CN202443852U - Cascade high-potential energy supplying device - Google Patents

Cascade high-potential energy supplying device Download PDF

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Publication number
CN202443852U
CN202443852U CN201220050270XU CN201220050270U CN202443852U CN 202443852 U CN202443852 U CN 202443852U CN 201220050270X U CN201220050270X U CN 201220050270XU CN 201220050270 U CN201220050270 U CN 201220050270U CN 202443852 U CN202443852 U CN 202443852U
Authority
CN
China
Prior art keywords
winding
iron core
insulator
power supply
high potential
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.)
Withdrawn - After Issue
Application number
CN201220050270XU
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Chinese (zh)
Inventor
苏杏志
黄松波
王岩
罗容波
李慧
刘益军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Original Assignee
Foshan Power Supply Bureau of Guangdong Power Grid Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CN201220050270XU priority Critical patent/CN202443852U/en
Application granted granted Critical
Publication of CN202443852U publication Critical patent/CN202443852U/en
Anticipated expiration legal-status Critical
Withdrawn - After Issue legal-status Critical Current

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Abstract

The utility model discloses a cascade high-potential energy supplying device, which comprises an iron core and an insulating cylinder. An insulator is formed on the periphery of the iron core in a winding manner, so as to enable the iron core to be an all-insulated structure; a primary winding and a secondary winding are respectively arranged at the upper end and the lower end of the insulator; the primary winding and the secondary winding are respectively provided with line-outgoing bushings so as to lead out wiring terminals; and the iron core, the insulator, the primary winding and the secondary winding are all fixedly arranged in the insulating cylinder. The potential isolation between the primary winding and the secondary winding is realized by the insulator, so that the primary winding and the secondary winding are fully located at a high-voltage side or a low-voltage side; and the isolation between the cascade high-potential energy supplying device and an external potential is realized through the insulating cylinder. The cascade high-potential energy supplying device can be mounted between a high-voltage part of an online monitoring device and a mains power supply, and then, the problem of power supply of the high-voltage part of the online monitoring device is solved.

