CN105655052A - High-voltage transmission power cable system - Google Patents
High-voltage transmission power cable system Download PDFInfo
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- CN105655052A CN105655052A CN201610204751.4A CN201610204751A CN105655052A CN 105655052 A CN105655052 A CN 105655052A CN 201610204751 A CN201610204751 A CN 201610204751A CN 105655052 A CN105655052 A CN 105655052A
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- conductor
- switch
- point detection
- detection unit
- breaking point
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B9/00—Power cables
- H01B9/02—Power cables with screens or conductive layers, e.g. for avoiding large potential gradients
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/02—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors mainly consisting of metals or alloys
- H01B1/023—Alloys based on aluminium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/17—Protection against damage caused by external factors, e.g. sheaths or armouring
- H01B7/18—Protection against damage caused by wear, mechanical force or pressure; Sheaths; Armouring
- H01B7/184—Sheaths comprising grooves, ribs or other projections
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B7/00—Insulated conductors or cables characterised by their form
- H01B7/32—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks
- H01B7/328—Insulated conductors or cables characterised by their form with arrangements for indicating defects, e.g. breaks or leaks comprising violation sensing means
Abstract
The invention discloses a high-voltage transmission power cable system. The system comprises three conductors, conductor shielding layers, insulating layers and a protecting layer, wherein the conductor shielding layers are arranged outside the conductors, the insulating layers are arranged outside the conductor shielding layers, and the conductors, the conductor shielding layers and the insulating layers are arranged in the protecting layer; the high-voltage transmission power cable system further comprises a cylindrical fixing device, and three circular arc grooves are formed in the side surface of the cylindrical fixing device at equal intervals; one conductor is arranged in each circular arc groove; a cavity defined by the conductors, the cylindrical fixing device and the protecting layer is filled with insulating filler; the system further comprises a far-end open circuit contact detecting unit and N terminal open circuit contact detecting units; the N terminal open circuit contact detecting units are arranged on a high-voltage transmission power cable line at equal intervals, and N is larger than or equal to 2. The power cable cannot have the problem of short circuit caused by friction, and an open circuit contact can be rapidly judged once circuit break happens to the power cable.
Description
The application is the applying date is on November 03rd, 2014, and application number is 201410610596.7, and denomination of invention is point case application of the patent application of " a kind of high pressure transmission of electricity power cable system ".
Technical field
The present invention relates to high pressure technical field of electric power transmission, it is specifically related to a kind of high pressure transmission of electricity power cable system.
Background technology
Along with the fast development of national economy, the consumption of power cable and use range as national economy aorta are increasing. Power cable is the cable for transmitting and distribute electric energy. Be usually used in underground, city electrical network, the lead line in power house, the inside of industrial and mining enterprises powers and crosses the submarine transmission line in river, excessively sea. In electric power circuit, the proportion shared by power cable increases just gradually. Power cable is in order to the cable product of transmission and distribution high-power power in the trunk circuit of power system, comprising 1-500KV and above various voltage range, and the power cable of various insulation.
The basic structure of power cable is made up of core (conductor), insulation layer, screen layer and protective layer four part. Core is the conduction part of power cable, is used for transmission of electric energy, is the major portion of power cable. Insulation layer is isolated from each other between core and the earth and out of phase core on electrically, ensures electric energy conveying, is integral part indispensable in power cable structure. Screen layer, because the current ratio that electric power cable passes through is relatively big, can produce magnetic field around electric current, in order to not affect other element, and can be electromagnetic-field-shielded in cable this kind so adding screen layer. The effect of protective layer protects power cable from the intrusion of extraneous impurity and moisture, and prevents external force from directly damaging power cable.
It is exactly A phase, B phase, C phase wire is all cylindrical that existing three-phase electrical cable exists a very big defect, and easy sliding friction between so each phase, the time is of a specified duration, it is easy to short circuit between each phase occur.
Three-phase electrical cable also has a problem to be exactly, once there is open circuit problem, be very difficult to search open circuit point, thus can cause long-time large-area power-cuts phenomenon.
The core of existing power cable generally adopts aluminum alloy materials to prepare, and the hardness of aluminum alloy materials is not high enough, so just adding other composition in aluminum alloy materials so that hardness improves, but resistivity can be caused significantly to rise.
Summary of the invention
, easily there is the phenomenon of sliding friction in the technical problem to be solved in the present invention: the first between the A phase of existing three-phase electrical cable, B phase, C phase, the time, of a specified duration having ground away once insulation layer just there will be short circuit; 2nd, power cable once there is open circuit problem, is very difficult to search open circuit point, thus can cause long-time large-area power-cuts phenomenon.
3rd, the core of existing power cable generally adopts aluminum alloy materials to prepare, and the hardness of aluminum alloy materials is not high enough, so just adding other composition in aluminum alloy materials so that hardness improves, but resistivity can be caused significantly to rise.
In order to solve above technical problem, the technical scheme of the present invention is as follows:
A kind of high pressure transmission of electricity power cable system, comprises 3 conductors, conductor shield, insulation layer, protective layers; Conductor shield is arranged on the outside of conductor, and insulation layer is arranged on the outside of conductor shield, and conductor, conductor shield, insulation layer are arranged in protective layer; It is characterized in that, also comprise cylindrical fixture; The side spaced set of described cylindrical fixture has 3 circular grooves; 1 conductor it is provided with in each circular groove; The cavity formed between described conductor, cylindrical fixture, protective layer fills insulation filler;
Also comprise far-end breaking point detection unit, N number of terminal breaking point detection unit; Described N number of terminal breaking point detection unit spaced set is transmitted electricity on power cable line in high pressure; N >=2 and N are even number;
Wherein, N number of terminal breaking point detection unit is from left end to right-hand member successively called after: the 1st terminal breaking point detection unit, the i-th terminal breaking point detection unit, N terminal breaking point detection unit; 1��i��N;
Described far-end breaking point detection unit comprises master controller unit, total wireless communication unit, keyboard unit, display unit; Total wireless communication unit, keyboard unit, display unit respectively I/O port with master controller unit be connected;
Described terminal breaking point detection unit comprises 3 conductiving metal strips, the first switch, the 2nd switch, the 3rd switch, controller unit, wireless communication unit;
Wherein, 3 conductor called afters: the first conductor, the 2nd conductor, the 3rd conductor; 3 conductiving metal strip called afters: the first conductiving metal strip, the 2nd conductiving metal strip, the 3rd conductiving metal strip;
First conductiving metal strip is through conductor shield, insulation layer, protective layer, and one end of the first conductiving metal strip is electrically connected the first conductor, and the other end is positioned at the outside of protective layer and is electrically connected one end of the first switch and one end of the 2nd switch simultaneously;
2nd conductiving metal strip is electrically connected the 2nd conductor through conductor shield, insulation layer, protective layer, one end of the 2nd conductiving metal strip, and the other end is positioned at the outside of protective layer and is electrically connected the other end of the first switch and one end of the 3rd switch simultaneously;
3rd conductiving metal strip is electrically connected the 3rd conductor through conductor shield, insulation layer, protective layer, one end of the 3rd conductiving metal strip, and the other end is positioned at the outside of protective layer and is electrically connected the other end of the 2nd switch and the other end of the 3rd switch simultaneously;
The outside surface of described the first conductiving metal strip, the 2nd conductiving metal strip, the 3rd conductiving metal strip is provided with insulation layer;
First switch, the 2nd switch, the 3rd switch are all containing control end, and the control end of the first switch, the 2nd switch, the 3rd switch is connected with the I/O port of controller unit respectively;
Controller unit and master controller unit communication.
Wherein, described conductor adopts aluminum alloy materials to be prepared from, and the weight proportion of this aluminum alloy materials is as follows: aluminium: 1000 parts; Erbium: 7-10 part; Titanium: 3-6 part;
After preparing aluminium alloy stock according to above-mentioned weight proportion, first, smelting temperature is 800 DEG C, and through stirring, Perchlorobenzene refinery by de-gassing, it may also be useful to continuous caster continuous casting, continuous casting becomes the aluminium alloy cast ingot of �� 120mm;
Then, adopt extrusion machine to make the aluminium alloy rod of �� 30mm 420 DEG C of hot extrusions;
Subsequently, the anneal of 50 hours is carried out at 420 DEG C;
Finally, adopt drawing machine by the drawing of 8 times, it is prepared into the aluminium erbium titanium alloy wire of �� 4mm.
Technical scheme more preferably, described total wireless communication unit, wireless communication unit all adopt gprs communication module.
Technical scheme more preferably, described display unit adopts numeral method.
Technical scheme more preferably, described master controller unit and controller unit all adopt MSP430 micro-chip.
Technical scheme more preferably, described the first switch, the 2nd switch, the 3rd switch all adopt rly..
Technical scheme more preferably, described the first switch, the 2nd switch, the 3rd switch all adopt controlled thyristor.
Compared with prior art, the useful effect of the present invention: the first, the power cable A phase of the present invention, B phase, C fix firmly, do not contact each other, there will not be the phenomenon of sliding friction, therefore there will not be the short circuit problem rubbing and causing; 2nd, power cable is once there is open circuit problem, it is possible to judge open circuit point very soon, solves because the long-time large-area power-cuts problem that causes of power cable breaking.
3rd, the core conductor of the power cable of the present invention adopts aluminum alloy materials preparation, and while hardness improves, resistivity reduces on the contrary.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention.
Wherein, 1 is conductor, and 2 is conductor shield, and 3 is insulation layer, and 4 is cylindrical fixture, 5 protective layers.
Fig. 2 is the connection diagram of switch sections of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1: a kind of high pressure transmission of electricity power cable system, comprises 3 conductors, conductor shield, insulation layer, protective layers; Conductor shield is arranged on the outside of conductor, and insulation layer is arranged on the outside of conductor shield, and conductor, conductor shield, insulation layer are arranged in protective layer; Also comprise cylindrical fixture; The side spaced set of described cylindrical fixture has 3 circular grooves; 1 conductor it is provided with in each circular groove; The cavity formed between described conductor, cylindrical fixture, protective layer fills insulation filler; Also comprise far-end breaking point detection unit, 4 terminal breaking point detection unit; 4 described terminal breaking point detection unit spaced sets are transmitted electricity on power cable line in high pressure;
Wherein, 4 terminal breaking point detection unit are from left end to right-hand member successively called after: the 1st terminal breaking point detection unit, the 2nd terminal breaking point detection unit, the 3rd terminal breaking point detection unit, the 4th terminal breaking point detection unit;
Described far-end breaking point detection unit comprises master controller unit, total wireless communication unit, keyboard unit, display unit; Total wireless communication unit, keyboard unit, display unit respectively I/O port with master controller unit be connected;
Described terminal breaking point detection unit comprises 3 conductiving metal strips, the first switch, the 2nd switch, the 3rd switch, controller unit, wireless communication unit;
Wherein, 3 conductor called afters: the first conductor, the 2nd conductor, the 3rd conductor; 3 conductiving metal strip called afters: the first conductiving metal strip, the 2nd conductiving metal strip, the 3rd conductiving metal strip;
First conductiving metal strip is through conductor shield, insulation layer, protective layer, and one end of the first conductiving metal strip is electrically connected the first conductor, and the other end is positioned at the outside of protective layer and is electrically connected one end of the first switch and one end of the 2nd switch simultaneously;
2nd conductiving metal strip is electrically connected the 2nd conductor through conductor shield, insulation layer, protective layer, one end of the 2nd conductiving metal strip, and the other end is positioned at the outside of protective layer and is electrically connected the other end of the first switch and one end of the 3rd switch simultaneously;
3rd conductiving metal strip is electrically connected the 3rd conductor through conductor shield, insulation layer, protective layer, one end of the 3rd conductiving metal strip, and the other end is positioned at the outside of protective layer and is electrically connected the other end of the 2nd switch and the other end of the 3rd switch simultaneously;
The outside surface of described the first conductiving metal strip, the 2nd conductiving metal strip, the 3rd conductiving metal strip is provided with insulation layer;
First switch, the 2nd switch, the 3rd switch are all containing control end, and the control end of the first switch, the 2nd switch, the 3rd switch is connected with the I/O port of controller unit respectively;
Controller unit and master controller unit communication.
Wherein, described total wireless communication unit, wireless communication unit all adopt gprs communication module; Display unit adopts numeral method; Master controller unit and controller unit all adopt MSP430 micro-chip. First switch, the 2nd switch, the 3rd switch all adopt rly..
Wherein, described conductor adopts aluminum alloy materials to be prepared from, and the weight proportion of this aluminum alloy materials is as follows: aluminium: 1000 parts; Erbium: 7 parts; Titanium: 3 parts;
After preparing aluminium alloy stock according to above-mentioned weight proportion, first, smelting temperature is 800 DEG C, and through stirring, Perchlorobenzene refinery by de-gassing, it may also be useful to continuous caster continuous casting, continuous casting becomes the aluminium alloy cast ingot of �� 120mm;
Then, adopt extrusion machine to make the aluminium alloy rod of �� 30mm 420 DEG C of hot extrusions;
Subsequently, the anneal of 50 hours is carried out at 420 DEG C;
Finally, adopt drawing machine by the drawing of 8 times, it is prepared into the aluminium erbium titanium alloy wire of �� 4mm.
Embodiment 2:
On the basis of embodiment 1, the first switch, the 2nd switch, the 3rd switch all adopt controlled thyristor.
Wherein, described conductor adopts aluminum alloy materials to be prepared from, and the weight proportion of this aluminum alloy materials is as follows: aluminium: 1000 parts; Erbium: 8 parts; Titanium: 4 parts;
After preparing aluminium alloy stock according to above-mentioned weight proportion, first, smelting temperature is 800 DEG C, and through stirring, Perchlorobenzene refinery by de-gassing, it may also be useful to continuous caster continuous casting, continuous casting becomes the aluminium alloy cast ingot of �� 120mm;
Then, adopt extrusion machine to make the aluminium alloy rod of �� 30mm 420 DEG C of hot extrusions;
Subsequently, the anneal of 50 hours is carried out at 420 DEG C;
Finally, adopt drawing machine by the drawing of 8 times, it is prepared into the aluminium erbium titanium alloy wire of �� 4mm.
Embodiment 3:
Other is completely the same with embodiment 1, and wherein, described conductor adopts aluminum alloy materials to be prepared from, and the weight proportion of this aluminum alloy materials is as follows:
Aluminium: 1000 parts; Erbium: 9 parts; Titanium: 5 parts;
After preparing aluminium alloy stock according to above-mentioned weight proportion, first, smelting temperature is 800 DEG C, and through stirring, Perchlorobenzene refinery by de-gassing, it may also be useful to continuous caster continuous casting, continuous casting becomes the aluminium alloy cast ingot of �� 120mm;
Then, adopt extrusion machine to make the aluminium alloy rod of �� 30mm 420 DEG C of hot extrusions;
Subsequently, the anneal of 50 hours is carried out at 420 DEG C;
Finally, adopt drawing machine by the drawing of 8 times, it is prepared into the aluminium erbium titanium alloy wire of �� 4mm.
Embodiment 4:
Other is completely the same with embodiment 1, and wherein, described conductor adopts aluminum alloy materials to be prepared from, and the weight proportion of this aluminum alloy materials is as follows:
Aluminium: 1000 parts; Erbium: 10 parts; Titanium: 6 parts;
After preparing aluminium alloy stock according to above-mentioned weight proportion, first, smelting temperature is 800 DEG C, and through stirring, Perchlorobenzene refinery by de-gassing, it may also be useful to continuous caster continuous casting, continuous casting becomes the aluminium alloy cast ingot of �� 120mm;
Then, adopt extrusion machine to make the aluminium alloy rod of �� 30mm 420 DEG C of hot extrusions;
Subsequently, the anneal of 50 hours is carried out at 420 DEG C;
Finally, adopt drawing machine by the drawing of 8 times, it is prepared into the aluminium erbium titanium alloy wire of �� 4mm.
In above 4 embodiments, the changing value of resistivity and hardness is as shown in table 1:
Table 1:
Can finding that the aluminium alloy conductor hardness of the present invention obviously promotes by above table 1, resistivity reduces on the contrary, so the power cable conductor performance that the aluminium alloy conductor of the present invention is made obviously promotes.
Adopt the method for invention power cable system searching open circuit point as follows:
1, transmitted electricity by the high pressure successively end of the first conductor of power cable left end and the 2nd conductor, the first conductor and the 3rd conductor, the 2nd conductor and the 3rd conductor applies 120V volts DS, a series connection DC ammeter in circuit simultaneously;
2, control master controller unit by keyboard unit to close and ON-and OFF-command to the controller transmit button of N/2 terminal breaking point detection unit; When 120V volts DS is applied to the end of the first conductor and the 2nd conductor, closed first switch of controller control of N/2 terminal breaking point detection unit, interval control in 10 seconds disconnects the first switch; When 120V volts DS is applied to the end of the first conductor and the 3rd conductor, closed 2nd switch of controller control of N/2 terminal breaking point detection unit, interval control in 10 seconds disconnects the 2nd switch; When 120V volts DS is applied to the end of the 2nd conductor and the 3rd conductor, closed 3rd switch of controller control of N/2 terminal breaking point detection unit, interval control in 10 seconds disconnects the 3rd switch;
If 3 DC ammeter have reading entirely, the right side of open circuit o'clock at N/2 terminal breaking point detection unit is described; If DC ammeter is not entirely have reading, the left side of open circuit o'clock at N/2 terminal breaking point detection unit is described;
If 4 open circuits o'clock are on the right side of N/2 terminal breaking point detection unit, then control master controller unit by keyboard unit and close and ON-and OFF-command to the controller transmit button of N/2+1 terminal breaking point detection unit; When 120V volts DS is applied to the end of the first conductor and the 2nd conductor, closed first switch of controller control of N/2+1 terminal breaking point detection unit, interval control in 10 seconds disconnects the first switch; When 120V volts DS is applied to the end of the first conductor and the 3rd conductor, closed 2nd switch of controller control of N/2+1 terminal breaking point detection unit, interval control in 10 seconds disconnects the 2nd switch; When 120V volts DS is applied to the end of the 2nd conductor and the 3rd conductor, closed 3rd switch of controller control of N/2+1 terminal breaking point detection unit, interval control in 10 seconds disconnects the 3rd switch;
If open circuit o'clock is in the left side of N/2 terminal breaking point detection unit, then controls master controller unit by keyboard unit and close and ON-and OFF-command to the controller transmit button of N/2-1 terminal breaking point detection unit; When 120V volts DS is applied to the end of the first conductor and the 2nd conductor, closed first switch of controller control of N/2-1 terminal breaking point detection unit, interval control in 10 seconds disconnects the first switch; When 120V volts DS is applied to the end of the first conductor and the 3rd conductor, closed 2nd switch of controller control of N/2-1 terminal breaking point detection unit, interval control in 10 seconds disconnects the 2nd switch; When 120V volts DS is applied to the end of the 2nd conductor and the 3rd conductor, closed 3rd switch of controller control of N/2-1 terminal breaking point detection unit, interval control in 10 seconds disconnects the 3rd switch;
5, according to step 3) with step 4) method, until finding the position of open circuit point;
If when 6 first switches and the 2nd switch are closed, DC ammeter does not all have reading, illustrates that open circuit o'clock is at the first conductor; If when the first switch and the 3rd switch are closed, DC ammeter does not all have reading, illustrates that open circuit o'clock is at the 2nd conductor; If when the 2nd switch and the 3rd switch are closed, DC ammeter does not all have reading, illustrates that open circuit o'clock is at the 3rd conductor, thus finds out which root conductor open circuit point is positioned at.
Claims (2)
1. a high pressure transmission of electricity power cable system, comprises 3 conductors, conductor shield, insulation layer, protective layers; Conductor shield is arranged on the outside of conductor, and insulation layer is arranged on the outside of conductor shield, and conductor, conductor shield, insulation layer are arranged in protective layer; It is characterized in that, also comprise cylindrical fixture; The side spaced set of described cylindrical fixture has 3 circular grooves; 1 conductor it is provided with in each circular groove; The cavity formed between described conductor, cylindrical fixture, protective layer fills insulation filler;
Also comprise far-end breaking point detection unit, N number of terminal breaking point detection unit; Described N number of terminal breaking point detection unit spaced set is transmitted electricity on power cable line in high pressure; N >=2 and N are even number;
Wherein, N number of terminal breaking point detection unit is from left end to right-hand member successively called after: the 1st terminal breaking point detection unit, the i-th terminal breaking point detection unit, N terminal breaking point detection unit; 1��i��N;
Described far-end breaking point detection unit comprises master controller unit, total wireless communication unit, keyboard unit, display unit; Total wireless communication unit, keyboard unit, display unit respectively I/O port with master controller unit be connected;
Described terminal breaking point detection unit comprises 3 conductiving metal strips, the first switch, the 2nd switch, the 3rd switch, controller unit, wireless communication unit;
Wherein, 3 conductor called afters: the first conductor, the 2nd conductor, the 3rd conductor; 3 conductiving metal strip called afters: the first conductiving metal strip, the 2nd conductiving metal strip, the 3rd conductiving metal strip;
First conductiving metal strip is through conductor shield, insulation layer, protective layer, and one end of the first conductiving metal strip is electrically connected the first conductor, and the other end is positioned at the outside of protective layer and is electrically connected one end of the first switch and one end of the 2nd switch simultaneously;
2nd conductiving metal strip is electrically connected the 2nd conductor through conductor shield, insulation layer, protective layer, one end of the 2nd conductiving metal strip, and the other end is positioned at the outside of protective layer and is electrically connected the other end of the first switch and one end of the 3rd switch simultaneously;
3rd conductiving metal strip is electrically connected the 3rd conductor through conductor shield, insulation layer, protective layer, one end of the 3rd conductiving metal strip, and the other end is positioned at the outside of protective layer and is electrically connected the other end of the 2nd switch and the other end of the 3rd switch simultaneously;
The outside surface of described the first conductiving metal strip, the 2nd conductiving metal strip, the 3rd conductiving metal strip is provided with insulation layer;
First switch, the 2nd switch, the 3rd switch are all containing control end, and the control end of the first switch, the 2nd switch, the 3rd switch is connected with the I/O port of controller unit respectively;
Controller unit and master controller unit communication;
Wherein, described conductor adopts aluminum alloy materials to be prepared from, and the weight proportion of this aluminum alloy materials is as follows:
Aluminium: 1000 parts; Erbium: 10 parts; Titanium: 6 parts;
After preparing aluminium alloy stock according to above-mentioned weight proportion, first, smelting temperature is 800 DEG C, and through stirring, Perchlorobenzene refinery by de-gassing, it may also be useful to continuous caster continuous casting, continuous casting becomes the aluminium alloy cast ingot of �� 120mm;
Then, adopt extrusion machine to make the aluminium alloy rod of �� 30mm 420 DEG C of hot extrusions;
Subsequently, the anneal of 50 hours is carried out at 420 DEG C;
Finally, adopt drawing machine by the drawing of 8 times, it is prepared into the aluminium erbium titanium alloy wire of �� 4mm;
Described total wireless communication unit, wireless communication unit all adopt gprs communication module; Described display unit adopts numeral method; Described master controller unit and controller unit all adopt MSP430 micro-chip; Described the first switch, the 2nd switch, the 3rd switch all adopt rly..
2. a kind of high pressure transmission of electricity power cable system according to claim 1, it is characterised in that, the method for power cable system searching open circuit point is as follows:
1) transmitted electricity by the high pressure successively end of the first conductor of power cable left end and the 2nd conductor, the first conductor and the 3rd conductor, the 2nd conductor and the 3rd conductor applies 120V volts DS, a series connection DC ammeter in circuit simultaneously;
2) control master controller unit by keyboard unit to close and ON-and OFF-command to the controller transmit button of N/2 terminal breaking point detection unit; When 120V volts DS is applied to the end of the first conductor and the 2nd conductor, closed first switch of controller control of N/2 terminal breaking point detection unit, interval control in 10 seconds disconnects the first switch; When 120V volts DS is applied to the end of the first conductor and the 3rd conductor, closed 2nd switch of controller control of N/2 terminal breaking point detection unit, interval control in 10 seconds disconnects the 2nd switch; When 120V volts DS is applied to the end of the 2nd conductor and the 3rd conductor, closed 3rd switch of controller control of N/2 terminal breaking point detection unit, interval control in 10 seconds disconnects the 3rd switch;
3) if DC ammeter has reading entirely, the right side of open circuit o'clock at N/2 terminal breaking point detection unit is described; If DC ammeter is not entirely have reading, the left side of open circuit o'clock at N/2 terminal breaking point detection unit is described;
4) if open circuit o'clock is on the right side of N/2 terminal breaking point detection unit, then control master controller unit by keyboard unit and close and ON-and OFF-command to the controller transmit button of N/2+1 terminal breaking point detection unit; When 120V volts DS is applied to the end of the first conductor and the 2nd conductor, closed first switch of controller control of N/2+1 terminal breaking point detection unit, interval control in 10 seconds disconnects the first switch; When 120V volts DS is applied to the end of the first conductor and the 3rd conductor, closed 2nd switch of controller control of N/2+1 terminal breaking point detection unit, interval control in 10 seconds disconnects the 2nd switch; When 120V volts DS is applied to the end of the 2nd conductor and the 3rd conductor, closed 3rd switch of controller control of N/2+1 terminal breaking point detection unit, interval control in 10 seconds disconnects the 3rd switch;
If open circuit o'clock is in the left side of N/2 terminal breaking point detection unit, then controls master controller unit by keyboard unit and close and ON-and OFF-command to the controller transmit button of N/2-1 terminal breaking point detection unit; When 120V volts DS is applied to the end of the first conductor and the 2nd conductor, closed first switch of controller control of N/2-1 terminal breaking point detection unit, interval control in 10 seconds disconnects the first switch; When 120V volts DS is applied to the end of the first conductor and the 3rd conductor, closed 2nd switch of controller control of N/2-1 terminal breaking point detection unit, interval control in 10 seconds disconnects the 2nd switch; When 120V volts DS is applied to the end of the 2nd conductor and the 3rd conductor, closed 3rd switch of controller control of N/2-1 terminal breaking point detection unit, interval control in 10 seconds disconnects the 3rd switch;
5) according to step 3) with step 4) method, until finding the position of open circuit point;
6) if when the first switch and the 2nd switch are closed, DC ammeter does not all have reading, illustrates that open circuit o'clock is at the first conductor; If when the first switch and the 3rd switch are closed, DC ammeter does not all have reading, illustrates that open circuit o'clock is at the 2nd conductor; If when the 2nd switch and the 3rd switch are closed, DC ammeter does not all have reading, illustrates that open circuit o'clock is at the 3rd conductor, thus finds out which root conductor open circuit point is positioned at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610204751.4A CN105655052A (en) | 2014-11-03 | 2014-11-03 | High-voltage transmission power cable system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610204751.4A CN105655052A (en) | 2014-11-03 | 2014-11-03 | High-voltage transmission power cable system |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410610596.7A Division CN104319003B (en) | 2014-11-03 | 2014-11-03 | A kind of high voltage power transmission power cable system |
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| CN105655052A true CN105655052A (en) | 2016-06-08 |
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| CN201610204751.4A Pending CN105655052A (en) | 2014-11-03 | 2014-11-03 | High-voltage transmission power cable system |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0164838A1 (en) * | 1984-06-07 | 1985-12-18 | RAYCHEM CORPORATION (a Delaware corporation) | Event location using a locating member containing discrete impedances |
| JP2000146632A (en) * | 1998-11-11 | 2000-05-26 | Tadayoshi Watanabe | Structure for cable type sensor for sensing slope breakdown |
| CN101418401A (en) * | 2008-12-05 | 2009-04-29 | 北京工业大学 | Al-Er alloy conductor material and preparation method thereof |
| CN201812025U (en) * | 2010-09-20 | 2011-04-27 | 中铁十二局集团有限公司 | Failure detection device for power transmission line |
| CN103886978A (en) * | 2014-02-25 | 2014-06-25 | 安徽怡和电缆有限公司 | Insulation instrument signal cable with good toughness |
| CN203826115U (en) * | 2014-02-27 | 2014-09-10 | 安徽江淮电缆集团有限公司 | Improved computer cable |
-
2014
- 2014-11-03 CN CN201610204751.4A patent/CN105655052A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0164838A1 (en) * | 1984-06-07 | 1985-12-18 | RAYCHEM CORPORATION (a Delaware corporation) | Event location using a locating member containing discrete impedances |
| JP2000146632A (en) * | 1998-11-11 | 2000-05-26 | Tadayoshi Watanabe | Structure for cable type sensor for sensing slope breakdown |
| CN101418401A (en) * | 2008-12-05 | 2009-04-29 | 北京工业大学 | Al-Er alloy conductor material and preparation method thereof |
| CN201812025U (en) * | 2010-09-20 | 2011-04-27 | 中铁十二局集团有限公司 | Failure detection device for power transmission line |
| CN103886978A (en) * | 2014-02-25 | 2014-06-25 | 安徽怡和电缆有限公司 | Insulation instrument signal cable with good toughness |
| CN203826115U (en) * | 2014-02-27 | 2014-09-10 | 安徽江淮电缆集团有限公司 | Improved computer cable |
Non-Patent Citations (1)
| Title |
|---|
| 张文军，等: "新型配电线接地故障点查找技术", 《电网技术》 * |
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