CN205283144U - Grain flax processing power supply system's restraining resonance device - Google Patents
Grain flax processing power supply system's restraining resonance device Download PDFInfo
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- CN205283144U CN205283144U CN201520948768.1U CN201520948768U CN205283144U CN 205283144 U CN205283144 U CN 205283144U CN 201520948768 U CN201520948768 U CN 201520948768U CN 205283144 U CN205283144 U CN 205283144U
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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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Abstract
The utility model relates to a grain flax processing power supply system's restraining resonance device, interchange three -phase 400V generating line including grain flax processing power supply system, exchange three -phase 400V generating line each go up the parallelly connected a set of lead -acid battery that has mutually, be provided with an electrolytic capacitor C1 between lead -acid battery's positive pole and the live wire, be provided with a ceramic capacitor C2 between lead -acid battery's negative pole and the zero line, set gradually a fuse and exchanged the two poles of the earth air switch between electrolytic capacitor C1 and the live wire, set gradually a fuse and exchanged the two poles of the earth air switch between ceramic capacitor C2 and the earth connection. The utility model discloses can effectively reduce the risk of the emergence of grain agricultural product processing enterprises dust explosion accident.
Description
Technical field
The utility model relates to grain flax machining power supply system field, particularly the suppression resonance device of a kind of grain flax processing power supply system.
Background technology
Have both at home and abroad and grain processing of farm products enterprise dust explosion accident occurs. During 24 days 16 February in 2010 12 points, there is blast accident in Li Hua starch limited-liability company starch four workshop, Funing, Qinhuangdao, cause 19 people's death, 49 people injured (heavier 8 people of the condition of the injury), from technical Analysis, investigation and inquiring situation, cause of accident may be owing to the operation pipeline dust that sieves is revealed in a large number, forms dust atmosphere; Add that production plant does not use explosion-proof production apparatus, because friction produces spark in operating process, cause blast. Starch is kicked up again by the shockwave once formed after blast, again defines two times, three times or even repeatedly fire after arriving certain concentration. The flax dust explosion accident of harbin linen factory in 1987, dead 58 people, weight hinders 177 people,Direct economic loss8820000 yuan. First current blast then feeds through to other from a dust filter, and full factory 17 dust filters are almost all ruined. These dust filters, collect dirt bucket mostly centralized arrangement in a Room, wherein 13 cover dust filters collection dirt buckets be arranged in vault. These equipment rooms are all without separation. Only No. 3 dust filters are because having wall to separate with other equipment, just exempted from misfortune. The very easily long-pending ash of bag formula dust filter and distance excessively close be the cause of this time blast, but the expansion of accident and have accumulated a large amount of energy about the material such as dust and flax and be in the state being triggered at any moment and have some relations; Developed rapidly so repeatedly firing.
Agricultural-food majority is the carbohydrate containing nitrogen-atoms, if distribution network occurs the resonance meeting direct heating of hydrogen atom and carbon atom in agricultural-food; If there is Sauerstoffatom and nitrogen-atoms resonance, heat is applied in atmosphere by the ground of meeting considerable part, and the heat that agricultural-food absorb can reduction relatively. If bag formula dust filter uses a high-frequency DC pulse electromagnetic field to collect dust, can on fire blast easier than other fly-ash separator; Because electrostatic can be adsorbed on the dust of easy band electric charge and in cloth bag without place's release, and in cloth bag, dust Relatively centralized and heat not easily distribute and cause the accumulative of energy. Particle collector all can significantly improve according to metal vessel and the earthing of casing, Electro-static Driven Comb and heat release effect; Certainly, this must be based upon " water reservoir " that ground net must have absorption of electromagnetic energy. Certainly, the high-frequency DC pulse power is made the electromagnetic field emissions device in change of frequency direction change (the positive and negative change of voltage), it is possible to a certain degree alleviate this problem. But, electric pulse being applied directly to and the dust very easily carbonized still compares dangerous, the possibility of blast still exists. Adopt the equipment (such as hulling machine) of transducer drive also can produce electric pulse electromagnetic field, it may also be useful to time should the finished product temperature of quantitative check apparatus processing outlet, if temperature should shut down cooling higher than certain dangerous numerical value. Use frequency transformer had better be reduced. The direct-current transmission equipment considered in current electrical network can produce electric pulse electromagnetic field, and can penetrate in the Domestic distribution system of low-tension side 400V. Even if in the place not having high voltage DC power transmission converter station, the switching tube on motor-car or high ferro locomotive also can produce electric pulse electromagnetic field, and can penetrate into equally in the Domestic distribution system of low-tension side 400V. So, even if the electrical equipment of factory can not produce the electromagnetic field of electric pulse, in the electromagnetic field that combustible and explosive area also must suitably isolate the electric pulse from electrical network to ensure safety in production.
