CN101441932B - Chain high voltage sensing device - Google Patents
Chain high voltage sensing device Download PDFInfo
- Publication number
- CN101441932B CN101441932B CN2008101962709A CN200810196270A CN101441932B CN 101441932 B CN101441932 B CN 101441932B CN 2008101962709 A CN2008101962709 A CN 2008101962709A CN 200810196270 A CN200810196270 A CN 200810196270A CN 101441932 B CN101441932 B CN 101441932B
- Authority
- CN
- China
- Prior art keywords
- iron core
- chain
- coil
- sensing device
- high voltage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000004804 winding Methods 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 238000009413 insulation Methods 0.000 claims abstract description 10
- 229910052573 porcelain Inorganic materials 0.000 claims description 4
- 229920002379 silicone rubber Polymers 0.000 claims description 4
- 239000004945 silicone rubber Substances 0.000 claims description 4
- 230000004907 flux Effects 0.000 claims description 3
- 238000004891 communication Methods 0.000 abstract description 3
- 230000001939 inductive effect Effects 0.000 abstract 3
- 238000010923 batch production Methods 0.000 abstract 1
- 238000013480 data collection Methods 0.000 abstract 1
- 238000004134 energy conservation Methods 0.000 abstract 1
- 230000007613 environmental effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000003467 diminishing effect Effects 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
Images
Landscapes
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
Abstract
The present invention relates to a chain high pressure sensor particularly can be broadly applied to provide reliable power supply to low power device like data collection, communication device etc. of remote monitor system like distribution network automation, characterized in that the insulation shell is provided with a chain sensor inside, wherein the chain sensor binds a plurality of iron core in groups with two in a group and the groups are connected in series to compose public iron core; inductive winding with sensor, namely the coil is wound around two ends of the public iron core and the bound iron core; inductive winding namely the coil are connected in series and arranged to chain sectional iron core; a second winding is wound on the last inductive winding namely the coil for outputting secure low pressure. The invention is convenient for batch production in low cost without any special equipment; no-load loss small, noises low with energy conservation and environmental protection; and can prevent power supply department and high pressure user from electric shock accidents and meet demand of independent reliable power supply that needed in electric parameter signal collection.
Description
Technical field
The present invention relates to a kind of chain high voltage sensing device, the low-power equipment such as data acquisition, communication device that specifically can be widely used in remote supervision systems such as distribution automation provides reliable source of power.
Background technology
Along with developing rapidly of China's urban and rural power grids construction, electric network composition is strengthened further and is perfect, new technology pilot and popularizations in succession such as urban distribution network automated system.For solving distribution electric parameter signals collecting and outdoor independent power supply reliably, simultaneously, for solving the demands such as indication of high voltage alive equipment, develop economical and practical, function admirable, volume is little and rationally (it is desirable to upright structures, floor space is little), high-voltage electrical apparatus parameter/power-type sensing device that cost is low, be that power grid construction has important topic to be solved always.
If adopt common voltage/current instrument transformer or induction type electric indicating device, not only volume is big, cost is high, installation is inconvenient but also false triggering easily.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, thereby a kind of chain high voltage sensing device is provided, be convenient to produce in batches, need not special equipment, cost is low; No-load loss is little, noise is low, energy-conserving and environment-protective, can satisfy power supply department and high pressure user and prevent accident of human electric shock and the independent demand of power supply reliably of electric parameter signals collecting needs.
According to technical scheme provided by the invention, comprise insulation crust, feature is that the chain type transducer is installed in the described insulation crust, described chain type transducer adopts several iron cores to connect in twos and bands together, form the common core part, the inductance winding that is wound with transducer on common core part head and end and the iron core tied up is a coil, the inductance winding is that the mutual arranged in series of coil becomes the chain type segment core, at the last inductance winding is on the coil, be wound with a secondary winding simultaneously, in order to the low-voltage of output safety, utilize the no-voltage that has of the secondary winding of least significant end to judge whether high pressure is charged.
The magnetic flux that different coils produce in the same iron core of described common core part is an equidirectional.Described chain type segment core can adopt stacked, also can adopt volume core type.
Described iron core is the square shape iron core.Described insulation crust adopts pillar porcelain bushing or silicone rubber sleeve.
Compared with the prior art the present invention has the following advantages:
1, owing to adopt chain structure, compare with traditional voltage/current instrument transformer, apparatus cost, volume, installation site all greatly reduce and save, and the measurement of electric parameter precision is not less than 1.0 grades.
2, because the insulating requirements between inner each iron leg heart and the coil is lower, and iron core can with the respective coil equipotential, avoided electric potential floating, partial discharge etc. to be unfavorable for the factor that device moves reliably and with long-term.
3, whole device adopts series-mode frame, flexible configuration, and production cost is low, is fit to produce in batches, and is applied widely.
