing pole 6 preferably be made to be grounded lid 4 with end shield, and then is that stem 5 is preferably real
Existing earthing effect.
The one end in the on-line monitoring circuit is electrically connected with aforementioned measure loop by plugging socket, other end ground connection；
The on-line monitoring circuit includes monitoring light emitting diode 15, voltage monitor 14, monitoring power supply 13, the first monitoring switch 16
With the second monitoring switch 17；One end of first monitoring switch 16 is grounded, and the other end successively shines with monitoring power supply 13, monitoring
Diode 15 and plug socket are electrically connected；The voltage monitor 14 is parallel to the both ends of monitoring power supply 13；Described second
One end of monitoring switch 17 is grounded, and the other end is electrically connected with plug socket.Monitoring power supply 13 is to monitor shining for circuit on-line
Diode provides power supply, and replaceable design can be used in power supply, and when electric quantity of power supply deficiency, convenient disassembly at any time is replaced, no
Influence the normal operation of casing；Ring current electricity more can be intuitively observed by 14 patrol officer of voltage monitor
Remaining situation when not enough power supply, is replaced in time.
The longitudinal section of earthing detection pole 8 is T-shaped；The upper end of the earthing detection pole 8 is placed in detection through-hole and is located at exhausted
The top of edge row limited block.On the one hand end shield is grounded lid 4 and earthing detection pole 8 keeps apart, prevent it from contacting with each other；It is another
Aspect can play the role of limit, when overhauling to bottom shielding of bushing, open end shield and be grounded lid 4, in the effect of gravity
Under, detection spring will not excessive tensile lead to elastic change, extend service life；The holddown spring 7 is equidistantly set side by side
There are four；The top of the detection spring is provided with button 12；The top of the end shield ground connection lid 4 is provided with sealed rainproof cover
10；The button 12, detection through-hole, detection light emitting diode 11, battery pack 19, detection switch 18 are respectively positioned on sealed rainproof cover 10
It is interior.Sealed rainproof cover 10 is mainly used for protecting measure loop.Overhaul in no matter being up or to casing pre-
When examination, sealed rainproof cover 10 is in a sealed state, and prevents natural cause or human factor from damaging to measure loop.Work as inspection
After repairing work, when having restored bottom shielding of bushing, when whether detection end shield is grounded good, just sealed rainproof cover 10 is opened, is examined
After the completion of survey, sealed rainproof cover 10 is restored to sealing state.It is between the sealed rainproof cover 10 and end shield ground connection lid 4 and described
It is fixedly connected by fastening bolt 3 between pedestal 1 and end shield ground connection lid 4；Gasket 2 is socketed in the fastening bolt 3；It is logical
It crosses setting sealing and improves fixed firm and leakproofness；The button 12 and detection spring are packaged in plastic casing.
When carrying out earthing detection, under the action of four springs, middle section can be abutted against earthing pole 6 with end shield stem 5
Touching, and earthing pole 6 is grounded lid 4 with end shield by its both ends by four springs and is reliably connected, when end shield ground connection lid 4 and pedestal 1
After being reliably connected by fastening bolt 3, end shield ground connection 4 ontology of lid is in ground state, so that end shield stem 5 is also at ground connection
State.With 5 touching position of stem there are a cylindrical grounding through hole among earthing pole 6, the tail end of earthing detection pole 8 is passed through
6 middle circle column grounding through hole of earthing pole, which is not in contact with it, directly to connect with stem 5, and the upper end of earthing detection pole 8 passes through exhausted
Edge limited block 9 separates earthing detection pole 8 and end shield ground connection lid 4, and making it, there is no connections electrically.On earthing detection pole 8
Face is equipped with detection spring, is encapsulated in plastic button 12 together.After the completion of casing is overhauled at scene, bottom shielding of bushing is grounded lid 4
After being reliably connected with pedestal 1, after the detection switch 18 on earthing detection circuit is closed, if 5 reliable ground of stem, at circuit
In on state, detecting light emitting diode 11 will be lighted, and illustrate end shield reliable ground.