The processing of farm products such as grain and flax enterprise majority is the various dispersion of mini electrical equipment quantity and the Workplace piling up a large amount of agricultural-food raw material, and local resonance easily occurs; And enterprise is in the end of distribution network ownly, power supply circuit itself possesses certain reactance value. Now should to be installed in the outlet of each power load effect better for series reactance device, and the model of reactor can select tri-phase iron core reactor, single-phase iron core reactor and single-phase magnetic ferrites magnetic core reactor. In the lighter part of dust, for single-phase power load, a reactor of all can only connecting, selects single-phase magnetic ferrites magnetic core reactor or single-phase iron core reactor. For most three-phase motor load, a general series connection dry type tri-phase iron core reactor; Also three single-phase iron core reactors or three single-phase magnetic ferrites magnetic core reactors can be selected. Need guard key part, such as the electric consumption on lighting of dust concentration zones, it should connect two reactors, can connect for single-phase load a single-phase iron core reactor and single-phase magnetic ferrites magnetic core reactors simultaneously. For motor or the electric precipitation high-frequency DC pulse power supply power supply of the three-phase motor load of dust concentration zones, especially inverter supply, after a series connection dry type tri-phase iron core reactor, a single-phase magnetic ferrites magnetic core reactor of connecting again in each phase.
Whether empty core or iron core series reactance device are may be not obvious to the inhibition of the GHz order of magnitude and the resonance of above frequency, not only likely penetrate between circle, pass through it is even possible that part strides across reactor from air. The beginning of this year was once mentioned when applying for " a kind of circuit adopting store battery throwing to cut suppression Domestic distribution system electromagnetism resonance " utility model patent: owing to microwave oven principle mainly utilizes the resonant frequency of hydrogen atom, and containing a large amount of hydrogen ion in lead acid cell electrolyte inside; So the access of store battery in parallel can effectively suppress the microwave oven effect in distribution, certainly the electromagnetism resonance that frequency is lower also there is certain restraining effect. Battery terminal adopts stereotype, has the effect of absorbing radiation ripple well, and therefore secondary battery has the effect suppressing radiation resonance simultaneously. In the less grain of scale and flax source mill or district less compared with the dust of large enterprises, in each phase of lead-acid batteries both sides in parallel access 400V bus in parallel after electrolytic condenser and ceramic condenser are isolated, it should the effect of good suppression pyrogenic effect can be played. But, the resonance of carbon atom this how to suppress? although the resonance not having hydrogen atom is so serious, should consider compared with multi-region at bigger grain, flax processing enterprise or dust. The negative pole of current electric automobile lithium battery is generally most uses graphite or carbon as negative pole, and the major ingredient of graphite is also carbon; So adopting the resonance that can suppress carbon atom in each phase of lithium cell both sides access 400V bus in parallel after electrical condenser is isolated. The organic solvent in electrolytic solution in lithium cell is hydrocarbon polymer, not only the resonance of carbon atom is had good inhibition, and the resonance of hydrogen atom is also had certain restraining effect. Consider that the price of lithium cell is higher, make wave filter with not configuring comparatively large capacity separately, it is not used for filtering too many frequency signal, so hot side blocking capacitor does not adopt electrolytic condenser; Selecting the electrical condenser of the organic compound medium such as oil-paper, terylene, a guarantee section radio-frequency signal has good conduction. Neutral side can adopt the ceramic condenser of carbide-containing.
