CN205544569U - Direct current dual supply meets incessant power supply unit - Google Patents
Direct current dual supply meets incessant power supply unit Download PDFInfo
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- CN205544569U CN205544569U CN201620220497.2U CN201620220497U CN205544569U CN 205544569 U CN205544569 U CN 205544569U CN 201620220497 U CN201620220497 U CN 201620220497U CN 205544569 U CN205544569 U CN 205544569U
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- power supply
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- 230000009977 dual effect Effects 0.000 title claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 19
- 239000003054 catalyst Substances 0.000 claims description 9
- 238000005868 electrolysis reaction Methods 0.000 claims description 2
- 238000002955 isolation Methods 0.000 abstract description 5
- 238000009413 insulation Methods 0.000 abstract description 2
- 238000004146 energy storage Methods 0.000 abstract 2
- 238000012806 monitoring device Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
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Abstract
The utility model discloses a direct current dual supply meets incessant power supply unit, including power of the same kind, two -way power and load, isolating diode is connected with two -way power and carried forward to the power all the way, isolating diode's output is connected with energy -storage capacitor, the load is connected between isolating diode's output and energy -storage capacitor's input, on all the way power and two -way power respectively and connect switching of power contactor of the same kind and two -way switching of power contactor, all the way switching of power contactor and two -way switching of power contactor closes on the contact and has met monitoring alarm signal device, the load just, go back and has connect the power supervisory relay between the negative pole. The utility model provides a can the effective isolation dual supply, need not increase direct current insulation monitoring and warning device in the load side again, when disappearing, the power can realize seamless handover arbitrary all the way simultaneously, guarantee to last the direct current dual supply meets incessant power supply unit of power supply to the load.
Description
Technical field
This utility model relates to power supply and circuit engineering field, and particularly a kind of direct-current dual power also connects uninterrupted power supply device.
Background technology
At present, in the electrical industry such as electric power, communication field, in order to improve power supply reliability, direct-current dual power is often used to power.Dual power supply needed to carry out and connect before load, it is achieved no-harass switch.Prior art typically uses diode to isolate between DC source and load, the shortcoming of this mode is: if a diode breakdown, will result in two sections of straight-flow system parallel runnings, and can not be found under normal operating conditions, if it occur that DC earthing, it is the most inconvenient to search.Some systems use high-frequency direct-current module to isolate, although the situation that double power supply parallel can be avoided to run occurs, but the insulating monitoring relay installed on bus will can not monitor the insulation situation of load-side, need to install insulating monitoring relay additional in load-side.Therefore, research and development one can be effectively isolated dual power supply, need not again increase D.C. isolation monitoring device in load-side, simultaneously can realize seamless switching when any one road power supply disappears, it is ensured that the direct-current dual power of powering load continuous also connects uninterrupted power supply device desirability.
Utility model content
The purpose of this utility model is to provide one can be effectively isolated dual power supply, need not again increase D.C. isolation monitoring device in load-side, simultaneously can realize seamless switching when any one road power supply disappears, it is ensured that the direct-current dual power of powering load continuous also connects uninterrupted power supply device.
The purpose of this utility model is realized in, including a road power supply, two road power supply and loads, one road power supply and two road power supplys also connect isolating diode after connecing, the outfan of isolating diode connects storage capacitor, the positive pole of load is connected between the outfan of isolating diode and the input of storage capacitor, negative pole and a road power supply, the negative pole of two road power supplys and the outfan of storage capacitor connect, on a road power supply and two road power supplys respectively and be connected to a road power supply switching contactor and two road power supply switching contactors, the closing on contact and be connected to monitoring alarm advertiser of one road power supply switching contactor and two road power supply switching contactors, load is just, go back between negative pole and be connected to power monitoring relay.
This utility model is by arranging Large Copacity storage capacitor between dual power supply and load, between dual power supply and Large Copacity storage capacitor, isolating diode is set, and on dual power supply, it is respectively adopted power supply switching contactor, buffer action due to diode, electric capacity only understands powering load, causes catalyst time delay to switch without power transmission；Meanwhile, this installation's power source switching contactor controls loop employing auxiliary contact interlocking, it is to avoid action simultaneously, thus avoids the situation that double power supply parallel runs；It addition, this device controls loop all uses unit connection, every road DC source, when detecting that another road catalyst closes contact, starts the catalyst powering load of oneself immediately.When occurring that two-way power supply all disappears or output voltage is low, this device closes contact by switching contactor immediately or power monitoring relay closes contact and reports to the police to monitoring alarm advertiser.In sum, this utility model overcomes prior art and uses diode-isolated to easily cause double power supply parallel operation, high-frequency model isolation is used to need to increase the deficiency of direct current control relay in load-side, provide one and can be effectively isolated dual power supply, need not again increase D.C. isolation monitoring device in load-side, simultaneously can realize seamless switching when any one road power supply disappears, it is ensured that the direct-current dual power of powering load continuous also connects uninterrupted power supply device.
Accompanying drawing explanation
Fig. 1 is circuit connection structure schematic diagram of the present utility model；
In figure: 1-storage capacitor, 2-isolating diode, 3-mono-road power supply switching contactor, 4-mono-road power supply, 5-bis-road power supply, 6-bis-road power supply switching contactor, 7-power monitoring relay, 8-loads, 9-monitoring alarm advertiser.
Detailed description of the invention
Below in conjunction with the accompanying drawings this utility model is further described, but never in any form this utility model is any limitation as, any change made based on this utility model training centre or improvement, belong to protection domain of the present utility model.
As shown in Figure 1, this utility model includes a road power supply 4, two road power supplys 5 and load 8, one road power supply 4 and two road power supplys 5 are also connected isolating diode 2 after connecing, the outfan of isolating diode 2 connects storage capacitor 1, the positive pole of load 8 is connected between the outfan of isolating diode 2 and the input of storage capacitor 1, negative pole and a road power supply 4, the negative pole of two road power supplys 5 and the outfan of storage capacitor 1 connect, on a road power supply 4 and two road power supplys 5 respectively and be connected to road power supply switching contactor 3 and two road power supply switching contactors 6, the closing on contact and be connected to monitoring alarm advertiser 9 of one road power supply switching contactor 3 and two road power supply switching contactors 6, load 8 is just, go back between negative pole and be connected to power monitoring relay 7.
Further, storage capacitor 1 uses voltage to be 350V, and capacitance is the electrolysis large capacitor of 3300 F, as switching moment temporary source, meets the electricity needed for load.
Further, in order to meet technique needs, the main contact of a road power supply switching contactor 3 and two road power supply switching contactors 6 uses two normally opened, two normally closed main contactors.
Further, in order to avoid catalyst action simultaneously, thus avoid double power supply parallel to run, coil employing itself power supply of a road power supply switching contactor 3 and two road power supply switching contactors 6, contactor coil control loop concatenates another catalyst auxiliary contact and realizes interlock function.
Further, in order to ensure that power monitoring relay 7 normally works, the nominal input voltage of power monitoring relay 7 is 220V.
Further, in order to proof load 8 normally works, the rated capacity of load 8 is 200W.
Use this utility model carry out dual power supply uninterruptedly switch time, first it is connected with isolating diode 2 again by a road power supply 4 and two road power supplys 5 and after connecing, the outfan of isolating diode 2 connects jumbo storage capacitor 1, road power supply switching contactor 3 and two road power supply switching contactors 6 are connected respectively on Bing mono-road power supply 4 and two road power supplys 5, owing to isolating diode 2 has the effect of one-way conduction, storage capacitor 1 only can give load 8 power supply, causes catalyst time delay to switch without power transmission；Meanwhile, the control loop of this device one road power supply switching contactor 3 and two road power supply switching contactors 6 uses auxiliary contact interlocking, it is to avoid action simultaneously, thus avoids the situation that double power supply parallel runs；It addition, this device controls loop all uses unit connection, every road DC source, when detecting that another road catalyst closes contact, starts the catalyst powering load of oneself immediately.When occurring that two-way power supply all disappears or output voltage is low, this device closes contact by switching contactor immediately or power monitoring relay 7 closes contact and reports to the police to monitoring alarm advertiser 9.
Claims (6)
- null1. a direct-current dual power connect uninterrupted power supply device，Including a road power supply (4)、Two road power supplys (5) and load (8)，It is characterized in that: a road power supply (4) and two road power supplys (5) are also connected isolating diode (2) after connecing，The outfan of isolating diode (2) connects storage capacitor (1)，The positive pole of load (8) is connected between the outfan of isolating diode (2) and the input of storage capacitor (1)，Negative pole and a road power supply (4)、The negative pole of two road power supplys (5) and the outfan of storage capacitor (1) connect，On a road power supply (4) and two road power supplys (5) respectively and be connected to road power supply switching contactor (3) and two roads power supply switching contactor (6)，The closing on contact and be connected to monitoring alarm advertiser (9) of one road power supply switching contactor (3) and two roads power supply switching contactor (6)，Load (8) is just、Go back between negative pole and be connected to power monitoring relay (7).
- A kind of direct-current dual power the most according to claim 1 also connects uninterrupted power supply device, it is characterised in that: described storage capacitor (1) uses voltage to be 350V, and capacitance is the electrolysis large capacitor of 3300 F, as switching moment temporary source.
- A kind of direct-current dual power the most according to claim 1 also connects uninterrupted power supply device, it is characterised in that: the main contact on described road power supply switching contactor (3) and two roads power supply switching contactor (6) uses two normally opened, two normally closed main contactors.
- 4. according to a kind of direct-current dual power described in claim 1 or 3 and connect uninterrupted power supply device, it is characterized in that: coil employing itself power supply on road power supply switching contactor (3) and two roads power supply switching contactor (6), contactor coil control loop concatenates another catalyst auxiliary contact and realizes interlock function.
- A kind of direct-current dual power the most according to claim 1 also connects uninterrupted power supply device, it is characterised in that: the nominal input voltage of described power monitoring relay (7) is 220V.
- A kind of direct-current dual power the most according to claim 1 also connects uninterrupted power supply device, it is characterised in that: the rated capacity of load (8) is 200W.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620220497.2U CN205544569U (en) | 2016-03-22 | 2016-03-22 | Direct current dual supply meets incessant power supply unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620220497.2U CN205544569U (en) | 2016-03-22 | 2016-03-22 | Direct current dual supply meets incessant power supply unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205544569U true CN205544569U (en) | 2016-08-31 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620220497.2U Expired - Fee Related CN205544569U (en) | 2016-03-22 | 2016-03-22 | Direct current dual supply meets incessant power supply unit |
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| Country | Link |
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| CN (1) | CN205544569U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147204A (en) * | 2017-05-22 | 2017-09-08 | 许昌许继晶锐科技有限公司 | A kind of DC power switching device and DC power supply |
| CN107919725A (en) * | 2017-11-16 | 2018-04-17 | 陕西航空电气有限责任公司 | A kind of airplane power source control box using Interleaved control configuration |
| CN110082663A (en) * | 2019-05-30 | 2019-08-02 | 南方电网调峰调频发电有限公司鲁布革水力发电厂 | A kind of direct-current dual power isolating diode breakdown alarming device |
| CN113991834A (en) * | 2021-11-24 | 2022-01-28 | 广东电网有限责任公司 | Uninterrupted DC double-power automatic change-over switch device |
-
2016
- 2016-03-22 CN CN201620220497.2U patent/CN205544569U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107147204A (en) * | 2017-05-22 | 2017-09-08 | 许昌许继晶锐科技有限公司 | A kind of DC power switching device and DC power supply |
| CN107147204B (en) * | 2017-05-22 | 2019-08-06 | 许昌许继晶锐科技有限公司 | A kind of DC power switching device and DC power supply |
| CN107919725A (en) * | 2017-11-16 | 2018-04-17 | 陕西航空电气有限责任公司 | A kind of airplane power source control box using Interleaved control configuration |
| CN107919725B (en) * | 2017-11-16 | 2021-01-05 | 陕西航空电气有限责任公司 | Aviation power supply control box adopting staggered control configuration |
| CN110082663A (en) * | 2019-05-30 | 2019-08-02 | 南方电网调峰调频发电有限公司鲁布革水力发电厂 | A kind of direct-current dual power isolating diode breakdown alarming device |
| CN110082663B (en) * | 2019-05-30 | 2024-02-23 | 南方电网调峰调频发电有限公司鲁布革水力发电厂 | Direct-current dual-power isolation diode breakdown alarm device |
| CN113991834A (en) * | 2021-11-24 | 2022-01-28 | 广东电网有限责任公司 | Uninterrupted DC double-power automatic change-over switch device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 655802 Nai Ge Village, Lu Bu Ge, Luoping County, Qujing, Yunnan Patentee after: LUBUGE HYDROPOWER PLANT OF SOUTHERN POWER GRID PEAKING FREQUENCY MODULATION POWER GENERATION CO.,LTD. Address before: 655802 Nai Ge Village, Lu Bu Ge, Luoping County, Qujing, Yunnan Patentee before: CHINA SOUTHERN POWER GRID POWER GENERATION COMPANY LUBUGE HYDROELECTRIC POWER PLANT |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |