CN107517581A - Reduce the method that communication cable disturbs in transformer station using cable cover - Google Patents
Reduce the method that communication cable disturbs in transformer station using cable cover Download PDFInfo
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- CN107517581A CN107517581A CN201710835335.9A CN201710835335A CN107517581A CN 107517581 A CN107517581 A CN 107517581A CN 201710835335 A CN201710835335 A CN 201710835335A CN 107517581 A CN107517581 A CN 107517581A
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- Prior art keywords
- cable cover
- cable
- conduction copper
- copper column
- electric current
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0064—Earth or grounding circuit
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K9/00—Screening of apparatus or components against electric or magnetic fields
- H05K9/0071—Active shielding
Abstract
It is a kind of to reduce the method that communication cable disturbs in transformer station using cable cover, using the cable cover arbitrarily put in transformer station, magnetic flux is disturbed by eliminating to disturb magnetic flux caused by power cable and itself produce caused by counter magnetic flux combined power cable, reaches the purpose for effectively reducing communication cable interference.Step is：N bar conduction copper columns, odd numbers of the n between 15-21 are installed in the horizontal direction in cable cover bottom surface；The series limiting resistor R1 of conduction copper column one, electronic switch one and energy storage device；The series limiting resistor R2 of conduction copper column two, electronic switch two and energy storage device；The largest number of conduction copper column both ends series limiting resistor R3 and milliampere level DC electronic ammeter；Remaining numbering is that the conduction copper column of odd number correspond to the connection of cable cover tail end one end and to number be that the conduction copper column of even number corresponds to cable cover head end one end and connects and be connected to the grounded screen of transformer station；Current acquisition and switch controlling device for controlling electronic switch is installed in cable cover bottom.
Description
Technical field
Reduce the method that communication cable disturbs in transformer station using cable cover the present invention relates to a kind of.
Background technology
At present, communication cable is general using with reducing the external world by the way of power cable layering or multiple twin winding in transformer station
Interference to itself.Because power cable and communication cable are more in transformer station, the particularly current intelligent power transformation gradually popularized
In standing, communication cable is more and more, increasingly longer, outer bound pair its interference it is also more and more obvious.By communication cable in transformer station
There is mess code after being often disturbed in the important telecontrol information of carrying, and these bring very big to the normal monitoring of transformer station and maintenance
Influence.
The content of the invention
The present invention is to propose a kind of method for reducing communication cable interference in transformer station using cable cover, and this method can
So that using the cable cover arbitrarily put in transformer station, magnetic flux and itself production are disturbed caused by power cable by eliminating
Interference magnetic flux two ways, reaches the purpose for effectively reducing communication cable interference caused by raw counter magnetic flux combined power cable.
The technical scheme is that：
Reduce the method that communication cable disturbs in transformer station using cable cover, its step is as follows：
1st, n bar conduction copper columns are installed in the cable cover bottom surface on the cable duct being connected with master control room in the horizontal direction, and n is
Odd number between 15-21, conduction copper column are laid according to cable duct cable laying direction, are numbered respectively to opposite side by side and be
Conduction copper column one, conduction copper column two ... conduction copper column 17；Insulated between two adjacent conduction copper columns；
2nd, the series limiting resistor R1 of conduction copper column one, electronic switch one and energy storage device, energy storage device are arranged on cable cover
Plate head end, to close on transformer side, direction of current flow of the energy storage device through conduction copper column one is set the cable cover head end
It is set to and cable cover end is flow to by cable cover head end；
The series limiting resistor R2 of conduction copper column two, electronic switch two and the energy storage device, the energy storage device is through conduction
The direction of current flow of copper post two is arranged to by cable cover end to cable cover head end；
The initial state of the electronic switch one, two is to divide position；
3rd, the largest number of conduction copper column both ends series limiting resistor R3 and milliampere level DC electronic ammeter；
4th, remaining numbering is that the conduction copper column of odd number corresponds to one end connection of cable cover tail end, and is connected to transformer station
Grounded screen；Remaining numbering is that the conduction copper column of even number corresponds to one end connection of cable cover head end, and is connected to transformer station
Grounded screen；
The 5th, current acquisition and switch controlling device for controlling electronic switch, the electric current are installed in cable cover bottom
Collection and switch controlling device connection milliampere level DC electronic ammeter, automatic switch one and automatic switch two；The electric current is adopted
Collection and switch controlling device are with the data for the milliampere level DC electronic ammeter being connected in the conduction copper column loop of maximum numbering
As criterion, when the current value that DC electronic ammeter is shown is more than+50mA, start automatic switch one, close automatic switch
Two；When the current value that DC electronic ammeter is shown is between -50mA~+50mA, automatic switch one and automatic switch are closed
Two；When the current value that DC electronic ammeter is shown is less than -50mA, start automatic switch two, close automatic switch one；
6th, when the electric current in power cable disturbs magnetic flux as caused by cable cover end flows to the head end of cable cover
Make the conduction copper column generation of the maximum numbering on installation cable cover by cable cover head end flow to cable cover end >=it is dry
When to disturb electric current be -50mA, interference electric current is through all odd-numbereds in addition to conduction copper column one and the largest number of conduction copper column
Conduction copper column, grounding net of transformer substation eliminate in time；Or when the electric current in power cable flows to cable cover by cable cover head end
End caused by interference magnetic flux the conduction copper column of the maximum numbering on installation cable cover is generated by cable cover end
Interference electric current≤+ 50mA of cable cover head end is flowed to, interference electric current is led through all even-numbereds in addition to conduction copper column two
Electrolytic copper post, grounding net of transformer substation eliminate in time；
7th, when the electric current in the power cable for flowing to cable cover end by cable cover head end more greatly produces interference magnetic flux
When raw electric current is more than 50mA, current acquisition and switch controlling device start automatic switch two, and energy storage is used by conduction copper column two
Installation's power source produces electric current, and magnetic flux caused by the electric current is with magnetic flux caused by the moment power cable on the contrary, integrated interference magnetic flux；
8th, when the electric current in the power cable of head end that cable cover is flowed to by cable cover end makes more greatly interference magnetic flux
When caused electric current is less than -50mA, controller starts automatic switch one, is produced by conduction copper column one using energy storage device power supply
Electric current, magnetic flux caused by the electric current is with magnetic flux caused by the moment power cable on the contrary, integrated interference magnetic flux.
Further preferably, the solar panels of the energy storage device You≤100AH provide power supply.
Further preferably, the resistance of the conduction copper column is 4-5 Ω.
The beneficial effects of the invention are as follows：
1st, content of the present invention is convenient to carry out, and the position that cable cover can be arbitrarily put in transformer station uses；
2nd, the cable cover using flexible being related in the present invention, solar energy can be connected to energy storage device when using out of doors
Charged, can be without using energy storage device, isolated operation during indoor use；
3rd, the method for the invention, as caused by electric current flowing magnetic flux can will be disturbed to be converted into power cable in time
Induced-current is transferred to the earth, reduces its caused interference electric current in communication cable, reduces communication cable interference so as to realize
Function；
4th, when the interference magnetic flux in power cable is larger, the method for the invention can be opened with the automatic of firing cable cover plate
Close, reverse current, generation and the magnetic flux of interference flux-reversal are produced by solar powered energy storage device in the loop, it is comprehensive
Magnetic flux is disturbed, so as to which flux regulator will be disturbed to realize the function of reducing communication cable interference in relatively low scope.
5th, when starting the synthesis a direction interference magnetic flux of automatic switch one, time that automatic switch two is formed can be closed automatically
Road, to prevent extra interference caused by parasitic loop, strengthen the anti-jamming effectiveness of communication cable.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Embodiment
As shown in figure 1, reducing the method that communication cable disturbs in transformer station using cable cover, its step is as follows：
1st, it is 4-5 that n bars resistance is installed in the bottom surface of cable cover 1 on the cable duct being connected with master control room in the horizontal direction
Ω conduction copper column, odd numbers of the n between 15-21, conduction copper column are laid according to cable duct cable laying direction, by side extremely
It is conduction copper column one, conduction copper column two ... conduction copper column 17 that opposite side is numbered respectively；Between two adjacent conduction copper columns
Insulation；
2nd, the series limiting resistor R1 of conduction copper column one, electronic switch one and energy storage device, the energy storage device is by≤100AH
Solar panels power supply is provided, energy storage device is arranged on cable cover head end 101, and the cable cover head end is to close on transformer
Side, direction of current flow of the energy storage device through conduction copper column one are arranged to flow to cable cover end by cable cover head end 101
End 102；
The series limiting resistor R2 of conduction copper column two, electronic switch two and the energy storage device, the energy storage device is through conduction
The direction of current flow of copper post two is arranged to by cable cover end to cable cover head end；
The initial state of the electronic switch one, two is to divide position；
3rd, the largest number of conduction copper column both ends series limiting resistor R3 and milliampere level DC electronic ammeter；
4th, remaining numbering is that the conduction copper column of odd number corresponds to one end connection of cable cover tail end, and is connected to transformer station
Grounded screen；Remaining numbering is that the conduction copper column of even number corresponds to one end connection of cable cover head end, and is connected to transformer station
Grounded screen；
The 5th, current acquisition and switch controlling device for controlling electronic switch, the electric current are installed in cable cover bottom
Collection and switch controlling device connection milliampere level DC electronic ammeter, automatic switch one and automatic switch two；The electric current is adopted
Collection and switch controlling device are with the data for the milliampere level DC electronic ammeter being connected in the conduction copper column loop of maximum numbering
As criterion, when the current value that DC electronic ammeter is shown is more than+50mA, start automatic switch one, close automatic switch
Two；When the current value that DC electronic ammeter is shown is between -50mA~+50mA, automatic switch one and automatic switch are closed
Two；When the current value that DC electronic ammeter is shown is less than -50mA, start automatic switch two, close automatic switch one；
6th, when the electric current in power cable disturbs magnetic flux as caused by cable cover end flows to the head end of cable cover
Make the conduction copper column generation of the maximum numbering on installation cable cover by cable cover head end flow to cable cover end >=it is dry
When to disturb electric current be -50mA, interference electric current is through all odd-numbereds in addition to conduction copper column one and the largest number of conduction copper column
Conduction copper column, grounding net of transformer substation eliminate in time；Or when the electric current in power cable flows to cable cover by cable cover head end
End caused by interference magnetic flux the conduction copper column of the maximum numbering on installation cable cover is generated by cable cover end
Interference electric current≤+ 50mA of cable cover head end is flowed to, interference electric current is led through all even-numbereds in addition to conduction copper column two
Electrolytic copper post, grounding net of transformer substation eliminate in time；
7th, when the electric current in the power cable for flowing to cable cover end by cable cover head end more greatly produces interference magnetic flux
When raw electric current is more than 50mA, current acquisition and switch controlling device start automatic switch two, and energy storage is used by conduction copper column two
Installation's power source produces electric current, and magnetic flux caused by the electric current is with magnetic flux caused by the moment power cable on the contrary, integrated interference magnetic flux；
8th, when the electric current in the power cable of head end that cable cover is flowed to by cable cover end makes more greatly interference magnetic flux
When caused electric current is less than -50mA, controller starts automatic switch one, is produced by conduction copper column one using energy storage device power supply
Electric current, magnetic flux caused by the electric current is with magnetic flux caused by the moment power cable on the contrary, integrated interference magnetic flux.
The specific embodiment of the present invention is these are only, is not intended to limit the invention, for those skilled in the art
For member, the present invention can have various modifications and variations.Any modification within the spirit and principles of the invention, being made,
Equivalent substitution, improvement etc., should be included in the scope of the protection.
Claims (3)
1. reduce the method that communication cable disturbs in transformer station using cable cover, it is characterized in that：Step is as follows：
1), n bar conduction copper columns are installed in the cable cover bottom surface on the cable duct being connected with master control room in the horizontal direction, and n is
Odd number between 15-21, conduction copper column are laid according to cable duct cable laying direction, are numbered respectively to opposite side by side and be
Conduction copper column one, conduction copper column two ... conduction copper column 17；Insulated between two adjacent conduction copper columns；
2), the series limiting resistor R1 of conduction copper column one, electronic switch one and energy storage device, it is first that energy storage device is arranged on cable cover
End, to close on transformer side, direction of current flow of the energy storage device through conduction copper column one is arranged to the cable cover head end
Cable cover end is flow to by cable cover head end；
The series limiting resistor R2 of conduction copper column two, electronic switch two and the energy storage device, the energy storage device is through conduction copper column
Two direction of current flow is arranged to by cable cover end to cable cover head end；
The initial state of the electronic switch one, two is to divide position；
3), the largest number of conduction copper column both ends series limiting resistor R3 and milliampere level DC electronic ammeter；
4), remaining numbering is that the conduction copper column of odd number corresponds to one end connection of cable cover tail end, and is connected to transformer station
Grounded screen；Remaining numbering is that the conduction copper column of even number corresponds to one end connection of cable cover head end, and is connected to transformer station
Grounded screen；
