CN200941548Y - Low voltage power capacitor combined appliance having internal temp protection of capacitor - Google Patents
Low voltage power capacitor combined appliance having internal temp protection of capacitor Download PDFInfo
- Publication number
- CN200941548Y CN200941548Y CNU2006200760227U CN200620076022U CN200941548Y CN 200941548 Y CN200941548 Y CN 200941548Y CN U2006200760227 U CNU2006200760227 U CN U2006200760227U CN 200620076022 U CN200620076022 U CN 200620076022U CN 200941548 Y CN200941548 Y CN 200941548Y
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- China
- Prior art keywords
- voltage power
- capacitor
- temperature
- contactor
- low
- 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.)
- Expired - Fee Related
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Classifications
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
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- Emergency Protection Circuit Devices (AREA)
Abstract
The utility model discloses a low voltage power capacitance combination electric apparatus with capacitor body temperature protection, comprising an integrated electric apparatus body. The integrated electric apparatus comprises at least one low voltage power capacitor, characterized in that a temperature apparatus is arranged in the low voltage power capacitor, at least one contactor is arranged in the body of the integrated electric apparatus, output of the temperature apparatus is connected in series to the coil loop of the contactor. The benefic effect is brief and novel structure, good performance, small volume, low cost and convenient operation and maintenance, which is expediently applied in all kinds of low voltage inactive compensation device.
Description
Technical field:
The utility model relates to for the low-pressure reactive compensation equipment in the distribution technique field; it is a kind of low-voltage power and capacitance combined electrical appliance; specifically; be a kind ofly to comprise low voltage power capacitor and can control the device for switching of its work and guarantee the integrated electric appliances that the protection electrical equipment of electrical safety is formed that protection electrical equipment has temperature protection function in the low voltage power capacitor body.
Background technology:
Temperature can reflect the suffered overvoltage of low voltage power capacitor more exactly, cross situations such as harmonic wave, environment excess temperature and loss own be excessive in the body of low voltage power capacitor; the interior temperature protection function of capacitor body is set will guarantee the security of operation of low voltage power capacitor effectively, prolong its useful life.But existing low-voltage power and capacitance combined electrical appliance does not generally have temperature protection function in the capacitor body, and adopts the overcurrent protection based on heating effect of current, has shortcomings such as protection weak effect, power consumption are big, cost height.
Summary of the invention:
The purpose of this utility model provides that a kind of performance is good, novel structure, volume is little, power consumption is little, price is low, operation maintenance has temperature protection in the capacitor body easily low-voltage power and capacitance combined electrical appliance.
Technical solution of the present utility model is: a kind of low-voltage power and capacitance combined electrical appliance with temperature protection in the capacitor body; the integrated electric appliances body is arranged; at least one low voltage power capacitor arranged in the integrated electric appliances body; it is characterized in that: the temperature device is installed in the low voltage power capacitor body; at least one contactor arranged in the integrated electric appliances body, and the output of temperature device seals in the wire loop of contactor.
Temperature device described in the utility model adopts temperature relay or temperature sensor.Temperature sensor output jointing temp comparator, temperature comparator output seals in the wire loop of contactor.The leading-out terminal of contactor is connected with the terminals of low voltage power capacitor.Contactor every has major and minor two pairs of contacts, the auxiliary contact back of connecting with resistance in parallel with main contacts mutually, and auxiliary contact discharges in main contact behind the auxiliary contact during release prior to the main contact adhesive during adhesive.The end of incoming cables and the miniature circuit breaker of contactor join, the overcurrent protection tripping operation structure that every phase loop of miniature circuit breaker is made up of the series connection bimetal leaf and cut by the electric current speed that series coil is formed and to protect the structure that trips.Low voltage power capacitor is at least one " △ " type (phase three-wire three) low voltage power capacitor.The output of temperature device directly or indirectly seals in the wire loop of contactor.
