CN110429488A - A kind of direct current cabinet replacement portable load switching power supply box - Google Patents

A kind of direct current cabinet replacement portable load switching power supply box Download PDF

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Publication number
CN110429488A
CN110429488A CN201910489095.0A CN201910489095A CN110429488A CN 110429488 A CN110429488 A CN 110429488A CN 201910489095 A CN201910489095 A CN 201910489095A CN 110429488 A CN110429488 A CN 110429488A
Authority
CN
China
Prior art keywords
power supply
direct current
output end
switching power
supply box
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201910489095.0A
Other languages
Chinese (zh)
Inventor
李岩
艾蕾
冯兵
王洋
张志国
黄安山
孙朋
孙丛
韩丽华
芦汉昌
蔡峰
吴润洲
邱秀英
刘冰
路国栋
魏宏波
宋春蕾
张洪群
赵颖涵
刘立众
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Gaoqing Power Supply Company State Grid Shandong Electric Power Co
Original Assignee
Gaoqing Power Supply Company State Grid Shandong Electric Power Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Gaoqing Power Supply Company State Grid Shandong Electric Power Co filed Critical Gaoqing Power Supply Company State Grid Shandong Electric Power Co
Priority to CN201910489095.0A priority Critical patent/CN110429488A/en
Publication of CN110429488A publication Critical patent/CN110429488A/en
Pending legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/20Bus-bar or other wiring layouts, e.g. in cubicles, in switchyards
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02BBOARDS, SUBSTATIONS, OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26Casings; Parts thereof or accessories therefor
    • H02B1/46Boxes; Parts thereof or accessories therefor

Abstract

The invention discloses a kind of direct current cabinet replacement portable load switching power supply boxs, include fairing, battery group, feeder switch, control device, first output end, second output terminal and third output end, the input terminal of the fairing connects commercial power interface, commercial power interface is also connected with control device, control device is also connected with feeder switch, the output end of fairing connects battery group, battery group is also connected with feeder switch, feeder switch is also connected with the first output end, second output terminal and third output end, backup power source each section of DC screen of transformer substation of the present invention is incorporated into a system, its used modular circuit is few, therefore volume is reduced, alleviate quality, portability improves.Built-in control device can accurately set output voltage simultaneously, ensure that power quality, improve the operation stability of secondary power supply load.

