CN101841159A - Split-phase compensation self-healing type reactive compensation capacitor - Google Patents
Split-phase compensation self-healing type reactive compensation capacitor Download PDFInfo
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- CN101841159A CN101841159A CN 201010190846 CN201010190846A CN101841159A CN 101841159 A CN101841159 A CN 101841159A CN 201010190846 CN201010190846 CN 201010190846 CN 201010190846 A CN201010190846 A CN 201010190846A CN 101841159 A CN101841159 A CN 101841159A
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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
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- 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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Abstract
The invention discloses a split-phase compensation self-healing type reactive compensation capacitor comprising a capacitor shell, four connecting terminals arranged at one end of the capacitor shell, a connecting wire and a metallized thin film, wherein the connecting terminals and the metallized thin film are connected by the connecting wire, potting materials are filled in the capacitor shells, the four connecting terminals comprise three three-phase connecting terminals and one neutral-point connecting terminal, and the connecting mode of the capacitor is in a three-phase and four-wire Y connecting mode; and a plastic base for partitioning power supplies among phases are arranged in the capacitor shell. The invention has double functions of compensation and distribution, is matched with a device to automatically detect the power factor of the load of each phase, then automatically and separately inputs capacitance required for each phase so that the reactive compensation of each phase achieves the optimum state, which has an obvious effect on improving the power factor of a power grid, improving the efficiency of the power grid, reducing line loss, improving voltage quality, reducing electricity consumption,increasing the active capacity of a transformer, reducing distribution cost, saving space and the like.
Description
Technical field
The present invention relates to the electric component technical field, more particularly, relate to a kind of split-phase compensation self-healing type reactive compensation capacitor.
Background technology
The effect that reactive power compensation device is born in the electronic power system is the power factor that improves electrical network, reduce the loss of supply transformer and conveying circuit, improve power supplying efficiency, improve the power supply environment, satisfy the requirement of power network load side voltage levvl and economical operation, so reactive power compensation device is in an indispensable very important position in power supply system.Reasonably select compensation arrangement, reduce the conveying of reactive power, thereby reduce pressure drop, reduce the loss of network to greatest extent, improve power grid quality, and have good economic effect.Otherwise,, may cause the electric power system voltage fluctuation as selecting or improper use.In low-voltage distribution system, because a large amount of existence of load or burden without work such as distribution transformer, low voltage equipment have caused the increase of via net loss, the decline of quality of voltage, thus had a strong impact on the safe and reliable operation of low voltage electric network.The attention of distribution being built along with power supply department and the development of reactive power compensation technology, and power shortages a few days ago, make the application of low-pressure reactive compensation technology in distribution system more and more widely, and in two nets are in recent years transformed, be used as a kind of effective measures of decreasing pressure regulation of falling.
Reactive power compensation mode in present technology is mostly taked three-phase reactive power compensation mode, this mode is to be reference mutually with a certain in the three-phase, compensate, the three phase capacitance reactive power compensation is applicable to the power supply-distribution system of threephase load balance, three characteristics of the middle term loop balance, reactive current is identical in the loop, so when compensation, the signal of regulating the reactive power parameter is taken from arbitrary in the three-phase all can reach requirement mutually, and three-phase switching simultaneously can guarantee the quality of three-phase voltage.But, when the three-phase loop is uneven, it can only guarantee in the three-phase that one is in the The optimal compensation state mutually, does not guarantee other two-phase compensation effect and do not have, and easily causes the situation of mending or owing to mend, make the situation that produces overvoltage or big electric current in the circuit, cause the damage of circuit and equipment, be in operation, when an appearance damage mutually, other two-phase is still in operation, and the as easy as rolling off a log capacitor that causes explodes or damage equipment.
Particularly in civil buildings, because a large amount of uses of China Democratic National Construction Association is single-phase load, causes the serious imbalance of threephase load easily, because the sampled signal of compensating power is taken from arbitrary phase in the three-phase, cause other two-phase or the overcompensation that are not sampled, or undercompensation.If overcompensation, the voltage of then overcompensation phase raises, and causes power consumption equipments such as control, protection component to damage because of overvoltage easily; If undercompensation, the electric current that then compensates phase increases, and equipment such as circuit and circuit breaker are owing to the increase of electric current causes heating to be burnt out.Therefore can not use traditional three-phase reactive power compensation mode.
Summary of the invention
The object of the invention provides a kind of compensation precision height at the deficiencies in the prior art, and power savings is good, is applicable to the split-phase compensation self-healing type reactive compensation capacitor of power department distribution and domestic power grid, realizes the phase-splitting switching compensation of capacitor.
For solving the problems of the technologies described above, construct a kind of split-phase compensation self-healing type reactive compensation capacitor, comprise capacitor casing, be located at binding post, connecting line, the metallized film of capacitor casing one end, connecting line connects binding post and metallized film, in the capacitor shell, be perfused with potting compound, described binding post has four, comprises three three-phase terminal and a neutral point binding post, and the capacitor mode of connection is a three-phase and four-line Y connection formula; In capacitor casing, be provided with the plastic feet that is used to separate alternate power supply.
In the above-mentioned split-phase compensation self-healing type reactive compensation capacitor, on the capacitor shell, be provided with plate in the iron.Between terminal and capacitor shell, establish the silicon particle seal, be provided with cable paper at the capacitor casing middle part.
In the above-mentioned split-phase compensation self-healing type reactive compensation capacitor, described capacitor shell is columniform.
Compared with prior art, the present invention has the following advantages:
1) self-healing low-voltage reactive power compensation capacitor of the present invention adopts cylindrical structural, phase splitting compensation, three-phase and four-line Y connection, metallized film structure can satisfy client's needs widely, and can reduce capacitor volume, reduce production costs, the loss angle of capacitor is little, good electric property, self-healing performance is good, long service life.
2) the present invention has good self-healing performance and phase splitting compensation ability.The disconnected protective device of crimping, instantaneous over-current protection were established in inside.The inner high-quality environmental protection potting compound that injects of capacitor.
3) the present invention has compensation and distribution dual-use function, adapting device detects the power factor of each phase load automatically, and automatic phase-splitting ground drops into each mutually required capacitance, make the reactive power compensation of each phase reach optimum state, to improving power factor of electric network, improve electrical network efficient, reduce line loss, improve quality of voltage, electrical energy saving, the meritorious capacity of increase transformer, reducing distribution cost, conserve space etc. remarkable result is arranged.
Description of drawings
Fig. 1 is the structural representation of self-healing low-voltage reactive power compensation capacitor of the present invention.
Embodiment
As shown in Figure 1, in split-phase compensation self-healing type reactive compensation capacitor, capacitor shell 12 is aluminum hulls that radiating rate is fast, intensive performance is good, and terminal is established at its top, a heat resistant plastice terminal cap 1 is arranged on the terminal, can effectively alternate differentiation be isolated and play the effect of arc protection.Four copper posts 5 are arranged on the terminal, and it can pass through higher electric current, and leading can be functional, and this capacitor adopts the vapour-pressure type protective device, and plate 6 is one of vitals of capacitor protection device in the iron, effectively capacitor for voltage protection and device security.Copper post 5 inserts in the iron in the plate 6, enters in the aluminium shell of capacitor.Copper post 5 is gland lug plate 4 above the plate 6, cubic Luo female 3 and mobility locking Luo silk 2 in iron, and mobility locking Luo silk 2 makes capacitor and external connection obtain excellent contact.Copper post 5 seals below the plate 6 in iron high insulating property, resistant to elevated temperatures silicon particle (7,8), guarantees the favorable sealing property of capacitor; Meson 9 compresses and fixing silicon particle (7,8).Under meson 9 and the silicon particle (7,8) is plastic feet 10; copper post 5 inserts in the plastic feet 10; copper sheet 14 places on the plastic feet 10; plastic feet 10 is fixed copper sheet and is separated alternate power supply; copper sheet 14 is bonded together at high electric current moment copper sheet and copper post below copper post 5, when capacitor when being subjected to overcurrent, superpotential damage for a long time; this butt-joint point then plays the effect of fuse, protection user's equipment.Discharge resistance 11 connects copper sheet 14, and discharge resistance 11 selection resistive performances are good, withstand voltage properties is strong and caloric value is few, and when capacitor discharged, capacitor can be from 500 volts to drop to below 50 volts.
See Fig. 1, establish film in the capacitor bottom and roll axle center 17, be wound with metallized film 15 on the axle center, metallized film 15 is selected the polypropylene metallized film of high-quality, the polypropylene metallized film of high-quality has the advantages that little, the low temperature rise of good electric property, loss angle is waited until, has high-temperature resistant performance, feature that shrinkage is good simultaneously.Connecting line 16 connects metallized film 15, connecting line 16 high temperature resistant and good pressure-resistant performance, long service life.The cable paper 13 of good insulation performance performance also is set in aluminum hull.Capacitor adopts three-phase and four-line Y connection, and its mesochite is provided with neutral point and draws binding post, can realize the phase-splitting switching compensation of capacitor.The embedding thing that fills in the capacitor is a high-quality environmental protection potting compound.The capacitor shell is columniform, makes space that product occupies still less, convenient transportation and packing.
Split-phase compensation self-healing type reactive compensation capacitor of the present invention can be brought into play very big effect for the reactive power compensation of residential electricity consumption net.Because residential electricity consumption consumption at present constantly increases, the use of a large amount of household electrical appliance, special domestic air conditioner, the use of the single-phase electrical equipment of energy-conservation low-power factors such as fluorescent lamp, make three-phase power consumption imbalance, cause the required reactive power compensation of three-phase also inequality, be not suitable for using three-phase apotype reactive power compensator altogether, the present invention adopts the phase splitting compensation form, it is " the star connection neutral point is drawn " formula capacitor, cooperate idle compensating control with three-phase voltage and three-phase current sampling, just the power factor (PF) (or reactive power) of three-phase asymmetric load can be compensated to basically identical, its sampling unit with intelligent phase splitting compensation power distribution equipment adopts the sampling with different phase unit, uses capacitor itself to possess the function of phase splitting compensation.
Capacitor of the present invention is conserve space significantly, reduces the quantity of the capacitor in the circuit, thereby reduces the heat dissipation capacity of capacitor, has reduced the cost of reactive-load compensation equipment and controller switching equipment; Can also use most capacitor in compensation distribution process, to be in non operating state, prolong the useful life of capacitor.If capacitor adopts the realtime power analyzer-controller, then can be at any time the power output situation of each phase of power supply be detected, at any time find situation, at any time compensate, can not cause the situation of mending or owing to mend, make the compensation of each phase reach the The optimal compensation state, improve the power factor of whole electrical network, reduce line loss.
Claims (6)
1. split-phase compensation self-healing type reactive compensation capacitor, comprise capacitor casing (12), the binding post that is located at capacitor casing one end, connecting line (16), metallized film (15), connecting line (16) connects binding post and metallized film (15), in the capacitor shell, be perfused with potting compound, it is characterized in that: described binding post has four, comprise three three-phase terminal and a neutral point binding post, the capacitor mode of connection is a three-phase and four-line Y connection formula; In capacitor casing, be provided with plastic bottom (10) seat that is used to separate alternate power supply.
2. split-phase compensation self-healing type reactive compensation capacitor according to claim 1 is characterized in that: be provided with plate in the iron (6) in capacitor casing.
3. split-phase compensation self-healing type reactive compensation capacitor according to claim 1 is characterized in that: establish seal between terminal and capacitor casing.
4. split-phase compensation self-healing type reactive compensation capacitor according to claim 1 and 2 is characterized in that: described seal is silicon particle (7,8).
5. split-phase compensation self-healing type reactive compensation capacitor according to claim 3 is characterized in that: be provided with cable paper (13) at the capacitor casing middle part.
6. split-phase compensation self-healing type reactive compensation capacitor according to claim 4 is characterized in that: described capacitor casing is columniform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010190846 CN101841159B (en) | 2010-05-29 | 2010-05-29 | Split-phase compensation self-healing type reactive compensation capacitor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010190846 CN101841159B (en) | 2010-05-29 | 2010-05-29 | Split-phase compensation self-healing type reactive compensation capacitor |
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| Publication Number | Publication Date |
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| CN101841159A true CN101841159A (en) | 2010-09-22 |
| CN101841159B CN101841159B (en) | 2013-08-07 |
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| CN 201010190846 Expired - Fee Related CN101841159B (en) | 2010-05-29 | 2010-05-29 | Split-phase compensation self-healing type reactive compensation capacitor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368185A (en) * | 2012-03-31 | 2013-10-23 | 北京博瑞莱智能科技有限公司 | Intelligent electric power capacitor and application method thereof |
| CN103703527A (en) * | 2012-07-27 | 2014-04-02 | Rtr埃内尔希亚有限公司 | Three-phase capacitor formed by two aligned cylinders with overpressure disconnection |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0157940A2 (en) * | 1984-03-23 | 1985-10-16 | Roederstein Spezialfabriken für Bauelemente der Elektronik und Kondensatoren der Starkstromtechnik GmbH | Capacitor structure for use in a fire-prone mine |
| CN2819418Y (en) * | 2005-07-06 | 2006-09-20 | 安徽飞达实业股份有限公司 | Safety environmental-protective explosive-proof capacitor |
| CN201311844Y (en) * | 2008-11-19 | 2009-09-16 | 安徽源光电器有限公司 | Capacitor for ultra-high temperature HID lamp |
| CN201352505Y (en) * | 2008-07-04 | 2009-11-25 | 骆家星 | Metallized film power capacitor |
| CN201656494U (en) * | 2010-05-29 | 2010-11-24 | 佛山市顺德区巨华电力电容器制造有限公司 | Split-phase compensation self-healing low-voltage reactive power compensation condenser |
-
2010
- 2010-05-29 CN CN 201010190846 patent/CN101841159B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0157940A2 (en) * | 1984-03-23 | 1985-10-16 | Roederstein Spezialfabriken für Bauelemente der Elektronik und Kondensatoren der Starkstromtechnik GmbH | Capacitor structure for use in a fire-prone mine |
| CN2819418Y (en) * | 2005-07-06 | 2006-09-20 | 安徽飞达实业股份有限公司 | Safety environmental-protective explosive-proof capacitor |
| CN201352505Y (en) * | 2008-07-04 | 2009-11-25 | 骆家星 | Metallized film power capacitor |
| CN201311844Y (en) * | 2008-11-19 | 2009-09-16 | 安徽源光电器有限公司 | Capacitor for ultra-high temperature HID lamp |
| CN201656494U (en) * | 2010-05-29 | 2010-11-24 | 佛山市顺德区巨华电力电容器制造有限公司 | Split-phase compensation self-healing low-voltage reactive power compensation condenser |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103368185A (en) * | 2012-03-31 | 2013-10-23 | 北京博瑞莱智能科技有限公司 | Intelligent electric power capacitor and application method thereof |
| CN103368185B (en) * | 2012-03-31 | 2016-05-04 | 北京博瑞莱智能科技集团有限公司 | Intelligent electric power capacitor and application process thereof |
| CN103703527A (en) * | 2012-07-27 | 2014-04-02 | Rtr埃内尔希亚有限公司 | Three-phase capacitor formed by two aligned cylinders with overpressure disconnection |
| CN103703527B (en) * | 2012-07-27 | 2017-11-21 | Rtr埃内尔希亚有限公司 | The three-phase capacitor being made up of two alignment cylinders disconnected with overvoltage |
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| CN101841159B (en) | 2013-08-07 |
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Granted publication date: 20130807 Termination date: 20140529 |