CN109274173A - A kind of dual redundant power supply system - Google Patents
A kind of dual redundant power supply system Download PDFInfo
- Publication number
- CN109274173A CN109274173A CN201811207372.6A CN201811207372A CN109274173A CN 109274173 A CN109274173 A CN 109274173A CN 201811207372 A CN201811207372 A CN 201811207372A CN 109274173 A CN109274173 A CN 109274173A
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- China
- Prior art keywords
- power supply
- contactor
- ups
- load
- mains
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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
- H02J9/04—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
-
- 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
-
- 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
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Stand-By Power Supply Arrangements (AREA)
Abstract
The invention discloses a kind of dual redundant power supply systems, system includes mains-supplied power supply, UPS power supply, contactor normally closed switch and contactor normal open switch, contactor normally closed switch is set between mains-supplied power supply and load, contactor normal open switch is set between UPS power supply and load.Dual redundant power supply system provided by the present application is by being arranged contactor between mains-supplied power supply and load, contactor is set between UPS power supply and load, contactor is also powered by UPS power supply, when UPS power supply works normally, contactor obtains electric, and UPS power supply is through contactor normally open contact powering load；When UPS power supply breaks down, contactor power loss, mains-supplied power supply is via normally closed interlock to power supply of being in debt；Can prevent in this way UPS power supply when breaking down it is caused have a power failure to equipment impact damage greatly, can be equipment continued power, and the application UPS power supply can have long-term Electrical Discharge Machine can prevent battery power reservoir capacity reduce.
Description
Technical field
The present invention relates to power supply technique field, in particular to a kind of dual redundant power supply system.
Background technique
The scheme of electric power of current device includes: the distribution of DCS distribution, PLC distribution and industrial personal computer.The distribution system of DCS
Are as follows: in addition AC220V inlet wire two-way is alternating current wherein being all the way UPS all the way.A way switch is respectively mounted under two-way AC220V power supply
AC220V is converted to DC24V by power supply, and two-way 24V power supply paired running provides electric energy for DCS.The scheme of electric power of PLC are as follows:
AC220V alternating current provides electric energy after UPS pressure stabilizing for PLC device, and after alternating current power down, UPS is automatically inverse by the electric energy in battery
Become AC220V and provides electric energy for PLC device.The scheme of electric power of industrial personal computer are as follows: powered by alternating current or UPS.
Have some disadvantages: that alternating current is directly included in equipment when first three equipment scheme of electric power, stop power transmission impact greatly to
Equipment is damaged.The scheme of electric power of industrial personal computer can only from UPS or alternating current distribution, wherein all the way power failure when, computer lose
Electricity and be unable to normal operating, current scheme of electric power is not accomplished as equipment uninterrupted power supply.Under normal operation, UPS
Almost without the chance of electric discharge, lead to the reduction of battery power reservoir capacity.And when UPS inversion being needed to power, it cannot effectively set instead
It is standby that electric energy is provided.In the insufficient situation of battery power reservoir capacity, UPS has only served the effect of pressure stabilizing.
Summary of the invention
This application provides a kind of dual redundant power supply systems, to solve to rush equipment when scheme of electric power has a power failure in the prior art
It hits and damages greatly, the reduction of battery power reservoir capacity cannot be will lead to without Electrical Discharge Machine for a long time for equipment uninterrupted power supply and UPS
The problem of.
In order to solve the above-mentioned technical problem the invention provides the following technical scheme:
The system comprises mains-supplied power supply, UPS power supply, contactor normally closed switch and contactor is normally opened opens
It closes, the mains-supplied power supply and the UPS power supply are connected in parallel；
The mains-supplied power supply is used to supply to load, the contactor normally closed switch and the contactor normal open switch
Electricity is provided with contactor normally closed switch between the mains-supplied power supply and load；
The UPS power supply is used to power to the load, and it is normal to be provided with contactor between the UPS power supply and load
Switch；
The contactor normally closed switch and contactor normal open switch are used for the on-off of control circuit.
Preferably, breaker is provided between the mains-supplied power supply and the UPS power supply and load；
The breaker is used for disengagement failure circuit.
Preferably, multiple loads are provided in the system, the mains-supplied power supply and the UPS power supply and more
Breaker is provided between a load.
Preferably, multiple loads include: PLC rack, computer and control cabinet.
Preferably, rectifier, the UPS power supply and load are provided between the mains-supplied power supply and load
Between be provided with rectifier；
The rectifier is used to convert DC current for alternating current.
