CN103426629A - Low-voltage power capacitor - Google Patents
Low-voltage power capacitor Download PDFInfo
- Publication number
- CN103426629A CN103426629A CN2013103614763A CN201310361476A CN103426629A CN 103426629 A CN103426629 A CN 103426629A CN 2013103614763 A CN2013103614763 A CN 2013103614763A CN 201310361476 A CN201310361476 A CN 201310361476A CN 103426629 A CN103426629 A CN 103426629A
- Authority
- CN
- China
- Prior art keywords
- capacitor
- terminal module
- current
- power capacitor
- temperature signal
- 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.)
- Granted
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 91
- 238000001514 detection method Methods 0.000 claims abstract description 10
- 238000007789 sealing Methods 0.000 claims description 12
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 11
- 239000000741 silica gel Substances 0.000 claims description 11
- 229910002027 silica gel Inorganic materials 0.000 claims description 11
- 239000004593 Epoxy Substances 0.000 claims description 8
- 230000004224 protection Effects 0.000 claims description 7
- 238000012856 packing Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000007935 neutral effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Images
Landscapes
- Power Conversion In General (AREA)
- Dc-Dc Converters (AREA)
Abstract
The invention provides a low-voltage power capacitor which comprises a current temperature signal integrated terminal module, a current transformer and a temperature sensor. The current temperature signal integrated terminal module is connected onto a top cover plate of the capacitor, the current transformer is connected with the current temperature signal integrated terminal module and used for detecting internal current signals of the power capacitor, the temperature sensor is used for detecting internal temperature signals of the power capacitor, and the current temperature signal integrated terminal module is connected with a detection control unit outside the capacitor to control and protect the capacitor. The low-voltage power capacitor has the advantages that internal operating current and temperature of the power capacitor can be monitored, feedback signals are rapidly collected, and the power capacitor is timely protected.
Description
Technical field
The invention of this reality relates to the low-voltage power and capacitance technical field, refers to especially a kind of power capacitor of being convenient to Detection capacitance device internal current and temperature.
Background technology
In low-voltage distribution, power capacitor is absolutely necessary.Only comprise A, B, C three phase mains binding post and zero line binding post on traditional power capacitor lamina tecti.Therefore, power capacitor itself can't provide capacitor internal current signal and temperature signal.Can not reflect in real time capacitor working stream situation, the abnormal conditions such as the harmonic wave in electric power system, surge are fed back in real time; Also can't to capacitor, be protected by the switching state of control capacitor.Also have the temperature of capacitor internal not measure in real time, can't realize the real-time monitoring to capacitor self variations in temperature, thereby reflect the working temperature state of capacitor, realize the protection to capacitor.
Summary of the invention
The present invention proposes a kind of low voltage power capacitor, has solved the problem that can not reflect capacitor working stream situation and monitoring internal temperature in the prior art.
Technical scheme of the present invention is achieved in that a kind of low voltage power capacitor, comprises the integrated terminal module of current temperature signal be connected on the capacitor lamina tecti and is connected with the integrated terminal module of current temperature signal and for detection of the current transformer of power capacitor internal current signal with for detection of the temperature sensor of power capacitor internal temperature signal; The detection control unit that the integrated terminal module of described current temperature signal connects the capacitor outside, realize the control and protection to capacitor.
Further preferred as the present invention, be provided with the three phase mains terminal module on described capacitor lamina tecti, be respectively equipped with power supply terminal on described three phase mains terminal module and the integrated terminal module of current temperature signal.
Further preferred as the present invention, described power supply terminal comprises: the plastic end submodule, and it is arranged on the capacitor lamina tecti; Binding post/stud, it is arranged on the capacitor lamina tecti through the plastic end submodule; Silica gel sealing ring, it is arranged on the capacitor lamina tecti and seals; Current transformer, it is arranged on the below of silica gel sealing ring; The epoxy pad, it is arranged on the below of current transformer; Nut, it is arranged on the below of epoxy pad, for connecting Binding post/stud and fixedly silica gel sealing ring, current transformer and epoxy pad.
Further preferred as the present invention, be respectively equipped with the current signal binding post be connected with current transformer and the temperature signal binding post be connected with temperature sensor on the integrated terminal module of described current temperature signal.
Further preferred as the present invention, described capacitor internal is provided with the capacitance core group, and described temperature sensor is arranged between the capacitance core group.
Further preferred as the present invention, be provided with the burst disk be connected with the three phase mains terminal module between the integrated terminal module of described current temperature signal and three phase mains terminal module.
Further preferred as the present invention, the integrated terminal module of described current temperature signal is provided with zero terminal.
Further preferred as the present invention, the center of described capacitor lamina tecti is provided with grounding screw.