The processing of farm products such as grain and flax enterprise majority is small small business, and Shunt Capacitor Unit reactive-load compensation device is generally arranged on 400V bus. If harmonic wave is little in factory, Shunt Capacitor Unit is generally not according to filter designs. If using iron core reactor current limliting, itself there is the effect of absorbing high-frequency electric pulse electric current. If originally having employed single-phase air-core reactor to carry out current limliting, now at the other resistor in parallel of air-core reactor, the effect absorbing electric pulse electric current should can be played equally; But now should adjust the need of the capacity suitably increasing Capacitor banks. If bank of filters, some groups of single tuned filters should be selected to be transformed into Hi-pass filter. If the series connection tuning reactor of single tuned filter itself uses iron core reactor (available tri-phase iron core reactor), then do not need to change. If originally having employed single-phase air-core reactor to carry out current limliting, being equally at the other resistor in parallel of air-core reactor, the effect absorbing electric pulse electric current can be played equally. Now still should adjust the need of the capacity suitably increasing Capacitor banks.
Grain flax machining power supply system suppresses harmonic technology method to divide the following steps: 1) dust-removal system should as far as possible few with or collect dust without high-frequency DC pulse electromagnetic field, if must with just making change of frequency and the electromagnetic field emissions device in direction change (the positive and negative change of voltage) by the high-frequency DC pulse power. To reduce the degree of heat collecting dust. 2) in the less grain of scale and flax source mill or district less compared with the dust of large enterprises, one group of lead-acid batteries in parallel in each phase of AC three-phase 400V bus. Through electrolytic condenser isolation between positive pole and live wire, isolate through ceramic condenser between negative pole and zero line. 3) in larger grain and flax source mill, first one group of lead-acid batteries in parallel in each phase of AC three-phase 400V bus; Through electrolytic condenser isolation between positive pole and live wire, isolate through ceramic condenser between negative pole and zero line. One group of Li-ion batteries piles in parallel in each phase of AC three-phase 400V bus simultaneously; Isolate through the electrical condenser of the organic compound medium such as oil-paper, terylene between positive pole and live wire, isolate through the ceramic condenser of silicon carbide-containing between negative pole and zero line. 4) in the not too serious part of dust, for the single-phase power load of majority, a reactor of all can only connecting, selects single-phase magnetic ferrites magnetic core reactor or single-phase iron core reactor. For most three-phase motor load, a general series connection dry type tri-phase iron core reactor; But the model of series reactance device can also be wherein a kind of in the selection of tri-phase iron core reactor, three single-phase iron core reactors or three single-phase magnetic ferrites magnetic core reactors. 5) need guard key part, such as the electric consumption on lighting of dust concentration zones, it should connect two reactors, can connect for single-phase load a single-phase iron core reactor and single-phase magnetic ferrites magnetic core reactors simultaneously. For motor or the electric precipitation high-frequency DC pulse power supply power supply of the three-phase motor load of dust concentration zones, especially inverter supply, after a series connection dry type tri-phase iron core reactor, a single-phase magnetic ferrites magnetic core reactor of connecting again in each phase. 6) if 400V Shunt Capacitor Unit employs single-phase air-core reactor carries out current limliting, now should at the other resistor in parallel of air-core reactor, it is possible to play the effect absorbing electric pulse electric current. What this technological line provided that four groups of Shunt Capacitor Unit all need to carry out to switch sets up the other resistors in parallel scheme of air-core reactor. In field engineering, secondary battery should be placed on the ground being covered with insulating mat, and be arranged on low layer as far as possible and do not have on the ground of reinforcing bar or ground net; Relevant technical regulation requires that the insulation resistance of store battery is not less than 200k �� (when there is ground net underground, this regulation is meaningful), it is proposed that the electrical condenser of access zero line uses AC capacitor to isolate, and is greater than 200k �� by 500V direct current resistance and considers. The electrical condenser of access live wire uses electrolytic condenser (generally direct current resistance is less), if can not be claimed by the direct current resistance of electrolytic condenser without leakage electric current. Improve, with lower investment and less Equipments Setting, reliability and the stability that power distribution system is run, the collection of energy lost in the past is returned the power supplying efficiency of distribution network to improve, be of value to the life-span extending electrical equipment simultaneously. Reduce thermal losses that the circuit resonance that often occurs of grain flax machining power distribution system causes preferably and it is in hot dust and the sudden risk lighting blast easily occurs.