Preferably, alarm contact is provided between the mains-supplied power supply and load；
The alarm contact is for issuing alarm signal when the UPS power supply failure.
Dual redundant power supply system provided by the present application includes mains-supplied power supply, UPS power supply, contactor normally closed switch
And contactor normal open switch, the mains-supplied power supply and the UPS power supply are connected in parallel；The mains-supplied power supply
For to load, the contactor normally closed switch and contactor normal open switch power supply, the mains-supplied power supply and negative
Contactor normally closed switch is provided between load；The UPS power supply is for powering to the load, the UPS power supply and negative
Contactor normal open switch is provided between load；The contactor normally closed switch and contactor normal open switch are for the logical of control circuit
It is disconnected.Dual redundant power supply system provided by the present application between mains-supplied power supply and load by being arranged contactor, UPS power supply electricity
Contactor is set between source and load, and contactor includes two pairs of normal open switch and normally open contact and two pairs of normally closed switch and normally closed touching
Head.Since contactor is also powered by UPS power supply, when UPS power supply works normally, contactor obtains electric, UPS power supply electricity
Source is through contactor normally open contact powering load；When UPS power supply breaks down, contactor power loss, mains-supplied power supply
Via normally closed interlock to power supply of being in debt；It can prevent UPS power supply is caused when breaking down to have a power failure to equipment impact in this way
It damages greatly, can be equipment continued power, and the UPS power supply of the application can have long-term Electrical Discharge Machine that can prevent battery
Power reservoir capacity reduces.
Detailed description of the invention
It in order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, below will be to institute in embodiment
Attached drawing to be used is needed to be briefly described, it should be apparent that, the accompanying drawings in the following description is only some implementations of the invention
Example, for those of ordinary skill in the art, without creative efforts, can also obtain according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of dual redundant power supply system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram for the dual redundant power supply system that another embodiment of the present invention provides；
Fig. 3 is the structural schematic diagram for the dual redundant power supply system that another embodiment of the present invention provides.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Whole description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1, being the structural schematic diagram of dual redundant power supply system provided in an embodiment of the present invention.System includes alternating current
Power supply 1, UPS power supply 2, contactor normally closed switch 3 and contactor normal open switch 4, the mains-supplied power supply (1)
It is connected in parallel with the UPS power supply 2.
Wherein, mains-supplied power supply 1: industrial-frequency alternating current (AC) of the alternating current i.e. described in us, common three amounts of alternating current
To characterize: voltage, electric current, frequency.The common alternating current work frequency of countries in the world has 50Hz (hertz) and 60Hz (hertz) two
Kind, civilian alternating voltage distribution is by 100V to 380V etc..Computer room is typically led to three-phase 380V, the alternating current of 50HZ as power supply,
But the power rectifier module of equipment be single-phase 220V voltage.Whole world alternating current has different voltage standard, such as me
State is generally 220V (volt), and Japan is 110V (volt), and the U.S. is 110V (volt).Popular point says that alternating current is exactly to be different from power generation
Electricity, that is, the electric power resource extracted inside the power grid of government.
UPS power supply 2:UPS (Uninterruptible Power System), i.e. uninterruptible power supply, are that one kind contains
There is energy storage device, using inverter as the uninterruptible power supply of the constant voltage constant frequency of chief component.Be mainly used for single computer,
Computer network system or other power electronic equipments provide continual power supply.When alternating current input is normal, UPS is by city
It is supplied to load to use after electric pressure stabilizing, UPS at this time is exactly an electric main voltage-stablizer, while it is also filled to self-contained battery
Electricity；When commercial power interruption (forced outage), square normal load that UPS is converted immediately by the electric energy of self-contained battery, by inversion after
Continuous supply 220V alternating current makes load maintain to work normally and protects load soft and hardware not damaged.UPS equipment is usually to electricity
The too low all offers protection of big and voltage is provided.UPS can ensure computer system work on after power failure a period of time with
It allows users to promptly deposit, making user, reason does not have a power failure and influences work or lose data.Ups power system is by five part groups
At: the power supply input circuits such as main road, bypass, battery carry out the rectifier (REC) of AC/DC transformation, carry out the inverse of DC/AC transformation
Become device (INV), inversion and bypass output switching circuit and energy storage battery.The voltage stabilizing function of its system is usually complete by rectifier
At, rectifying device uses silicon-controlled or high-frequency switching rectifier, and output amplitude can be controlled according to the variation of dispatch from foreign news agency by itself having
Function, thus (variation should meet system requirements), the rectified voltage that output amplitude is basically unchanged when dispatch from foreign news agency changes.
In electrotechnics, controlled because can quickly cut off exchange and direct current major loop and can be frequently switched on high current
The device of (certain types are up to 800 amperes) circuit also is used as controlling so often applying to motor as Kong Dui Xiang ﹐
Work factory, which sets electrical loads, the contactors such as the hot device ﹑ machine-tool of standby ﹑ electricity and various kinds electric power unit, can not only be switched on and off circuit,
But also there is the effect of low-voltage release guard.Contactor control capability is big, is suitable for frequent operation and far distance control.It is certainly
One of critical elements in autocontrol system.The working principle of contactor is exactly by controlling the auxiliary contact connect in control circuit
On-off control the requirement for connecing the on-off in the main contacts of main circuit to reach control circuit.The embodiment of the present application is using exchange
Contactor.Contactor includes contactor normally closed switch 3 and contactor normal open switch 4,.
The mains-supplied power supply 1 is provided between the mains-supplied power supply 1 and load and contacts for powering to the load
Device normally closed switch 3, the UPS power supply 2 are used for normally opened to load, the contactor normally closed switch 3 and the contactor
Switch 4 is powered, and is provided with contactor normal open switch 4 between the UPS power supply 2 and load；The contactor normally closed switch 3
The on-off of control circuit is used for contactor normal open switch 4.
Dual redundant power supply system provided by the present application includes mains-supplied power supply 1, UPS power supply 2, contactor is normally closed opens
Pass 3 and contactor normal open switch 4, the mains-supplied power supply 1 and the UPS power supply 2 are connected in parallel；The alternating current supplies
Power supply 1 is provided with contactor normally closed switch 3 between the mains-supplied power supply 1 and load for powering to the load；It is described
UPS power supply 2 is used for load, the contactor normally closed switch 3 and the contactor normal open switch 4 power supply, the UPS
Contactor normal open switch 4 is provided between power supply 2 and load；The contactor normally closed switch 3 and contactor normal open switch 4
On-off for control circuit.Dual redundant power supply system provided by the present application between mains-supplied power supply 1 and load by setting
Set contactor, contactor be set between UPS power supply 2 and load, contactor include two pairs of normal open switch 4 and normally open contact and
Two pairs of normally closed switch 3 are normally closed interlock.Since contactor is also powered by UPS power supply 2, when UPS power supply 2 works normally
When, contactor obtains electric, and UPS power supply 2 is through contactor normally open contact powering load；When 2 failures occur for UPS power supply
When, contactor power loss, mains-supplied power supply 1 is via normally closed interlock to power supply of being in debt；It can prevent UPS power supply 2 from sending out in this way
Caused have a power failure damages greatly equipment impact when raw failure, can be equipment continued power, and the UPS of the application powers
Power supply 2 can have long-term Electrical Discharge Machine that can prevent the reduction of battery power reservoir capacity.
In the application preferred embodiment, set between the mains-supplied power supply 1 and the UPS power supply 1 and load
It is equipped with breaker 4, the breaker 4 is used for disengagement failure circuit.Breaker (English name: circuit-breaker,
Circuit breaker) it is the electric current referred to close, carry and cut-off under normal loop condition and can closes, defined
The switching device of the electric current under abnormal loop condition is carried and cut-off in time.Breaker is divided into high pressure open circuit by its use scope
Device and low-voltage circuit breaker, high-low pressure identification of boundaries is relatively fuzzyyer, and 3kV or more is generally known as High-Voltage Electrical Appliances.Breaker is available
Distribute electric energy, infrequently start asynchronous motor, the implementations such as power circuit and motor are protected, when they occur it is serious
Overload or short circuit and when the failures such as under-voltage can automatic shutdown circuit, function be equivalent to Fuse switch and cross underheat after
The combination of electric appliance etc..And change components are not needed generally after disjunction fault current.Electricity generation, conveying, in use, matching
Electricity is an extremely important link.Distribution system includes transformer and various high and low voltage electrical equipment equipment, and low-voltage circuit breaker is then
It is a kind of to use the electric appliance having a large capacity and a wide range.Live every equipment is all connected to input and output breaker, and inversion exports the unified dress of breaker
The inverter cabinet back side is fitted over, and posts mark, field device input breaker is assemblied at field device, and posts mark.Each
Circuit breaker trip electric current is assembled according to field device carry calculation, is prevented because arbitrarily additional equipment increases for power supply line's failure and scene
Application of load causes inversion tripping and failure without output phenomenon.