4, utilize the secondary no-voltage that has of electromagnetic component of least significant end to judge whether high pressure is charged, simultaneously, the secondary charge power supply that small-power (being not more than 5VA) is provided, for low-power equipments such as the data acquisition of remote supervision systems such as distribution automation, communication device provide reliable source of power, so have the dual-use function of " electrification in high voltage indication " and " small-power charge power supply " (being not more than 5VA) concurrently.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is a contour structures schematic diagram of the present invention.
Fig. 3 is the wiring schematic diagrams of apparatus of the present invention under the direct ground connection situation of central point.
Fig. 4 is the wiring schematic diagrams of apparatus of the present invention under central point non_direct ground situation.
Embodiment
Following the present invention is further described middle in conjunction with the accompanying drawings embodiment:
Size of each segment core of the present invention (permeability selection, core section and window size) and coil (conductor cross-section and the number of turn), (in batches, during producing in serial form, can produce each " standard segmentation " in batches) determined in designing requirements according to device voltage, electric parameter sampling request and charge power supply power etc." chain type " quantity is generally determined according to the height design of operating voltage.
As shown in Figure 1 and Figure 2: the chain type transducer comprises: square shape iron core 1, inductance winding are coil 2 and shell 3.With a certain electric pressure is example, and square shape iron core 1 (totally three), inductance winding are coil 2 (totally four).Along with the concrete condition of electric pressure and selected materials and structural design, quantity unshakable in one's determination and coil has nothing in common with each other, and in general, coil quantity is Duoed one than quantity unshakable in one's determination.
Described chain type transducer adopts three square shape iron cores 1 to connect in twos and bands together, form the common core part, the inductance winding that is wound with transducer on common core part head and end and the iron core tied up is a coil 2, the inductance winding is that coil 2 mutual arranged in series become the chain type segment core, at the last inductance winding is on the coil 2, be wound with a secondary winding simultaneously,, utilize the no-voltage that has of the secondary winding of least significant end to judge whether high pressure is charged in order to the low-voltage of output safety.
The characteristics of transducer of the present invention are: the chain structure that adopts unshakable in one's determination, different with existing various current transformers or voltage transformer version, used unshakable in one's determination 1 by square shape composition unshakable in one's determination.Fig. 1 connects " tying up " together in twos with three square shape iron cores, forms the common core part.The inductance winding that is wound with transducer on common core is coil 2 (divide " inductance coil " and " diminishing coil " two kinds, a general coil in the near end is a diminishing coil, and all the other all are inductance coils); Each inductance winding is serially connected in winding of high pressure (note polarity, should guarantee that the magnetic flux that different coils produce in the same core section is an equidirectional) mutually, and Here it is for it " chain type " arranges (as shown in Figure 1, winding lead-out terminal of high pressure is A, O).On the inductance winding of near end, be wound with a low pressure secondary winding simultaneously (as shown in Figure 1, low pressure secondary winding lead-out terminal is a, b), the potential indicator whether electricity is arranged as high pressure in order to the low-voltage (secondary winding is ground connection on one side) of step-down output safety, secondary winding is exported sizeable low-voltage simultaneously, is used for to small-power device power source charges.
Each chain type segment core can adopt stacked, also can adopt volume core type (volume core type no-load loss is lower); Corresponding work winding and control winding adopt " prefabricated " (make separately, be inserted in unshakable in one's determination getting final product during assembling), or " circle is around formula " (must adopt special coil winding equipment), decide on user's request and production unit appointed condition.
The outside schematic diagram of the present invention as shown in Figure 2, insulation crust 3 general pillar porcelain bushing or the silicone rubber sleeves of adopting.Chain type transducer shown in Figure 1 is placed pillar porcelain bushing or silicone rubber sleeve inside, the upright form of chain type transducer and the pillar of insulation crust make up dexterously, installation can not take up room, and its function both had been different from simple capacitance-voltage-distributing type high-voltage potential indicator, also was different from common PT, CT (voltage, current transformer).(3,4 binding posts of representing the low pressure secondary winding respectively among Fig. 2, the low-voltage lead a of Fig. 1 diminishing coil, b are connected on 3,4 terminals).The upper and lower end parts of insulation crust has the internal thread of M12, connects A, the O lead-in wire of high-tension coil respectively.
Electric hookup of the present invention as shown in Figure 3.Fig. 3 is applicable to the central point direct grounding way.The high pressure lead-out wire A of the first segment iron core of transducer is connected in top (adopting the M12 bolted); the top is connected with high-tension fuse RDa with protection again; high-tension fuse RDa is connected with high voltage source A, and the bottom is adopted M12 bolted (identical with top structure) and ground connection equally.
Fig. 3 is applicable to central point non_direct ground mode.Respectively high-tension fuse RDa, RDb, the RDc of three transducer tops with protection usefulness is connected, high-tension fuse RDa, RDb, RDc are connected with power supply A, B, C respectively, after three sensor base are continuous, and ground connection again.Three secondary winding can insert power supply indication respectively, or the supply small-power power, also have one standby.This wiring is applicable to central point non_direct ground mode.
