CN103683488A - Direct-current power source screen with shielding box for double-silicon-chain voltage reduction device - Google Patents
Direct-current power source screen with shielding box for double-silicon-chain voltage reduction device Download PDFInfo
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- CN103683488A CN103683488A CN201310649932.4A CN201310649932A CN103683488A CN 103683488 A CN103683488 A CN 103683488A CN 201310649932 A CN201310649932 A CN 201310649932A CN 103683488 A CN103683488 A CN 103683488A
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Abstract
The invention discloses a direct-current power source screen with a shielding box for a double-silicon-chain voltage reduction device. The direct-current power source screen is characterized in that the direct-current power source screen comprises a cabinet body, the shielding box, a direct-current voltage stabilizing device, charge devices, a storage battery pack and the double-silicon-chain voltage reduction device, wherein the shielding box, the direct-current voltage stabilizing device, the charge devices, the storage battery pack and the double-silicon-chain voltage reduction device are arranged in the cabinet body, the shielding box is divided into a plurality of independent shielding chambers through partition plates, and the direct-current voltage stabilizing device, the charge devices, the storage battery pack and the double-silicon-chain voltage reduction device are arranged in the shielding chambers independently. All the electronic devices are placed in the shielding chambers independently, and the phenomenon that electromagnetic interference exists between the electronic devices after the electronic devices are powered on is avoided.
Description
Technical field
The present invention relates to a kind of DC power supply panel, be specifically related to a kind of DC power supply panel of the two silicon chain dropping equipments with shielding box.
Background technology
What the electric power operation power supply in power plant and transformer station adopted now is all DC power supply; and direct current cabinet is used for supplying this DC power supply; it provides power supply for control overhead and living load and direct current emergency lighting load etc., is the basis of contemporary electric power system control, protection.Modern science and technology, especially the development of computer technology and the communication technology, make electric power system towards the future development of comprehensive automation, power station unattended operation and networking centralized management, as the DC power system (direct current cabinet) of electric power system important component part, in order to make himself power quality, reliability all need further to be improved to automaticity, also therefore applied a large amount of advanced science and technology.It mainly throws system, charger control system, charger, direct current distribution system, type insulation monitoring system, general controller (system monitoring control system is the brain of direct current cabinet), flash system, communication system, these several most of compositions of storage battery mutually by electric power incoming line system (interchange inlet wire), power supply two-way.Wherein comprehensively control that device, two-way are thrown mutually, charger is controlled and the selection of charger is to guarantee the reliable key link of direct current cabinet.
General controller is responsible for monitoring direct current cabinet ruuning situation, and it will be had at fingertips to each link of direct current cabinet operation.And make system operate in optimum state.The battery inspection unit that it is controlled can be each joint storage battery voltage monitoring is provided, with deterioration of accumulator in discovery system as early as possible, change early storage battery, avoid under powering-off state, can not outwards providing in time the catastrophic effect of DC power supply because storage battery problem causes system.Type insulation monitoring system can protect direct current cabinet to damage equipment of itself or external equipment because of peripheral hardware or from system earth.The outfit of storage battery and choose reasonable thereof can guarantee system normal operation in the situation that of power-off, and can avoid the damage of direct current cabinet itself and cause the interruption to system power supply.What charger was generally all selected is the special-purpose high-frequency switching power supply module of electric power.The design of its hommization is simplified system, and reliability is splendid, and its price is also more reasonable.What general 220V 65Ah and following direct current cabinet were selected is all the special-purpose high-frequency switching power supply module of FR22005-1 type electric power; And the most use of the above direct current cabinet of 220V 65Ah is the product of Emerson.
DC power supply panel is occupied very consequence as important device such as control, protection, combined floodgates in electric power system, and its performance and reliability directly have influence on the normal safe operation of electric power system.Along with applying of supporting grid automation and unattended operation transformer station, the requirement of DC power supply panel is had to further raising.Insulating monitoring circuit can detect DC power supply panel whether short circuit of circuit at work, and when circuit median generatrix is too low or too high for voltage, can automatic alarm.
Summary of the invention
For above-mentioned prior art, the object of the present invention is to provide a kind of DC power supply panel of the two silicon chain dropping equipments with shielding box, prevent that power rectifier diode in single silicon chain dropping equipment is breakdown and cause the voltage imbalance of control bus.
In order to solve the problems of the technologies described above, the present invention adopts following technical scheme:
A kind of DC power supply panel of the two silicon chain dropping equipments with shielding box, it is characterized in that, comprise cabinet and be arranged on shielding box, direct-flow voltage stabilizer, charging device, batteries and the two silicon chain dropping equipments in cabinet, described shielding box is divided into several separate shielded enclosures by dividing plate; Direct-flow voltage stabilizer, charging device, batteries and two silicon chain dropping equipments are all arranged separately in each shielded enclosure;
Described two silicon chain dropping equipments are connected in parallel between batteries and control bus, each silicon chain dropping equipment is in series by 6～8 heavy-duty diodes, the output of silicon chain step-down dress is also in series with a light-emitting diode, the anode tap of silicon chain dropping equipment is connected with the output of batteries, and the cathode terminal of silicon chain element is connected to control bus.
Compared with prior art, the present invention has following beneficial effect:
One, it is in parallel that the present invention adopts two silicon chain dropping equipments, and when wherein a road silicon chain dropping equipment damages, another road silicon chain dropping equipment is still available, for electric current output provides guarantee; On silicon chain dropping equipment, be in series with light-emitting diode, when wherein a certain silicon chain dropping equipment is burned, light-emitting diode also can be burned no longer luminous, and this measure can remind staff to change in time;
Two, all electronic devices are placed on separately in shielded enclosure, have avoided existing each other after electronic device energising the phenomenon of electromagnetic interference.
Accompanying drawing explanation
Fig. 1 is structure principle chart of the present invention.
Fig. 2 is appearance assumption diagram of the present invention;
Reference numeral is: 1 is that shielding box, 2 is that dividing plate, 3 is shielded enclosure.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the invention will be further described.
A kind of DC power supply panel of the two silicon chain dropping equipments with shielding box, it is characterized in that, comprise cabinet and be arranged on shielding box, direct-flow voltage stabilizer, charging device, batteries and the two silicon chain dropping equipments in cabinet, described shielding box is divided into several separate shielded enclosures by dividing plate; Direct-flow voltage stabilizer, charging device, batteries and two silicon chain dropping equipments are all arranged separately in each shielded enclosure;
Described two silicon chain dropping equipments are connected in parallel between batteries and control bus, each silicon chain dropping equipment is in series by 6～8 heavy-duty diodes, the output of silicon chain step-down dress is also in series with a light-emitting diode, the anode tap of silicon chain dropping equipment is connected with the output of batteries, and the cathode terminal of silicon chain element is connected to control bus.
The present invention adopts two silicon chain dropping equipments in parallel, and when wherein a road silicon chain dropping equipment damages, another road silicon chain dropping equipment is still available, for electric current output provides guarantee; On silicon chain dropping equipment, be in series with light-emitting diode, when wherein a certain silicon chain dropping equipment is burned, light-emitting diode also can be burned no longer luminous, and this measure can remind staff to change in time.
Claims (1)
1. the DC power supply panel with two silicon chain dropping equipments of shielding box, it is characterized in that, comprise cabinet and be arranged on shielding box, direct-flow voltage stabilizer, charging device, batteries and the two silicon chain dropping equipments in cabinet, described shielding box is divided into several separate shielded enclosures by dividing plate; Direct-flow voltage stabilizer, charging device, batteries and two silicon chain dropping equipments are all arranged separately in each shielded enclosure;
Described two silicon chain dropping equipments are connected in parallel between batteries and control bus, each silicon chain dropping equipment is in series by 6～8 heavy-duty diodes, the output of silicon chain step-down dress is also in series with a light-emitting diode, the anode tap of silicon chain dropping equipment is connected with the output of batteries, and the cathode terminal of silicon chain element is connected to control bus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310649932.4A CN103683488A (en) | 2013-12-06 | 2013-12-06 | Direct-current power source screen with shielding box for double-silicon-chain voltage reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310649932.4A CN103683488A (en) | 2013-12-06 | 2013-12-06 | Direct-current power source screen with shielding box for double-silicon-chain voltage reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103683488A true CN103683488A (en) | 2014-03-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310649932.4A Pending CN103683488A (en) | 2013-12-06 | 2013-12-06 | Direct-current power source screen with shielding box for double-silicon-chain voltage reduction device |
Country Status (1)
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| CN (1) | CN103683488A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201758A (en) * | 2014-07-30 | 2014-12-10 | 四川省华电成套设备有限公司 | Direct-current power supply screen having electromagnetic shielding function |
-
2013
- 2013-12-06 CN CN201310649932.4A patent/CN103683488A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104201758A (en) * | 2014-07-30 | 2014-12-10 | 四川省华电成套设备有限公司 | Direct-current power supply screen having electromagnetic shielding function |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140326 |