CN202444272U - Intelligent low-voltage power capacitor - Google Patents

Intelligent low-voltage power capacitor Download PDF

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Publication number
CN202444272U
CN202444272U CN 201220054419 CN201220054419U CN202444272U CN 202444272 U CN202444272 U CN 202444272U CN 201220054419 CN201220054419 CN 201220054419 CN 201220054419 U CN201220054419 U CN 201220054419U CN 202444272 U CN202444272 U CN 202444272U
Authority
CN
China
Prior art keywords
unit
capacitor
power capacitor
intelligent
control unit
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 - Lifetime
Application number
CN 201220054419
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Chinese (zh)
Inventor
邱世鹏
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.)
HUIZHOU ELECTRIC POWER PROSPECTING DESIGN INSTITUTE CO LTD
Original Assignee
HUIZHOU ELECTRIC POWER PROSPECTING DESIGN INSTITUTE CO LTD
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
Application filed by HUIZHOU ELECTRIC POWER PROSPECTING DESIGN INSTITUTE CO LTD filed Critical HUIZHOU ELECTRIC POWER PROSPECTING DESIGN INSTITUTE CO LTD
Priority to CN 201220054419 priority Critical patent/CN202444272U/en
Application granted granted Critical
Publication of CN202444272U publication Critical patent/CN202444272U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E40/00Technologies for an efficient electrical power generation, transmission or distribution
    • Y02E40/30Reactive power compensation

Abstract

The utility model discloses an intelligent low-voltage power capacitor, comprising an independent monomer shell. The independent monomer shell is internally provided with an intelligent measuring and controlling unit, a capacitor unit, a switching unit and a detecting unit, wherein the detecting unit is used for detecting a working state of the interior of the power capacitor, the capacitor unit is connected with a wire incoming end through a switching unit, a control end of the switching unit is connected with the intelligent measuring and controlling unit, and an output end of the detecting unit is connected with the intelligent measuring and controlling unit. The intelligent low-voltage power capacitor disclosed by the utility model is an independent monomer shell, and can be used through simple connection during mounting, and has the advantage of plug and play; and a signal detected by the detecting unit is transmitted to the intelligent measuring and controlling unit to be processed. The intelligent measuring and controlling unit can effectively analyze a current working state based on a treatment structure, realizes a more-complete fault self-diagnosis function, is beneficial to field maintenance and fault processing work and can also effectively prolong the service lives of the power capacitor and the devices.

