CN114122997B - Self-adaptive insulating isolation device and unilateral electrified overhaul method based on same - Google Patents
Self-adaptive insulating isolation device and unilateral electrified overhaul method based on same Download PDFInfo
- Publication number
- CN114122997B CN114122997B CN202111420137.9A CN202111420137A CN114122997B CN 114122997 B CN114122997 B CN 114122997B CN 202111420137 A CN202111420137 A CN 202111420137A CN 114122997 B CN114122997 B CN 114122997B
- Authority
- CN
- China
- Prior art keywords
- insulating
- board
- insulating partition
- partition board
- isolating switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 30
- 238000005192 partition Methods 0.000 claims abstract description 79
- 238000012423 maintenance Methods 0.000 claims abstract description 36
- 238000009413 insulation Methods 0.000 claims abstract description 23
- 230000007935 neutral effect Effects 0.000 claims description 12
- 125000006850 spacer group Chemical group 0.000 claims description 10
- 230000004888 barrier function Effects 0.000 claims description 9
- 230000003044 adaptive effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 239000003822 epoxy resin Substances 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims 1
- 238000001514 detection method Methods 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000010485 coping Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000008447 perception Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B3/00—Apparatus specially adapted for the manufacture, assembly, or maintenance of boards or switchgear
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Power Engineering (AREA)
- Train Traffic Observation, Control, And Security (AREA)
Abstract
The utility model provides a unilateral electrified maintenance method based on self-adaptation insulating isolation device and self-adaptation insulating isolation device, the self-adaptation insulating isolation device includes: the insulation partition board is arranged on the telescopic support frame and is used for providing an insulation and isolation operation area for operators; the movable chassis is used for bearing the insulating partition plate, the distance measuring equipment, the telescopic support frame, the rectangular coordinate moving platform and the main controller; the distance measuring equipment is arranged at the top of the telescopic support frame; the telescopic support frame is arranged on the rectangular coordinate moving platform and used for driving and adjusting the position of the insulating partition board in the vertical direction of the horizontal plane; the rectangular coordinate moving platform is fixed on the movable chassis and used for driving and adjusting the position of the insulating partition board in the x-y direction of the horizontal plane; the main controller is connected with the distance measuring equipment and is used for the actions of the rectangular coordinate moving platform and the telescopic supporting frame. The invention can obtain the advantages of flexible deployment, self-adaptive adjustment of the insulating isolation protection area, unilateral live working and the like.
Description
Technical Field
The invention belongs to the field of overhaul of high-voltage equipment, and particularly relates to a self-adaptive insulating isolation device and a single-side live overhaul method of a high-voltage isolating switch based on the device.
Background
The high-voltage isolating switch is an important device in a conveying line, but is often affected by severe environments such as wind, rain, snow, dirt, condensation, ice, thick frost and the like, and the problems of equipment aging or damage and the like are easily caused. Therefore, the power grid system needs to be overhauled timely and conveniently so as to ensure the normal operation of the power grid system. However, in the conventional maintenance operation mode, the two ends of the high-voltage isolating switch are required to be kept in a power-off state so as to ensure the safety of operators in a high-voltage environment. The operation mode of power-off maintenance seriously affects the normal operation of the power grid, and causes huge potential maintenance cost.
In this case, how to realize a safety detection method in a single-side electrification state is an important and urgent problem in the field of high-voltage disconnecting switch maintenance. At present, chinese patent publication No. CN102761066a proposes an insulating device for single-side live overhaul of an isolating switch, which comprises an insulating plate, a T-shaped caliper, a U-shaped clamping seat and an insulating rod, wherein the top of a cross arm of the T-shaped caliper is provided with an insulating plate clamping groove, the insulating plate is movably clamped in the insulating plate clamping groove, a connecting bolt is arranged on the U-shaped clamping seat, a bolt hole is arranged on a vertical rod of the T-shaped caliper, the connecting bolt is in the bolt hole in a threaded manner, a nut is arranged in the center of a bottom plate of the U-shaped clamping seat, a screw is arranged in the nut, and a top plate is arranged at the top end of the screw penetrating through the screw and entering into the U-shaped groove of the U-shaped clamping seat. The device can provide an insulating and isolating operation area based on the insulating plate, and realizes the maintenance operation of the isolating switch in a single-side electrified state. However, the existing insulation device is pre-estimated in safety distance, is fixedly installed, cannot adaptively adjust an insulation isolation protection area during operation, cannot move in a portable mode, and further lacks the perception of key external information such as operation safety distance, insulation position, electrified position and the like.
Therefore, the high-voltage isolating switch detection method based on the device lacks the capability of coping with safety uncertainty and is difficult to adapt to the operation requirement of the isolating switch safety maintenance under different voltage levels.
Disclosure of Invention
In order to solve the defects in the prior art, the invention aims to provide a self-adaptive insulating isolation device and a single-side live overhaul method of a high-voltage isolating switch based on the device. The safety maintenance method is based on the movable self-adjusting insulating isolation device, and can realize maintenance operation of the high-voltage isolating switch in a single-side electrified state.