Description

Tandem high potential power supply device
Technical field
The utility model relates to a kind of power equipment, refers in particular to a kind of tandem high potential power supply device.
Background technology
Prior art solves its energy supply problem through be installed in line detector at main equipment high potential place.The situation that on-Line Monitor Device can be monitored electric equipment in real time being installed on high voltage electric equipment, equipment fault is accomplished to handle discovery early, early warning early and morning, to avoid developing into serious accident, is one of important measures that improve the equipment operation reliability.Often need carry out data acquisition and conversion during the on-Line Monitor Device operation at the high-pressure section of high voltage electric equipment; Owing to there is the problem of high low level potential isolation; Therefore can't directly use mains powered, how realize that energy supply that high-pressure section to this high voltage electric equipment carries out data acquisition and converting member is one of precondition that can on-Line Monitor Device reliability service.
For addressing the above problem, it is the on-Line Monitor Device energy supply at high potential place that prior art is taked methods such as high potential energy collecting, laser energy supply and solar energy energy supply.But all there is following deficiency in these methods:
1) high potential energy collecting is to use equipment step-downs such as transformer, instrument transformer to extract electric energy to supply the monitoring component at high potential place to use at the high-pressure section of monitored high voltage electric equipment; Because power supply and on-Line Monitor Device all are in high potential; Therefore do not need potential isolation; Output power can be done greatlyyer in addition, moves also more stable.But its electric energy need extract from monitored high voltage electric equipment; In case high voltage electric equipment is out of service; On-Line Monitor Device can't be worked, and cause carrying out whole process monitoring, the particularly monitoring of combined floodgate and separating brake transient state transient process to the running status of high voltage electric equipment.
2) the laser energy supply is comparatively advanced at present energy supply method technically, and it utilizes energy supply laser machine to convert electrical energy into laser and arrives hot side through Optical Fiber Transmission, converts laser into electric energy again and supplies the on-Line Monitor Device at high potential place to use.Because optical fiber has good insulation property, has guaranteed the isolation between high electronegative potential.But laser energy supply module cost is higher at present; And it is less to send power; In useful life also limited (only about 1000h works under rated condition), therefore the occasion in the lasting uninterrupted more high-power energy supply of needs exists bigger limitation, and reliability of operation is not high yet;
3) the solar energy energy supply is to utilize the method for solar cell+storage battery for the monitoring component at high potential place electric energy to be provided.This method does not also have the problem of height potential isolation, but has the less and bigger deficiency that is affected by the external environment of unit power, only is suitable for the little occasion of power demand.
Summary of the invention
The purpose of the utility model provides a kind of tandem high potential power supply device, and it has overcome the defective of prior art, can be installed between the high-pressure section and mains supply of on-Line Monitor Device, has solved the powerup issue of the high-pressure section of on-Line Monitor Device.
The utility model is achieved in that
A kind of tandem high potential power supply device; It includes at least one iron core and insulating cylinder; The periphery of said iron core is provided with insulator, makes said iron core become all insulation structure, and the upper/lower terminal of said insulator is respectively equipped with winding, secondary winding; Be respectively equipped with the outlet sleeve pipe on a said winding and the said secondary winding and draw its binding post, said iron core, said insulator, a said winding and said secondary winding all are fixed in the said insulating cylinder.Realize the potential isolation between a said winding and said secondary winding through said insulator; Make a said winding and said secondary winding be in the high-pressure side fully or be in low-pressure side fully, and realize the isolation of tandem high potential power supply device and bulk potential through said insulating cylinder.
Preferably, it includes two iron cores, is respectively top iron core and bottom iron core, and said insulator includes top insulator and lower isolator;
The upper end of said top iron core is provided with winding one time, and the lower end is provided with top insulator and top from inside to outside successively and transmits winding;
The upper end of said bottom iron core is provided with lower isolator successively and winding is transmitted in the bottom, and the lower end of said bottom iron core is provided with secondary winding;
Wherein, said top is transmitted winding and is connected with said bottom transmission winding, transmits winding and said bottom transmission winding realization electrical energy transfer through said top.
Said top iron core and said bottom iron core form the two-stage tandem structure; In use; A winding of being located on the iron core of said top is positioned at the high-pressure side, is the output winding, inserts the on-Line Monitor Device at high potential place; Be its energy supply, and a winding connection terminal is identical with the current potential of on-Line Monitor Device; The secondary winding of being located on the iron core of said bottom is positioned at low-pressure side, for the input winding, inserts mains supply.The bottom transmission winding that winding and said bottom iron core are transmitted in the top of said top iron core interconnects, and mains supply is delivered to the output of secondary to high potential side from one-level.
Preferably, a said winding and said secondary winding dress are in series with two resitstance voltage dividers, and outconnector is connected with said top transmission winding and said bottom transmission winding between two said resitstance voltage dividers.
Tandem high potential power supply device adopts graded insulation, and every class F insulation only need bear half the voltage, thereby has solved the problem that the single-stage paper oil insulation can't guarantee to bear full voltage./ 2nd full voltages on the resitstance voltage divider are drawn and transmitted winding and connect; Make and transmit the current potential that winding all has 1/2nd full voltages; Because two are transmitted winding and have only born 1/2nd full voltages separately between the iron core; Therefore the insulator design requirement of strength at this place can reduce greatly, has guaranteed the isolation of high electronegative potential effectively.
Preferably; The upper/lower terminal of said insulating cylinder all is equipped with flange and makes formation seal in the said insulating cylinder; Said outlet sleeve pipe stretches out from said flange, in the said insulating cylinder insulating oil is housed, and has not only strengthened the insulation against ground property between a said winding and said secondary winding; Simultaneously, be beneficial to the heat radiation of said tandem high potential power supply device.
Alternative is that the material of said insulating cylinder is pottery or organic insulation insulating sublayer spare.
Preferably, said insulator twines through the lapped insulation line and forms.