Summary of the invention
In view of this, the purpose of this utility model is to provide the suppression resonance device of a kind of grain flax processing power supply system, it is possible to effectively prevent the generation of grain processing of farm products enterprise dust explosion accident.
The utility model adopts following scheme to realize: the suppression resonance device of a kind of grain flax processing power supply system, comprise the AC three-phase 400V bus of grain flax processing power supply system, each phase of described AC three-phase 400V bus is parallel with one group of lead-acid batteries, it is provided with an electrolytic condenser C1 between the positive pole of described lead-acid batteries and live wire, between the negative pole of described lead-acid batteries and zero line, it is provided with a ceramic condenser C2; It is disposed with a fuse between described electrolytic condenser C1 and live wire and exchanges the two poles of the earth air switch, be disposed with a fuse between described ceramic condenser C2 and grounding wire and exchange the two poles of the earth air switch.
Further, also comprise three groups of Li-ion batteries piles, described three groups of Li-ion batteries piles are connected in parallel in each phase of described AC three-phase 400V bus, be provided with electrical condenser C3 between the positive pole of described Li-ion batteries piles and live wire, described Li-ion batteries piles negative pole and zero line between be provided with ceramic condenser C4; It is disposed with a fuse between described electrical condenser C3 and live wire and exchanges the two poles of the earth air switch, be disposed with a fuse between described ceramic condenser C4 and grounding wire and exchange the two poles of the earth air switch.
Present invention also offers following scheme: the suppression resonance device of a kind of grain flax processing power supply system, comprise the AC three-phase 400V segmentation load bus of grain flax processing power supply system, connect a reactor in the power supply side of described AC three-phase 400V load branch circuit, single-phase load adopts single-phase reactor, and three-phase load selects reactor model as required. Alternating current air switch it is provided with between reactor and bus.
Further, two reactors of connecting in the power supply side of the load branch circuit of the AC three-phase 400V segmentation load bus of power supply system, the model of reactor is selected according to the particular case of load.
Present invention also offers following scheme: the suppression resonance device of a kind of grain flax processing power supply system, comprise the AC three-phase 400V bus of grain flax processing power supply system, described AC three-phase 400V bus place arranges compensation capacitors band current limliting air-core reactor, described current limliting air-core reactor sets up resistors in parallel, in order to absorb electric pulse electric current; It is provided with compensation capacitors between described current-limiting reactor and N, between described current-limiting reactor and AC three-phase 400V bus, it is provided with fuse.
The utility model is applicable to the humorous vibration means of suppression of grain flax machining three-phase alternating current 400V power supply system, it is possible to effectively prevent the generation of grain processing of farm products enterprise dust explosion accident.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the utility model embodiment 1.
Fig. 2 is the circuit diagram of the utility model embodiment 2.
Fig. 3 is the circuit diagram of the utility model embodiment 3.
Fig. 4 is the circuit diagram of the utility model embodiment 4.