The invention adopts the following technical scheme. A first aspect of the present invention provides an adaptive insulating isolation device comprising: the device comprises an insulating partition board, a movable chassis, a distance measuring device, a telescopic support frame, a rectangular coordinate moving platform and a main controller;
the insulation partition plate is arranged on the telescopic support frame and is used for providing an insulation and isolation operation area for operators;
the movable chassis is used for bearing the insulating partition plate, the distance measuring equipment, the telescopic support frame, the rectangular coordinate moving platform and the main controller;
the distance measuring equipment is arranged at the top of the telescopic support frame;
the telescopic support frame is arranged on the rectangular coordinate moving platform and used for driving and adjusting the position of the insulating partition board in the vertical direction of the horizontal plane;
the rectangular coordinate moving platform is fixed on the movable chassis and used for driving and adjusting the position of the insulating partition board in the x-y direction of the horizontal plane;
the main controller is connected with the distance measuring equipment and used for moving the rectangular coordinate moving platform and the telescopic supporting frame.
Preferably, the insulating separator is made of FR4 epoxy resin and has a thickness of 6 mm, a length of 130 cm and a width of 60 cm.
Preferably, 4 universal wheels are installed on the movable chassis below the rectangular coordinate moving platform and used for dragging the whole self-adaptive insulating isolation device to an operation site by the electric engineering vehicle.
Preferably, the distance measuring device is a lidar.
Preferably, the telescopic support frame is used for adjusting the position of the insulating partition board in the vertical direction of the horizontal plane through the driving of the motor;
the rectangular coordinate moving platform is driven by a motor to adjust the position of the insulating partition board in the x-y direction of the horizontal plane.
Preferably, the main controller can automatically control the feeding of the rectangular coordinate moving platform in the x-y direction of the horizontal plane and the feeding of the telescopic support frame in the vertical direction according to the relative position information among the insulating partition board, the high-voltage isolating switch and the operating personnel observed by the laser radar.
The second aspect of the invention provides a unilateral electrified overhaul method based on the self-adaptive insulating isolation device, which is characterized by comprising the following steps:
step 1, an isolating switch is switched to a switching-off position;
step 2, power off the isolating switch on one side;
step 3, installing and initializing a movable self-adaptive insulating isolation device;
step 4, in the insulating isolation protection area, overhauling the isolating switch at the power-off end, observing the positions of the insulating partition plate, the high-voltage isolating switch and an operator in real time by the distance measuring equipment 3, sending out an alarm when the distance is smaller than the safe distance, and adaptively adjusting the position of the insulating partition plate above the safe distance, so that the overhauling operator works normally;
and 5, after the maintenance operation is finished, the maintenance personnel leave the maintenance position, and the self-adaptive insulating isolation device leaves the maintenance position.
Preferably, step 3 specifically includes:
step 3.1, dragging the whole self-adaptive insulating isolation device to an operation site by an electric engineering truck for deployment;
step 3.2, controlling the rectangular coordinate moving platform and the telescopic support frame to adjust the feeding distance of the insulating partition board in the y-axis direction and the vertical z-axis direction, so that the insulating partition board can completely cover the high-voltage isolating switch in the y-axis direction and the vertical z-axis direction;
and 3.3, with the aid of the distance measuring equipment, the rectangular coordinate moving platform adjusts the feeding in the x-axis direction, so that the insulating partition plate and the high-voltage isolating switch contact on the electrified side are separated by L cm in the x-axis direction, namely the allowable minimum safety distance.
Preferably, in step 3.3, if the coordinate of the high-voltage isolating switch contact on the charged side in the x-axis direction of the horizontal plane is x Electric power The rectangular coordinate moving platform adjusts the initialized coordinates in the x-axis direction as expressed in the following formula,
x board board ＝x Electric power -L
Wherein:
x board board The initialization coordinates of the insulating spacers in the x-axis direction are shown.
Preferably, in step 4, the position of the insulating spacer is adaptively adjusted according to the following formula,
wherein:
x board board Indicating the initialized coordinates for the insulating barrier in the x-axis direction,
x electroless power Representing the x-axis coordinates of the high voltage isolator contactor on the neutral side,
epsilon represents the allowable adjustable range of motion to facilitate actual deployment,
x electric power Representing the coordinates of the high voltage isolating switch contact on the charged side in the x axial direction of the horizontal plane,
l represents the minimum safety distance of the high voltage disconnector contacts of the live side,
x human body Indicating the position of the person(s),
L protection of The shortest distance between the worker and the insulating spacer is shown.
Preferably, step 4 specifically includes:
step 4.1, setting that the shortest distance between the operator and the insulating partition board is not less than L when the operator performs maintenance operation on the power-off side of the high-voltage isolating switch Protection of Cm to ensure an effective and safe working interval;
step 4.2, in the process of maintenance operation, the distance measuring equipment 3 observes the positions of the insulating partition plate, the high-voltage isolating switch and an operator in real time;
step 4.3, judging whether the distance between the operator and the high-voltage isolating switch contact at the electrified side is greater than or equal to L Protection of If the length of the insulating partition board is more than or equal to +L cm, continuing to execute the step 4.4, if the length of the insulating partition board is less than the length of the insulating partition board, giving an alarm, and positioning the insulating partition board at the position x in the x-axis direction of the insulating partition board Board board Fixed as an initialized position, i.e. x in step 3.3 Board board ＝x Electric power -L。
And 4.4, the positions of the insulating partition plates, the high-voltage isolating switch and operators are adaptively adjusted according to the positions of the distance measuring equipment 3, and the maintenance operators work normally. In a further preferred but non-limiting embodiment of the present invention, step 4.4 specifically comprises:
if the position x of a person Human body Position x in x-axis with high voltage disconnector contacts on the neutral side Electroless power The distance between the two is greater than or equal to L Protection of Cm, the position x of the insulating partition board in the x-axis direction Board board Expressed in terms of the following formula,
x board board ＝x Electroless power +ε
Wherein:
epsilon represents the allowable adjustable play distance for practical deployment, which takes into account that the insulating plate cannot overlap with the high voltage disconnector contacts on the neutral side;
if the position x of a person Human body Position x in x-axis with high voltage disconnector contacts on the neutral side Electroless power The distance between the two is smaller than L Protection of Cm, at the same time, person position L Protection of Position x of high-voltage isolating switch contact with live side Electric power The distance between the two is greater than or equal to L Protection of +L cm, then the position x of the insulating barrier in the x-axis direction at this point Board board Expressed in terms of the following formula,
x board board ＝x Human body +L Protection of
Wherein:
x board board Indicating the initialized coordinates for the insulating barrier in the x-axis direction,
x human body Indicating the position of the person(s),
L protection of The shortest distance between the worker and the insulating spacer is shown.
Compared with the prior art, the movable self-adjusting insulating isolation device has the advantages that the movable self-adjusting insulating isolation device comprises a movable chassis, a rectangular coordinate moving platform, a telescopic support frame, an insulating baffle, a laser radar and the like. The laser radar can sense external environments such as operators, isolating switches and the like; the insulating baffle provides an insulating isolation protection area; the rectangular coordinate moving platform can adjust the position of the insulating baffle plate relative to an operator or a high-voltage isolating switch; the movable chassis can realize quick deployment of the insulating isolation device. Therefore, the improved safety maintenance method and device for the voltage isolating switch can obtain the advantages of flexible deployment of the device, self-adaptive adjustment of an insulating isolation protection area, unilateral live working and the like. More specifically:
1. compared with the traditional power-off overhaul operation mode, the safety overhaul method for the isolating switch can operate in a single-side electrified state, and overhaul cost is reduced.
2. Particularly, the invention provides a single-side live overhaul method of a high-voltage isolating switch based on self-adaptive insulation isolation, and the designed insulation isolating device is provided with position measurement, so that the relative positions of an operator, a live isolating switch contact and an insulating plate can be sensed independently, and an insulation protection area can be regulated in a self-adaptive manner, and the method has the advantages of high safety protection degree, convenience in use, strong universality and the like;
3. meanwhile, the invention realizes a movable self-adjusting insulating isolation device, compared with the existing insulating isolation device based on the insulating partition plate, the movable self-adjusting insulating isolation device can realize portable movement, can be rapidly deployed to an operation site, and improves maintenance work.
Drawings
FIG. 1 is a schematic diagram of a movable self-adjusting insulating isolation device according to an embodiment of the present invention;
fig. 2 is a flow chart of a method for safety maintenance of a high-voltage isolating switch according to an embodiment of the invention.
In the figure:
1-an insulating separator;
2-a movable chassis;
3-laser radar;
4-a telescopic support frame;
5-rectangular coordinate moving platform;
6-master.
Detailed Description
The present application is further described below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical solutions of the present invention and are not intended to limit the scope of protection of the present application.
As shown in fig. 1, embodiment 1 of the present invention provides an adaptive insulation isolation device, including: the system comprises an insulating partition board 1, a movable chassis 2, a laser radar 3, a telescopic support frame 4, a rectangular coordinate moving platform 5 and a main controller 6.
It should be noted that, when the adaptive insulation isolation device is deployed, the x-axis on the horizontal plane refers to a parallel line connecting two ends of the high-voltage isolation light, the corresponding y-axis refers to a vertical line connecting two ends of the high-voltage isolation light, the insulation partition board 1 is deployed parallel to the y-axis, and the corresponding z-axis refers to a vertical direction perpendicular to the x-y plane.
In a further preferred but non-limiting embodiment of the invention, the insulating separator 1 is made of FR4 epoxy resin, having a thickness of 6 mm, a length of 130 cm and a width of 60 cm. The insulating partition board 1 is installed on the telescopic support frame 4 and is used for providing insulating and isolating operation areas for operators.
In a further preferred but non-limiting embodiment of the invention, the movable chassis 2 carries further functional modules. More specifically, 4 universal wheels are installed on the movable chassis 2 below the rectangular coordinate moving platform 5, so that the whole self-adaptive insulating isolation device can be dragged to a working site by the electric engineering vehicle, and the convenience of deployment is improved. Meanwhile, in the use process, manual weight balancing can be performed at four corners of the movable chassis, so that the stability of the device is improved, and the device is prevented from overturning.
In a further preferred but non-limiting embodiment of the present invention, the lidar 3 is mounted on top of the telescopic support frame 4, so that the relative position of the insulating partition 1 and the high-voltage isolating switch and the relative position of the insulating partition and the operator can be observed in real time.
In a further preferred but non-limiting embodiment of the invention, the telescopic support 4 is mounted on a rectangular moving platform 5, and the position of the insulating partition 1 in the vertical direction of the horizontal plane can be adjusted by driving a motor.
In a further preferred but non-limiting embodiment of the invention, the rectangular moving platform 5 is fixed to the movable chassis 2, and the position of the insulating barrier 1 in the x-y direction of the horizontal plane can be adjusted by driving of a motor. The rectangular coordinate moving platform 5 is a driving mode of combining a permanent magnet synchronous motor with a ball screw, and a position instruction of the motor is given by the main controller 6 according to observation information of the laser radar 3.
In a further preferred but non-limiting embodiment of the present invention, the main controller 6 may automatically control the feeding of the rectangular moving platform 5 in the x-y direction of the horizontal plane and the feeding of the telescopic supporting frame 4 in the vertical direction according to the relative position information of the insulating partition 1, the high voltage isolating switch and the operator observed by the laser radar 3.
That is, the self-adaptive insulation isolation device can adjust the position of the insulation partition board 1 in the x-y direction of the horizontal plane through the rectangular coordinate moving platform 5 driven by the motor, and drive the telescopic support frame 4 to telescopically adjust the position of the insulation partition board 1 in the vertical direction, so that the designed insulation partition board 1 can be reliably moved to the fracture position of the 35kV isolating switch, the function of isolating the electrified side of the fracture of the isolating switch is achieved, and maintenance personnel can be ensured to maintain the other side of the fracture. The laser radar 3 arranged at the top of the telescopic support frame 4 can observe the relative positions of the insulating partition plate 1 and the high-voltage isolating switch and the relative positions of the insulating partition plate and operators in real time. The main controller 6 can automatically control the feeding of the rectangular coordinate moving platform 5 in the x-y direction of the horizontal plane and the feeding of the telescopic support frame 4 in the vertical direction according to the relative position information observed by the laser radar 3, and the self-adaptively adjusted insulating isolation protection area can be adjusted, so that the operation range and the safety range of maintenance personnel can be simultaneously considered.
In the present embodiment, the shortest distance L between the worker and the insulating separator 1 is defined Protection of =20 cm; the minimum safety distance l=40 cm between the insulating barrier 1 and the high-voltage disconnector contact on the live side is set.
As shown in fig. 2, embodiment 2 of the present invention provides a method for single-side live maintenance of a high-voltage isolating switch based on the adaptive insulation isolation device, which includes the following steps:
and step 1, the isolating switch is switched to a switching-off position.
And 2, powering off the single side of the isolating switch.
And 3, installing and initializing the movable self-adaptive insulating isolation device. In a further preferred but non-limiting embodiment of the present invention, step 3 specifically comprises:
and 3.1, dragging the whole self-adaptive insulating isolation device to an operation site by an electric engineering truck, and conveniently deploying the self-adaptive insulating isolation device.
And 3.2, an operator remotely controls the rectangular coordinate moving platform 5 and the telescopic support frame 4 to adjust the feeding distance of the insulating partition board 1 in the y-axis direction and the vertical z-axis direction, so that the insulating partition board 1 can completely cover the high-voltage isolating switch in the y-axis direction and the vertical z-axis direction.
And 3.3, with the aid of a laser radar, the rectangular coordinate moving platform 5 adjusts the feeding in the x-axis direction, so that the insulating partition board 1 and the high-voltage isolating switch contact on the electrified side are separated by L cm in the x-axis direction, namely the allowable minimum safety distance. If the coordinate of the high-voltage isolating switch contact on the charged side in the x axial direction of the horizontal plane is x Electric power The rectangular coordinate moving platform 5 adjusts the initialized coordinates in the x-axis direction as expressed by the following formula,
x board board ＝x Electric power -L
Wherein:
x board board The initialization coordinates of the insulating spacer 1 in the x-axis direction, that is, the initialization coordinates of the rectangular coordinate moving platform 5 in the x-axis direction are adjusted.
And 4, in the insulating isolation protection area, overhauling the isolating switch at the power-off end, observing the positions of the insulating partition board 1, the high-voltage isolating switch and an operator in real time by the laser radar 3, sending out an alarm when the position is smaller than a safe distance, and adaptively adjusting the position of the insulating partition board 1 above the safe distance, so that the overhauling operator can work normally. Specifically, the position of the insulating spacer 1 is adaptively adjusted in the following formula,
wherein:
x board board The initialization coordinates of the insulating barrier 1 in the x-axis direction are shown,
x electroless power Representing the x-axis coordinates of the high voltage isolator contactor on the neutral side,
epsilon represents the allowable adjustable range of motion to facilitate actual deployment,
x electric power Representing the coordinates of the high voltage isolating switch contact on the charged side in the x axial direction of the horizontal plane,
l represents the minimum safety distance of the high voltage disconnector contacts of the live side,
x human body Indicating the position of the person(s),
L protection of The shortest distance between the worker and the insulating barrier 1 is shown.
In a further preferred but non-limiting embodiment, step 4 specifically comprises:
step 4.1, setting that the shortest distance between the operator and the insulating partition board 1 is not less than L when the operator performs maintenance operation on the power-off side of the high-voltage isolating switch Protection of Cm to ensure an effective and safe working interval;
step 4.2, in the overhaul operation process, the laser radar 3 observes the positions of the insulating partition plate 1, the high-voltage isolating switch and an operator in real time;
step 4.3, judging whether the distance between the operator and the high-voltage isolating switch contact at the electrified side is greater than or equal to L Protection of If the length of the insulating partition board 1 is larger than or equal to +L cm, continuing to execute the step 4.4, if the length of the insulating partition board 1 is smaller than the length of the insulating partition board 1, giving an alarm, and positioning the insulating partition board 1 at the position x in the x-axis direction Board board Fixed as an initialized position, i.e. x in step 3.3 Board board ＝x Electric power -L。
And 4.4, the positions of the insulating partition board 1, the high-voltage isolating switch and operators are observed in real time according to the laser radar 3, the positions of the insulating partition board 1 are adaptively adjusted, and the maintenance operators work normally. In a further preferred but non-limiting embodiment of the present invention, step 4.4 specifically comprises:
if the position x of a person Human body Position x in x-axis with high voltage disconnector contacts on the neutral side Electroless power The distance between the two is greater than or equal to L Protection of Cm, the position x of the insulating spacer 1 in the x-axis direction Board board Expressed in terms of the following formula,
x board board ＝x Electroless power +ε
Wherein:
epsilon represents the allowable adjustable play distance for practical deployment, which takes into account that the insulating plate cannot overlap with the high voltage disconnector contacts on the neutral side;
if the position x of a person Human body Position x in x-axis with high voltage disconnector contacts on the neutral side Electroless power The distance between the two is smaller than L Protection of Cm, at the same time, person position L Protection of Position x of high-voltage isolating switch contact with live side Electric power The distance between the two is greater than or equal to L Protection of +L cm, then the position x of the insulating barrier in the x-axis direction at this point Board board Expressed in terms of the following formula,
x board board ＝x Human body +L Protection of
And 5, after the maintenance operation is finished, the maintenance personnel leave the maintenance position, and the self-adaptive insulating isolation device leaves the maintenance position.
In the invention, a safe overhaul method capable of allowing single-side electrification is provided for the overhaul requirement of a high-voltage isolating switch. More importantly, the invention provides a movable self-adjusting insulating isolation device. The device can be rapidly deployed to an operation site by means of the movable ground plate, then operators are monitored in real time, and the positions of the insulating partition plates are adjusted in a self-adaptive mode, so that safe and reliable insulating isolation protection areas are provided.
Compared with the prior art, the movable self-adjusting insulating isolation device has the advantages that the movable self-adjusting insulating isolation device comprises a movable chassis, a rectangular coordinate moving platform, a telescopic support frame, an insulating baffle, a laser radar and the like. The laser radar can sense external environments such as operators, isolating switches and the like; the insulating baffle provides an insulating isolation protection area; the rectangular coordinate moving platform can adjust the position of the insulating baffle plate relative to an operator or a high-voltage isolating switch; the movable chassis can realize quick deployment of the insulating isolation device. Therefore, the improved safety maintenance method and device for the voltage isolating switch can obtain the advantages of flexible deployment of the device, self-adaptive adjustment of an insulating isolation protection area, unilateral live working and the like. More specifically:
1. compared with the traditional power-off overhaul operation mode, the safety overhaul method for the isolating switch can operate in a single-side electrified state, and overhaul cost is reduced.
2. Particularly, the invention provides a single-side live overhaul method of a high-voltage isolating switch based on self-adaptive insulation isolation, and the designed insulation isolating device is provided with position measurement, so that the relative positions of an operator, a live isolating switch contact and an insulating plate can be sensed independently, and an insulation protection area can be regulated in a self-adaptive manner, and the method has the advantages of high safety protection degree, convenience in use, strong universality and the like;
3. meanwhile, the invention realizes a movable self-adjusting insulating isolation device, compared with the existing insulating isolation device based on the insulating partition plate, the movable self-adjusting insulating isolation device can realize portable movement, can be rapidly deployed to an operation site, and improves maintenance work.
While the applicant has described and illustrated the embodiments of the present invention in detail with reference to the drawings, it should be understood by those skilled in the art that the above embodiments are only preferred embodiments of the present invention, and the detailed description is only for the purpose of helping the reader to better understand the spirit of the present invention, and not to limit the scope of the present invention, but any improvements or modifications based on the spirit of the present invention should fall within the scope of the present invention.
Claims (7)
1. A single-sided live overhaul method based on an adaptive insulating isolation device, the adaptive insulating isolation device comprising: the device comprises an insulating partition board (1), a movable chassis (2), distance measuring equipment, a telescopic support frame (4), a rectangular coordinate moving platform (5) and a main controller (6); the insulation partition board (1) is arranged on the telescopic support frame (4) and is used for providing an insulation and isolation operation area for operators; the movable chassis (2) is used for bearing the insulating partition board (1), the distance measuring equipment, the telescopic support frame (4), the rectangular coordinate moving platform (5) and the main controller (6); the distance measuring equipment is arranged at the top of the telescopic support frame (4); the telescopic support frame (4) is arranged on the rectangular coordinate moving platform (5) and is used for driving and adjusting the position of the insulating partition board (1) in the vertical direction of the horizontal plane; the rectangular coordinate moving platform (5) is fixed on the movable chassis (2) and is used for driving and adjusting the position of the insulating partition board (1) in the x-y direction of the horizontal plane; the main controller (6) is connected with the distance measuring equipment and is used for the actions of the rectangular coordinate moving platform (5) and the telescopic supporting frame (4), and the method is characterized by comprising the following steps of:
step 1, an isolating switch is switched to a switching-off position;
step 2, power off the isolating switch on one side;
step 3, installing and initializing a movable self-adaptive insulating isolation device;
the step 3 specifically comprises the following steps:
step 3.1, dragging the whole self-adaptive insulating isolation device to an operation site by an electric engineering truck for deployment;
step 3.2, controlling the rectangular coordinate moving platform (5) and the telescopic support frame (4) to adjust the feeding distance of the insulating partition board (1) in the y-axis direction and the vertical z-axis direction, so that the insulating partition board (1) completely covers the high-voltage isolating switch in the y-axis direction and the vertical z-axis direction;
3.3, with the aid of distance measuring equipment, the rectangular coordinate moving platform (5) adjusts the feeding in the x-axis direction, so that the insulating partition board (1) and the high-voltage isolating switch contact on the charged side are separated by L cm in the x-axis direction, namely the allowable minimum safe distance;
step 4, in the insulating isolation protection area, overhauling the isolating switch at the power-off end, observing the positions of the insulating partition board (1), the high-voltage isolating switch and an operator in real time by the distance measuring equipment, sending an alarm when the distance is smaller than the safe distance, and adaptively adjusting the position of the insulating partition board (1) above the safe distance, wherein the overhauling operator works normally;
the position of the insulating partition board (1) is adaptively adjusted by the following formula,
wherein:
x board board The initialization coordinates of the insulating spacer (1) in the x-axis direction are shown,
x electroless power Representing the x-axis coordinates of the high voltage isolator contactor on the neutral side,
epsilon represents the allowable adjustable range of motion to facilitate actual deployment,
x electric power Representing the coordinates of the high voltage isolating switch contact on the charged side in the x axial direction of the horizontal plane,
l represents the minimum safety distance of the high voltage disconnector contacts of the live side,
x human body Indicating the position of the person(s),
L protection of Representing the shortest distance between the operator and the insulating partition board (1);
the step 4 specifically comprises the following steps:
step 4.1, setting that the shortest distance between the operator and the insulating partition board (1) is not less than L when the operator performs maintenance operation on the power-off side of the high-voltage isolating switch Protection of Cm to ensure an effective and safe working interval;
step 4.2, in the overhaul operation process, the distance measuring equipment observes the positions of the insulating partition plate (1), the high-voltage isolating switch and an operator in real time;
step 4.3, judging whether the distance between the operator and the high-voltage isolating switch contact at the electrified side is greater than or equal to L Protection of If the length of the insulating partition board (1) is more than or equal to +L cm, continuing to execute the step 4.4, if the length of the insulating partition board is less than the length of the insulating partition board, giving an alarm, and positioning the insulating partition board (1) at the position x in the x-axis direction Board board Fixed as an initialized position, i.e. x in step 3.3 Board board ＝
x Electric power -L；
Step 4.4, the position of the insulating partition plate (1) is adaptively adjusted according to the positions of the insulating partition plate (1), the high-voltage isolating switch and operators observed in real time by the distance measuring equipment, and the maintenance operators normally operate, wherein the step 4.4 specifically comprises the following steps:
if the position x of a person Human body Position x in x-axis with high voltage disconnector contacts on the neutral side Electroless power The distance between the two is greater than or equal to L Protection of Cm, the position x of the insulating partition board (1) in the x-axis direction Board board Expressed in terms of the following formula,
x board board ＝x Electroless power +ε
Wherein:
epsilon represents the allowable adjustable play distance for practical deployment, which takes into account that the insulating plate cannot overlap with the high voltage disconnector contacts on the neutral side;
if the position x of a person Human body Position x in x-axis with high voltage disconnector contacts on the neutral side Electroless power The distance between the two is smaller than L Protection of Cm, at the same time, person position L Protection of Position x of high-voltage isolating switch contact with live side Electric power The distance between the two is greater than or equal to L Protection of +L cm, then the position x of the insulating barrier in the x-axis direction at this point Board board Expressed in terms of the following formula,
x board board ＝x Human body +L Protection of
Wherein:
x board board The initialization coordinates of the insulating spacer (1) in the x-axis direction are shown,
x human body Indicating the position of the person(s),
L protection of Representing the shortest distance between the operator and the insulating partition board (1);
and 5, after the maintenance operation is finished, the maintenance personnel leave the maintenance position, and the self-adaptive insulating isolation device leaves the maintenance position.