Description

A kind of direct current cabinet replacement portable load switching power supply box
Technical field
The present invention relates to a kind of power supply box, specifically a kind of direct current cabinet replacement portable load switching power supply box.
Background technique
Substation, which refers in electric system, converts voltage and current, receives electric energy and distributes the place of electric energy.In Substation in power plant is primary substation, and effect is to be fed to high-voltage fence after the electric energy that generator issues boosts In.Direct current cabinet is mostly used to carry out all data monitoring in substation greatly.
Direct current cabinet full cut-off overhauls or needs interim DC power supply to replace direct current supply when replacing in substation at present, routinely faces When DC power supply figure it is huge, be not easy to carry movement, increase task difficulty and time, and Secondary Direct Electrical Resources power off time prolongs Length can bring great risk to safe operation of power system, it is therefore desirable to which the more high-end interim DC power supply of design uses.
Summary of the invention
The purpose of the present invention is to provide a kind of direct current cabinet replacement portable load switching power supply boxs, to solve above-mentioned back The problem of being proposed in scape technology.
To achieve the above object, the invention provides the following technical scheme:
A kind of replacement of direct current cabinet is transferred power supply box with portable load, include fairing, battery group, feeder switch, The input terminal of control device, the first output end, second output terminal and third output end, the fairing connects commercial power interface, Commercial power interface is also connected with control device, and control device is also connected with feeder switch, and the output end of fairing connects battery group, stores Battery pack is also connected with feeder switch, and feeder switch is also connected with the first output end, second output terminal and third output end.
As further technical solution of the present invention: the fairing is made of voltage reduction module and rectification module.
As further technical solution of the present invention: the fairing includes the resistance R1 and capacitor being connected in parallel with each other C1, resistance R1 also connect just between 220V power supply and rectifier T, are also connected in parallel to transient state between the foot 1 and foot 3 of rectifier T Voltage suppression diode D1, rectifier T are also respectively connected with capacitor C1 and resistance R2, and the other end of resistance R2 is separately connected capacitor C2 With the foot 1 of chip IC 1, the foot 2 of chip IC 1 connects the anode and ground of diode D2, and the foot 3 of chip IC 1 connects diode D2's Cathode and output voltage U1.
As further technical solution of the present invention: the diode D1 is zener diode, the voltage of output voltage U1 Value is 24V.
As further technical solution of the present invention: the model LM7824 of the chip IC 1.
As further technical solution of the present invention: the battery group is made of multiple lead-acid batteries.
As further technical solution of the present invention: being equipped with voltage conversion device inside the control device.
As further technical solution of the present invention: the control device is single-chip microcontroller.
As further technical solution of the present invention: the commercial power interface is two holes or three hole attaching plugs.
As further technical solution of the present invention: first output end, second output terminal and third output end it is defeated Voltage is adjustable out.
Compared with prior art, the beneficial effects of the present invention are: backup power source each section of DC screen of transformer substation of the present invention It is incorporated into a system, used modular circuit is few, therefore reduces volume, alleviates quality, and portability improves.Together When built-in control device can accurately set output voltage, ensure that power quality, improve the operation of secondary power supply load Stability.
Detailed description of the invention
Fig. 1 is overall schematic of the invention.
Fig. 2 is the circuit diagram of fairing.
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 Site preparation 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.
Embodiment 1: referring to Fig. 1, a kind of direct current cabinet replacement portable load switching power supply box, comprising for completing AC-DC conversion fairing, the battery group for storing electric energy, on or off circuit feeder switch, be used for Export control device, the first output end, second output terminal and the third output end of switch control, the input terminal of the fairing Commercial power interface is connected, commercial power interface is also connected with control device, and the inside of control device is equipped with voltage conversion device, such connection In order to power on not, but it is transferred to control device as city's electric signal, once mains failure, control device can make in time Response, control device is also connected with feeder switch, therefore when there is mains failure, control device will be opened by feeder switch Battery completes the emergency service to load, and the output end of fairing connects battery group, and battery group is also connected with feeder line and opens It closes, feeder switch is also connected with the first output end, second output terminal and third output end, by the way that three output ends, and three are arranged The voltage of a output end is adjustable, to meet the use demand of different loads.Wherein, fairing includes company parallel with one another The resistance R1 and capacitor C1 connect, resistance R1 also connect just between 220V power supply and rectifier T, between the foot 1 and foot 3 of rectifier T It is also connected in parallel to transient voltage suppressor diode D1, rectifier T is also respectively connected with capacitor C1 and resistance R2, and resistance R2's is another End is separately connected the foot 1 of capacitor C2 and chip IC 1, and the foot 2 of chip IC 1 connects the anode and ground of diode D2, the foot of chip IC 1 The cathode and output voltage U1 of 3 connection diode D2.Diode D1 is zener diode, and the voltage value of output voltage U1 is 24V. It after model LM7824, the 220V alternating current of chip IC 1 is by resistance R1 and capacitor C1 decompression, is rectified by rectifier T, output Voltage filtered by capacitor C1 and capacitor C2, finally with exporting after chip IC1 pressure stabilizing, circuit joined transient voltage and inhibit two Circuit is protected in pole pipe D1, the noise jamming that can effectively inhibit city's electro-mechanical wave to generate.
Embodiment 2, on the basis of embodiment 1, fairing is made of voltage reduction module and rectification module.It can not only be complete It is converted at AC-DC, also acts as the effect of decompression, battery group is made of multiple lead-acid batteries, save the cost, and control device is single Piece machine, performance stablize, it is low in energy consumption, commercial power interface be two holes or three hole attaching plugs, it is applied widely.
It is obvious to a person skilled in the art that invention is not limited to the details of the above exemplary embodiments, Er Qie In the case where without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter From the point of view of which point, the present embodiments are to be considered as illustrative and not restrictive, and the scope of the present invention is by appended power Benefit requires rather than above description limits, it is intended that all by what is fallen within the meaning and scope of the equivalent elements of the claims Variation is included within the present invention.Any reference signs in the claims should not be construed as limiting the involved claims.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (10)

