CN201699472U - Dual-power automatic switching circuit and isolating device thereof - Google Patents
Dual-power automatic switching circuit and isolating device thereof Download PDFInfo
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- CN201699472U CN201699472U CN2010201489046U CN201020148904U CN201699472U CN 201699472 U CN201699472 U CN 201699472U CN 2010201489046 U CN2010201489046 U CN 2010201489046U CN 201020148904 U CN201020148904 U CN 201020148904U CN 201699472 U CN201699472 U CN 201699472U
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Abstract
The utility model discloses a dual-power automatic switching circuit and an isolating device thereof. The dual-power automatic switching circuit comprises a main power circuit and a standby power circuit which are respectively arranged in a main power circuit automatic switching area and a standby power circuit automatic switching area which are partitioned off by the isolating plate of the isolating device; the hand switches of the main power circuit and the standby power circuit are arranged in a hand switch area partitioned off by a secondary isolating plate; a plurality of switching elements are connected in series in the switching device of the main power circuit; a plurality of switching elements are connected in parallel in the switching device of the standby power circuit; whether the main power circuit and the standby power circuit are abnormal or not is monitored through a circuit selector switch, and the switching elements can be controlled to carry out the power supply conversion operation; and the main isolating plate and the secondary isolating plate provide the safe isolation among circuits, and thereby, the reliability of dual-power power supply conversion can be effectively improved.
Description
Technical field
The utility model relates to a kind of switching device of dual power supply conversion, relates in particular to a kind of double supply automatic switch-over circuit and spacer assembly thereof.
Background technology
When voltage collapse takes place its effective value can drop to usually normal value 10% to 90% between, and can continue 0.5 cycle to the several seconds, this phenomenon is an epochmaking ring in the many problems of electric power quality.Though the improvement that the reliability of electric power system and power supply unit essence is continued, but because apparatus insulated inefficacy, fire, natural disaster, people be misoperation, guarantee to keep in good repair improper, animal or foreign object misconnection and touch the line short fault that causes etc. that this type of fault can not avoid fully in electric power system.Its power transfer device also may be malfunctioning because of the fault of contactor structure own again; cause the amplitude of voltage collapse to be deepened again and the prolongation of time; and cause relevant power consumption equipment shutdown, produce pause, finance paralysis (financial transaction market computer delay machine), public transportation confusion etc., allow life security, finance and context endure threat to the fullest extent.
IEEE Std 446-1995 Recommended Practice for Emergency and StandbyPower Systems for Industrial and Commercial Applications, Chapter 4 (ieee standard 446-1995, industry and commercial recommendation rules with urgent and standby power system, chapter 4) supply power mode of suggestion double circuit automatic switchover system automatic transfer switch equipment that electromagnetic type should be set provides the emergency service conversion, IEEE Std 1250-1995Guide for Service to Equipment Sensitive toMomentary Voltage Disturbances, pages 26-30 (ieee standard 1250-1995, instantaneous voltage is disturbed the Maintenance Guide of sensitive equipment, the 26-30 page or leaf) also the automatic transfer switch equipment of suggestion utilization semiconductor-type (solid state) provides the emergency service conversion, to guarantee the running of most of sensitive equipment.Please refer to shown in Figure 1, main power source 101 and 102 li switch elements 103,104 that are connected with switching respectively of stand-by power supply of automatic transfer switch equipment 10 circuit of semiconductor-type (solid state) commonly used, allow main power source 101 and stand-by power supply 102 can utilize the switching of switch element 103,104, the conversion of powering is for the circuit with duplicate supply provides handoff functionality; If the power outage that the power supply generation of the upstream of main power source 101 can not be expected, when electric power system need be switched by stand-by power supply 102 supply electric power, main power source 101 switch elements 103 need switch to not on-state earlier, to isolate the faulty section of main power source 101 fully, but the switch element 104 just conductings of stand-by power supply 102 drop into the electric power running.In this case, above-mentioned in the handoff procedure of power supply conversion, if switch element 103,104 is because of drive circuit lost efficacy, switch element is malfunctioning or reason such as controlling and driving power-fail, switch element 103,104 these ON ON not for example, this OFF and OFF not then can't carry out correct power supply conversion in good time makes the electric power can't be via output 105 normal output power supplies, not only cause great loss, also wasted the function of the electric power system of before having invested simultaneously.The main power source side of above-mentioned electromagnetic type and semiconductor-type automatic transfer switch equipment and stand-by power supply side all are single switch element designs, if the switch element fault will cause the switching problem of power supply conversion.
