CN111478424B - Temporary emergency lighting feed system for ship - Google Patents
Temporary emergency lighting feed system for ship Download PDFInfo
- Publication number
- CN111478424B CN111478424B CN202010304433.1A CN202010304433A CN111478424B CN 111478424 B CN111478424 B CN 111478424B CN 202010304433 A CN202010304433 A CN 202010304433A CN 111478424 B CN111478424 B CN 111478424B
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- emergency
- power supply
- temporary
- emergency lighting
- feed
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- 230000007704 transition Effects 0.000 abstract description 6
- 238000012423 maintenance Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 2
- 230000004907 flux Effects 0.000 abstract description 2
- 241001465382 Physalis alkekengi Species 0.000 abstract 1
- 238000005286 illumination Methods 0.000 description 5
- 238000010276 construction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005856 abnormality Effects 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/02—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which an auxiliary distribution system and its associated lamps are brought into service
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/062—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads
- H02J9/065—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for AC powered loads for lighting purposes
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/066—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems characterised by the use of dynamo-electric machines
Abstract
The invention discloses a temporary emergency lighting feed system of a ship, which is externally connected with a main power feed network and comprises: temporary emergency power supply, charge-discharge panel, external switch box, emergency power supply, first emergency distribution board, second emergency distribution board, third emergency distribution board, emergency feed transformer, a plurality of emergency lighting distribution boxes and a plurality of temporary emergency lighting lamps and lanterns. Compared with the traditional system, only one power supply is needed to be connected, and the wiring is simple and convenient; the light source of the lamp is used as emergency lighting and temporary emergency lighting, and an independent incandescent bulb is not needed to be configured as a temporary emergency lighting source, so that the luminous energy efficiency of the lamp is improved, and the maintenance cost of the lamp during ship operation is reduced. Meanwhile, during the transition period from the failure of the power supply of the main power supply to the start of the power supply of the emergency power supply and during the failure of the power supply of the main power supply and the power supply of the emergency power supply, the luminous flux of the lamp can be maintained in a normal state and is not reduced, and the defects of the traditional system framework are greatly reduced or eliminated.
Description
Technical Field
The invention relates to the field of ship illumination low-voltage alternating current-direct current feed, in particular to a ship temporary emergency illumination feed system.
Background
According to the requirements related to the passenger ship emergency power supply section in the international maritime life safety convention amendment (SOLAS), when the emergency power supply configured on the passenger ship is a generator, the generator should be driven by a proper prime mover with fuel oil with a flash point (closed cup test) not lower than 43 ℃ for separate oil supply, and besides, a set of storage battery needs to be further arranged as a temporary emergency power supply. During the transition period when the main power supply fails and automatically switches to the emergency power supply (not exceeding 45 seconds) and during the period when the main and emergency power supplies fail, the whole ship load can be in a power losing state without a storage battery pack or uninterrupted power supply, and abnormality can occur, panic is caused, and even the ship or personal safety is influenced, the temporary emergency power supply has the basic function of continuously supplying power (at least for half an hour) to loads (such as the emergency lighting of important places such as a collection and boarding area of a lifeboat, a steering device, a control station, a fire fighter equipment storage position and the like) regulated by the SOLAS during the transition period, so that the possibility of dangerous situations is reduced or even avoided.
The temporary emergency lighting system on a vessel typically doubles as part of an emergency lighting system, the conventional temporary emergency lighting system being detailed in the schematic example of fig. 2, where a represents a temporary emergency power source (DC 24V battery), B represents a DC24V battery charge-discharge panel, C represents a DC24V temporary emergency lighting distribution box, D represents an AC220V emergency lighting distribution box, E represents an emergency power distribution panel, F represents an emergency power feeding AC450V/230V transformer, G represents an emergency power source (emergency generator), H represents a power feeding cable, I represents a temporary emergency lighting fixture (2 fluorescent tubes inside as the main emergency lighting source, and 1 incandescent bulb as the temporary emergency lighting source).