Preferably, the outer wall of said insulating cylinder is provided with the insulation full skirt.
Preferably, the material of said flange is metal or insulating material.
The utility model tandem high potential power supply device compared with prior art has following beneficial effect:
The utility model tandem high potential power supply device has been realized the absolute isolation of winding and secondary winding current potential; The power supply that can provide continually and steadily, not influenced by monitored equipment running status and external environment for the high potential monitoring part of on-Line Monitor Device; Realization can in time be found potential faults to the whole process monitoring of high voltage electric equipment operation conditions, has with being directed against and adopts an effective measure; Avoid taking place serious accident, improve the high voltage electric equipment operational reliability.Can directly avoid contingency to take place, reduce the loss.
With capacitor group on-Line Monitor Device is example, prevents that capacitor crowd hinders, the quick-fried accident of crowd, and its economic loss of directly avoiding capacitor to damage just reaches about 5 ~ 100,000 yuan; And avoid the interruption maintenance economic benefit just bigger, be example with 220kV, 180MVA transformer, as prevent accident one time; 5h less stops transport; The electric weight 900 * 103 of then reducing the loss is spent, and in 0.5 yuan/degree, then reduces economic loss and reaches 450,000 yuan; Social benefit is then bigger, and in 4 yuan/degree, then social benefit will reach 3,600,000 yuan like industrial efficiency.
Description of drawings
Fig. 1 is the structural representation of the utility model tandem high potential power supply device embodiment one;
Fig. 2 is the structural representation of the utility model tandem high potential power supply device embodiment two.
Embodiment
Embodiment to the utility model is elaborated below in conjunction with accompanying drawing:
As shown in Figure 1; The utility model tandem high potential power supply device; It includes iron core 1 and insulating cylinder 2; The periphery of said iron core 1 twine to form insulator 3 through the lapped insulation line, makes said iron core 1 become all insulation structure, and the upper/lower terminal of said insulator 3 is respectively equipped with winding 4, secondary winding 5; Be respectively equipped with outlet sleeve pipe 41,51 on a said winding 4 and the said secondary winding 5 and draw its binding post, said iron core 1, said insulator 3, a said winding 4 and said secondary winding 5 all are fixed in the said insulating cylinder 2.Realize the potential isolation of 5 of said windings 4 and said secondary winding through said insulator 3; Make a said winding 4 be in the high-pressure side fully or be in low-pressure side fully, and realize the isolation of tandem high potential power supply device and bulk potential through said insulating cylinder 2 with said secondary winding 5.
During use, the outlet terminal of a said winding 4 being connected with the high-pressure section of on-Line Monitor Device, forming the high-pressure side, is the output winding, and the outlet terminal of said secondary winding 5 is connected with mains supply, and the formation low-pressure side is to import winding.A said winding 4 is located on the said insulator 3 with said secondary winding 5; Coupling through said iron core 1; Mains supply is delivered to hot side, and realizes the isolation of the inner said winding 4 of tandem high potential power supply device, 5 current potentials of said secondary winding through said insulator 3.
The upper/lower terminal of said insulating cylinder 2 all is equipped with flange 7 and makes formation seal in the said insulating cylinder 2, and said outlet sleeve pipe 41,51 preformed holes from said flange 7 stretch out, and the material of said flange 7 is metal or insulation material.In the said insulating cylinder 2 insulating oil is housed, has not only strengthened the insulation against ground property of 5 of a said winding 4 and said secondary winding, simultaneously, be beneficial to the heat radiation of said tandem high potential power supply device.
Alternative is that the material of said insulating cylinder 2 is pottery or organic insulation insulating sublayer spare.For strengthening the insulating properties of said insulating cylinder 2, the outer wall of said insulating cylinder 2 is provided with the insulation full skirt.
As shown in Figure 2, in this preferred embodiment, said iron core 1 includes two iron cores, is respectively top iron core 11 and bottom iron core 12, and said insulator 3 includes top insulator 31 and lower isolator 32.Wherein, the upper end of said top iron core 11 is provided with winding 4 one time, and the lower end is provided with top insulator 31 from inside to outside successively and transmits winding 33 with top; The upper end of said bottom iron core 12 is provided with lower isolator 32 successively and transmits winding 34 with the bottom, and the lower end of said bottom iron core 12 is provided with secondary winding 5; And said top is transmitted winding 33 and is connected with said bottom transmission winding 34.
Said top iron core 11 forms the two-stage tandem structure with said bottom iron core 12; In use; A winding 4 of being located on the said top iron core 11 is positioned at the high-pressure side, is the output winding, inserts the on-Line Monitor Device at high potential place; Be the on-Line Monitor Device energy supply, and said winding 4 binding posts are identical with the current potential of on-Line Monitor Device; The said secondary winding of being located on the said bottom iron core 12 5 is positioned at low-pressure side, for the input winding, inserts mains supply.The bottom transmission winding 34 that winding 33 and said bottom iron core 12 are transmitted in the top of said top iron core 11 interconnects, and mains supply is delivered to the output of secondary to high potential side from one-level.
A said winding 4 and said secondary winding 5 dresses are in series with the said resitstance voltage divider of 35,36, two of two resitstance voltage dividers 35, outconnector transmits winding 33 with said top and said bottom transmission winding 34 is connected between 36.
Tandem high potential power supply device adopts graded insulation, and every class F insulation only need bear half the voltage, thereby has solved the problem that the single-stage paper oil insulation can't guarantee to bear full voltage./ 2nd full voltages on the resitstance voltage divider are drawn and transmitted winding and connect; Make and transmit the current potential that winding all has 1/2nd full voltages; Because two are transmitted winding and have only born 1/2nd full voltages separately between the iron core; Therefore the insulator design requirement of strength at this place can reduce greatly, has guaranteed the isolation of high electronegative potential effectively.
To be applied as example on the 35kV capacitor group in the 500kV transformer station:
6 tandem high potential power supply devices in on-Line Monitor Device, have been equipped with altogether; Because the capacitor stand is in 1/2 phase-to-ground voltage, for guaranteeing safe operation, it is the 35kV insulation level that tandem high potential power supply device adopts a high grade; The outside is the all-sealed structure of insulator; Input and output voltage is alternating current 220V, and capacity is 10VA, and operation is normal always since putting into operation.
More than be merely the specific embodiment of the utility model, do not limit the protection range of the utility model with this; Do not violate any replacement and the improvement of being done on the basis of the utility model design, all belonging to the protection range of the utility model.

