CN207652128U - A kind of dual power supply uninterruptible power system - Google Patents
A kind of dual power supply uninterruptible power system Download PDFInfo
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- CN207652128U CN207652128U CN201721357870.XU CN201721357870U CN207652128U CN 207652128 U CN207652128 U CN 207652128U CN 201721357870 U CN201721357870 U CN 201721357870U CN 207652128 U CN207652128 U CN 207652128U
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Abstract
A kind of dual power supply uninterruptible power system provided by the utility model, including dual power automatic switching system and double power supply automatic switching switch ATS, wherein, dual power automatic switching system is connect with system dual power supply, double power supply automatic switching switch ATS connects load, and is connected by UPS devices between dual power automatic switching system and double power supply automatic switching switch ATS；This power supply system is designed mainly for the especially important emergency power supply for not allowing power failure load in enterprise's level-one electric load, dual power supply mode and the uninterrupted power supply function using UPS devices are provided, it completes and realizes to carry out dual power supply uninterrupted power supply to important load jointly, relatively reliable power supply guarantee is provided for load.
Description
Technical field
The utility model belongs to electric field, especially designs a kind of dual power supply uninterruptible power system.
Background technology
When carrying out 1,000,000 tons/year of polyvinyl chloride circulation comprehensives using project, main construction device includes chemical enterprise
1000000 tons/year of polyvinyl chloride, 800,000 tons/year of soda equipments, 4 × 125MW bleeder direct air-cooling turbine power generator and
2400000 tons/year of industrial residue cement plants, each DCS system, commutation system switch board and the control of part core equipment in project
Cabinet is all powered using UPS uninterrupted power supply as emergency power supply, 123 UPS devices is shared in entire project, still
It finds to have the following defects and failure in use：
1, after UPS devices therein board failure, load short circuit or overload, device itself cannot switch to bypass
Work leads to power failure, causes system important equipment dead electricity to lead to parking accident, larger economic loss is caused to enterprise.
2, UPS institutes bringing onto load is all especially important equipment, does not allow power failure.Therefore, in the process of actual motion
Middle UPS devices when needing repairing after UPS device faults itselfs, are removed not only without the time overhauled and safeguarded
To restoring electricity, the delayed time is also longer.
Invention content
The purpose of this utility model is to provide a kind of dual power supply uninterruptible power systems, solve existing UPS devices and exist
Above shortcomings when use.
In order to achieve the above object, the technical solution adopted in the utility model is：
A kind of dual power supply uninterruptible power system provided by the utility model, including dual power automatic switching system and double electricity
Source automatic transfer switch ATS, wherein dual power automatic switching system is connect with system dual power supply, double power supply automatic switching switch
ATS connects load, and is connected by UPS devices between dual power automatic switching system and double power supply automatic switching switch ATS.
Preferably, system dual power supply includes main power source and stand-by power supply, and dual power automatic switching system includes contactor KM1
With contactor KM2, wherein main power line is divided into two-way, wherein being connect all the way with contactor KM1 by circuit breaker Q F1；It is another
Road connects load end by circuit breaker Q F4.
Preferably, stand-by power supply circuit is connect with one end of circuit breaker Q F2, and the other end of circuit breaker Q F2 is divided into two-way,
In meet contactor KM2 all the way；Another way connects an input terminal of double power supply converting switch ATS.
Preferably, contactor KM1 and contactor KM2 are connect with the input terminal of UPS devices, the output termination of UPS devices
Another input terminal of double power supply converting switch ATS.
Preferably, dual power automatic switching system further includes intermediate relay KA, wherein main power source is to intermediate relay KA
Coil power supply, the coil series connection of the normally opened contact of intermediate relay KA, the normally-closed contact of contactor KM1 and contactor KM1, and connect
Tentaculum KM1 connects main power source；The coil string of the normally-closed contact of intermediate relay KA, the normally-closed contact of contactor KM2 and contactor KM2
Connection, and contactor KM2 connects stand-by power supply.
Preferably, the output end of double power supply converting switch ATS connects load by circuit breaker Q F3.