Though at IEC 62040-3,1999 Explanation of UPS switch definitions, pages151-165 (IEC62040-3,1999, the explanation of UPS switch definition, the 151-165 page or leaf) with NEMA STANDARDS PUBLICATION NO.PE1-1992 UNINTERRUPTIBLEPOWER SYSTEMS, pages 9-23 (National Electrical Manufacturers Association standard, publication number PE1-1992, uninterruptible power system, the 9-23 page or leaf) many ups systems of planting different power supply frameworks has been proposed, but all the reliability of Switching power circuit itself is not improved, common converting switch device, main power source side and stand-by power supply side all are switch elements, when the electric power system that is positioned at the upstream is stopped power supply because of accident, in the power supply transfer process, as the uncontrollable cut-out conducting of the switch element of encountering the main power source side by chance is to isolate the upstream electric power system fully, or the switch element of stand-by power supply side can't be powered in conducting, to cause the power supply convert failed, can't effectively improve the reliability of power supply unit, lead to disaster and loss, the stability of bulk supply system is brought very big test.
By IEEE Std 493-2007 Recommended Practice for the Design of ReliableIndustrial and Commercial Power Systems, pages 177-197 (ieee standard 493-2007, the recommendation rules of industry and commercial power system reliable design, the 177-197 page or leaf) can clearly find out the design of industry and commercial power system in, should adopt the power supply design concept of diversifying risks, please refer to shown in Figure 2, main electric power system 11 and emergency electric system 12 existing a plurality of uninterruptible power supply (UPS) device 111 in parallel, 121 supply electric power, and diverter switch 112 is also arranged, 122 can be in uninterruptible power supply (UPS) device 111,121 when breaking down, switch electric power and directly supply the distributor cap 113 in downstream, 123 stable power-supplyings, to guarantee the continued power of main electric power system 11 and emergency electric system 12, but as it is unstable or when stopping power supply to run into main electric power system 11, need switch to emergency electric system 12, if total system is at power supply change over switch 13 these important step generation single point failures (single point offailure), with equipment that the bulk supply system has been invested (as UPS, charger/rectifier, generator, storage battery, transformer etc.) can't bring into play its effect, bring about great losses, allow the power supply design of main electric power system 11 and emergency electric system 12 high-reliabilities like this perform practically no function.
Common two-supply circuit automatic switching control equipment 14 is for there being version as shown in Figure 3, electric is switched to the power circuit switching device shifter of another power supply by a power supply, if encountering the non-firm power handoff failure again by chance when having a power failure because of accident, the upstream electric power system causes the conversion of to power, not only can bring as inefficacies such as large-scale data center, securities trading, the continuous processing procedure of high-tech, medical system or navigation system, cause tremendous loss, serious words also can threaten to life.The reason that causes continuous TURP to change system's power supply convert failed has a lot, such as two-supply circuit automatic switching control equipment 14 inner main circuit automatic switch districts 141, stand-by circuit automatic switch district 142,, component ageing too high because of insulation degradation, temperature or other unknown causes cause internal switch element and auxiliary device fault thereof, cause explosion or arc spark, involve another circuit and cause output end voltage unstable or to end power supply be the main cause that causes the two-supply circuit handoff failure.In addition, also be another origin cause of formation that causes the two-supply circuit handoff failure if the fault of similar properties involves the hand switch district.In addition, the electric power maintenance personal detects when maintenance to two-supply circuit automatic switching control equipment 14, often is confined to the space of device, and spatial design improperly easily causes personnel's false touch power supply and jeopardizes personnel's life security.
In this case, industry be prevent to be arranged between a plurality of power circuits of safety insulating device inside the too high or arc spark of occurrence temperature prolong burn that situation causes damaging or thereby cause disaster, therefore can be provided with single dividing plate as the isolation between the power circuit in spacer assembly inside commonly used, single dividing plate can only separate the master, the power circuit in stand-by circuit automatic switch district, can't realize main, isolation between stand-by circuit automatic switch district and the hand switch district, make electricity exception touch another circuit easily and cause the chain short trouble of secondary, be difficult to reach the design that safety is isolated really.Therefore, how to develop the two-supply circuit automatic switch-over circuit and the spacer assembly of a kind of high security and reliability, can reduce because of external force or fault that foreign object was caused, or itself is in circuit during the related elements fault at place, reduce the possibility that initiation power supply inefficacy or the failure of Switching power circuit supply cause cascading failure, really being the required product of industrial electric power power supply quality area of maintenance, also is the target that the association area personnel make great efforts to research and develop.
The utility model content
First technical problem to be solved in the utility model is to overcome existing double supply automatic switch-over circuit in handoff procedure, because of switching the fault with switch element itself, causes the problem of two-supply circuit automatic power convert failed.