In the application preferred embodiment, it is provided with multiple loads in the system, the mains-supplied power supply 1 and described
Breaker 4 is provided between UPS power supply 1 and multiple loads.
In the application preferred embodiment, referring to Fig. 1, multiple loads can include but is not limited to: PLC rack 5, computer 6
And control cabinet 7.The distribution system of DCS are as follows: in addition AC220V inlet wire two-way is alternating current wherein being all the way UPS all the way.Two-way
It is respectively mounted Switching Power Supply all the way under AC220V power supply, AC220V is converted into DC24V, two-way 24V power supply paired running is DCS
Electric energy is provided.The scheme of electric power of PLC are as follows: AC220V alternating current provides electric energy after UPS pressure stabilizing for PLC device, after alternating current power down,
UPS provides the electric energy inversion in battery to electric energy for AC220V automatically for PLC device.The scheme of electric power of industrial personal computer are as follows: by city
Electricity or UPS power supply.The scheme that the embodiment of the present application can solve DCS distribution and industrial personal computer distribution simultaneously easily caused after power failure compared with
Big impact failure, pressure stabilizing can only be played the role of by being able to solve UPS in PLC scheme of electric power, and the embodiment of the present application can be applicable in
Match electricity demanding in plurality of devices.
In the application preferred embodiment, figure, the 2 dual redundant power supply systems provided for another embodiment of the present invention are please referred to
The structural schematic diagram of system is provided with rectifier 8 between the mains-supplied power supply 1 and load, the UPS power supply 2 with it is negative
Rectifier 8 is provided between load, the rectifier 8 is used to convert DC current for alternating current.Rectifier (English:
Rectifier) it is the device for alternating current being converted into direct current, can be used for power supply unit and detecting wireless electric signal etc..Rectification
Device can be by vacuum tube, ignitron, solid-state silicon semiconductor diode, and mercury arc etc. is made.On the contrary, a set of direct current is converted is struck a bargain
The device of galvanic electricity is then known as " inverter " (inverter).It only needs to charge a battery in spare UPS, not need to negative
It carries and powers, therefore only charger.In double transformation UPS, this device is not only inverter power supply, but also is charged a battery, therefore is known as
Rectifier/charger.Rectifier is a fairing, is briefly exactly that will exchange the dress that (AC) is converted into direct current (DC)
It sets.There are two major functions for it: first, alternating current (AC) is become into direct current (DC), load, or supply are supplied after filtering
Inverter；Second, charging voltage is provided to battery, therefore, it plays the role of a charger again simultaneously.
In the application preferred embodiment, referring to Fig. 3, being provided with alarm between the mains-supplied power supply 1 and load
Contact 9, the alarm contact 9 is for issuing alarm signal when 2 failure of UPS power supply.Scene is inverse when warning output
Become cabinet buzzer alert, prompts on-the-spot make an inspection tour maintenance personnel.
In addition, the auto charge and discharge scheme of UPS: periodically cutting off UPS incoming power, UPS is switched to inverter mode, electric discharge
After set time, UPS incoming power is put into.This function is by Automatic control of single chip microcomputer.Inversion system battery is periodically filled
Inversion input city is electrically cut off according to produced on-site situation when test, has battery by inversion output, work as storage by discharge test
When cell voltage reaches the 210V of setting, it is switched to alternating current input power supply.
Other improvement projects of power supply system: the current supply circuit of DCS, PLC device, industrial personal computer and important equipment is advised again
It draws, live DCS, PLC device, industrial personal computer are all exported from inverter cabinet per powering all the way, per output input all the way according to configuration of load
Breaker, no longer branch at the scene of power supply line, large area electrical equipment power down thing caused by avoiding because of power supply line's failure all the way
Therefore occur or because breaker protection voltage is too high, when line short fault can not quick-break effective protection contravariant equipment.Industry control is electromechanical
Source plug is directly connected to inversion output, cancels the reserved jack in scene, and overload caused by accessing other equipment because of scene is avoided to trip
Phenomenon.
Those skilled in the art after considering the specification and implementing the invention disclosed here, will readily occur to of the invention its
Its embodiment.This application is intended to cover any variations, uses, or adaptations of the invention, these modifications, purposes or
Person's adaptive change follows general principle of the invention and including the undocumented common knowledge in the art of the present invention
Or conventional techniques.The description and examples are only to be considered as illustrative, and true scope and spirit of the invention are by following
Claim is pointed out.
It should be understood that the present invention is not limited to the precise structure already described above and shown in the accompanying drawings, and
And various modifications and changes may be made without departing from the scope thereof.The scope of the present invention is limited only by the attached claims.
Claims (6)
1. a kind of dual redundant power supply system, which is characterized in that the system comprises mains-supplied power supplys (1), UPS power supply
(2), contactor normally closed switch (3) and contactor normal open switch (4), the mains-supplied power supply (1) and UPS power supply electricity
Source (2) is connected in parallel；
The mains-supplied power supply (1) is provided between the mains-supplied power supply (1) and load and contacts for powering to the load
Device normally closed switch (3)；
The UPS power supply (2) is used for load, the contactor normally closed switch (3) and the contactor normal open switch
(4) it powers, is provided with contactor normal open switch (4) between the UPS power supply (2) and load；
The contactor normally closed switch (3) and contactor normal open switch (4) are used for the on-off of control circuit.
2. dual redundant power supply system as described in claim 1, which is characterized in that the mains-supplied power supply (1) and the UPS
Breaker (4) are provided between power supply (1) and load；
The breaker (4) is used for disengagement failure circuit.
3. dual redundant power supply system as described in claim 1, which is characterized in that be provided with multiple loads, institute in the system
It states and is provided with breaker (4) between mains-supplied power supply (1) and the UPS power supply (1) and multiple loads.
4. dual redundant power supply system as claimed in claim 3, which is characterized in that multiple loads include: PLC rack (5), computer
(6) and control cabinet (7).
5. dual redundant power supply system as described in claim 1, which is characterized in that the mains-supplied power supply (1) and load
Between be provided with rectifier (8), the UPS power supply (2) and load between be provided with rectifier (8)；
The rectifier (8) is used to convert DC current for alternating current.
6. dual redundant power supply system as described in claim 1, which is characterized in that the mains-supplied power supply (1) and load
Between be provided with alarm contact (9)；
The alarm contact (9) is for issuing alarm signal when UPS power supply (2) failure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811207372.6A CN109274173A (en) | 2018-10-17 | 2018-10-17 | A kind of dual redundant power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811207372.6A CN109274173A (en) | 2018-10-17 | 2018-10-17 | A kind of dual redundant power supply system |
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| Publication Number | Publication Date |
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| CN109274173A true CN109274173A (en) | 2019-01-25 |
Family
ID=65197418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811207372.6A Pending CN109274173A (en) | 2018-10-17 | 2018-10-17 | A kind of dual redundant power supply system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018720A (en) * | 2019-05-31 | 2020-12-01 | 核工业理化工程研究院 | Power failure protection method and protection system of power supply system based on PLC control |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746447A (en) * | 2013-12-25 | 2014-04-23 | 河南辉煌科技股份有限公司 | Automatic switching method of redundant AC power |
| CN203722328U (en) * | 2014-01-02 | 2014-07-16 | 山西太钢不锈钢股份有限公司 | Apparatus capable of automatically switch power frequency electric supply in case of UPS own faults |
| CN105790432A (en) * | 2016-05-28 | 2016-07-20 | 唐山三友氯碱有限责任公司 | Multi-redundancy DCS power supply device having alarm function |
| CN206302204U (en) * | 2016-11-18 | 2017-07-04 | 中国电力建设股份有限公司 | A kind of micro grid control system for container-type data center |
-
2018
- 2018-10-17 CN CN201811207372.6A patent/CN109274173A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746447A (en) * | 2013-12-25 | 2014-04-23 | 河南辉煌科技股份有限公司 | Automatic switching method of redundant AC power |
| CN203722328U (en) * | 2014-01-02 | 2014-07-16 | 山西太钢不锈钢股份有限公司 | Apparatus capable of automatically switch power frequency electric supply in case of UPS own faults |
| CN105790432A (en) * | 2016-05-28 | 2016-07-20 | 唐山三友氯碱有限责任公司 | Multi-redundancy DCS power supply device having alarm function |
| CN206302204U (en) * | 2016-11-18 | 2017-07-04 | 中国电力建设股份有限公司 | A kind of micro grid control system for container-type data center |
Non-Patent Citations (1)
| Title |
|---|
| 崔晶等主编: "《电力机车电器》", 30 August 2016, 西南交通大学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112018720A (en) * | 2019-05-31 | 2020-12-01 | 核工业理化工程研究院 | Power failure protection method and protection system of power supply system based on PLC control |
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Application publication date: 20190125 |