1. a kind of direct current cabinet replacement portable load switching power supply box, includes fairing, battery group, feeder switch, control Device, the first output end, second output terminal and third output end processed, which is characterized in that the input terminal of the fairing connects Commercial power interface, commercial power interface are also connected with control device, and control device is also connected with feeder switch, and the output end of fairing, which connects, to be stored Battery pack, battery group are also connected with feeder switch, and feeder switch is also connected with the first output end, second output terminal and third output End.
2. a kind of direct current cabinet replacement portable load switching power supply box according to claim 1, which is characterized in that described Fairing is made of voltage reduction module and rectification module.
3. a kind of direct current cabinet replacement portable load switching power supply box according to claim 1, which is characterized in that described Fairing includes the resistance R1 and capacitor C1 being connected in parallel with each other, and resistance R1 also connects just between 220V power supply and rectifier T, It is also connected in parallel to transient voltage suppressor diode D1 between the foot 1 and foot 3 of rectifier T, rectifier T is also respectively connected with capacitor C1 With resistance R2, the other end of resistance R2 is separately connected the foot 1 of capacitor C2 and chip IC 1, and the foot 2 of chip IC 1 connects diode D2 Anode and ground, the foot 3 of chip IC 1 connects the cathode and output voltage U1 of diode D2.
4. a kind of direct current cabinet replacement portable load switching power supply box according to claim 3, which is characterized in that described Diode D1 is zener diode, and the voltage value of output voltage U1 is 24V.
5. a kind of direct current cabinet replacement portable load switching power supply box according to claim 3, which is characterized in that described The model LM7824 of chip IC 1.
6. a kind of direct current cabinet replacement portable load switching power supply box according to claim 1, which is characterized in that described Battery group is made of multiple lead-acid batteries.
7. a kind of direct current cabinet replacement portable load switching power supply box according to claim 1, which is characterized in that described Voltage conversion device is equipped with inside control device.
8. a kind of direct current cabinet replacement portable load switching power supply box according to claim 1, which is characterized in that described Control device is single-chip microcontroller.
9. a kind of direct current cabinet replacement portable load switching power supply box according to claim 1, which is characterized in that described Commercial power interface is two holes or three hole attaching plugs.
10. a kind of -6 any direct current cabinet replacement portable load switching power supply box, feature exist according to claim 1 In the output voltage of first output end, second output terminal and third output end is adjustable.
CN201910489095.0A 2019-06-06 2019-06-06 A kind of direct current cabinet replacement portable load switching power supply box Pending CN110429488A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910489095.0A CN110429488A (en) 2019-06-06 2019-06-06 A kind of direct current cabinet replacement portable load switching power supply box

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910489095.0A CN110429488A (en) 2019-06-06 2019-06-06 A kind of direct current cabinet replacement portable load switching power supply box

Publications (1)

Publication Number Publication Date
CN110429488A true CN110429488A (en) 2019-11-08

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910489095.0A Pending CN110429488A (en) 2019-06-06 2019-06-06 A kind of direct current cabinet replacement portable load switching power supply box

Country Status (1)

Country Link
CN (1) CN110429488A (en)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201967231U (en) * 2011-03-15 2011-09-07 珠海市崇光照明节能科技有限公司 High power constant output voltage-stabilizing circuit
CN202353291U (en) * 2011-12-05 2012-07-25 株洲电力勘测设计科研有限责任公司 Intelligent integrated power supply system for transformer substation
CN202602134U (en) * 2012-05-08 2012-12-12 山东电力集团公司莱芜供电公司 Portable DC system load transfer auxiliary tank
CN105226974A (en) * 2015-10-30 2016-01-06 快意电梯股份有限公司 For the supply unit of elevator internal contracting brake coil
CN106972769A (en) * 2017-05-16 2017-07-21 国网河南省电力公司平顶山供电公司 A kind of light current electrical load overvoltage crowbar
CN107947312A (en) * 2017-11-30 2018-04-20 国网河南省电力公司平顶山供电公司 A kind of constant-current source circuit for DC load
CN208423907U (en) * 2018-04-20 2019-01-22 国家电网公司 A kind of effective safe charging circuit for inhibiting peak voltage
CN208721067U (en) * 2017-11-01 2019-04-09 甘肃鸿烨电力高科技术有限公司 A kind of power circuit Iron tower incline detection alarm system

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN201967231U (en) * 2011-03-15 2011-09-07 珠海市崇光照明节能科技有限公司 High power constant output voltage-stabilizing circuit
CN202353291U (en) * 2011-12-05 2012-07-25 株洲电力勘测设计科研有限责任公司 Intelligent integrated power supply system for transformer substation
CN202602134U (en) * 2012-05-08 2012-12-12 山东电力集团公司莱芜供电公司 Portable DC system load transfer auxiliary tank
CN105226974A (en) * 2015-10-30 2016-01-06 快意电梯股份有限公司 For the supply unit of elevator internal contracting brake coil
CN106972769A (en) * 2017-05-16 2017-07-21 国网河南省电力公司平顶山供电公司 A kind of light current electrical load overvoltage crowbar
CN208721067U (en) * 2017-11-01 2019-04-09 甘肃鸿烨电力高科技术有限公司 A kind of power circuit Iron tower incline detection alarm system
CN107947312A (en) * 2017-11-30 2018-04-20 国网河南省电力公司平顶山供电公司 A kind of constant-current source circuit for DC load
CN208423907U (en) * 2018-04-20 2019-01-22 国家电网公司 A kind of effective safe charging circuit for inhibiting peak voltage

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Application publication date: 20191108

RJ01 Rejection of invention patent application after publication