In order to solve above-mentioned first technical problem, technical solution adopted in the utility model is as follows:
A kind of double supply automatic switch-over circuit, promptly in the diverter switch device of main power circuit is provided the series connection a plurality of switch elements, and a plurality of switch elements in parallel in the diverter switch device of stand-by power supply circuit, in the power supply transfer process, as long as one of them forms not conducting a plurality of switch elements of main power circuit, upstream abnormal electrical power supply or the short trouble that can isolate main power circuit fully, a plurality of switch elements of stand-by power supply circuit are promptly finished the operation by the stand-by power supply circuit supply as long as one of them forms conducting; Specifically can comprise following implementation:
Described double supply automatic switch-over circuit includes a power supply switch circuit and a circuit changing switch, described power supply switch circuit includes a main power circuit and a stand-by power supply circuit, main power circuit is connected with the diverter switch device, the a plurality of switch elements of series connection in the diverter switch device of main power circuit, the stand-by power supply circuit is connected with the diverter switch device, and its stand-by power supply circuit output end is connected with the main power circuit output provides electric power output; Described circuit changing switch is electrically connected with the diverter switch device of power supply switch circuit, may command diverter switch device.Preferable, a plurality of switch elements in parallel in the diverter switch device of described stand-by power supply circuit.
Perhaps, described double supply automatic switch-over circuit includes a power supply switch circuit and a circuit changing switch, described power supply switch circuit includes a main power circuit and a stand-by power supply circuit, main power circuit is connected with the diverter switch device, the stand-by power supply circuit is connected with the diverter switch device, a plurality of switch elements in parallel in the diverter switch device of stand-by power supply circuit, its stand-by power supply circuit output end are connected with the main power circuit output provides electric power output; Described circuit changing switch is electrically connected with the diverter switch device of power supply switch circuit, may command diverter switch device.Preferable, a plurality of switch elements of series connection in the diverter switch device of described main power circuit.
Perhaps, described double supply automatic switch-over circuit includes a power supply switch circuit and a circuit changing switch, described power supply switch circuit includes a main power circuit and a stand-by power supply circuit, main power circuit is connected with the diverter switch device, the a plurality of switch elements of series connection in the diverter switch device of main power circuit, described stand-by power supply circuit is connected with the diverter switch device, and a plurality of switch elements in parallel in the diverter switch device of stand-by power supply circuit, its stand-by power supply circuit output end are connected with the main power circuit output provides electric power output; Described circuit changing switch is electrically connected with the diverter switch device of power supply switch circuit, may command diverter switch device.
For technique scheme, preferable, described circuit changing switch is electrically connected a plurality of temperature-sensitive stickers, and described a plurality of temperature-sensitive stickers are located at the diverter switch device of main power circuit and stand-by power supply circuit respectively.Thereby, the existing double supply automatic switch-over circuit of the utility model improvement, the a plurality of switch elements of series connection in main power circuit, and/or, the interior a plurality of switch elements in parallel of stand-by power supply circuit also cooperate circuit changing switch, whether power supply input and output with monitoring main power circuit and stand-by power supply circuit have the voltage and current abnormal conditions, and the conducting state of monitoring diverter switch device and operating temperature own have no abnormally, and the power supply conversion process of automatic safe switching is provided in good time.
Preferable, be provided with first hand switch between described main power circuit input and the main power circuit diverter switch device, be provided with second hand switch between stand-by power supply circuit input end and the stand-by power supply circuit changing switch device, the power supply switch circuit output is provided with the 3rd hand switch, between the output of main power circuit and stand-by power supply circuit input end and the 3rd hand switch, be respectively equipped with a bypass service switch.
Preferable, described switch element is electronic type or electromagnetic type or semiconductor-type.
In order further to overcome the defective of prior art, the utility model is guaranteeing that further the technical problem that solves is effectively to isolate main power circuit and stand-by power supply circuit, and safe insulating power supply commutation circuit and hand switch district on the reliable basis of switching; For this reason, technical solution adopted in the utility model is as follows:
Spacer assembly utilizes main division board and secondary division board to isolate the main circuit automatic switch district that forms, stand-by circuit automatic switch district and hand switch district, but the main power circuit of power supply source commutation circuit and stand-by power supply circuit, be placed in main circuit automatic switch district and stand-by circuit automatic switch district respectively, utilize on the main division board and main division board of tool septal area, the through wires hole that upper/lower positions is staggered, to take precautions against the damage that electric wire cocks off and prolongs burning and intercept component ageing explosion between the two-supply circuit, its hand switch district can be by the line hole of secondary division board, first of power supply source commutation circuit, second, the 3rd hand switch and bypass service switch connect setting, personal security when realizing the manual switchover maintenance is isolated, the external foreign matter that also can prevent main circuit automatic switch district and stand-by circuit automatic switch district is fallen into the hand switch district or is touched another circuit and cause the chain short trouble of secondary, is effectively reached safety and isolates purpose; Specifically can comprise following implementation:
A kind of spacer assembly, be used to install at least one group of above-mentioned double supply automatic switch-over circuit: described spacer assembly includes a main division board and a secondary division board, described main division board is the corresponding partition with septal area, main division board one side is main circuit automatic switch district, opposite side is stand-by circuit automatic switch district, is respectively equipped with a plurality of for the through wires hole that connects usefulness between main circuit automatic switch district and the stand-by circuit automatic switch district on its corresponding partition; Described secondary division board which is provided with a plurality of reservation lines hole and is used for connecting cross-over connection in the future for being arranged on main division board below and vertical each other with main division board, and secondary division board below is the hand switch district.
Preferable, the through wires hole on the described corresponding partition is set to upper and lower intervening portion.
Preferable, the formation that is formed in one of described main division board and secondary division board.
Preferable, described main division board and secondary division board are that single individuality is assembled joint mutually.
Generally speaking, the utility model is a kind of double supply automatic switch-over circuit and spacer assembly thereof, can improve in the duplicate supply handoff procedure, and main power circuit need form not conducting, and makes the stand-by power supply circuit turn-on to finish the switching of power supply; And the main division board of spacer assembly tool septal area and secondary division board, can prevent, component ageing too high or other unknown causes to cause switch inside element and auxiliary device fault thereof, cause explosion or arc spark because of insulation degradation, temperature, involve another circuit or hand switch district and cause the unstable or termination power supply of output end voltage, accident prevention enlarges, thereby realizes the safety isolation.
By above-mentioned explanation, the utlity model has following beneficial effect:
1. a plurality of switch elements of series connection in the main power circuit; an as long as one not conducting; the upstream abnormal electrical power supply or the short trouble of promptly isolating main power circuit fully, and a plurality of switch elements in parallel in the stand-by power supply circuit, an one conducting power supply can reach the switching of dual power supply conversion.
2. the function that has the operating temperature of monitoring switch element own, when switch element temperature anomaly, can carry out circuit in advance and switch operation, with the normal power supply of prevention switch element anomalous effects to load, also can allow the switch element of temperature anomaly decommission, avoid accidents such as the too high generating device explosion of temperature.
3. the main division board of spacer assembly and secondary division board are isolated, can be effectively that two-supply circuit is spaced-apart, and hand switch all is arranged at the hand switch district, isolates with the safety that reaches and power supply switch circuit is asked, guarantees the safety of maintenance work.
4. the reliability of dual power supply conversion can be effectively improved,, electric power can be effectively supplied to guarantee emergency electric system in the urgent moment.
Description of drawings
Fig. 1 is automatic transfer switch circuitry figure commonly used in the prior art.
Fig. 2 is the system construction drawing with a plurality of UPS and power supply change over switch commonly used in the prior art.
Fig. 3 is the front view of two-supply circuit automatic switching control equipment commonly used in the prior art.
Fig. 4 is the utility model system block diagram.
Fig. 5 is the line map of the utility model double supply automatic switch-over circuit.
Fig. 6 is the three-dimensional exploded view of the utility model spacer assembly assembling.
Fig. 7 is installed in the front view of spacer assembly for the utility model double supply automatic switch-over circuit.
Fig. 8 is the schematic diagram of the utility model embodiment one.
Fig. 9 is the schematic diagram of the utility model embodiment two.
Figure 10 is the schematic diagram of the utility model embodiment three.
Figure 11 is the schematic diagram of the utility model embodiment four.
Figure 12 is the schematic diagram of the utility model embodiment five.
Embodiment
Please refer to Fig. 4 and shown in Figure 6, the utility model includes double supply automatic switch-over circuit 3 and spacer assembly 6, wherein:
Please refer to shown in Figure 5, described double supply automatic switch-over circuit 3 includes: a power supply switch circuit 4, power supply switch circuit 4 includes a main power circuit 41 and a stand-by power supply circuit 42, main power circuit 41 is connected with diverter switch device 411, the a plurality of switch elements 4111 of series connection in the described diverter switch device 411, and between main power circuit 41 inputs 410 and diverter switch device 411, be provided with first hand switch 412 and fuse group 413 in regular turn; Stand-by power supply circuit 42 is connected with diverter switch device 421, a plurality of switch elements 4211 in parallel in the described diverter switch device 421, and between stand-by power supply circuit 42 inputs 420 and diverter switch device 421, being provided with second hand switch 422 and fuse group 423 in regular turn, its stand-by power supply circuit 42 outputs 424 are connected with main power circuit 41 outputs 414 provides electric power output; And before power supply switch circuit 4 outputs 45, be provided with the 3rd hand switch 43.Between the input 410,420 of above-mentioned main power circuit 41 and stand-by power supply circuit 42 and the output of the 3rd hand switch 43, be provided with a bypass service switch 44, purposes is switched in the maintenance that can manually be used for 42 in main power circuit 41 or stand-by power supply circuit; Above-mentioned switch element 4111,4211 can be electronic type or electromagnetic type or semiconductor-type any, its semiconductor-type can be selected forced reversing SCR thyristor (SCR forced-commutated thyristor) for use, lock control cutoff thyristor (gate-turn-off thyristor, GTO), metal-oxide semiconductor (MOS) turn-off thyristor (MOSturn-off thyristor, MTO), emitter-base bandgap grading turn-off thyristor (emitter turn-off thyristor, ETO), integral gate change transistor (integrated gate-commutated thyristor, IGCT), power metal oxide semiconductor field-effect transistor (power MOSFETs), insulated gate bipolar transistor (IGBTs) waits any.One circuit changing switch 5, described circuit changing switch 5 is electrically connected a plurality of temperature-sensitive sticker (not shown), described a plurality of temperature-sensitive sticker is located at the diverter switch device 411,421 of main power circuit 41 and stand-by power supply circuit 42 respectively, and the diverter switch device 411,421 of described circuit changing switch 5 electric connection of power supply commutation circuits 4, can monitor the voltage and current situation of input of power supply switch circuit 4 power supplys and output, and the temperature of monitoring diverter switch device 411,421, to judge a plurality of switch elements 4111,4211 in the control its switch device 411,421.
Please refer to shown in Figure 6ly, spacer assembly 6 is used to install double supply automatic switch-over circuit 3, and it comprises main division board 61, one a secondary division board 62 and a safe spacing body 69:
Described main division board 61 is for having the corresponding partition 611 of septal area 610, main division board 61 1 sides are main circuit automatic switch district 63, opposite side is stand-by circuit automatic switch district 64, be respectively equipped with the staggered through wires hole 6111 in a plurality of upper and lower positions on its corresponding partition 611, use for the connection between main circuit automatic switch district 63 and the stand-by circuit automatic switch district 64; Described secondary division board 62 is arranged on main division board 61 belows and vertical each other with main division board 61, which is provided with a plurality of reservation lines hole 621, and as link cross-over connection usefulness in the future, secondary division board 62 belows are hand switch district 65; Described safe spacing body 69 is hubbed at a side in the spacer assembly 6, and has storage tank 691.Above-mentioned main division board 61 and secondary division board 62 can be formed in one and form or single individuality is assembled joint mutually.
Please refer to Fig. 4 and shown in Figure 5, when circuit changing switch 5 monitors voltage disturbance or short trouble when occurring in main electric power system 21, and monitoring standby power system 22 is in the time of can changing output for power supply, then switch element 4111 not conductings in the diverter switch device 411 of circuit changing switch 5 control main power circuits 41, to isolate main electric power system 21 fully, and control triggers diverter switch device 421 interior switch element 4211 conductings of stand-by power supply circuit 42, emergency electric system 22 can be exported via stand-by power supply circuit 42 continued powers, can finish the circuit change action, cut afterwards the criterion of throwing (Break-Before-make) earlier to reach, allow power supply switch circuit 4 outputs 45 export by continued power; Particularly, in the utility model circuit handoff procedure, the a plurality of switch elements 4111 of series connection in the main power circuit 41, as long as wherein arbitrary switch element 4111 not conductings can reach the effect of isolating main electric power system 21 fully, a plurality of switch elements 4211 in parallel in the stand-by power supply circuit 42, wherein arbitrary switch element 4211 conductings can allow emergency electric system 22 power, can avoid because of switch element 4111, the power supply convert failed problem that 4211 faults cause, significantly promote the reliability and the practicality of electric power system, in the time of also can avoiding main electric power system 21 and emergency electric system 22 in parallel, cause the short trouble of main electric power system 21 sides or abnormal electrical power supply to influence emergency electric system 22 sides.
If, the generation personnel keep in repair the back mistake stand-by power supply circuit 42, when being main supply side, need to transfer supply side to main power circuit 41 by stand-by power supply circuit 42, switch, with a plurality of switch elements 4211 not conductings simultaneously of stand-by power supply circuit 42 by circuit changing switch 5 controls, to isolate the power supply of standby power system 22, and a plurality of switch elements 4111 of the main power circuit of conducting simultaneously 41, allow main electric power system 21 power, adjust it and be main supply side.
Please refer to shown in Figure 6ly again, spacer assembly 6 tops are provided with the anti-dividing plate 66 that drips, and to prevent the aqueous vapor condensation of context, splash into the circuit element in main circuit automatic switch district 63 or stand-by circuit automatic switch district 64; And, utilize spacer assembly 6 upper surfaces to be provided with heat exchange steam vent 60 and be provided with the radiating effect that heat exchange air admission hole 671 increases spacer assembly 6 with door-plate 67.
Please refer to Figure 6 and Figure 7, setting is installed in described main circuit automatic switch district 63 and stand-by circuit automatic switch district 64 main power circuit 41 and the stand-by power supply circuit 42 of power supply source commutation circuit 4 respectively, between have the corresponding partition 611 of septal area 610, on it a plurality of on, the through wires hole 6111 that upper/lower positions is staggered, can connect usefulness for main power circuit 41 and stand-by power supply circuit 42, it can utilize through wires hole 6111 to form tight fit with the power line 68 that is connected usefulness, make between power line 68 and the through wires hole 6111, reason does not form the gap and has arc spark to prolong the danger of burning, can stop the burning of prolonging between main circuit automatic switch district 63 and stand-by circuit automatic switch district 64 power circuits by septal area 610 again; Its hand switch district 65 can be by the line hole 621 of secondary division board 62, first, second, third hand switch 412,422,43 of power supply source commutation circuit 4 and bypass service switch 44 connect to be settled, can realize the personal security isolation when making the manual switchover maintenance, the external foreign matter (the aging explosion thing of the water droplet of condensation, circuit element, iron wire or sheet metal) that also can prevent main circuit automatic switch district 63 and stand-by circuit automatic switch district 64 is fallen into hand switch district 65 or is touched another circuit and cause the chain short trouble of secondary, is effectively reached safety and isolates purpose; The storage tank 691 power supply road diverter switches 5 of safe spacing body 69 are provided with, and can allow and isolate safely between circuit changing switch 5 and the power supply switch circuit 4, prevent that the element fault of power supply switch circuit 4 from influencing circuit changing switch 5 runnings.
Please refer to Fig. 4, Fig. 5 and shown in Figure 8, the utility model embodiment one is a main power circuit 41 in the power supply switch circuit 4 of double supply automatic switch-over circuits 3 in the spacer assembly 6, accept main electric power system 21 power supplies of upstream power supply 2, its stand-by power supply circuit 42, receive emergency electric system 22 power supplies, upstream power supply 2 can be exported by power supply switch circuit 4 outputs 45 stable supply electric power, and described main electric power system 21 and emergency electric system 22 can be respectively independently silent oscillation UPS7 power supply.
Please refer to Fig. 4, Fig. 5 and shown in Figure 9, the utility model embodiment two is the main power circuit 41 of double supply automatic switch-over circuit 3 in the spacer assembly 6, receive main electric power system 21 power supplies of upstream power supply 2, its stand-by power supply circuit 42, receive emergency electric system 22 power supplies, upstream power supply 2 can be exported by power supply switch circuit 4 outputs 45 stable supply electric power, and described main electric power system 21 is silent oscillation UPS 7 power supplies, and emergency electric system 22 is general civil power 8.
Please refer to Fig. 4, Fig. 5 and shown in Figure 10, the utility model embodiment three is the main power circuit 41 of double supply automatic switch-over circuit 3 in the spacer assembly 6, receive main electric power system 21 power supplies of upstream power supply 2, its stand-by power supply circuit 42 receives emergency electric system 22 power supplies, upstream power supply 2 can be exported by power supply switch circuit 4 outputs 45 stable supply electric power, described main electric power system 21 is silent oscillation UPS 7 power supply, and its emergency electric system 22 provides double supply automatic switch-over circuit 3 required power source for dynamic type UPS 9.
Please refer to Fig. 4, Fig. 5 and shown in Figure 11, the utility model embodiment four is the main power circuit 41 of double supply automatic switch-over circuit 3 in the spacer assembly 6, receive main electric power system 21 power supplies of upstream power supply 2, its stand-by power supply circuit 42 receives emergency electric system 22 power supplies, upstream power supply 2 can be exported by power supply switch circuit 4 outputs 45 stable supply electric power, described main electric power system 21 is 8 power supplies of general civil power, and its emergency electric system 22 provides double supply automatic switch-over circuit 3 required power source for engine generator 91.
Please refer to Fig. 4, Fig. 5 and shown in Figure 12, the utility model embodiment five is the main power circuit 41 of double supply automatic switch-over circuit 3 in the spacer assembly 6, receive main electric power system 21 power supplies of upstream power supply 2, its stand-by power supply circuit 42 receives emergency electric system 22 power supplies, upstream power supply 2 can be exported by power supply switch circuit 4 outputs 45 stable supply electric power, and above-mentioned main electric power system 21 and emergency electric system 22 can be the required electricity consumption of independently general respectively civil power 8 supplies.
Claims (18)
1. double supply automatic switch-over circuit, it is characterized in that: described double supply automatic switch-over circuit (3) includes a power supply switch circuit (4) and a circuit changing switch (5), described power supply switch circuit (4) includes a main power circuit (41) and a stand-by power supply circuit (42), main power circuit (41) is connected with the first diverter switch device (411), series connection a plurality of first switch elements (4111) in the first diverter switch device (411) of main power circuit (41), stand-by power supply circuit (42) is connected with the second diverter switch device (421), and its stand-by power supply circuit output end (424) is connected with main power circuit output (414) provides electric power output; Described circuit changing switch (5) is electrically connected first, second diverter switch device of may command (411,421) with first, second diverter switch device (411,421) of power supply switch circuit (4).