2. The unilateral electrified overhaul method of claim 1, wherein:
in step 3.3, if the coordinate of the high-voltage isolating switch contact on the charged side in the x-axis direction of the horizontal plane is x Electric power The rectangular coordinate moving platform (5) adjusts the initial position in the x-axis directionThe chemical coordinates are expressed in terms of the following formula,
x board board ＝x Electric power -L
Wherein:
x board board The initialization coordinates of the insulating spacer (1) in the x-axis direction are shown.
3. The unilateral electrified overhaul method of claim 1, wherein:
the insulating separator (1) is made of FR4 epoxy resin, and has a thickness of 6 mm, a length of 130 cm and a width of 60 cm.
4. The unilateral electrified overhaul method of claim 1, wherein:
the movable chassis (2) below the rectangular coordinate moving platform (5) is provided with 4 universal wheels for the electric power engineering vehicle to drag the whole self-adaptive insulating isolation device to the operation site.
5. The unilateral electrified overhaul method of claim 1, wherein:
the distance measuring device is a laser radar (3).
6. The unilateral electrified overhaul method of claim 1, wherein:
the telescopic support frame (4) is used for adjusting the position of the insulating partition board (1) in the vertical direction of the horizontal plane through the driving of a motor;
the rectangular coordinate moving platform (5) is driven by a motor to adjust the position of the insulating partition board (1) in the x-y direction of the horizontal plane.
7. The unilateral electrified overhaul method of claim 5, wherein:
the main controller (6) automatically controls the feeding of the rectangular coordinate moving platform (5) in the x-y direction of the horizontal plane and the feeding of the telescopic support frame (4) in the vertical direction according to the relative position information among the insulating partition board (1), the high-voltage isolating switch and the operating personnel observed by the laser radar (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111420137.9A CN114122997B (en) | 2021-11-24 | 2021-11-24 | Self-adaptive insulating isolation device and unilateral electrified overhaul method based on same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111420137.9A CN114122997B (en) | 2021-11-24 | 2021-11-24 | Self-adaptive insulating isolation device and unilateral electrified overhaul method based on same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114122997A CN114122997A (en) | 2022-03-01 |
| CN114122997B true CN114122997B (en) | 2024-04-12 |
Family
ID=80369795
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111420137.9A Active CN114122997B (en) | 2021-11-24 | 2021-11-24 | Self-adaptive insulating isolation device and unilateral electrified overhaul method based on same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114122997B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117394210A (en) * | 2023-11-03 | 2024-01-12 | 国网山东省电力公司泰安供电公司 | Insulating partition plate mounting arm and control method |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202405620U (en) * | 2011-09-09 | 2012-08-29 | 云南电力试验研究院(集团)有限公司 | Intelligent test switch cabinet |
| CN102761066A (en) * | 2012-07-05 | 2012-10-31 | 山西省电力公司长治供电分公司 | Insulation device for unilateral hot-line maintenance of isolating switch |
| CN202643189U (en) * | 2012-06-13 | 2013-01-02 | 绍兴电力局 | Laser safety scanning alarm avoiding approaching high-layer electrified body |
| CN102891446A (en) * | 2012-11-13 | 2013-01-23 | 重庆市电力公司教育培训中心 | Insulation device for overhauling electric isolating switch |
| CN203870760U (en) * | 2013-12-30 | 2014-10-08 | 国网宁夏电力公司宁东供电公司 | Alarm for high voltage area in transformer station |
| CN104993414A (en) * | 2015-08-05 | 2015-10-21 | 国家电网公司 | Insulation barrier trolley for high-voltage switch cabinet |
| CN206542105U (en) * | 2017-03-24 | 2017-10-03 | 国网安徽省电力公司检修公司 | A kind of portable electric insulation retaining device |
| CN207392890U (en) * | 2017-09-28 | 2018-05-22 | 广州供电局有限公司 | Baffle |
| CN207557471U (en) * | 2017-10-13 | 2018-06-29 | 国网上海市电力公司 | A kind of livewire work on-line monitoring system |
| CN111179530A (en) * | 2020-01-07 | 2020-05-19 | 国网河北省电力有限公司 | Live-line area isolation device for GIS equipment of transformer substation |
| CN111474530A (en) * | 2020-04-05 | 2020-07-31 | 武汉大云物移智科技有限公司 | Working distance measuring system based on laser radar platform and using method thereof |