Fig. 5 is the circuit diagram of the utility model embodiment 5.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described further.
Embodiment 1.
As shown in Figure 1, present embodiments provide the suppression resonance device of a kind of grain flax processing power supply system, comprise the AC three-phase 400V bus of grain flax processing power supply system, each phase of described AC three-phase 400V bus is parallel with one group of lead-acid batteries, it is provided with an electrolytic condenser C1 between the positive pole of described lead-acid batteries and live wire, between the negative pole of described lead-acid batteries and zero line, it is provided with a ceramic condenser C2; It is disposed with a fuse between described electrolytic condenser C1 and live wire and exchanges the two poles of the earth air switch, be disposed with a fuse between described ceramic condenser C2 and grounding wire and exchange the two poles of the earth air switch.
In the present embodiment, Fig. 1 represents that scale less grain flax machining enterprise or the less district of dust one group of lead-acid batteries in parallel in each phase of AC three-phase 400V bus suppresses the electric hookup of hydrogen atom resonance. Isolate through electrolytic condenser C1 between positive pole and live wire, isolate through ceramic condenser C2 between negative pole and zero line. KK1 selects exchange the two poles of the earth air switch, and fuse F1, F2 are connected on after sky opens the two poles of the earth respectively.
Embodiment 2.
The present embodiment also comprises three groups of Li-ion batteries piles on the basis of embodiment 1, described three groups of Li-ion batteries piles are connected in parallel in each phase of described AC three-phase 400V bus, be provided with electrical condenser C3 between the positive pole of described Li-ion batteries piles and live wire, described Li-ion batteries piles negative pole and zero line between be provided with ceramic condenser C4; It is disposed with a fuse between described electrical condenser C3 and live wire and exchanges the two poles of the earth air switch, be disposed with a fuse between described ceramic condenser C4 and grounding wire and exchange the two poles of the earth air switch.
In the present embodiment, Fig. 2 represents in larger grain and flax source mill or dust relatively multi-region, one group of lead-acid batteries in parallel in each phase of AC three-phase 400V bus; Isolate through electrolytic condenser C1 between positive pole and live wire, isolate through ceramic condenser C2 between negative pole and zero line. One group of Li-ion batteries piles in parallel in each phase of AC three-phase 400V bus simultaneously; Isolate through the electrical condenser C3 of the organic compound medium such as oil-paper, terylene between positive pole and live wire, isolate through the ceramic condenser C4 of silicon carbide-containing between negative pole and zero line. KK1 with KK2 all selects and exchanges the two poles of the earth air switch, and fuse F1, F2 are connected on after KK1 sky opens the two poles of the earth respectively; Fuse F3, F4 are connected on after KK2 sky opens the two poles of the earth respectively.
Embodiment 3.
Present embodiments provide the suppression resonance device of a kind of grain flax processing power supply system, comprise the AC three-phase 400V segmentation load bus of grain flax processing power supply system, on the described each load branch circuit of AC three-phase 400V, a series connection reactor, is provided with one between described dry type tri-phase iron core reactor and bus and exchanges the two poles of the earth air switch.
In the present embodiment, Fig. 3 represents that a reactor of connecting in the power supply side of exchange 400V load suppresses the electric hookup of resonance. In the not too serious part of dust, for the single-phase power load of majority, a reactor of all can only connecting, selects single-phase magnetic ferrites magnetic core reactor or single-phase iron core reactor. For most three-phase motor load, a general series connection dry type tri-phase iron core reactor; But the model of series reactance device can also be wherein a kind of in the selection of tri-phase iron core reactor, three single-phase iron core reactors or three single-phase magnetic ferrites magnetic core reactors.
Embodiment 4.
The present embodiment also includes a series connection reactor on the basis of embodiment 3.
In the present embodiment, Fig. 4 represents that two reactors of connecting in the power supply side of exchange 400V load suppress the electric hookup of resonance. In needs guard key part, such as electric consumption on lighting and other load of dust concentration zones, it should connect two reactors, can connect for single-phase load a single-phase iron core reactor and single-phase magnetic ferrites magnetic core reactors simultaneously. For motor or the electric precipitation high-frequency DC pulse power supply power supply of the three-phase motor load of dust concentration zones, especially inverter supply, after a series connection dry type tri-phase iron core reactor, a single-phase magnetic ferrites magnetic core reactor of connecting again in each phase.
Embodiment 5.
Present embodiments provide the suppression resonance device of a kind of grain flax processing power supply system, comprise the AC three-phase 400V bus of grain flax processing power supply system, described AC three-phase 400V bus place is provided with current-limiting reactor, described current-limiting reactor is parallel with resistor, in order to absorb electric pulse electric current; It is provided with electric capacity between described current-limiting reactor and grounding wire, between described current-limiting reactor and AC three-phase 400V bus, it is provided with fuse.
In the present embodiment, Fig. 5 represents the wherein phase electric hookup setting up resistors in parallel on three-phase alternating current 400V compensation capacitors current limliting air-core reactor. If exchange 400V Shunt Capacitor Unit employs single-phase air-core reactor and carries out current limliting, now should at the other resistor in parallel of air-core reactor, it is possible to play the effect absorbing electric pulse electric current. This technological line provides the scheme of R4: in C1, C2, C3, C4 tetra-groups of Shunt Capacitor Unit, resistors in parallel R1 on first group of current limliting air-core reactor CK1 current limliting air-core reactor; Resistors in parallel R2 on 2nd group of current limliting air-core reactor CK2; Resistors in parallel R3 on 3rd group of current limliting air-core reactor CK3; 4th group of current limliting air-core reactor CK4 resistors in parallel. KK1, KK2, KK3, KK4 tetra-automatic air-break switches and master switch isolating switch are controlled by power factor controller, and F1, F2, F3, F4 are respectively a fuse of four group capacitor groups.
In the above-described embodiments, first, it is necessary to the alternating-current impedance parameter of the load measure grain flax machining three-phase alternating current 400V distribution network alternating-current impedance, also having part seldom to run. The selection of reactor parameter should consider good wave arrestment effect, considers new tuning-points do not occur again. Less than 20% control of reactive compensation capacity is pressed in the selection of the blocking capacitor of Shunt Capacitor Unit branch road, does not substantially affect idle balance.
In the above-described embodiments, in addition it is also necessary to measure the test of alternating-current impedance frequency variation curve. When voltage of alternating current amplitude is constant, change AC-testing supply frequency, with the voltage of the tested device under the different frequency of apparatus measures or load, current value, can directly carry out calculating statistics and generate various curve and data form. If AC-testing supply and surveying instrument have program control and data-transformation facility, carry out sweep measurement by microcomputer control. Accumulator battery voltage under different frequency, current value test data are transferred to computer by test apparatus automatically, carry out calculating after data processing impedance value through computer, impedance data under different tests supply frequency is added up, generates various curve and data form.
In the above-described embodiments, in addition it is also necessary to carry out the test of alternating-current impedance voltage change curve. When alternating current voltage frequency is constant, change AC-testing supply voltage magnitude, measure the voltage with the tested device under frequency or load, current value, can directly carry out calculating statistics and generate various curve and data form. If AC-testing supply and surveying instrument have program control and data-transformation facility, undertaken changing voltage measurement by microcomputer control. Accumulator battery voltage under different electrical power voltage, current value test data are transferred to computer by test apparatus automatically, carry out calculating after data processing impedance value through computer, impedance data under different tests voltage of supply is added up, generates various curve and data form.
In the above-described embodiments, in addition it is also necessary to the ac impedance characteristic curve test changed in time. The alternating-current impedance frequency variation curve that different time is measured is carried out statistical summaries, generates and gather curve. Directly to compare alternating-current impedance process over time, raw data is intuitively changed. The alternating-current impedance voltage change curve that different time is measured is carried out statistical summaries, generates and gather curve. Directly to compare alternating-current impedance process over time, raw data is intuitively changed. The test data at the noon under the irradiation of the torridity summer big sun is with test data should be different after midnight.
In the above-described embodiments, in addition it is also necessary to the parameter of installing series reactance device is decided by that the ac impedance characteristic of distribution network and load is with the variation range of voltage, frequency and the scope that changes in time. According to the service performance of distribution network and the various load of grain flax machining, the tuning-points after installing series reactance device is controlled in the range of frequency not exchanging component. The selection capacity of secondary battery isolation capacitance in parallel is unsuitable excessive, and the electrical condenser rated current less by wherein capacity is less than 20% secondary battery C10Control.
When implementing this technical scheme, if excessive about the variation range of equipment and the ac impedance characteristic of load, need the inductance value suitably increasing installing series reactance device; So that better control tuning-points range of frequency.
These are only in the utility model embodiment a preferably embodiment. But, the utility model is not limited to above-mentioned embodiment, and all any equalizations done by the utility model scheme change and modify, and when the function produced does not exceed the scope of this scheme, all belong to protection domain of the present utility model.
Claims (2)
1. the suppression resonance device of grain flax processing power supply system, it is characterized in that: the AC three-phase 400V bus comprising grain flax processing power supply system, each phase of described AC three-phase 400V bus is parallel with one group of lead-acid batteries, it is provided with an electrolytic condenser C1 between the positive pole of described lead-acid batteries and live wire, between the negative pole of described lead-acid batteries and zero line, it is provided with a ceramic condenser C2; It is disposed with a fuse between described electrolytic condenser C1 and live wire and exchanges the two poles of the earth air switch, be disposed with a fuse between described ceramic condenser C2 and grounding wire and exchange the two poles of the earth air switch.
2. the suppression resonance device of a kind of grain flax according to claim 1 processing power supply system, it is characterized in that: also comprise three groups of Li-ion batteries piles, described three groups of Li-ion batteries piles are connected in parallel in each phase of described AC three-phase 400V bus, it is provided with electrical condenser C3 between the positive pole of described Li-ion batteries piles and live wire, between the negative pole of described Li-ion batteries piles and zero line, it is provided with ceramic condenser C4; It is disposed with a fuse between described electrical condenser C3 and live wire and exchanges the two poles of the earth air switch, be disposed with a fuse between described ceramic condenser C4 and grounding wire and exchange the two poles of the earth air switch.
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| CN201520948768.1U CN205283144U (en) | 2015-11-25 | 2015-11-25 | Grain flax processing power supply system's restraining resonance device |
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| CN201520948768.1U CN205283144U (en) | 2015-11-25 | 2015-11-25 | Grain flax processing power supply system's restraining resonance device |
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| CN201620247037.9U Division CN205429754U (en) | 2015-11-25 | 2015-11-25 | Grain flax processing power supply system's restraining resonance device |
| CN201620244724.5U Division CN205429753U (en) | 2015-11-25 | 2015-11-25 | Grain flax processing power supply system's restraining resonance device |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| US20210098198A1 (en) * | 2018-06-28 | 2021-04-01 | Panasonic Intellectual Property Management Co., Ltd. | Power storage device, power supply device, moving body, capacitor, and method for protecting power storage device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20210098198A1 (en) * | 2018-06-28 | 2021-04-01 | Panasonic Intellectual Property Management Co., Ltd. | Power storage device, power supply device, moving body, capacitor, and method for protecting power storage device |
| US11955293B2 (en) * | 2018-06-28 | 2024-04-09 | Panasonic Intellectual Property Management Co., Ltd. | Power storage device, power supply device, moving body, capacitor, and method for protecting power storage device |
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