Description

Intellectual low voltage power capacitor
Technical field
The utility model belongs to the intelligent power distribution network technology, is specifically related to a kind of intellectual low voltage power capacitor.
Background technology
In recent years, along with the progressively raising of factory automation degree and people's quality of life, more electric equipment constantly is employed popularization; In low-voltage distribution system; Because power consumption equipment constantly increases, make that the reactive current in the electrical network increases, in order to improve the stability of electric power system; Guarantee power supply quality, in the low-voltage distribution system of user side, install special reactive power compensator usually to reduce energy consumption.But traditional reactive-load compensation equipment product structure is complicated, and is bulky, is difficult for standardization, standardization, and product quality is dispersed big, and electricity own decreases big.Node is many more in addition, and the fault point is many more.The low-voltage reactive power controller is the bottleneck of entire equipment reliability, and idle compensating control is the bottleneck of capacitor box reliability.Present idle compensating control can not be realized the protections such as excess temperature, three-phase imbalance, the phase failure and leakage current of capacitor.The three-phase operating current of capacitor, temperature do not detect, and can not realize component fault self-diagnosis functions such as A.C. contactor, electronic switch, capacitor.Technical level to the attendant requires height, and field failure is made a definite diagnosis difficulty, is unfavorable for the fault in-situ fast processing.Component is numerous in the case, can not adopt the connector mounting means, and adopt the direct mode of connection in bulk, in the running, in case the transposing of fault component difficulty after the fault.
The intelligent power distribution net is the developing direction of power distribution network, and the intelligent power distribution net has a development, improves and ripe process simultaneously.Because there are many deficiencies in existing low-voltage reactive power control appliance, therefore solve the upgrading problem that low-voltage reactive power is controlled in the intelligent power distribution net and have urgency, with the wastage reducing and energy saving that promotes power distribution network, improve conveying capacity and improve the quality of power supply.
Summary of the invention
To the problems referred to above, the utility model provide a kind of easy to install, defencive function is perfect, the intellectual low voltage power capacitor of reliable operation, its can promote effectively power distribution network wastage reducing and energy saving, improve conveying capacity and improve the quality of power supply.
The utility model is that the technical scheme that its technical problem of solution is adopted is:
Intellectual low voltage power capacitor; Comprise a monomer housing independently; Be provided with intelligent measurement and control unit, capacitor unit, switch element in the monomer housing and be used to detect power capacitor internal work status detection unit; Capacitor unit is connected with the end of incoming cables through switch element, and the control end of switch element is connected with intelligent measurement and control unit, and the output of detecting unit links to each other with intelligent measurement and control unit.
As preferred embodiment; Said detecting unit comprises and is used to detect the current detection module of each phase current size of power capacitor and the temperature detecting module that is used to detect the capacitor temperature level that the output of current detection module and temperature detecting module is connected with intelligent measurement and control unit respectively.
As preferred embodiment, the utility model comprises communication interface, and said communication interface is connected with intelligent measurement and control unit.
As preferred embodiment, also be serially connected with air switch between switch element and the end of incoming cables, the control end of air switch is connected with intelligent measurement and control unit.
The beneficial effect of the utility model is: the utility model is monomer housing independently, just can use through simple connection during installation, has the advantage of plug and play; Detection to signal deliver in the intelligent measurement and control unit and handle; Intelligent measurement and control unit can analyze present operating state effectively based on process result; Realize ratio fault self-diagnosis function more completely; Help on-site maintenance and troubleshooting work, and can prolong the useful life of power capacitor and equipment effectively.
Description of drawings
Further explain below in conjunction with accompanying drawing and embodiment:
Fig. 1 is the composition frame chart of a kind of embodiment of the utility model.
Embodiment
With reference to Fig. 1; The intellectual low voltage power capacitor of the utility model; Comprise a monomer housing independently, be provided with intelligent measurement and control unit 1, capacitor unit 2, switch element 3 in the monomer housing and be used to detect power capacitor internal work status detection unit 4 that capacitor unit 2 is connected with the end of incoming cables through switch element 3; The control end of switch element 3 is connected with intelligent measurement and control unit 1, and the output of detecting unit 4 links to each other with intelligent measurement and control unit 1.In general embodiment, also be serially connected with air switch 6 between switch element 3 and the end of incoming cables, the control end of air switch 6 is connected with intelligent measurement and control unit 1.The utility model employing under the control of intelligent measurement and control unit can take into account the idle fuzzy control strategy of voltage, idle, power factor, load, improves the speed and the precision of idle control with this, thereby improves the wastage reducing and energy saving effect of idle control.
The utility model is monomer housing independently; Do not need as the idle control appliance of conventional low, to adopt big rack assembling form; The product of this form is applicable to the idle examination occasion of the distribution of electricity consumption enterprise, has the advantage of plug and play, can accessiblely incorporate the intelligent power distribution net.The utility model is provided with detecting unit 4; Detection to signal deliver in the intelligent measurement and control unit and handle; Intelligent measurement and control unit can analyze present operating state effectively based on process result, realizes ratio fault self-diagnosis function more completely.In general embodiment; Detecting unit 4 comprises and is used to detect the current detection module of each phase current size of power capacitor and the temperature detecting module that is used to detect the capacitor temperature level that the output of current detection module and temperature detecting module is connected with intelligent measurement and control unit 1 respectively.Can realize following function based on above-mentioned current detection module with temperature detecting module the utility model: each operating current mutually of capacitor is detected in (1); Judge the capacitor phase failure, three-phase imbalance, overcurrent and serious leakage situation in view of the above; And then realize the phase failure, three-phase imbalance, the overcurrent of capacitor and protection, the alarm of seriously leaking, in time to take measures; Temperature in the body realizes the capacitor over-temperature protection when (2) detecting capacitor work, overvoltage, cross harmonic wave and environment excess temperature situation out of service, prolong capacitor and useful life equipment; (3) according to the numerical value and the variation thereof of each phase operating current of capacitor and distribution voltage, distribution electric current, realize can judging capacitor internal part fault and fault type thereof than fault self-diagnosis function more completely, help field failure and search and handle.
In order to set up the low-voltage reactive power automatic control system better, convenient many capacitors connect, and preferably power capacitor comprises communication interface 5, and said communication interface 5 is connected with intelligent measurement and control unit 1.Many capacitors can produce a main frame automatically when the online building work of communication interface, all the other then are slave; Construction system work, indivedual slave faults withdraw from automatically, do not influence all the other work; Hostdown withdraws from the back automatically and in all the other slaves, produces a new main frame automatically, forms a new system works, carries out switching according to reactive power vacancy; The capacitor that capacity is identical is pressed the switching cycle principle, and the different capacitor of capacity is switching according to value.
The execution mode of the utility model is not restricted to the described embodiments, as long as it reaches the technique effect of the utility model with essentially identical means, all should belong to the protection range of the utility model.