The conventional system architecture is widely applied to the field of temporary emergency lighting feeding of ships at present, but has the following disadvantages: the temporary emergency lighting feed under the framework is not suitable for long-distance transmission, otherwise, the voltage drop is too large, so that the temporary emergency lighting source cannot work normally, if the voltage drop is limited to be not more than 6% -10% of rated voltage, the reduction of the path of a feed line or the increase of the conductor cross section area of a feed cable is considered, and the difficulty of cable laying and wiring of a shipyard and the purchase cost of the cable are increased. When the power supply of the main power supply on the ship breaks down to the transition period when the power supply of the emergency power supply begins to feed, and the period when the power supply of the main power supply and the power supply of the emergency power supply break down, the main emergency lighting source in the temporary emergency lighting lamp fails to work, and the temporary emergency lighting source emits light to work, so that the temporary emergency lighting source has small power, short service life and low luminous efficiency, the illuminance of the area where the lamp point is positioned can be greatly reduced, and the visual operation of personnel on the ship can still be influenced; the temporary emergency lighting system and the emergency lighting system are different in power supply, and the temporary emergency lighting distribution box and the feed line under the traditional framework are completely and independently separated from the emergency lighting distribution box and the feed line at present, so that not only is the limited ship space occupied, but also the shipping weight, the shipyard cost and the construction difficulty are increased.
Accordingly, a new solution is sought to eliminate or substantially reduce the above drawbacks.
Disclosure of Invention
The invention aims to provide a temporary emergency lighting feed system for ships, which can greatly reduce or eliminate the defects of the traditional system framework when realizing the temporary emergency lighting feed function.
The technical scheme for achieving the purpose is as follows:
the utility model provides a temporary emergency lighting feed system of boats and ships, external main power supply feed net, its characterized in that includes: a temporary emergency power supply, a charge-discharge board, an external switch box, an emergency power supply, a first emergency power distribution board, a second emergency power distribution board, a third emergency power distribution board, an emergency feed transformer, a plurality of emergency lighting distribution boxes and a plurality of temporary emergency lighting lamps,
the third emergency distribution board is provided with a group of bus bars, and two input ends of the group of bus bars are connected with the output end of the second emergency distribution board and the output end of the external switch box;
each output end of the busbar is connected with the input end of each emergency lighting distribution box;
each output end of each emergency lighting distribution box is connected with a parallel branch formed by connecting a plurality of temporary emergency lighting lamps in parallel;
the input end of the second emergency distribution board is connected with the output end of the emergency feed transformer;
the input end of the emergency feed transformer is connected with the output end of the first emergency distribution board;
two input ends of the first emergency distribution board are respectively connected with the main power supply feed network and the emergency power supply;
the input end of the external switch box is connected with the temporary emergency power supply;
the temporary emergency power supply is connected with the main power supply feed network through the charge-discharge plate.
Preferably, the temporary emergency power supply is further connected to an emergency power supply feed network through the charge-discharge plate, and the emergency power supply feed network comprises the emergency power supply.
Preferably, the temporary emergency power supply is a DC240V battery pack.
Preferably, the emergency power supply is an emergency generator.
Preferably, the emergency feed transformer is an AC450V/240V transformer;
the emergency lighting distribution box is an AC/DC230V emergency lighting distribution box.
Preferably, the bus bar in the third emergency power distribution board is provided with an automatic switching function.