Beneficial effect of the present invention is as follows:
With traditional power capacitor, compare, the present invention is provided with the current transformer that detects power capacitor internal current signal and for detection of the temperature sensor of power capacitor internal temperature signal.The operating current situation of reflection capacitor that can be real-time is carried out real-time feedback to abnormal conditions such as the harmonic wave in electric power system, surges simultaneously, by the switching state of control capacitor, capacitor is protected.By the capacitor internal temperature is measured in real time, realize capacitor self variations in temperature is carried out to real-time monitoring, and reflect the working temperature state of capacitor, realize the protection to capacitor.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is capacitor lamina tecti structural representation of the present invention;
Fig. 2 is vertical view of the present invention;
Fig. 3 is cutaway view of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
As Figure 1-3, a kind of low voltage power capacitor, comprise capacitor lamina tecti 1, and the integrated terminal module 2 of current temperature signal and three phase mains terminal module 5 are arranged on respectively the right and left of capacitor lamina tecti 1 upper surface.The center of capacitor lamina tecti 1 is provided with grounding screw 18, can guarantee the reliable ground of power capacitor.The integrated terminal module 2 of current temperature signal is provided with zero terminal 15.Forceful electric power module and the such light current module of the integrated terminal module 2 of current temperature signal that three phase mains terminal module 5 is such separately design, intercondenser two modules was designed with burst disk 11 originally, can effectively guarantee capacitor safety and reliability in use.Three phase mains terminal module 5 comprises power supply terminal A phase, B phase and C phase.Burst disk 11 is connected with wire with 5 of three phase mains terminal modules, and the electric clearance between the A phase of three phase mains terminal module 5, C phase and burst disk is designed to 19.5mm, meets the requirement that voltage is the electric clearance between 690V～800V.
Each power supply terminal 14 comprises plastic end submodule 13, Binding post/stud 6, silica gel sealing packing ring 8, current transformer 3, epoxy pad 9, nut 10.Plastic end submodule 13 is arranged on capacitor lamina tecti 1, and Binding post/stud 6 passes plastic end submodule 13, and is arranged on capacitor lamina tecti 1; Silica gel sealing packing ring 8 is placed between Binding post/stud 6 and capacitor lamina tecti 1, utilizes silica gel sealing packing ring 8 retractilities and ductility, eliminates Binding post/stud 6 and capacitor lamina tecti 1 gap, reaches zero clearance, has also played sealing function preferably; For the capacitor of oily formula, can effectively prevent that the fluid of capacitor internal from overflowing from terminal hole; Utilize the elasticity of silica gel sealing packing ring 8 simultaneously, played the effect of spring shim here, there is the effect that prevents that preferably nut 10 is loosening.On wiring screw rod 6, current transformer 3 is installed after silica gel sealing packing ring 8, this kind of connected mode can increase electric clearance and the creepage distance between nut 10 capacitor lamina tectis 1 on the one hand, can measure more accurately on the other hand the current signal of each phase in capacitor.Epoxy pad 9 is installed after current transformer 3, can be played effect heat insulation, that insulate, increase electric clearance and creepage distance, can guarantee the fastening rear held stationary of whole Binding post/stud 6 simultaneously.Consider the actual operating conditions of capacitor, its maximum is born voltage may reach 800V, therefore, for three phase mains terminal module 5, the electric clearance between each power supply terminal is designed to 16mm(according to the GB/T15576-2008 standard design).
Power capacitor divides common apotype and minute apotype.Be total to the power capacitor of apotype, need two current transformers 3, A phase current mutual inductor 3 and C phase current mutual inductor 3, IA1, IA2, IC1, IC2 totally 4 lead-in wires are arranged, will be wherein two Same Name of Ends lead-in wire IA2 and IC2 link together, the neutral line binding post IN that is connected to the current signal binding post 17 on the integrated terminal module 2 of current temperature signal is upper, and two lines in addition are connected respectively on IA and IC current signal binding post 17.The power capacitor that divides apotype, need three current transformers 3, A phase current mutual inductor 3, B phase current mutual inductor 3, C phase current mutual inductor 3, amount to 6 lead-in wires, wherein 3 Same Name of Ends lead-in wire IA2, IB2, IC2 link together, and the neutral line terminal IN that is connected to the current signal binding post 17 on the integrated terminal module 2 of current temperature signal is upper, other 3 draw root line IA1, IB1, IC1 connect respectively on IA, IB, IC current signal binding post 17.Temperature sensor 4 has two lead-in wires, is connected on two temperature signal binding posts 16 at middle part on current temperature signal integration module 2.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (8)
1. a low voltage power capacitor, it is characterized in that, comprise the integrated terminal module of current temperature signal (2) be connected on capacitor lamina tecti (1) and be connected with the integrated terminal module of current temperature signal (2) and for detection of the current transformer (3) of power capacitor internal current signal with for detection of the temperature sensor (4) of power capacitor internal temperature signal; The integrated terminal module of described current temperature signal (2) connects the detection control unit (12) of capacitor outside, realizes the control and protection to capacitor.