| CN211720113U (en) * | 2020-05-14 | 2020-10-20 | 李军 | Movable electric insulation baffle |
| CN112134196A (en) * | 2020-09-01 | 2020-12-25 | 国网江苏省电力有限公司盐城供电分公司 | A insulator spindle for electric power overhauls |
| CN214754981U (en) * | 2021-01-19 | 2021-11-16 | 南京厚泰电气科技有限公司 | Inside self-adaptation adjusting device of intelligence cubical switchboard |
-
2021
- 2021-11-24 CN CN202111420137.9A patent/CN114122997B/en active Active
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202405620U (en) * | 2011-09-09 | 2012-08-29 | 云南电力试验研究院(集团)有限公司 | Intelligent test switch cabinet |
| CN202643189U (en) * | 2012-06-13 | 2013-01-02 | 绍兴电力局 | Laser safety scanning alarm avoiding approaching high-layer electrified body |
| CN102761066A (en) * | 2012-07-05 | 2012-10-31 | 山西省电力公司长治供电分公司 | Insulation device for unilateral hot-line maintenance of isolating switch |
| CN102891446A (en) * | 2012-11-13 | 2013-01-23 | 重庆市电力公司教育培训中心 | Insulation device for overhauling electric isolating switch |
| CN203870760U (en) * | 2013-12-30 | 2014-10-08 | 国网宁夏电力公司宁东供电公司 | Alarm for high voltage area in transformer station |
| CN104993414A (en) * | 2015-08-05 | 2015-10-21 | 国家电网公司 | Insulation barrier trolley for high-voltage switch cabinet |
| CN206542105U (en) * | 2017-03-24 | 2017-10-03 | 国网安徽省电力公司检修公司 | A kind of portable electric insulation retaining device |
| CN207392890U (en) * | 2017-09-28 | 2018-05-22 | 广州供电局有限公司 | Baffle |
| CN207557471U (en) * | 2017-10-13 | 2018-06-29 | 国网上海市电力公司 | A kind of livewire work on-line monitoring system |
| CN111179530A (en) * | 2020-01-07 | 2020-05-19 | 国网河北省电力有限公司 | Live-line area isolation device for GIS equipment of transformer substation |
| CN111474530A (en) * | 2020-04-05 | 2020-07-31 | 武汉大云物移智科技有限公司 | Working distance measuring system based on laser radar platform and using method thereof |
| CN211720113U (en) * | 2020-05-14 | 2020-10-20 | 李军 | Movable electric insulation baffle |
| CN112134196A (en) * | 2020-09-01 | 2020-12-25 | 国网江苏省电力有限公司盐城供电分公司 | A insulator spindle for electric power overhauls |
| CN214754981U (en) * | 2021-01-19 | 2021-11-16 | 南京厚泰电气科技有限公司 | Inside self-adaptation adjusting device of intelligence cubical switchboard |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114122997A (en) | 2022-03-01 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108748073B (en) | Live overhaul operation robot for substation equipment | |
| CN114122997B (en) | Self-adaptive insulating isolation device and unilateral electrified overhaul method based on same | |
| CN108616076B (en) | Method for disassembling and assembling lightning arrester by live working robot | |
| US10873177B2 (en) | Circuit breaker racking system and method | |
| CN202561384U (en) | Camera lifting device | |
| CN106451224B (en) | A kind of hot line robot metal oxide arrester replacing options | |
| KR101545202B1 (en) | Disconnecting switch of gas insulation switching system | |
| CN107580171A (en) | Camera moves support | |
| CN213242217U (en) | Safety protection device of outdoor transformer | |
| CN110416894B (en) | Outdoor movable alternating current emergency power distribution device | |
| CN112003183B (en) | Power transmission network fault processing system and method | |
| CN110112675B (en) | Device for disassembling high-voltage wire T-shaped wire clamp in live-line operation | |
| CN212304369U (en) | High-low voltage distribution switch cabinet of distribution control equipment | |
| CN216030828U (en) | Distribution network live working robot system | |
| CN210201245U (en) | Outdoor mobile AC emergency power distribution device | |
| CN208797468U (en) | A kind of obstacle removing robot | |
| CN113612095A (en) | Grounding wire clamp installation robot | |
| CN112134196A (en) | A insulator spindle for electric power overhauls | |
| CN109950830A (en) | The provision for disengagement of hot line robot arrester and method | |
| CN221269233U (en) | High-altitude electrified cleaning platform | |
| Zhu et al. | Design of automatic robot with electrolytic wiring for isolating circuit breaker | |
| CN211981176U (en) | Rainproof type switch cabinet | |
| CN112909822B (en) | Unmanned aerial vehicle-assisted uninterrupted power supply operation system and method for power distribution network | |
| CN219611125U (en) | High-low voltage switch cabinet with early warning function | |
| CN218208875U (en) | Building energy-saving monitoring system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |