CN105119216A - High voltage wall bushing having crack monitoring device - Google Patents
High voltage wall bushing having crack monitoring device Download PDFInfo
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- CN105119216A CN105119216A CN201510537586.XA CN201510537586A CN105119216A CN 105119216 A CN105119216 A CN 105119216A CN 201510537586 A CN201510537586 A CN 201510537586A CN 105119216 A CN105119216 A CN 105119216A
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- conducting wire
- wall bushing
- voltage wall
- crackle
- porcelain piece
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Abstract
The invention discloses a high voltage wall bushing having a crack monitoring device. The high voltage wall bushing comprises an outer ceramic member which is internally provided with a circular through hole, an installation flange arranged on the outside of the outer ceramic member, a conducting bar arranged inside the circular through hole of the outer ceramic member, metal end caps and a crack monitoring device, wherein the mental end caps and the crack monitoring device are arranged on two ends of the outer ceramic member; the inner surface of the outer ceramic member is provided with a conductive circuit which is glued with the inner surface of the outer ceramic member; two ends of the conductive circuit are connected to a monitoring power supply through a lead; light devices for safety indication are connected in series on the lead; and the outer surface of the outer ceramic member is provided with plate-shaped heat radiation sheets. The high voltage wall bushing having the crack monitoring device realizes real-time monitoring on the cracks on the high voltage wall bushing, promptly and accurately finds out the high voltage wall bushing having the cracks, solves the problem that the damage of the ceramic member of the high voltage wall bushing is not easy to find, and greatly improves the safety and the reliability of the high voltage wall bushing.
Description
Technical field
The invention belongs to electric power system technical field, be specifically related to a kind of high-voltage wall bushing with crackle supervising device.
Background technology
High-voltage wall bushing is called again high pressure wall pipe, water string, wall pre-embedded pipe, on its three-phase alternating current system power station being applicable to rated voltage and frequency and electric substation's power distribution equipment, for current-carrying part through dividing plate, wall or other ground connection thing, play the use that insulation support is fixedly connected with between outer lead or bus.High-voltage wall bushing is made up of porcelain piece, metal-ware, mounting flange and busbar.Because air humidity is larger, it is ionized, the possibility that punctures is larger, so need the humidity controlling air in high-voltage wall bushing.Because porcelain piece belongs to fragile article, in transport, in installation and operation process, usually because the factors such as vibrations, collision cause porcelain piece to be destroyed, the pattern that porcelain piece is destroyed has multiple, common are cracked, crack.Wherein, cracked being easy to is observed and is found, crackle is not easily found, and is especially more not easily discovered in running.But after producing cracked and crackle, cause external impurities to enter in porcelain, particularly environmental liquids easily enters in porcelain, cause the charged or line short of high-voltage wall bushing, abnormally dangerous.
Summary of the invention
According to above the deficiencies in the prior art, technical problem to be solved by this invention proposes a kind of high-voltage wall bushing with crackle supervising device, by high-voltage wall bushing, the real-time monitoring of crackle supervising device realization to crackle on high-voltage wall bushing is set, find out the high-voltage wall bushing cracked timely and accurately, solve the destroyed rear ND hidden danger of high-voltage wall bushing porcelain piece, substantially increase the safety and reliability of high-voltage wall bushing.
In order to solve the problems of the technologies described above, the technical solution used in the present invention is: a kind of high-voltage wall bushing with crackle supervising device, this high-voltage wall bushing comprises the outer porcelain piece that inside is provided with manhole, be arranged on the mounting flange of outer porcelain piece outside, be arranged on the busbar in outer porcelain piece manhole, be arranged on metal end and the crackle supervising device at outer porcelain piece two ends, the inner surface of described outer porcelain piece is provided with a conducting wire, the inner surface of conducting wire and outer porcelain piece is sticked together, the two ends of described conducting wire are connected with monitoring power supply by wire, described wire is also in series with the light units representing safety, the appearance of described outer porcelain piece is provided with disk like fin.
Described conducting wire is made up of Copper Foil.Described conducting wire self non-intersect but cover outer porcelain piece inner surface more than 90% surface area.The arrangement of described conducting wire is on the inner surface of the axis spiral winding porcelain piece outside of outer porcelain piece.Described monitoring power supply is also provided with the wireless launcher and network transmission module of launching the signal whether conducting wire is communicated with.Described network transmission module is made up of wireless network, serial ports, Ethernet switch, fiber optic network, the data that wireless network transmissions reception wireless launcher sends are connected with Ethernet switch by serial ports, Ethernet switch is connected with fiber optic network, serial ports turns Ethernet switch and is responsible for connecting fiber net and radio sensing network, by optical networking, transfer data to dispatcher.The outer surface of described conducting wire is provided with insulation layer; The width of described conducting wire is less than 1 millimeter.Described conducting wire is also provided with the open circuit range-measuring circuit of the particular location residing for trip point of open circuit in decision circuitry, described open circuit range-measuring circuit comprises burn out detection unit and range cells, range cells comprises the second source with monitoring power supply reverse parallel connection, a diode reverse with monitoring power supply positive pole and a resistance of connecting with diode cathode, second source positive pole is connected in series a K switch, K switch is in off-state, one end of switch is the input A of range cells, control centre in burn out detection unit connects range cells by K switch, the positive pole of diode and the one end of resistance principle diode of connecting with diode cathode are connected with the two ends of conducting wire respectively.Described burn out detection unit comprises control centre, triode Q, resistance and diode, the base stage of triode Q connects the output of range cells through resistance, diode, the emitter of Q connects public terminal GND, collector electrode connects power Vcc through resistance, and draws the output of burn out detection unit through collector electrode.The method of work of described open circuit range-measuring circuit is: step one: when conducting wire, the wire be connected with the two ends of conducting wire and monitoring power supply normally work, monitoring power supply works, current signal exports to burn out detection unit simultaneously, triode is in magnifying state, the output end current of burn out detection unit is exaggerated, output to control centre, control centre, according to Comparative result, can draw the normal conclusion of cable, step 2: conducting wire, when the wire be connected with the two ends of conducting wire or any one open circuit of monitoring power supply three, triode is in cut-off operating state, the output end current of burn out detection unit is almost nil, control centre can send a signal to K switch, K switch closes, second source is that remaining range cells continues powered operation, now, diode and corresponding series resistance are also in the loop, control centre is by measuring circuit resistance sizes, so control centre can calculate rapidly accident point position, namely be on conducting wire or on the wire be connected with the two ends of conducting wire and monitoring power supply, if step 3 breakpoint is not on conducting wire, the heart can be closed light warning signal and be sent concrete off position information by wireless launcher to dispatcher in the controlling, if step 4 breakpoint is on conducting wire, the heart sends the information that high-voltage wall bushing cracks to dispatcher by wireless launcher in the controlling.
Beneficial effect of the present invention is: the present invention arranges the real-time monitoring of crackle supervising device realization to crackle on high-voltage wall bushing by high-voltage wall bushing, find out the high-voltage wall bushing cracked timely and accurately, solve the destroyed rear ND hidden danger of high-voltage wall bushing porcelain piece, substantially increase the safety and reliability of high-voltage wall bushing.
Accompanying drawing explanation
Below the content expressed by this Figure of description and the mark in figure are briefly described:
Fig. 1 is the structure chart of the specific embodiment of the present invention with the high-voltage wall bushing of crackle supervising device.
Fig. 2 is the crackle positioning principle figure of the specific embodiment of the present invention with crackle supervising device.
In figure, 1 is outer porcelain piece, and 2 is busbar, and 3 is metal end, and 4 is mounting flange.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the specific embodiment of the present invention is as the effect of the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part and operation principle, manufacturing process and operation using method etc., be described in further detail, have more complete, accurate and deep understanding to help those skilled in the art to inventive concept of the present invention, technical scheme.
As shown in Figure 1, a kind of high-voltage wall bushing with crackle supervising device, this high-voltage wall bushing comprises outer porcelain piece 1, busbar 2, metal end 3, mounting flange 4 and crackle supervising device.