Claims (8)

1. tandem high potential power supply device; It is characterized in that; It includes at least one iron core and insulating cylinder, and the periphery of said iron core is provided with insulator, and the upper/lower terminal of said insulator is respectively equipped with winding, secondary winding; Be respectively equipped with the outlet sleeve pipe on a said winding and the said secondary winding and draw its binding post, said iron core, said insulator, a said winding and said secondary winding all are fixed in the said insulating cylinder.
2. tandem high potential power supply device as claimed in claim 1 is characterized in that it includes two iron cores, is respectively top iron core, bottom iron core, and said insulator includes top insulator and lower isolator;
The upper end of said top iron core is provided with winding one time, and the lower end is provided with said top insulator and top from inside to outside successively and transmits winding;
The upper end of said bottom iron core is provided with said lower isolator successively and winding is transmitted in the bottom, and the lower end of said bottom iron core is provided with secondary winding;
Wherein, said top transmission winding is connected with said bottom transmission winding.
3. tandem high potential power supply device as claimed in claim 2; It is characterized in that; A said winding and said secondary winding dress are in series with two resitstance voltage dividers, and outconnector is connected with said top transmission winding and said bottom transmission winding between two said resitstance voltage dividers.
4. tandem high potential power supply device as claimed in claim 1 is characterized in that, the upper/lower terminal of said insulating cylinder all is equipped with flange and makes formation seal in the said insulating cylinder, and said outlet sleeve pipe stretches out from said flange, in the said insulating cylinder insulating oil is housed.
5. tandem high potential power supply device as claimed in claim 1 is characterized in that, the material of said insulating cylinder is pottery or organic insulation insulating sublayer spare.
6. tandem high potential power supply device as claimed in claim 1 is characterized in that, said insulator twines through the lapped insulation line and forms.
7. tandem high potential power supply device as claimed in claim 1 is characterized in that the outer wall of said insulating cylinder is provided with the insulation full skirt.
8. tandem high potential power supply device as claimed in claim 4 is characterized in that the material of said flange is metal or insulating material.
CN201220050270XU 2012-02-16 2012-02-16 Cascade high-potential energy supplying device Withdrawn - After Issue CN202443852U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201220050270XU CN202443852U (en) 2012-02-16 2012-02-16 Cascade high-potential energy supplying device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201220050270XU CN202443852U (en) 2012-02-16 2012-02-16 Cascade high-potential energy supplying device

Publications (1)

Publication Number Publication Date
CN202443852U true CN202443852U (en) 2012-09-19

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201220050270XU Withdrawn - After Issue CN202443852U (en) 2012-02-16 2012-02-16 Cascade high-potential energy supplying device

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102543410A (en) * 2012-02-16 2012-07-04 广东电网公司佛山供电局 Cascade high-potential energy supply device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102543410A (en) * 2012-02-16 2012-07-04 广东电网公司佛山供电局 Cascade high-potential energy supply device
CN102543410B (en) * 2012-02-16 2014-06-25 广东电网公司佛山供电局 Cascade high-potential energy supply device

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AV01 Patent right actively abandoned

Granted publication date: 20120919

Effective date of abandoning: 20140625

AV01 Patent right actively abandoned

Granted publication date: 20120919

Effective date of abandoning: 20140625

RGAV Abandon patent right to avoid regrant