5), the current acquisition and switch controlling device for controlling electronic switch are installed in cable cover bottom, the electric current is adopted
Collection and switch controlling device connection milliampere level DC electronic ammeter, automatic switch one and automatic switch two；The current acquisition
And switch controlling device is made with the data for the milliampere level DC electronic ammeter being connected in the conduction copper column loop of maximum numbering
For criterion, when the current value that DC electronic ammeter is shown is more than+50mA, start automatic switch one, close automatic switch two；
When the current value that DC electronic ammeter is shown is between -50mA~+50mA, automatic switch one and automatic switch two are closed；
When the current value that DC electronic ammeter is shown is less than -50mA, start automatic switch two, close automatic switch one；
6), when the electric current in power cable disturbs magnetic flux to make peace as caused by cable cover end flows to the head end of cable cover
The conduction copper column generation of maximum numbering on dress cable cover by cable cover head end flow to cable cover end >=interference electricity
Flow for -50mA when, conduction of the interference electric current through all odd-numbereds in addition to conduction copper column one and the largest number of conduction copper column
Copper post, grounding net of transformer substation eliminate in time；Or when the electric current in power cable is flowed to by cable cover head end the end of cable cover
Interference magnetic flux caused by end makes the conduction copper column generation of the maximum numbering on installation cable cover be flowed to by cable cover end
Interference electric current≤+ 50mA of cable cover head end, conductive copper of the interference electric current through all even-numbereds in addition to conduction copper column two
Post, grounding net of transformer substation eliminate in time；
7), when the electric current in the power cable for flowing to cable cover end as cable cover head end makes more greatly caused by interference magnetic flux
When electric current is more than 50mA, current acquisition and switch controlling device start automatic switch two, and energy storage device is used by conduction copper column two
Power supply produces electric current, and magnetic flux caused by the electric current is with magnetic flux caused by the moment power cable on the contrary, integrated interference magnetic flux；
8), when the electric current in the power cable of head end that cable cover is flowed to by cable cover end more greatly produces interference magnetic flux
Electric current when being less than -50mA, controller starts automatic switch one, and electric current is produced using energy storage device power supply by conduction copper column one,
Magnetic flux caused by the electric current is with magnetic flux caused by the moment power cable on the contrary, integrated interference magnetic flux.
2. according to claim 1 reduce the method that communication cable disturbs in transformer station using cable cover, it is characterized in that
The solar panels of the energy storage device You≤100AH provide power supply.
3. according to claim 1 reduce the method that communication cable disturbs in transformer station using cable cover, it is characterized in that
The resistance of the conduction copper column is 4-5 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835335.9A CN107517581B (en) | 2017-09-15 | 2017-09-15 | Reduce the method for communication cable interference in substation using cable cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710835335.9A CN107517581B (en) | 2017-09-15 | 2017-09-15 | Reduce the method for communication cable interference in substation using cable cover |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107517581A true CN107517581A (en) | 2017-12-26 |
| CN107517581B CN107517581B (en) | 2019-11-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710835335.9A Active CN107517581B (en) | 2017-09-15 | 2017-09-15 | Reduce the method for communication cable interference in substation using cable cover |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2525658Y (en) * | 2002-04-02 | 2002-12-11 | 李志俊 | High frequency switch transformer winding structure and bus plate support |
| CN1918764A (en) * | 2003-07-30 | 2007-02-21 | 普雷斯曼电缆及系统能源有限公司 | Method for shielding magnetic field generated by an electrical power transmission line and electrical power transmission line so shielded |
| CN102636723A (en) * | 2012-05-04 | 2012-08-15 | 新疆维吾尔自治区送变电工程公司 | Secondary cable checking method for transformer substation |
| CN204464431U (en) * | 2013-01-29 | 2015-07-08 | 株式会社村田制作所 | High frequency signal transmission line and electronic equipment |
| EP2991173A1 (en) * | 2014-08-28 | 2016-03-02 | Tyco Electronics Corporation | Connector assembly with cable bundle |
-
2017
- 2017-09-15 CN CN201710835335.9A patent/CN107517581B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2525658Y (en) * | 2002-04-02 | 2002-12-11 | 李志俊 | High frequency switch transformer winding structure and bus plate support |
| CN1918764A (en) * | 2003-07-30 | 2007-02-21 | 普雷斯曼电缆及系统能源有限公司 | Method for shielding magnetic field generated by an electrical power transmission line and electrical power transmission line so shielded |
| CN102636723A (en) * | 2012-05-04 | 2012-08-15 | 新疆维吾尔自治区送变电工程公司 | Secondary cable checking method for transformer substation |
| CN204464431U (en) * | 2013-01-29 | 2015-07-08 | 株式会社村田制作所 | High frequency signal transmission line and electronic equipment |
| EP2991173A1 (en) * | 2014-08-28 | 2016-03-02 | Tyco Electronics Corporation | Connector assembly with cable bundle |
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| Publication number | Publication date |
|---|---|
| CN107517581B (en) | 2019-11-12 |
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