2. a kind of double supply automatic switch-over circuit according to claim 1 is characterized in that: a plurality of second switch elements in parallel (4211) in the second diverter switch device (421) of described stand-by power supply circuit (42).
3. a kind of double supply automatic switch-over circuit according to claim 1, it is characterized in that: described circuit changing switch (5) is electrically connected a plurality of temperature-sensitive stickers, and described a plurality of temperature-sensitive stickers are located at first, second diverter switch device (411,421) of main power circuit (41) and stand-by power supply circuit (42) respectively.
4. a kind of double supply automatic switch-over circuit according to claim 1, it is characterized in that: be provided with first hand switch (412) between the described main power circuit input (410) and the first diverter switch device (411), be provided with second hand switch (422) between the stand-by power supply circuit input end (420) and the second diverter switch device (421), power supply switch circuit (4) output is provided with the 3rd hand switch (43), between the output of main power circuit input (410) and stand-by power supply circuit input end (420) and the 3rd hand switch (43), be respectively equipped with a bypass service switch (44).
5. a kind of double supply automatic switch-over circuit according to claim 1 is characterized in that: described first, second switch element (4111,4211) is electronic type or electromagnetic type or semiconductor-type.
6. double supply automatic switch-over circuit, it is characterized in that: described double supply automatic switch-over circuit (3) includes a power supply switch circuit (4) and a circuit changing switch (5), described power supply switch circuit (4) includes a main power circuit (41) and a stand-by power supply circuit (42), main power circuit (41) is connected with the first diverter switch device (411), stand-by power supply circuit (42) is connected with the second diverter switch device (421), a plurality of second switch elements in parallel (4211) in the second diverter switch device (421) of stand-by power supply circuit (42), its stand-by power supply circuit output end (424) are connected with main power circuit output (414) provides electric power output; Described circuit changing switch (5) is electrically connected first, second diverter switch device of may command (411,421) with first, second diverter switch device (411,421) of power supply switch circuit (4).
7. a kind of double supply automatic switch-over circuit according to claim 6 is characterized in that: series connection a plurality of first switch elements (4111) in the first diverter switch device (411) of described main power circuit (41).
8. a kind of double supply automatic switch-over circuit according to claim 6, it is characterized in that: described circuit changing switch (5) is electrically connected a plurality of temperature-sensitive stickers, and described a plurality of temperature-sensitive stickers are located at first, second diverter switch device (411,421) of main power circuit (41) and stand-by power supply circuit (42) respectively.
9. a kind of double supply automatic switch-over circuit according to claim 6, it is characterized in that: be provided with first hand switch (412) between the described main power circuit input (410) and the first diverter switch device (411), be provided with second hand switch (422) between the stand-by power supply circuit input end (420) and the second diverter switch device (421), power supply switch circuit (4) output is provided with the 3rd hand switch (43), between the output of main power circuit input (410) and stand-by power supply circuit input end (420) and the 3rd hand switch (43), be respectively equipped with a bypass service switch (44).
10. a kind of double supply automatic switch-over circuit according to claim 6 is characterized in that: described first, second switch element (4111,4211) is electronic type or electromagnetic type or semiconductor-type.
11. double supply automatic switch-over circuit, it is characterized in that: described double supply automatic switch-over circuit (3) includes a power supply switch circuit (4) and a circuit changing switch (5), described power supply switch circuit (4) includes a main power circuit (41) and a stand-by power supply circuit (42), main power circuit (41) is connected with the first diverter switch device (411), series connection a plurality of first switch elements (4111) in the first diverter switch device (411) of main power circuit (41), described stand-by power supply circuit (42) is connected with the second diverter switch device (421), and a plurality of second switch elements in parallel (4211) in the second diverter switch device (421) of stand-by power supply circuit (42), its stand-by power supply circuit output end (424) are connected with main power circuit output (414) provides electric power output; Described circuit changing switch (5) is electrically connected first, second diverter switch device of may command (411,421) with first, second diverter switch device (411,421) of power supply switch circuit (4).
12. a kind of double supply automatic switch-over circuit according to claim 11, it is characterized in that: described circuit changing switch (5) is electrically connected a plurality of temperature-sensitive stickers, and described a plurality of temperature-sensitive stickers are located at first, second diverter switch device (411,421) of main power circuit (41) and stand-by power supply circuit (42) respectively.
13. a kind of double supply automatic switch-over circuit according to claim 11, it is characterized in that: be provided with first hand switch (412) between the described main power circuit input (410) and the first diverter switch device (411), be provided with second hand switch (422) between the stand-by power supply circuit input end (420) and the second diverter switch device (421), power supply switch circuit (4) output is provided with the 3rd hand switch (43), between the output of main power circuit input (410) and stand-by power supply circuit input end (420) and the 3rd hand switch (43), be respectively equipped with a bypass service switch (44).
14. a kind of double supply automatic switch-over circuit according to claim 11 is characterized in that: described first, second switch element (4111,4211) is electronic type or electromagnetic type or semiconductor-type.
15. at least one group of an installing as claim 1-14 arbitrary as described in the spacer assembly of double supply automatic switch-over circuit (3), it is characterized in that: described spacer assembly (6) includes a main division board (61) and a secondary division board (62), described main division board (61) is for having the corresponding partition (611) of septal area (610), main division board (61) one sides are main circuit automatic switch district (63), opposite side is stand-by circuit automatic switch district (64), is respectively equipped with a plurality of for the through wires hole (6111) that connects usefulness between main circuit automatic switch district (63) and the stand-by circuit automatic switch district (64) on its corresponding partition (611); Described secondary division board (62) which is provided with a plurality of reservation lines holes (621) and is used for connecting cross-over connection in the future for being arranged on main division board (61) below and vertical each other with main division board (61), and secondary division board (62) below is hand switch district (65).
16. a kind of spacer assembly according to claim 15 is characterized in that: the through wires hole (6111) on the described corresponding partition (611) is set to upper and lower staggered.
17. a kind of spacer assembly according to claim 15 is characterized in that: the formation that is formed in one of described main division board (61) and secondary division board (62).
18. a kind of spacer assembly according to claim 15 is characterized in that: described main division board (61) and secondary division board (62) are assembled joint mutually for single individuality.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201489046U CN201699472U (en) | 2010-03-22 | 2010-03-22 | Dual-power automatic switching circuit and isolating device thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201489046U CN201699472U (en) | 2010-03-22 | 2010-03-22 | Dual-power automatic switching circuit and isolating device thereof |
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| Publication Number | Publication Date |
|---|---|
| CN201699472U true CN201699472U (en) | 2011-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201489046U Expired - Fee Related CN201699472U (en) | 2010-03-22 | 2010-03-22 | Dual-power automatic switching circuit and isolating device thereof |
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| Country | Link |
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| CN (1) | CN201699472U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103999319A (en) * | 2011-10-21 | 2014-08-20 | 施耐德电气It公司 | Adaptive load sharing of parallel inverters system |
| CN105471079A (en) * | 2016-01-12 | 2016-04-06 | 济南轨道交通装备有限责任公司 | Emergency control system and emergency control method for railway track car |
| CN105591906A (en) * | 2015-07-02 | 2016-05-18 | 杭州华三通信技术有限公司 | Path switching device and path switching method |
| CN106026351A (en) * | 2015-03-27 | 2016-10-12 | 宏正自动科技股份有限公司 | Power supply switching selector |
| CN106602701A (en) * | 2016-11-16 | 2017-04-26 | 北京圣福伦科技有限公司 | Financial equipment uninterruptible power supply circuit and power supply method |
| CN108258800A (en) * | 2018-03-26 | 2018-07-06 | 广东电网有限责任公司 | A kind of main power supply formula uninterruptible power system based on SiC two-way switch |
| CN110504740A (en) * | 2018-05-17 | 2019-11-26 | 中国石油天然气股份有限公司 | A kind of power supply device of Gas Stations emergency stop (apparatus) system |
| CN113726139A (en) * | 2021-08-26 | 2021-11-30 | 珠海格力电器股份有限公司 | Frequency converter power supply protection device and method and frequency converter |
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2010
- 2010-03-22 CN CN2010201489046U patent/CN201699472U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103999319A (en) * | 2011-10-21 | 2014-08-20 | 施耐德电气It公司 | Adaptive load sharing of parallel inverters system |
| CN106026351A (en) * | 2015-03-27 | 2016-10-12 | 宏正自动科技股份有限公司 | Power supply switching selector |
| CN106026351B (en) * | 2015-03-27 | 2019-04-19 | 宏正自动科技股份有限公司 | Power supply switching selector |
| CN105591906A (en) * | 2015-07-02 | 2016-05-18 | 杭州华三通信技术有限公司 | Path switching device and path switching method |
| CN105471079A (en) * | 2016-01-12 | 2016-04-06 | 济南轨道交通装备有限责任公司 | Emergency control system and emergency control method for railway track car |
| CN106602701A (en) * | 2016-11-16 | 2017-04-26 | 北京圣福伦科技有限公司 | Financial equipment uninterruptible power supply circuit and power supply method |
| CN108258800A (en) * | 2018-03-26 | 2018-07-06 | 广东电网有限责任公司 | A kind of main power supply formula uninterruptible power system based on SiC two-way switch |
| CN110504740A (en) * | 2018-05-17 | 2019-11-26 | 中国石油天然气股份有限公司 | A kind of power supply device of Gas Stations emergency stop (apparatus) system |
| CN113726139A (en) * | 2021-08-26 | 2021-11-30 | 珠海格力电器股份有限公司 | Frequency converter power supply protection device and method and frequency converter |
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