2. a kind of low voltage power capacitor according to claim 1, is characterized in that, is provided with three phase mains terminal module (5) on described capacitor lamina tecti (1), and described three phase mains terminal module (5) is provided with power supply terminal (14).
3. a kind of low voltage power capacitor according to claim 2, is characterized in that, described power supply terminal (14) comprising: plastic end submodule (13), and it is arranged on capacitor lamina tecti (1); Binding post/stud (6), it is arranged on capacitor lamina tecti (1) through plastic end submodule (13); Silica gel sealing ring (8), it is arranged on capacitor lamina tecti (1) above and seals; Current transformer (3), it is arranged on the below of silica gel sealing ring (8); Epoxy pad (9), it is arranged on the below of current transformer (3); Nut (10), it is arranged on the below of epoxy pad (9), for connecting Binding post/stud (6) and fixedly silica gel sealing ring (8), current transformer (3) and epoxy pad (9).
4. a kind of low voltage power capacitor according to claim 2, it is characterized in that, be respectively equipped with the current signal binding post (17) be connected with current transformer (3) and the temperature signal binding post (16) be connected with temperature sensor (4) on the integrated terminal module of described current temperature signal (2).
5. according to the described a kind of low voltage power capacitor of claim 1 or 4, it is characterized in that, described capacitor internal is provided with capacitance core group (7), and described temperature sensor (4) is arranged between capacitance core group (7).
6. a kind of low voltage power capacitor according to claim 1 and 2, it is characterized in that, between the integrated terminal module of described current temperature signal (2) and three phase mains terminal module (5), be provided with the burst disk (11) be connected with three phase mains terminal module (5).
7. a kind of low voltage power capacitor according to claim 4, is characterized in that, the integrated terminal module of described current temperature signal (2) is provided with zero terminal (15).
8. a kind of low voltage power capacitor according to claim 1, is characterized in that, is provided with the Binding post/stud (18) that can make the power capacitor reliable ground on described capacitor lamina tecti (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310361476.3A CN103426629B (en) | 2013-08-19 | 2013-08-19 | A kind of low voltage power capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310361476.3A CN103426629B (en) | 2013-08-19 | 2013-08-19 | A kind of low voltage power capacitor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103426629A true CN103426629A (en) | 2013-12-04 |
| CN103426629B CN103426629B (en) | 2017-03-29 |
Family
ID=49651234
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310361476.3A Active CN103426629B (en) | 2013-08-19 | 2013-08-19 | A kind of low voltage power capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103426629B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280364A (en) * | 2015-06-24 | 2016-01-27 | 浙江海得新能源有限公司 | Installation structure of transformer |
| CN107633947A (en) * | 2017-08-31 | 2018-01-26 | 池州市容大电气有限公司 | A kind of intelligently realizing explosion-proof capacitor from explosion lid |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2234648Y (en) * | 1995-12-05 | 1996-09-04 | 胡庆胜 | Power capacitor with display function |
| EP0734032A2 (en) * | 1995-03-20 | 1996-09-25 | ROEDERSTEIN SPEZIALFABRIKEN FÜR BAUELEMENTE DER ELEKTRONIK UND KONDENSATOREN DER STARKSTROMTECHNIK GmbH | Power capacitor |
| CN2779575Y (en) * | 2005-03-21 | 2006-05-10 | 南通现代电力科技有限公司 | Low-voltage power capacitor with built-in temperature sensor |
| CN201117437Y (en) * | 2007-10-15 | 2008-09-17 | 田锡公 | Capacitor bank possessing temperature sensor |
| JP2009111370A (en) * | 2007-10-10 | 2009-05-21 | Panasonic Corp | Case mold type capacitor |
| CN201466734U (en) * | 2009-07-02 | 2010-05-12 | 上海继铁电力自动化科技有限公司 | Intelligent phase control type low-voltage power capacitor |
| CN201570379U (en) * | 2009-11-12 | 2010-09-01 | 恒一电气有限公司 | Capacitor |
| CN201860119U (en) * | 2010-11-17 | 2011-06-08 | 杭州西子集团有限公司 | Integrated multi-loop low-voltage parallel-connection power capacitor |
| CN203103122U (en) * | 2013-01-09 | 2013-07-31 | 安徽精新能源科技股份有限公司 | Capacitor lead-out cover plate |
| CN203444980U (en) * | 2013-08-19 | 2014-02-19 | 浙江南德电气有限公司 | Low voltage power capacitor |
-
2013
- 2013-08-19 CN CN201310361476.3A patent/CN103426629B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0734032A2 (en) * | 1995-03-20 | 1996-09-25 | ROEDERSTEIN SPEZIALFABRIKEN FÜR BAUELEMENTE DER ELEKTRONIK UND KONDENSATOREN DER STARKSTROMTECHNIK GmbH | Power capacitor |
| CN2234648Y (en) * | 1995-12-05 | 1996-09-04 | 胡庆胜 | Power capacitor with display function |
| CN2779575Y (en) * | 2005-03-21 | 2006-05-10 | 南通现代电力科技有限公司 | Low-voltage power capacitor with built-in temperature sensor |
| JP2009111370A (en) * | 2007-10-10 | 2009-05-21 | Panasonic Corp | Case mold type capacitor |
| CN201117437Y (en) * | 2007-10-15 | 2008-09-17 | 田锡公 | Capacitor bank possessing temperature sensor |
| CN201466734U (en) * | 2009-07-02 | 2010-05-12 | 上海继铁电力自动化科技有限公司 | Intelligent phase control type low-voltage power capacitor |
| CN201570379U (en) * | 2009-11-12 | 2010-09-01 | 恒一电气有限公司 | Capacitor |
| CN201860119U (en) * | 2010-11-17 | 2011-06-08 | 杭州西子集团有限公司 | Integrated multi-loop low-voltage parallel-connection power capacitor |
| CN203103122U (en) * | 2013-01-09 | 2013-07-31 | 安徽精新能源科技股份有限公司 | Capacitor lead-out cover plate |
| CN203444980U (en) * | 2013-08-19 | 2014-02-19 | 浙江南德电气有限公司 | Low voltage power capacitor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105280364A (en) * | 2015-06-24 | 2016-01-27 | 浙江海得新能源有限公司 | Installation structure of transformer |
| CN107633947A (en) * | 2017-08-31 | 2018-01-26 | 池州市容大电气有限公司 | A kind of intelligently realizing explosion-proof capacitor from explosion lid |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103426629B (en) | 2017-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101893670B (en) | Photoelectric measurement system for high-voltage direct current power transmission converter valve | |
| CN109001511B (en) | Micro-ammeter | |
| CN203444980U (en) | Low voltage power capacitor | |
| CN106451489A (en) | Intelligent low-voltage power capacitor | |
| CN103426629A (en) | Low-voltage power capacitor | |
| CN203192684U (en) | Integrated solid-sealed polar pole for intellectualized circuit breaker | |
| CN208580163U (en) | Power high voltage dry-type air-core reactor on-line intelligence monitors system | |
| CN203759182U (en) | Lightning arrester for electric power circuit | |
| CN203882861U (en) | Column type circuit breaker integrated with electronic current transformer | |
| CN201569508U (en) | Temperature rise monitoring and analyzing device of high-pressure equipment | |
| CN202267717U (en) | Live test rod for lightning arrester | |
| CN101907653B (en) | Signal acquisition and transmission device for high-voltage DC transmission converter valve | |
| CN108710020B (en) | Energy-taking and measuring capacitive dual voltage sensor for power distribution equipment | |
| CN203746636U (en) | Novel power transformer structure with sleeve type current transformer | |
| CN201780683U (en) | Signal acquisition and sending device | |
| CN203274957U (en) | Package type wireless temperature measuring device for medium voltage circuit breaker | |
| CN203166503U (en) | Non-follow current discharge tube module with trip function | |
| CN203616353U (en) | Adhesive type independent high-voltage test wiring device | |
| CN202372564U (en) | Online monitoring device of switch cabinet | |
| CN110441639A (en) | Electrical wiring column integrated-type intelligent electric link net sensor | |
| CN204101621U (en) | A kind of charged display and pick-up unit being applied to 110kV electric system | |
| CN205657002U (en) | CT transformation ratio adjustable vacuum switch | |
| CN208889459U (en) | A kind of voltage transformer for outdoor installation | |
| CN204044216U (en) | Electronic voltage transformer for digitalized power substation | |
| CN203039239U (en) | Fuse insulating cylinder for solid insulating ring main unit |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 1103-1, 11th Floor, Building 1, Aoqiang Building, No. 6 Xiyuan Fifth Road, Sandun Town, Xihu District, Hangzhou City, Zhejiang Province, 310030 Patentee after: Zhejiang Nande Electric Group Co.,Ltd. Address before: Room 501, Building 3, No. 8 Xiyuan Road, Xihu District, Hangzhou City, Zhejiang Province, 310000 Patentee before: ZHEJIANG NANDA ELECTRICAL Co.,Ltd. |
|
| CP03 | Change of name, title or address |