Stem 5 is in contact with 6 middle position of earthing pole, and earthing pole 6 is connected with end shield ground connection 4 ontology of lid, overhauls
After the completion, end shield ground connection lid 4 is in ground state, so that stem 5 is in ground state.Earthing detection pole 8 not with end
Screen ground connection lid 4, earthing pole 6 are in contact, and directly contact with stem 5.If stem 5 is grounded well, where earthing detection pole 8
Circuit conducting, detection switch 18 be closed after, detection light emitting diode 11 light, service personnel can intuitively find out stem
5 ground state.
The connection monitored on-line between circuit and button 12 is designed using plug-in type, when equipment power failure is overhauled, is beaten
Sealed rainproof cover 10 is opened, on-line monitoring circuit and the wiring of button 12 are pulled out, it is not only convenient to overhaul but also will not be to monitoring on-line back
Road damages.Casing in normal operation, if end shield reliable ground, is closed the first monitoring switch 16 at this time, disconnects the second prison
Switch 17 is surveyed, circuit is in the conductive state, and monitoring 15 lamp of light emitting diode is bright, and patrol officer can intuitively see bottom shielding of bushing
Ground state；If after being closed the first monitoring switch 16, lamp does not have bright, then illustrates that end shield does not have reliable ground, there is suspension electricity
Position, can close rapidly the second monitoring switch 17 at this time, make bottom shielding of bushing by on-line monitoring circuit temporary grounding, utmostly
The safe and stable operation that ensure that equipment.
Claims (9)
1. a kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device, including pedestal (1) and end shield ground connection lid (4)；It is special
Sign is: further including earthing pole (6), holddown spring (7), measure loop and monitoring circuit；The measure loop includes ground connection inspection
Survey pole (8), detection spring, detection light emitting diode (11), battery pack (19) and detection switch (18)；The end shield ground connection lid
(4) groove is arranged close to the side that end shield is grounded lid (4) roof in side wall；The earthing pole (6) is plate；The earthing pole
(6) it is horizontally placed in groove；Pass through aforementioned holddown spring (7) between the earthing pole (6) and the roof of end shield ground connection lid (4)
It is connected；A grounding through hole is arranged in the center of the earthing pole (6)；The center setting one of the roof of the end shield ground connection lid (4)
Detect through-hole；The upper end of the earthing detection pole (8) is placed in detection through-hole, and the lower end of earthing detection pole (8) is placed in aforementioned connect
In ground through-hole；The aperture of grounding through hole is greater than the diameter of the lower end cross section of earthing detection pole (8)；The earthing detection pole (8)
Insulation limited block (9) is provided between detection through-hole；The earthing detection pole (8), detection spring, detection light emitting diode
(11), one end of battery pack (19) and detection switch (18) is sequentially connected electrically；The other end and end shield of the detection switch (18)
Ground connection lid (4) is connected；The one end in the on-line monitoring circuit is electrically connected with aforementioned measure loop by plugging socket, another
End ground connection；The on-line monitoring circuit include detection light emitting diode (15), voltage monitor (14), monitoring power supply (13),
First monitoring switch (16) and the second monitoring switch (17)；One end of first monitoring switch (16) is grounded, and the other end is successively
It is electrically connected with monitoring power supply (13), detection light emitting diode (15) and plug socket；The voltage monitor (14) is in parallel
In the both ends of monitoring power supply (13)；One end of second monitoring switch (17) is grounded, and the other end is electrically connected with plug socket.
2. end shield of high-voltage bushing earthing detection and on-Line Monitor Device according to claim 1, it is characterised in that: the ground connection
The longitudinal section for detecting pole (8) is T-shaped；The upper end of the earthing detection pole (8) is placed in detection through-hole and is located at insulation row limit
The top of block.