The appearance of described outer porcelain piece 1 is provided with disk like fin, and outer porcelain piece 1 is also provided with manhole.In order to monitor the crackle of outer porcelain piece 1 inner surface, the inner surface of described outer porcelain piece 1 is provided with the conducting wire be made up of Copper Foil, described conducting wire self non-intersect but cover outer porcelain piece 1 inner surface more than 90% surface area.In order to cover the inner surface of outer porcelain piece 1 better and reduce the total length of conducting wire, the arrangement of described conducting wire is on the inner surface of the axis spiral winding porcelain piece 1 outside of outer porcelain piece 1.The inner surface of described conducting wire and outer porcelain piece 1 is sticked together, and when the inner surface of outer porcelain piece 1 cracks, conducting wire will be pulled off, and causes line broken circuit.The two ends of described conducting wire are connected with monitoring power supply by wire, described wire is also in series with the light units representing safety, light units runs well and illustrates that conducting wire is communicated with, if light units is not bright, line broken circuit is described, represents that outer porcelain piece 1 inner surface cracks.Staff and replaceable outer porcelain piece 1.
Being only the attention that light warning may can not cause staff, in order to increase the validity of warning, described monitoring power supply being also provided with wireless launcher and network transmission module, wireless launcher launches the signal whether conducting wire is communicated with.Described network transmission module is made up of wireless network, serial ports, Ethernet switch, fiber optic network, the data that wireless network transmissions reception wireless launcher sends are connected with Ethernet switch by serial ports, Ethernet switch is connected with fiber optic network, serial ports turns Ethernet switch and is responsible for connecting fiber net and radio sensing network, by optical networking, transfer data to dispatcher.
Cause line fault to prevent from mutually directly contacting between conducting wire self and prevent conducting wire from being punctured easily by the voltage on busbar 2, the outer surface of described conducting wire is provided with insulation layer.In order to monitor less crackle, the width of described conducting wire is less than 1 millimeter.
Light units and wireless launcher false alarm is caused in order to prevent the wire fracture owing to being connected with the two ends of conducting wire or monitoring power supply fault, described conducting wire is also provided with open circuit range-measuring circuit, and described open circuit range-measuring circuit can the particular location residing for trip point of open circuit in decision circuitry.Described open circuit range-measuring circuit comprises burn out detection unit and range cells, range cells comprises and the second source of monitoring power supply reverse parallel connection, a diode reverse with monitoring power supply positive pole and a resistance of connecting with diode cathode, second source positive pole is connected in series a K switch, K switch is in off-state, one end of switch is the input A of range cells, and the control centre in burn out detection unit connects range cells by K switch.The positive pole of diode and the one end of resistance principle diode of connecting with diode cathode are connected with the two ends of conducting wire respectively.
Described burn out detection unit comprises control centre, triode Q, resistance and diode, the base stage of triode Q connects the output of range cells through resistance, diode, the emitter of Q connects public terminal GND, collector electrode connects power Vcc through resistance, and draws the output of burn out detection unit through collector electrode.
When conducting wire, the wire be connected with the two ends of conducting wire and monitoring power supply normally work, monitoring power supply works, current signal exports to burn out detection unit simultaneously, triode is in magnifying state, the output end current of burn out detection unit is exaggerated, output to control centre, control centre, according to Comparative result, can draw the normal conclusion of cable.Conducting wire, when the wire be connected with the two ends of conducting wire or any one open circuit of monitoring power supply three, triode is in cut-off operating state, the output end current of burn out detection unit is almost nil, control centre can send a signal to K switch, K switch closes, second source is that remaining range cells continues powered operation, now, diode and corresponding series resistance are also in the loop, control centre is by measuring circuit resistance sizes, so control centre can calculate rapidly accident point position, namely be on conducting wire or on the wire be connected with the two ends of conducting wire and monitoring power supply.If not in conducting wire, the heart can be closed light warning signal and be sent concrete off position information by wireless launcher to dispatcher in the controlling.If breakpoint is on conducting wire, the heart sends the information that high-voltage wall bushing cracks to dispatcher by wireless launcher in the controlling.