The beneficial effects of the utility model are: novelty simple for structure, performance is good, volume is little, power consumption is little, price is low, be convenient to operation maintenance, can be used in various low-voltage reactive compensator capables easily.
Description of drawings:
Fig. 1 is a kind of structural representation with low-voltage power and capacitance combined electrical appliance of temperature protection in the capacitor body of the present utility model;
Fig. 2 has the structural representation of the low voltage power capacitor combined electrical apparatus of temperature protection in the capacitor body for another kind of the present utility model.
Embodiment:
Fig. 1 has described an embodiment of the present utility model, in this embodiment, a low voltage power capacitor is arranged.Temperature relay is installed in capacitor body, and the output of temperature relay seals in the wire loop of contactor, and the leading-out terminal of contactor is connected with the terminals of low voltage power capacitor.Contactor every has major and minor two pairs of contacts, the auxiliary contact back of connecting with resistance in parallel with main contacts mutually, and auxiliary contact discharges in main contacts behind the auxiliary contact during release prior to the main contacts adhesive during adhesive.The end of incoming cables and the miniature circuit breaker of contactor join, the overcurrent protection tripping operation structure that every phase loop of miniature circuit breaker is made up of the series connection bimetal leaf and cut by the electric current speed that series coil is formed and to protect the structure that trips.Low voltage power capacitor is " △ " type (phase three-wire three) low voltage power capacitor.The output of temperature device directly or indirectly seals in the wire loop of contactor.
In the drawings: QF---miniature circuit breaker; KM---contactor; C---low voltage power capacitor; KT---used HG4158 type micro-temperature relay in the temperature relay, this example; Four are combined into an integral body, a kind of electrical equipment.
Operation principle is as follows:
1) realization of " open and close machine " function
Manual operation QF promptly starts shooting its " combined floodgate ", and its " separating brake " promptly shut down.
2) realization of switching low-voltage electric power capacitor function
The QF that closes passes through X
1, X
2Make the coil electricity of KM, the secondary contact J of KM
1', J
2' connect earlier, because the effect of R reduces to shove, then the main contact J of KM
1, J
1Connect, by running current, C puts into operation; If make the coil blackout of KM, the main contact J of KA then
1, J
2Disconnect earlier, then the secondary contact J of KM
1', J
2' disconnect C
1The excision power supply, out of service, because the effect of R, what reduced to produce in the excision process shoves.
3) realization of defencive function
Electric current speed is cut protection and is realized by QF, and electric current reaches speed when cutting definite value among the QF, and the suction of solenoid makes the QF tripping operation, thereby the low voltage power capacitor that puts into operation is protected;
Overcurrent protection is realized that by QF overcurrent reaches definite value, and bi-metal plate deformed makes QF dropout tripping operation among the QF, thereby the low voltage power capacitor that puts into operation is protected;
Over-temperature protection: realize by KT and KM, when low voltage power capacitor is worked, because of overvoltage, cross reasons such as harmonic wave, environment excess temperature and loss own be excessive, cause heating, when reaching definite value, the KT contact disconnects, the contactor coil outage, contacts of contactor disconnects, and the low voltage power capacitor that puts into operation moves back fortune and is protected; Low voltage power capacitor moves back fortune back temperature and descends, and is lower than when resetting definite value KT junction closure, contacts of contactor closure, the low voltage power capacitor that the moves back fortune work that puts into operation.
Fig. 2 has described another embodiment of the present utility model, and two low voltage power capacitors are wherein arranged.Therefore operation principle and shown in Figure 1 basic identical is omitted and is described.
Claims (8)
1, a kind of low-voltage power and capacitance combined electrical appliance with temperature protection in the capacitor body; the integrated electric appliances body is arranged; at least one low voltage power capacitor arranged in the integrated electric appliances body; it is characterized in that: the temperature device is installed in the low voltage power capacitor body; at least one contactor arranged in the integrated electric appliances body, and the output of temperature device seals in the wire loop of contactor.
2, the low-voltage power and capacitance combined electrical appliance with temperature protection in the capacitor body according to claim 1, it is characterized in that: the temperature device adopts temperature relay or temperature sensor.
3, the low-voltage power and capacitance combined electrical appliance with temperature protection in the capacitor body according to claim 2 is characterized in that: temperature sensor output jointing temp comparator, temperature comparator output seals in the wire loop of contactor.
4, according to claim 1,2 or 3 described low-voltage power and capacitance combined electrical appliances with temperature protection in the capacitor body, it is characterized in that: the leading-out terminal of contactor is connected with the terminals of low voltage power capacitor.
5, according to claim 1,2 or 3 described low-voltage power and capacitance combined electrical appliances with temperature protection in the capacitor body; it is characterized in that: contactor every has major and minor two pairs of contacts mutually; it is in parallel after auxiliary contact is connected with resistance with main contacts; auxiliary contact discharges in main contact behind the auxiliary contact during release prior to the main contact adhesive during adhesive.
6, according to claim 1,2 or 3 described low-voltage power and capacitance combined electrical appliances with temperature protection in the capacitor body; it is characterized in that: the end of incoming cables and the miniature circuit breaker of contactor join, the overcurrent protection tripping operation structure that every phase loop of miniature circuit breaker is made up of the series connection bimetal leaf and cut by the electric current speed that series coil is formed and to protect the structure that trips.
7, according to claim 1,2 or 3 described low-voltage power and capacitance combined electrical appliances with temperature protection in the capacitor body, it is characterized in that: low voltage power capacitor is at least one " △ " Type Low Voltage Power Capacitor.
8, according to claim 1,2 or 3 described low-voltage power and capacitance combined electrical appliances with temperature protection in the capacitor body, it is characterized in that: the output of temperature device directly or indirectly seals in the wire loop of contactor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200760227U CN200941548Y (en) | 2006-07-28 | 2006-07-28 | Low voltage power capacitor combined appliance having internal temp protection of capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006200760227U CN200941548Y (en) | 2006-07-28 | 2006-07-28 | Low voltage power capacitor combined appliance having internal temp protection of capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200941548Y true CN200941548Y (en) | 2007-08-29 |
Family
ID=38747723
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006200760227U Expired - Fee Related CN200941548Y (en) | 2006-07-28 | 2006-07-28 | Low voltage power capacitor combined appliance having internal temp protection of capacitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200941548Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110733A (en) * | 2016-11-25 | 2018-06-01 | 上海千槐电气有限公司 | The temperature protective device of low voltage power capacitor |
| CN110808574A (en) * | 2019-10-08 | 2020-02-18 | 联合汽车电子有限公司 | Protection method and protection system of filter capacitor and motor controller |
-
2006
- 2006-07-28 CN CNU2006200760227U patent/CN200941548Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110733A (en) * | 2016-11-25 | 2018-06-01 | 上海千槐电气有限公司 | The temperature protective device of low voltage power capacitor |
| CN110808574A (en) * | 2019-10-08 | 2020-02-18 | 联合汽车电子有限公司 | Protection method and protection system of filter capacitor and motor controller |
| CN110808574B (en) * | 2019-10-08 | 2022-09-06 | 联合汽车电子有限公司 | Protection method and protection system of filter capacitor and motor controller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JIANGSU MODERN ELECTRIC TECHNOLOGY CO., LTD. Free format text: FORMER NAME: XIANDAI ELECTRIC POWER CAPACITORS CO., LTD., JIANGSU |
|
| CP03 | Change of name, title or address |
Address after: 226005 Nantong City, Jiangsu Province modern power road, No. 1 Patentee after: JIANGSU MODERN POWER CAPACITOR CO., LTD. Address before: 226005 No. 395 Renmin West Road, Jiangsu, Nantong Patentee before: Jiangsu TDS Capacitor Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070829 Termination date: 20150728 |
|
| EXPY | Termination of patent right or utility model |