3. end shield of high-voltage bushing earthing detection and on-Line Monitor Device according to claim 2, it is characterised in that: the compression
Spring (7) is set side by side with several.
4. end shield of high-voltage bushing earthing detection and on-Line Monitor Device according to claim 3, it is characterised in that: the compression
There are four spring (7) is equidistantly set side by side.
5. end shield of high-voltage bushing earthing detection and on-Line Monitor Device according to claim 4, it is characterised in that: the detection
The top of spring is provided with button (12).
6. end shield of high-voltage bushing earthing detection and on-Line Monitor Device according to claim 5, it is characterised in that: the end shield
The top of ground connection lid (4) is provided with sealed rainproof cover (10)；The button (12), detection through-hole, detection light emitting diode (11),
Battery pack (19), detection switch (18) are respectively positioned in sealed rainproof cover (10).
7. end shield of high-voltage bushing earthing detection and on-Line Monitor Device according to claim 6, it is characterised in that: the sealing
Pass through fastening bolt between the pedestal (1) and end shield ground connection lid (4) between rain cover (10) and end shield ground connection lid (4)
(3) it is fixedly connected.
8. end shield of high-voltage bushing earthing detection and on-Line Monitor Device according to claim 7, it is characterised in that: the fastening
Gasket (2) are socketed on bolt (3).
9. end shield of high-voltage bushing earthing detection and on-Line Monitor Device according to claim 8, it is characterised in that: the button
(12) it is packaged in plastic casing with detection spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910707467.2A CN110398660A (en) | 2019-08-01 | 2019-08-01 | A kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910707467.2A CN110398660A (en) | 2019-08-01 | 2019-08-01 | A kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110398660A true CN110398660A (en) | 2019-11-01 |
Family
ID=68327117
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910707467.2A Pending CN110398660A (en) | 2019-08-01 | 2019-08-01 | A kind of end shield of high-voltage bushing earthing detection and on-Line Monitor Device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110398660A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141961A (en) * | 2019-12-06 | 2020-05-12 | 国网冀北电力有限公司电力科学研究院 | Sensor and transformer bushing monitoring system |
| CN111220828A (en) * | 2020-03-06 | 2020-06-02 | 广东电网有限责任公司 | Special device for transformer bushing tap test |
| CN112600112A (en) * | 2020-12-14 | 2021-04-02 | 国网山东省电力公司烟台供电公司 | Special tool for grounding and opening FRB type end screen of capacitive bushing |
| CN113820626A (en) * | 2021-10-15 | 2021-12-21 | 云南电力技术有限责任公司 | End screen grounding state detection system and method |
| CN113917199A (en) * | 2021-10-22 | 2022-01-11 | 广东电网有限责任公司 | Safe and quick connecting device |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111141961A (en) * | 2019-12-06 | 2020-05-12 | 国网冀北电力有限公司电力科学研究院 | Sensor and transformer bushing monitoring system |
| CN111220828A (en) * | 2020-03-06 | 2020-06-02 | 广东电网有限责任公司 | Special device for transformer bushing tap test |
| CN111220828B (en) * | 2020-03-06 | 2022-04-26 | 广东电网有限责任公司 | Special device for transformer bushing tap test |
| CN112600112A (en) * | 2020-12-14 | 2021-04-02 | 国网山东省电力公司烟台供电公司 | Special tool for grounding and opening FRB type end screen of capacitive bushing |
| CN113820626A (en) * | 2021-10-15 | 2021-12-21 | 云南电力技术有限责任公司 | End screen grounding state detection system and method |
| CN113917199A (en) * | 2021-10-22 | 2022-01-11 | 广东电网有限责任公司 | Safe and quick connecting device |
| CN113917199B (en) * | 2021-10-22 | 2024-02-13 | 广东电网有限责任公司 | Safe and quick connecting device |
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Application publication date: 20191101 |
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| RJ01 | Rejection of invention patent application after publication |