The beneficial effects of the invention are as follows: the invention improves the voltage of the temporary emergency power supply and is suitable for long-distance feed transmission on ultra-large ships. Compared with the traditional system, the temporary emergency lighting lamp only needs to be connected with one power supply, and wiring is simple and convenient; the light source of the lamp is used as emergency lighting and temporary emergency lighting, and an independent incandescent bulb is not needed to be configured as a temporary emergency lighting source, so that the luminous energy efficiency of the lamp is improved, and the maintenance cost of the lamp during ship operation is reduced. Meanwhile, during the transition period from the failure of the power supply of the main power supply to the start of the power supply of the emergency power supply and during the failure of the power supply of the main power supply and the power supply of the emergency power supply, the luminous flux of the lamp can be maintained in a normal state and is not reduced. The temporary emergency lighting system and the emergency lighting system share a set of distribution boxes and feeder lines. The ship emergency light point has the advantages that the ship emergency light point is safe, reliable and wide in application range, under the condition of ship main and emergency power supply feed faults, the illuminance of the area where the emergency light point is located cannot obviously fluctuate, continuity of ship illumination and personnel vision operation can be ensured, probability of risk occurrence is reduced, safety of ships is improved, and personal safety of crews and passengers is effectively guaranteed. Meanwhile, the space of the ship is saved, the shipping weight, the construction cost and the construction difficulty are reduced, the performance and the effect of temporary emergency illumination are improved, and the facility maintenance cost during the operation of the ship is reduced.
Drawings
FIG. 1 is a block diagram of a marine temporary emergency lighting feed system of the present invention;
fig. 2 is a block diagram of a prior art temporary emergency lighting feed system for a ship.
Detailed Description
The invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, the temporary emergency lighting feeding system for a ship of the present invention is externally connected with a main power feeding network, and includes: a temporary emergency power supply 1, a charge-discharge panel 2, an external switch box 3, an emergency power supply 4, a first emergency power distribution panel 51, a second emergency power distribution panel 52, a third emergency power distribution panel 53, an emergency feed transformer 6, a plurality of emergency lighting distribution boxes 7 and a plurality of temporary emergency lighting fixtures 9 (the light sources of which serve as both emergency lighting and temporary emergency lighting). In fig. 1, 8 denotes a feeder cable. In this embodiment, the temporary emergency power supply 1 is a DC240V battery pack. The emergency power supply 4 is an emergency generator. The emergency feed transformer 6 is an AC450V/240V transformer; the emergency lighting distribution box 7 is an AC/DC230V emergency lighting distribution box. The charge-discharge plate 2 is a DC240V battery pack charge-discharge plate. The external switch box 3 is an external switch box of a DC240V storage battery pack. The temporary emergency lighting lamp 9 can be a fluorescent lamp (built-in electronic ballast) or an LED lamp (built-in power supply adaptive driver), and the light source can work normally under the condition of AC230V feeding or DC230V feeding to emit light for lighting.
The third emergency distribution board 53 is provided with a group of bus bars (AC/DC 230V single-phase bus bars), and two input ends of the group of bus bars are connected with the output end of the second emergency distribution board 52 and the output end of the external switch box 3; each output end of the busbar is connected with the input end of each emergency lighting distribution box 7; the respective output ends of each emergency lighting distribution box 7 are connected in parallel branches formed by a plurality of temporary emergency lighting fixtures 9 connected in parallel. The input end of the second emergency distribution board 52 is connected with the output end of the emergency feed transformer 6; the input end of the emergency feed transformer 6 is connected with the output end of the first emergency distribution board 51; the two input ends of the first emergency distribution board 51 are respectively connected with the main power supply feed network and the emergency power supply 4.
The third emergency distribution board 53 is fed by two power sources, one from the emergency feed transformer 6 and the other from the temporary emergency power source 1, for which an automatic switching function is provided: in a normal state, the busbar is fed by an emergency feed transformer 6, and AC230V feed is carried out on emergency illumination distribution boxes 7 at all positions of the whole ship through circuit breakers of all feed branches; when the power supply of the circuit of the emergency power supply transformer 6 fails and loses power, the power supply is automatically switched to the temporary emergency power supply 1 for power supply, and the bus bars feed DC230V to the downstream; when the power of the emergency feed transformer 6 is recovered, the power is automatically switched from the temporary emergency power supply 1 to the emergency feed transformer 6.
The input end of the external switch box 3 is connected with the temporary emergency power supply 1; the temporary emergency power supply 1 is connected with the main power supply feed network through the charge-discharge plate 2. The temporary emergency power supply 1 is also connected via a charge-discharge plate 2 to an emergency power supply feed network comprising an emergency power supply 4 and the remaining accessories.
In addition, the temporary emergency power supply 1 can adopt a maintenance-free sealed valve-controlled lead-acid storage battery pack, 120 unit cells of DC2V are connected in series to form a storage battery pack with rated voltage of DC240V, and according to the number of temporary emergency lighting lamps, the rated power and the duration of uninterrupted power supply, for example, the duration of half an hour, the capacity coefficient of the storage battery of 0.3 is considered, so that the capacity of the storage battery pack is estimated.
Under the condition of ship main and emergency power supply feeding, the temporary emergency power supply 1 is automatically charged by a charging and discharging plate, after the storage battery pack is fully charged, the charging voltage is automatically converted into floating charging voltage, trickle charging is kept, the loss caused by self-discharging of the battery is supplemented, and the electric quantity is kept sufficient. At this time, the main power supply or emergency power supply 4 is also feeding the first emergency distribution board 51, and is reduced to three-phase AC240V via the emergency feeding transformer 6, and is feeding the emergency lighting distribution box 7 via the second emergency distribution board 52 and the third emergency distribution board 53, and is feeding the temporary emergency lighting fixtures 9 distributed in each area of the ship via the plurality of feeding shunt breakers in the emergency lighting distribution box 7.
During the transition from the failure of the power supply of the main power supply to the start of the power supply of the emergency power supply 4 on the ship and during the failure of the power supply of both the main and emergency power supplies, the temporary emergency power supply 1 feeds the emergency lighting distribution boxes 7 via the external switch box 3 (the 2-pole direct current circuit breaker of which is normally in a closed state and which can be opened when the battery pack is maintained) and the third emergency distribution board 53, and then feeds the temporary emergency lighting fixtures 9 distributed in each area of the ship via a plurality of feed shunt circuit breakers in the emergency lighting distribution boxes 7.
The above embodiments are provided for illustrating the present invention and not for limiting the present invention, and various changes and modifications may be made by one skilled in the relevant art without departing from the spirit and scope of the present invention, and thus all equivalent technical solutions should be defined by the claims.
Claims (4)
1. The utility model provides a temporary emergency lighting feed system of boats and ships, external main power supply feed net, its characterized in that includes: a temporary emergency power supply (1), a charge-discharge board (2), an external switch box (3), an emergency power supply (4), a first emergency distribution board (51), a second emergency distribution board (52), a third emergency distribution board (53), an emergency feed transformer (6), a plurality of emergency lighting distribution boxes (7) and a plurality of temporary emergency lighting lamps (9),
the third emergency distribution board (53) is provided with a group of bus bars, and two input ends of the group of bus bars are connected with the output end of the second emergency distribution board (52) and the output end of the external switch box (3);
each output end of the busbar is connected with the input end of each emergency lighting distribution box (7);
each output end of each emergency lighting distribution box (7) is connected with a parallel branch formed by connecting a plurality of temporary emergency lighting lamps (9) in parallel;
the input end of the second emergency distribution board (52) is connected with the output end of the emergency feed transformer (6);
the input end of the emergency feed transformer (6) is connected with the output end of the first emergency distribution board (51);
two input ends of the first emergency distribution board (51) are respectively connected with the main power supply feed network and the emergency power supply (4);
the input end of the external switch box (3) is connected with the temporary emergency power supply (1);
the temporary emergency power supply (1) is connected with the main power supply feed network through the charge-discharge plate (2);
the temporary emergency power supply (1) is also connected with an emergency power supply feed network through the charge-discharge plate (2), and the emergency power supply feed network comprises the emergency power supply (4);
an automatic switching function is arranged on the bus bar in the third emergency distribution board (53).
2. The marine temporary emergency lighting feed system of claim 1, wherein the temporary emergency power supply (1) is a DC240V battery.
3. The marine temporary emergency lighting feed system of claim 1, wherein the emergency power supply (4) is an emergency generator.
4. The marine temporary emergency lighting feed system of claim 1, wherein the emergency feed transformer (6) is an AC450V/240V transformer;
the emergency lighting distribution box (7) is an AC/DC230V emergency lighting distribution box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010304433.1A CN111478424B (en) | 2020-04-17 | 2020-04-17 | Temporary emergency lighting feed system for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010304433.1A CN111478424B (en) | 2020-04-17 | 2020-04-17 | Temporary emergency lighting feed system for ship |
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| Publication Number | Publication Date |
|---|---|
| CN111478424A CN111478424A (en) | 2020-07-31 |
| CN111478424B true CN111478424B (en) | 2024-03-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010304433.1A Active CN111478424B (en) | 2020-04-17 | 2020-04-17 | Temporary emergency lighting feed system for ship |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012082082A2 (en) * | 2010-12-15 | 2012-06-21 | S Power Export-Import, S. R. O. | Main and emergency lighting circuitry |
| KR101336042B1 (en) * | 2013-08-19 | 2013-12-03 | 주식회사 나산전기산업 | Emergency power system with the solar system |
| CN106451753A (en) * | 2016-12-07 | 2017-02-22 | 江苏省镇江船厂（集团）有限公司 | Marine online direct-current power supply device |
| CN106655469A (en) * | 2016-12-23 | 2017-05-10 | 江苏省镇江船厂（集团）有限公司 | Marine interaction type GTO alternating current power supply apparatus |
| CN106793418A (en) * | 2017-01-24 | 2017-05-31 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | A kind of marine intelligent illuminator |
| CN206712539U (en) * | 2017-05-09 | 2017-12-05 | 中国人民解放军63686部队 | A kind of marine low-pressure continuous-current plant based on the autonomous management of multiple batteries |
| CN107800128A (en) * | 2017-11-06 | 2018-03-13 | 中国舰船研究设计中心 | A kind of ship integrated power system |
| CN108092407A (en) * | 2018-01-24 | 2018-05-29 | 上海振华重工(集团)股份有限公司 | A kind of ship emergency lighting system |
| CN110571920A (en) * | 2019-10-18 | 2019-12-13 | 四川创宏电气有限公司 | emergency power supply switching master control circuit and charging method |
| CN110710078A (en) * | 2017-05-25 | 2020-01-17 | 西门子股份公司 | Power supply system and method |
-
2020
- 2020-04-17 CN CN202010304433.1A patent/CN111478424B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012082082A2 (en) * | 2010-12-15 | 2012-06-21 | S Power Export-Import, S. R. O. | Main and emergency lighting circuitry |
| KR101336042B1 (en) * | 2013-08-19 | 2013-12-03 | 주식회사 나산전기산업 | Emergency power system with the solar system |
| CN106451753A (en) * | 2016-12-07 | 2017-02-22 | 江苏省镇江船厂（集团）有限公司 | Marine online direct-current power supply device |
| CN106655469A (en) * | 2016-12-23 | 2017-05-10 | 江苏省镇江船厂（集团）有限公司 | Marine interaction type GTO alternating current power supply apparatus |
| CN106793418A (en) * | 2017-01-24 | 2017-05-31 | 上海船舶研究设计院（中国船舶工业集团公司第六0四研究院） | A kind of marine intelligent illuminator |
| CN206712539U (en) * | 2017-05-09 | 2017-12-05 | 中国人民解放军63686部队 | A kind of marine low-pressure continuous-current plant based on the autonomous management of multiple batteries |
| CN110710078A (en) * | 2017-05-25 | 2020-01-17 | 西门子股份公司 | Power supply system and method |
| CN107800128A (en) * | 2017-11-06 | 2018-03-13 | 中国舰船研究设计中心 | A kind of ship integrated power system |
| CN108092407A (en) * | 2018-01-24 | 2018-05-29 | 上海振华重工(集团)股份有限公司 | A kind of ship emergency lighting system |
| CN110571920A (en) * | 2019-10-18 | 2019-12-13 | 四川创宏电气有限公司 | emergency power supply switching master control circuit and charging method |
Also Published As
| Publication number | Publication date |
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| CN111478424A (en) | 2020-07-31 |
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