CN202721367U - Movable overhauling power supply system special for direct-current screen - Google Patents
Movable overhauling power supply system special for direct-current screen Download PDFInfo
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- CN202721367U CN202721367U CN 201120480649 CN201120480649U CN202721367U CN 202721367 U CN202721367 U CN 202721367U CN 201120480649 CN201120480649 CN 201120480649 CN 201120480649 U CN201120480649 U CN 201120480649U CN 202721367 U CN202721367 U CN 202721367U
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- power supply
- rectification module
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Abstract
The utility model discloses a movable overhauling power supply system special for a direct-current screen, which comprises four modules, namely a rectification module, a feeder line module, a detection module and a multi-way ceaseless change-over switch module. The input of the rectification module is connected with three-phase alternating-current electric supply to generate control bus and closing bus direct-current power supplies. The feeder line module comprises three groups of insertion terminals, wherein 1. access ends of control bus and closing bus direct-current power supplies generated by the rectification module; 2. access ends of control bus and closing bus direct-current power supplies of an overhauled direct-current screen; and 3. connection ports of multi-way feeder lines. The detection module is used for detecting the input and output of the rectification module and detecting the voltage/current of each feeder line loop. The width of the moving contact of a multi-way ceaseless change-over switch (a transition exchange switch) is greater than the space between two-way static contacts. The movable overhauling power supply system provided by the invention has the advantages that uninterrupted power pulling back can be realized. The system is convenient to move, and error operation generated by wiring can be avoided. The operation mode is safe, simple and rapid, and the overhauling efficiency is improved.
Description
Technical field
The utility model is the interim substitute electric power for the DC screen of transformer substation trouble shooting procedure.Belong to electric power system power station equipment operation and maintenance technical field.
Background technology
Direct current system provides DC power supply for control, signal, relaying protection, automatics and emergency lighting etc. in the transformer station; it also provides reliable operating power for operation; direct current system reliably whether; safe operation to transformer station plays vital effect, is the assurance of substation safety operation.Direct current system has a very wide distribution in transformer station, exposed parts is many, cable is many and longer.So be easy to break down.When direct current cabinet overhauls, usually to use an interim substitute electric power of independence, help maintenance to find out fault.The power source special that also is not used at present maintenance.
Summary of the invention
The purpose of this utility model provides a kind of direct current cabinet dedicated removable maintenance power-supply system, conveniently moving, and the misoperation of avoiding wiring to produce, mode of operation is safe, simple and direct, the raising overhaul efficiency.
The technical solution of the utility model is: direct current cabinet dedicated removable maintenance power-supply system is comprised of 4 modules: rectification module, feed line module, detection module, the uninterrupted diverter switch module of multichannel;
The input of rectification module connects the three-phase alternating current civil power, produces the control mother, closes female two-way DC power supply;
Feed line module has three groups of incoming ends: the control that 1 rectification module produces is female, close female two-way DC power supply incoming end; 2 female by the control of maintenance direct current cabinets, close female two-way DC power supply incoming end; 3 multichannel feeder line connectivity ports;
Detection module: 1 detects input, the output of rectification module; 2 detect the voltage/current of each feeder assembly;
The uninterrupted diverter switch of multichannel (transition diverter switch), the width of its moving contact is greater than the interval between the two-way fixed contact.Can realize uninterruptible power back.
[0005] direct current cabinet dedicated removable maintenance power-supply system is installed in two special electric cabinets of making, and electric cabinet bottom is with roller, and is mobile very convenient.Connect with aviation plug between the electricity cabinet.
The technical solution of the utility model and operation principle are:
Rectification module produces control bus, closes female DC power supply with totally 4 of HD22010, is connected to feed line module with aviation plug.DC power supply (control bus, closing bus bar) by maintenance direct current cabinet direct current cabinet also is connected to feed line module with aviation plug.Multichannel feeder line connectivity port can uninterruptedly be switched between two-way DC power supply (being overhauled direct current cabinet direct current cabinet and rectification module) by the uninterrupted diverter switch of multichannel.Detection module adopt PLC or Single Chip Microcomputer (SCM) system finish rectification module the I/O monitoring and the voltage/current monitoring of each feeder assembly.
Direct current cabinet dedicated removable maintenance power-supply system of the present utility model the feed line module that the two-way DC power supply all accesses, is installed in the electric cabinet with roller conveniently moving, handling safety.
Direct current cabinet dedicated removable maintenance power-supply system of the present utility model has been equipped with detection module, makes things convenient for trouble shoot in maintenance.
Direct current cabinet dedicated removable maintenance power-supply system of the present utility model adopts custom-designed Manual Transfer Switch.Realize not power down switching.The moving contact C of this diverter switch when vertical with the contact A connection; Moving contact when level and contact B connect; At the transition state moving contact that switches simultaneously on-state of of short duration A, a B is arranged.
The beneficial effects of the utility model are: in the maintenance of direct current cabinet, replace power supply and are absolutely necessary,
1, direct current cabinet dedicated removable maintenance power-supply system, conveniently moving, the misoperation of avoiding wiring to produce.
2, can under powering-off state not, realize retracting the road investigation.Can help maintainer's trouble shoot.
3, mode of operation safe, simple and direct, improve overhaul efficiency.
Description of drawings
Fig. 1 direct current cabinet dedicated removable maintenance of the present utility model power system structure figure;
The uninterrupted diverter switch figure of Fig. 2 multichannel.
Embodiment
As shown in Figure 1.Direct current cabinet dedicated removable maintenance power-supply system of the present utility model is comprised of 4 modules: rectification module, feed line module, detection module, the uninterrupted diverter switch module of multichannel;
The input of rectification module connects the three-phase alternating current civil power, produces the control mother, closes female two-way DC power supply;
Feed line module has three groups of incoming ends: the control that 1 rectification module produces is female, close female two-way DC power supply incoming end; 2 female by the control of maintenance direct current cabinets, close female two-way DC power supply incoming end; 3 multichannel feeder line connectivity ports;
Detection module: 1 detects input, the output of rectification module; 2 detect the voltage/current of each feeder assembly;
The uninterrupted diverter switch of multichannel (transition diverter switch), the width of its moving contact is greater than the interval between the two-way fixed contact.Can realize uninterruptible power back (Fig. 2).
Direct current cabinet dedicated removable maintenance power-supply system is installed in two special electric cabinets of making, and electric cabinet bottom is with roller, and is mobile very convenient.Connect with aviation plug between the electricity cabinet.
Claims (1)
1. direct current cabinet dedicated removable maintenance power-supply system is comprised of 4 modules: rectification module, feed line module, detection module, the uninterrupted diverter switch module of multichannel;
The input of rectification module connects the three-phase alternating current civil power, produces the control mother, closes female two-way DC power supply;
Feed line module has three groups of incoming ends: 1. the control that produces of rectification module female, close female two-way DC power supply incoming end; 2. female by the control of maintenance direct current cabinet, close female two-way DC power supply incoming end; 3. multichannel feeder line connectivity port;
Detection module: (1) detects input, the output of rectification module; (2) detect the voltage/current of each feeder assembly;
The uninterrupted diverter switch of multichannel, the width of its moving contact is greater than the interval between the two-way fixed contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120480649 CN202721367U (en) | 2011-11-28 | 2011-11-28 | Movable overhauling power supply system special for direct-current screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120480649 CN202721367U (en) | 2011-11-28 | 2011-11-28 | Movable overhauling power supply system special for direct-current screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202721367U true CN202721367U (en) | 2013-02-06 |
Family
ID=47623171
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120480649 Expired - Lifetime CN202721367U (en) | 2011-11-28 | 2011-11-28 | Movable overhauling power supply system special for direct-current screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202721367U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437640A (en) * | 2011-11-28 | 2012-05-02 | 武汉供电公司变电检修中心 | Movable overhauling power supply system special for direct-current screen |
-
2011
- 2011-11-28 CN CN 201120480649 patent/CN202721367U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102437640A (en) * | 2011-11-28 | 2012-05-02 | 武汉供电公司变电检修中心 | Movable overhauling power supply system special for direct-current screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130206 |
|
| CX01 | Expiry of patent term |