Compared with prior art, the utility model has the beneficial effects that：
A kind of dual power supply uninterruptible power system provided by the utility model, including dual power automatic switching system and double electricity
Source automatic transfer switch ATS, wherein dual power automatic switching system is connect with system dual power supply, double power supply automatic switching switch
ATS connects load, and is connected by UPS devices between dual power automatic switching system and double power supply automatic switching switch ATS.This confession
Electric system is designed mainly for the especially important emergency power supply for not allowing power failure load in enterprise's level-one electric load, is carried
For dual power supply mode and using the uninterrupted power supply function of UPS devices, completes and realize double to important load progress jointly
Power supply uninterrupted power supply provides relatively reliable power supply guarantee for load.
Further, UPS devices have dual power supply guarantee, only UPS ability in the case of two-way alternating current whole dead electricity
Using storage battery power supply, it can prevent battery from frequently discharging.
Further, the dual power supply automatic switching device of UPS devices power supply can be realized using two contactors, at
This low, stable and reliable operation, it is easier to repair.
Further, for UPS device faults itselfs the case where, devises the guarantee for automatically switching to stand-by power supply power supply
Measure improves the reliability of power supply.
Further, UPS devices on-line maintenance and maintenance function are devised, is needing maintenance or logging off to be examined
When repairing, circuit breaker Q F4, then cut-off breaker QF3 can be first closed, it is ensured that when safeguarding and service work, load will not have a power failure,
It brings great convenience to service work.
Description of the drawings
Fig. 1 is dual power supply uninterruptible power system principle schematic；
Fig. 2 is dual power automatic switching system principle schematic.
Specific implementation mode
Below in conjunction with the accompanying drawings, the utility model is further described.
As shown in Figure 1, a kind of dual power supply uninterruptible power system provided by the utility model, including Dual-power automatic switching
System and double power supply automatic switching switch ATS, wherein dual power automatic switching system is connect with system dual power supply, and dual power supply is certainly
Dynamic switching switch ATS connects load, and is filled by UPS between dual power automatic switching system and double power supply automatic switching switch ATS
Set connection.
System dual power supply includes main power source and stand-by power supply, and dual power automatic switching system includes contactor KM1 and contact
Device KM2, wherein main power line is divided into two-way, wherein being connect all the way with contactor KM1 by circuit breaker Q F1, composition normally makes
Main power circuit；Another way connects load end by circuit breaker Q F4, constitutes maintenance electric power loop.
Stand-by power supply circuit is connect with one end of circuit breaker Q F2, and the other end of circuit breaker Q F2 is divided into two-way, wherein all the way
Contactor KM2 is met, the stand-by power supply circuit of the main power circuit of UPS device normal uses is constituted；Another way connects dual power supply switching
An input terminal of switch ATS constitutes system reserve electric power loop.
Contactor KM1 and contactor KM2 are connect with the input terminal of UPS devices, and the output termination dual power supply of UPS devices is cut
Change another input terminal of switch ATS.
The output end of double power supply converting switch ATS connects load by circuit breaker Q F3.
As shown in Fig. 2, main power source is connected to contactor KM1, stand-by power supply is connected to dual power automatic switching system schematic diagram
Tentaculum KM2, contactor KM1 and contactor KM2 parallel connections are followed by UPS devices；Wherein, main power source A, C phase take 380V power supplys to
The coil power supply of intermediate relay KA；The normally opened contact of intermediate relay KA, the normally-closed contact of contactor KM1 and contactor KM1
Coil series connection after, the coil of contactor KM1 one termination main power source A phases, it is another termination main power source C phases；Intermediate relay
After the coil series connection of the normally-closed contact of device KA, the normally-closed contact of contactor KM2 and contactor KM21, the coil one of contactor KM2
Terminate the A phases of stand-by power supply, the C phases of another termination main power source.
The operation principle of this system:
The utility model is related to power supply system using dual power supply by three circuit powering loads be main respectively
Power supply-QF1-KM1-UPS-ATS-QF3- loads, this is the normal use power circuit of UPS devices all the way；Stand-by power supply-QF2-
KM2-UPS-ATS-QF3- is loaded, this is the stand-by power supply circuit of the normal use power circuit of UPS devices；Main power source and standby
Realize that Dual-power automatic switching is powered UPS devices with power utilization contactor KM1, KM2；
After UPS device faults itselfs lead to no output voltage, ATS double power supply converting switch automatically switches to system reserve
Power supply, specifically：This is loaded by stand-by power supply-QF2-ATS-QF3- to be powered all the way；
When being overhauled to UPS devices, this primary Ioops is loaded using main power source-QF4-, is safeguarding and overhauling UPS devices
When, it is only necessary to circuit breaker Q F4 is first closed, then is each turned off circuit breaker Q F1, circuit breaker Q F2 and circuit breaker Q F3, it can be by UPS
Device is isolated from system.
Claims (5)
1. a kind of dual power supply uninterruptible power system, it is characterised in that：It is automatic including dual power automatic switching system and dual power supply
Switch switch ATS, wherein dual power automatic switching system is connect with system dual power supply, and double power supply automatic switching switch ATS connects negative
It carries, and is connected by UPS devices between dual power automatic switching system and double power supply automatic switching switch ATS；System dual power supply
Including main power source and stand-by power supply, dual power automatic switching system includes contactor KM1 and contactor KM2, wherein main power line
Road is divided into two-way, wherein being connect all the way with contactor KM1 by circuit breaker Q F1；Another way connects load end by circuit breaker Q F4.
2. a kind of dual power supply uninterruptible power system according to claim 1, it is characterised in that：Stand-by power supply circuit with it is disconnected
One end of road device QF2 connects, and the other end of circuit breaker Q F2 is divided into two-way, wherein meeting contactor KM2 all the way；Another way connects double electricity
Source switches an input terminal of switch ATS.
3. a kind of dual power supply uninterruptible power system according to claim 1, it is characterised in that：Contactor KM1 and contact
Device KM2 is connect with the input terminal of UPS devices, another input of the output termination double power supply converting switch ATS of UPS devices
End.
4. a kind of dual power supply uninterruptible power system according to claim 1, it is characterised in that：Dual-power automatic switching system
System further includes intermediate relay KA, wherein main power source is touched to intermediate relay KA coil power supplies, the normally opened of intermediate relay KA
The coil of point, the normally-closed contact of contactor KM1 and contactor KM1 is connected, and contactor KM1 connects main power source；Intermediate relay KA
Normally-closed contact, contactor KM2 normally-closed contact and contactor KM2 coil series connection, and contactor KM2 connects stand-by power supply.
5. according to a kind of dual power supply uninterruptible power system of claim 1-4 any one of them, it is characterised in that：Dual power supply is cut
The output end for changing switch ATS connects load by circuit breaker Q F3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357870.XU CN207652128U (en) | 2017-10-20 | 2017-10-20 | A kind of dual power supply uninterruptible power system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721357870.XU CN207652128U (en) | 2017-10-20 | 2017-10-20 | A kind of dual power supply uninterruptible power system |
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| Publication Number | Publication Date |
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| CN207652128U true CN207652128U (en) | 2018-07-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721357870.XU Active CN207652128U (en) | 2017-10-20 | 2017-10-20 | A kind of dual power supply uninterruptible power system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996380A (en) * | 2019-03-04 | 2019-07-09 | 中广核研究院有限公司 | A kind of master control room of nuclear power station lighting system and method |
| CN110061561A (en) * | 2019-05-24 | 2019-07-26 | 宁波恒升电气有限公司 | A kind of fire-fighting tailored version dual power supply control equipment |
| CN110544980A (en) * | 2019-10-14 | 2019-12-06 | 黄向梅 | full-automatic uninterrupted power supply dual-power supply system |
| US11750111B2 (en) | 2021-10-05 | 2023-09-05 | Chicony Power Technology Co., Ltd. | Power supply device, power supply management module, and power supply management method |
-
2017
- 2017-10-20 CN CN201721357870.XU patent/CN207652128U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109996380A (en) * | 2019-03-04 | 2019-07-09 | 中广核研究院有限公司 | A kind of master control room of nuclear power station lighting system and method |
| CN110061561A (en) * | 2019-05-24 | 2019-07-26 | 宁波恒升电气有限公司 | A kind of fire-fighting tailored version dual power supply control equipment |
| CN110061561B (en) * | 2019-05-24 | 2023-03-17 | 宁波恒升电气有限公司 | Special dual-power control equipment for fire fighting |
| CN110544980A (en) * | 2019-10-14 | 2019-12-06 | 黄向梅 | full-automatic uninterrupted power supply dual-power supply system |
| US11750111B2 (en) | 2021-10-05 | 2023-09-05 | Chicony Power Technology Co., Ltd. | Power supply device, power supply management module, and power supply management method |
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