Claims (4)

1. intellectual low voltage power capacitor; It is characterized in that comprising a monomer housing independently; Be provided with intelligent measurement and control unit (1), capacitor unit (2), switch element (3) in the monomer housing and be used to detect power capacitor internal work status detection unit (4); Capacitor unit (2) is connected with the end of incoming cables through switch element (3); The control end of switch element (3) is connected with intelligent measurement and control unit (1), and the output of detecting unit (4) links to each other with intelligent measurement and control unit (1).
2. intellectual low voltage power capacitor according to claim 1; It is characterized in that said detecting unit (4) comprises current detection module that is used to detect each phase current size of power capacitor and the temperature detecting module that is used to detect the capacitor temperature level, the output of current detection module and temperature detecting module is connected with intelligent measurement and control unit (1) respectively.
3. intellectual low voltage power capacitor according to claim 1 is characterized in that comprising communication interface (5), and said communication interface (5) is connected with intelligent measurement and control unit (1).
4. intellectual low voltage power capacitor according to claim 1 is characterized in that also being serially connected with between switch element (3) and the end of incoming cables air switch (6), and the control end of air switch (6) is connected with intelligent measurement and control unit (1).
CN 201220054419 2012-02-20 2012-02-20 Intelligent low-voltage power capacitor Expired - Lifetime CN202444272U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220054419 CN202444272U (en) 2012-02-20 2012-02-20 Intelligent low-voltage power capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220054419 CN202444272U (en) 2012-02-20 2012-02-20 Intelligent low-voltage power capacitor

Publications (1)

Publication Number Publication Date
CN202444272U true CN202444272U (en) 2012-09-19

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Application Number Title Priority Date Filing Date
CN 201220054419 Expired - Lifetime CN202444272U (en) 2012-02-20 2012-02-20 Intelligent low-voltage power capacitor

Country Status (1)

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CN (1) CN202444272U (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106451502A (en) * 2016-11-08 2017-02-22 温州商学院 Three-phase unbalanced treatment device with wireless field temperature warning function and realization method thereof
CN106600034A (en) * 2016-11-08 2017-04-26 温州职业技术学院 Three-phase unbalance governance device having in-situ temperature alarm function and realization method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106451502A (en) * 2016-11-08 2017-02-22 温州商学院 Three-phase unbalanced treatment device with wireless field temperature warning function and realization method thereof
CN106600034A (en) * 2016-11-08 2017-04-26 温州职业技术学院 Three-phase unbalance governance device having in-situ temperature alarm function and realization method thereof

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CX01 Expiry of patent term

Granted publication date: 20120919

CX01 Expiry of patent term