Claims (5)
1. chain high voltage sensing device, comprise insulation crust (3), it is characterized in that installing in the described insulation crust (3) the chain type transducer, described chain type transducer adopts several iron cores (1) to connect in twos and bands together, form the common core part, the inductance winding that is wound with transducer on common core part head and end and the iron core tied up is coil (2), the inductance winding is coil (a 2) arranged in series mutually, at the last inductance winding is on the coil (2), be wound with a secondary winding simultaneously, in order to the low-voltage of output safety, utilize the no-voltage that has of the secondary winding of least significant end to judge whether high pressure is charged.
2. chain high voltage sensing device according to claim 1 is characterized in that the magnetic flux that different coils produce in the described common core same iron core (1) partly is an equidirectional.
3. chain high voltage sensing device according to claim 1 is characterized in that the stacked or volume core type of described employing unshakable in one's determination.
4. chain high voltage sensing device according to claim 1 is characterized in that described iron core (1) is the square shape iron core.
5. chain high voltage sensing device according to claim 1 is characterized in that described insulation crust (3) adopts pillar porcelain bushing or silicone rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101962709A CN101441932B (en) | 2008-08-26 | 2008-08-26 | Chain high voltage sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101962709A CN101441932B (en) | 2008-08-26 | 2008-08-26 | Chain high voltage sensing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101441932A CN101441932A (en) | 2009-05-27 |
| CN101441932B true CN101441932B (en) | 2011-06-15 |
Family
ID=40726310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101962709A Active CN101441932B (en) | 2008-08-26 | 2008-08-26 | Chain high voltage sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101441932B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3835429A (en) * | 1972-02-07 | 1974-09-10 | Siemens Ag | Current transformer |
| CN200965825Y (en) * | 2006-10-20 | 2007-10-24 | 信阳信互电器有限公司 | A novel current mutual-inductor |
| CN201277991Y (en) * | 2008-08-26 | 2009-07-22 | 江苏省电力公司无锡供电公司 | Chain high voltage sensing device |
-
2008
- 2008-08-26 CN CN2008101962709A patent/CN101441932B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3835429A (en) * | 1972-02-07 | 1974-09-10 | Siemens Ag | Current transformer |
| CN200965825Y (en) * | 2006-10-20 | 2007-10-24 | 信阳信互电器有限公司 | A novel current mutual-inductor |
| CN201277991Y (en) * | 2008-08-26 | 2009-07-22 | 江苏省电力公司无锡供电公司 | Chain high voltage sensing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101441932A (en) | 2009-05-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103558440A (en) | Intelligent electronic type voltage transformer | |
| CN205302779U (en) | Electric energy measurement analogue test device | |
| CN202258772U (en) | Epoxy pouring totally-closed support type electronic combined transformer for centrally installed switchgear | |
| CN202534498U (en) | Three-phase-in-one-piece electronic type current voltage transformer | |
| CN102435813B (en) | A kind of method for collecting current on low-voltage side of electric furnace transformer and protective relaying device | |
| CN2836203Y (en) | Combined transformer for metering | |
| CN104637663A (en) | Integrated multi-transformation-ratio transformer and data collection method thereof | |
| CN208399579U (en) | A kind of novel 10kV/35kV Current Voltage sensor | |
| CN201302592Y (en) | Electrical energy measuring cabinet | |
| CN101677031A (en) | Straight wire PCB plane spiral coil primary current sensor | |
| CN201277991Y (en) | Chain high voltage sensing device | |
| CN202189670U (en) | Combined current converter | |
| CN201820628U (en) | Electronic current and voltage transformer | |
| CN102496447B (en) | Electronic single-phase current voltage transformer for gas insulated metal-closed switchgear | |
| CN206074739U (en) | Testing transformer | |
| CN101441932B (en) | Chain high voltage sensing device | |
| CN201435302Y (en) | Current mutual inductor for voltage output | |
| CN201663050U (en) | Electronic combined transformer | |
| CN209087550U (en) | A kind of resistance to rapid transition mutual inductor | |
| CN204390895U (en) | Integrated polytropic ratio instrument transformer | |
| CN201035079Y (en) | Luo coil great current integrated intelligent detector | |
| CN105826000B (en) | A kind of intelligence gas-filling cabinet punching electronic current mutual inductor | |
| CN203013493U (en) | Electronic voltage transformer for high-voltage cubicle type gas insulated switchgear | |
| CN201689776U (en) | Shield isolation voltage transformer below 10 kV | |
| CN201956187U (en) | Electronic type voltage transformer |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: STATE ELECTRIC NET CROP. JIANGSU ELECTRIC POWER CO Effective date: 20120929 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120929 Address after: 214061 Jiangsu province Binhu District of Wuxi City Liangxi Road No. 12 Patentee after: Wuxi Power Supply Co., Ltd, Jiangsu Electric Power Co. Patentee after: State Grid Corporation of China Patentee after: Jiangsu Electric Power Company Address before: 214061 Jiangsu province Binhu District of Wuxi City Liangxi Road No. 12 Patentee before: Wuxi Power Supply Co., Ltd, Jiangsu Electric Power Co. |