Above by reference to the accompanying drawings to invention has been exemplary description; obvious specific implementation of the present invention is not subject to the restrictions described above; as long as have employed the improvement of the various unsubstantialities that method of the present invention is conceived and technical scheme is carried out; or design of the present invention and technical scheme directly applied to other occasion, all within protection scope of the present invention without to improve.The protection range that protection scope of the present invention should limit with claims is as the criterion.
Claims (10)
1. the high-voltage wall bushing with crackle supervising device, it is characterized in that: this high-voltage wall bushing comprises the outer porcelain piece (1) that inside is provided with manhole, be arranged on the mounting flange (4) that outer porcelain piece (1) is outside, be arranged on the busbar (2) in outer porcelain piece (1) manhole, be arranged on metal end (3) and the crackle supervising device at outer porcelain piece (1) two ends, the inner surface of described outer porcelain piece (1) is provided with a conducting wire, the inner surface of conducting wire and outer porcelain piece (1) is sticked together, the two ends of described conducting wire are connected with monitoring power supply by wire, described wire is also in series with the light units representing safety, the appearance of described outer porcelain piece (1) is provided with disk like fin.
2. according to claim 1 with the high-voltage wall bushing of crackle supervising device, it is characterized in that: described conducting wire is made up of Copper Foil.
3., according to claim 2 with the high-voltage wall bushing of crackle supervising device, it is characterized in that: described conducting wire self non-intersect but cover outer porcelain piece (1) inner surface more than 90% surface area.
4. according to claim 2 with the high-voltage wall bushing of crackle supervising device, it is characterized in that: the arrangement of described conducting wire is on the inner surface of the axis spiral winding porcelain piece (1) outside of outer porcelain piece (1).
5. according to claim 1 with the high-voltage wall bushing of crackle supervising device, it is characterized in that: described monitoring power supply is also provided with the wireless launcher and network transmission module of launching the signal whether conducting wire is communicated with.
6. according to claim 6 with the high-voltage wall bushing of crackle supervising device, it is characterized in that: described network transmission module is made up of wireless network, serial ports, Ethernet switch, fiber optic network, the data that wireless network transmissions reception wireless launcher sends are connected with Ethernet switch by serial ports, Ethernet switch is connected with fiber optic network, serial ports turns Ethernet switch and is responsible for connecting fiber net and radio sensing network, by optical networking, transfer data to dispatcher.
7. according to claim 1-6 any one with the high-voltage wall bushing of crackle supervising device, it is characterized in that: the outer surface of described conducting wire is provided with insulation layer; The width of described conducting wire is less than 1 millimeter.
8. according to claim 1-6 any one with the high-voltage wall bushing of crackle supervising device, it is characterized in that: the open circuit range-measuring circuit described conducting wire being also provided with the particular location residing for trip point of open circuit in decision circuitry, described open circuit range-measuring circuit comprises burn out detection unit and range cells, range cells comprises the second source with monitoring power supply reverse parallel connection, a diode reverse with monitoring power supply positive pole and a resistance of connecting with diode cathode, second source positive pole is connected in series a K switch, K switch is in off-state, one end of switch is the input A of range cells, control centre in burn out detection unit connects range cells by K switch, the positive pole of diode and the one end of resistance principle diode of connecting with diode cathode are connected with the two ends of conducting wire respectively.
9. according to claim 8 with the high-voltage wall bushing of crackle supervising device, it is characterized in that: described burn out detection unit comprises control centre, triode Q, resistance and diode, the base stage of triode Q connects the output of range cells through resistance, diode, the emitter of Q connects public terminal GND, collector electrode connects power Vcc through resistance, and draws the output of burn out detection unit through collector electrode.
10. according to claim 9 with the high-voltage wall bushing of crackle supervising device, it is characterized in that: the method for work of described open circuit range-measuring circuit is: step one: when conducting wire, the wire be connected with the two ends of conducting wire and monitoring power supply normally work, monitoring power supply works, current signal exports to burn out detection unit simultaneously, triode is in magnifying state, the output end current of burn out detection unit is exaggerated, output to control centre, control centre, according to Comparative result, can draw the normal conclusion of cable, step 2: conducting wire, when the wire be connected with the two ends of conducting wire or any one open circuit of monitoring power supply three, triode is in cut-off operating state, the output end current of burn out detection unit is almost nil, control centre can send a signal to K switch, K switch closes, second source is that remaining range cells continues powered operation, now, diode and corresponding series resistance are also in the loop, control centre is by measuring circuit resistance sizes, so control centre can calculate rapidly accident point position, namely be on conducting wire or on the wire be connected with the two ends of conducting wire and monitoring power supply, if step 3 breakpoint is not on conducting wire, the heart can be closed light warning signal and be sent concrete off position information by wireless launcher to dispatcher in the controlling, if step 4 breakpoint is on conducting wire, the heart sends the information that high-voltage wall bushing cracks to dispatcher by wireless launcher in the controlling.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510537586.XA CN105119216A (en) | 2015-08-26 | 2015-08-26 | High voltage wall bushing having crack monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510537586.XA CN105119216A (en) | 2015-08-26 | 2015-08-26 | High voltage wall bushing having crack monitoring device |
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| CN201510537586.XA Pending CN105119216A (en) | 2015-08-26 | 2015-08-26 | High voltage wall bushing having crack monitoring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767475A (en) * | 2016-11-18 | 2017-05-31 | 北京航空航天大学 | A kind of hole-edge crack diagnostic method that fiber grating spectral image analysis are pasted based on horizontal cloth |
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| CN2213389Y (en) * | 1994-12-07 | 1995-11-22 | 双鸭山市电瓷电器厂 | Full-working-condition type high-voltage wall bushing |
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| WO2009083699A1 (en) * | 2008-01-03 | 2009-07-09 | European Aeronautic Defence And Space Company Eads France | Aircraft structure test device of the wire cutter type |
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| CN103944970A (en) * | 2014-04-01 | 2014-07-23 | 上海交通大学 | Remote monitoring system and method for fatigue cracks of orthotropic steel bridge deck slab |
| CN104700527A (en) * | 2014-08-28 | 2015-06-10 | 安徽工程大学 | Cable anti-theft device and method thereof |
| CN105162063A (en) * | 2015-08-26 | 2015-12-16 | 芜湖市凯鑫避雷器有限责任公司 | High-voltage wall bushing with crack monitoring devices |
-
2015
- 2015-08-26 CN CN201510537586.XA patent/CN105119216A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2213389Y (en) * | 1994-12-07 | 1995-11-22 | 双鸭山市电瓷电器厂 | Full-working-condition type high-voltage wall bushing |
| WO2009083699A1 (en) * | 2008-01-03 | 2009-07-09 | European Aeronautic Defence And Space Company Eads France | Aircraft structure test device of the wire cutter type |
| CN101299032A (en) * | 2008-06-06 | 2008-11-05 | 重庆交通大学 | Structural crack bionic monitoring system and monitoring method thereof |
| CN101716407A (en) * | 2009-12-28 | 2010-06-02 | 侯珏 | Method for detecting anti-explosion alarming function of fire control pressure steel cylinder |
| CN103412007A (en) * | 2013-01-10 | 2013-11-27 | 哈尔滨飞机工业集团有限责任公司 | Method for monitoring fatigue crack |
| CN103944970A (en) * | 2014-04-01 | 2014-07-23 | 上海交通大学 | Remote monitoring system and method for fatigue cracks of orthotropic steel bridge deck slab |
| CN104700527A (en) * | 2014-08-28 | 2015-06-10 | 安徽工程大学 | Cable anti-theft device and method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106767475A (en) * | 2016-11-18 | 2017-05-31 | 北京航空航天大学 | A kind of hole-edge crack diagnostic method that fiber grating spectral image analysis are pasted based on horizontal cloth |
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Application publication date: 20151202 |
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