CN207426991U - Portable metering special power box - Google Patents
Portable metering special power box Download PDFInfo
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- CN207426991U CN207426991U CN201721338570.7U CN201721338570U CN207426991U CN 207426991 U CN207426991 U CN 207426991U CN 201721338570 U CN201721338570 U CN 201721338570U CN 207426991 U CN207426991 U CN 207426991U
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- transformer
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Abstract
The utility model discloses a kind of Portable metering special power box, and including babinet, babinet is equipped with exchange 100V output terminals, alternating current 220V output terminal, alternating voltage output display screen, contravariant transformer switch, Vehicular direct-current power input terminal etc.；Contravariant transformer, fuse, transformer are provided in babinet；Contravariant transformer one end is connected to Vehicular direct-current power input terminal and alternating current 220V input terminal, and the other end is connected with fuse, alternating current 220V output terminal；Transformer one end connection exchange 100V output terminals, the other end are connected respectively with alternating current 220V output terminal, alternating voltage output dip switch.The utility model compact structure is flexible, easy to carry and access, and power input, output disclosure satisfy that different occasions use；It is exported for providing convenient, stable, qualified power supply to the high experimental rig in the low school of mutual inductor, and takes into account power consumer load control terminal, concentrator and collector debugging, the efficiency checked and accepted is measured so as to improve new clothes user.
Description
Technical field：
The utility model belongs to electrical equipment technical field, more particularly to a kind of Portable metering special power box.
Background technology：
When new clothes power consumer situ metrology transformer error is examined and determine, often caused because experiment power supply when picking up difficulty
Experiment can not carry out or test efficiency is low.With the strengthened research of power information acquisition system, the acquisition of new clothes power consumer
Reach the standard grade to the acquisition terminal influence of rate of terminal and concentrator, the field adjustable of collector can not be ignored.It is gathered with power information
The strengthened research of system, how electric energy metering device install wiring after debug acquisition terminal in time, can be used family power transmission after eventually
End gathers electric energy meter information data and is sent to acquisition system main website at once, avoids that testing staff, dress table is examined to meet electric personnel, adopt
Collection operation maintenance personnel repeats to run away, and improves the examination efficiency of electric energy metering device, more than site problems are required for being resolved as early as possible.
For this purpose, there is an urgent need for providing convenient, stable, qualified power supply output for the debugging of special transformer terminals, concentrator and collector, one is developed
Kind Portable metering special power box.
The content of the invention：
Existing in the prior art in order to overcome the problems, such as, the utility model provides a kind of Portable metering special power box, can
Convenient, stable, qualified power supply is provided to the high experimental rig in the low school of mutual inductor to export, and takes into account power consumer spatial load forecasting end
End, concentrator and collector debugging.
In order to solve the above technical problems, the utility model takes following technical scheme：
A kind of Portable metering special power box, including babinet, the babinet is equipped with exchange 100V output terminals, exchange
220V output terminals, alternating voltage output display screen, contravariant transformer switch, Vehicular direct-current power input terminal, alternating voltage are defeated
Go out switching switch and alternating current 220V input terminal；It is provided with contravariant transformer in the babinet, fuse, transformer, outside babinet
It is equipped with alternating current 220V experiment power supply and exchanges 100V experiment power supplies；Wherein, described contravariant transformer one end is connected on babinet
Vehicular direct-current power input terminal and alternating current 220V input terminal, the other end and the alternating current 220V output terminal on fuse, babinet
It is connected；Exchange 100V output terminals on described transformer one end connection babinet, the other end respectively with alternating current 220V output terminal, inverse
Become transformer switch, alternating voltage output dip switch is connected.
Above-mentioned contravariant transformer is connected with inverter, and the inverter uses vehicle power supply 12V, inversion transformation
The main function of device is to convert vehicle power supply 12V to alternating current 220V.
Further, above-mentioned fuse uses fuse tube of the blowout current for 2A, and major function is big for limitation loop current
It is small, it prevents vehicle-mounted contravariant transformer or burns automobile interior power fuse, winding displacement, play the role of circuit protection, premise exists
In the power of selected contravariant transformer be about 300W.
Further, above-mentioned transformer is connected in parallel with alternating current 220V output terminal, alternating voltage output dip switch, master
It is that the 220V after vehicle-mounted inversion can be changed to 100V power supplys to want function, for being used when field electric energy table, acquisition terminal debugging.
The operation principle of the utility model Portable metering special power box：By being connected with the storage battery on automobile, make vapour
Direct current (12V) on automobile battery is converted to alternating current 220V or 100V, then at the scene there are 220V power supplys, without vehicle-mounted inversion
In the case of, can free switching, directly provide 100V AC powers for acquisition terminal debugging use.
The beneficial effects of the utility model are：
1) the Portable metering special power box power supply architecture is compact and flexible, easy to carry；Stable friendship can be provided simultaneously
Flow 220V and 100V outputs；Power input, output disclosure satisfy that no temporary source, temporary source be not easy to pick up, temporary source not
The different occasions such as stable use, and conveniently accessible；Power supply is in use without security risk.
2) non-transformer when the Portable metering special power box is mainly used in new clothes custom power mutual inductor field detecting
In the case of, it provides convenient, stable, qualified 220V AC powers using vehicular power-bottle and exports, simultaneously, it is possible to provide 100V alternating currents
Source improves new clothes user and measures examination efficiency for the debugging of new clothes customer charge control terminal and electric energy meter.
3) low manufacture cost of the Portable metering special power box is, it can be achieved that disposable metering is checked and accepted, therefore, greatly
Artificial, transport, safety cost are saved, there is certain application value.
Description of the drawings：
Fig. 1 is the utility model Portable metering special power box external structure schematic diagram；
Fig. 2 is the utility model Portable metering special power box internal circuit connection figure；
In figure：1- exchanges 100V output terminals, 2- alternating current 220V output terminals, 3- alternating voltage output display screens, 4- inversions change
Depressor switchs, 5- Vehicular direct-current power input terminals, 6- alternating voltage output dip switch, 7- alternating current 220V input terminals, 8-
Contravariant transformer, 9- fuses, 10- transformers.
Specific embodiment：
The technical solution of the utility model is described in detail below in conjunction with the accompanying drawings.
As shown in Figure 1 and Figure 2, a kind of Portable metering special power box, including babinet, the babinet is equipped with exchange
100V output terminals 1, alternating current 220V output terminal 2, alternating voltage output display screen 3, contravariant transformer switch 4, Vehicular direct-current power supply
Input terminal 5, alternating voltage output dip switch 6 and alternating current 220V input terminal 7；Contravariant transformer is provided in the babinet
8, fuse 9, transformer 10 is equipped with alternating current 220V experiment power supply and exchanges 100V experiment power supplies outside babinet；Wherein, the inversion
8 one end of transformer is connected to Vehicular direct-current power input terminal 5 and alternating current 220V input terminal 7 on babinet, and the other end is with melting
Alternating current 220V output terminal 2 on disconnected device 9, babinet is connected；Exchange 100V outputs on 10 one end of transformer connection babinet
End 1, the other end are connected respectively with alternating current 220V output terminal 2, contravariant transformer switch 4, alternating voltage output dip switch 6；
The contravariant transformer 8 is connected with the vehicle power supply 220V of inverter.
When being used for the debugging of special transformer terminals, concentrator and collector using the Portable metering special power box, specific work
It is as follows to make principle：
1) scene, using vehicular power-bottle (12V, DC) as input 1, passes through contravariant transformer 8 without under any power conditions
Afterwards, effectively 1 (220V, AC) of output is can obtain, the low high mutual-inductor tester in school can be directly driven and carry out electric power mutual-inductor error examination
It tests；Meanwhile can obtain effectively exporting 2 (100V, AC) by transformer 10, it is debugged for the communication of acquisition terminal and electric energy meter；
2) there are 220V AC-testing supplies at scene, but the debugging of acquisition terminal uses exchange 100V experiment power supplies, can
Input 2 is used as by live 220V, directly obtains effectively exporting 2 (100V, AC) by transformer 10.
Points for attention：The power supply box makes contravariant transformer 8 export exchange when working by voltage output switching switch 6
The working condition of 100V will not occur simultaneously with being directly depressured by alternating current 220V for the operating mode of 100V, and straight by alternating current 220V
It connects under operating mode when decompression is 100V, the output terminal of protection contravariant transformer 8 is isolated with the reliable of 220V power supplys.
In actual use, the operating method of the Portable metering special power box is：
1) interior cigar lighter socket power supply or automobile storage battery power supply are passed through into the Vehicular direct-current electricity below the special power box
Input terminal 5 rotary joint in source accesses power supply box；
2) contravariant transformer switch 4 is opened, adjusts alternating voltage output dip switch 6, at this point, alternating voltage output display
The voltage value of 3 display corresponding power socket of screen.
The power of the Portable metering special power box<300W, is internally provided with the 2A fuse tubes of protection, during access bearers
It needs to select in strict accordance with power match, in order to avoid burn vehicle power supply case.Secondly, it is additionally provided with ground connection on the power box body shell
Terminal, when use, answer reliable ground, prevent the person or equipment harm.
Claims (6)
1. a kind of Portable metering special power box, including babinet, it is characterised in that：The babinet is equipped with exchange 100V outputs
It holds (1), alternating current 220V output terminal (2), alternating voltage output display screen (3), contravariant transformer switch (4), Vehicular direct-current power supply
Input terminal (5), alternating voltage output dip switch (6) and alternating current 220V input terminal (7)；Inversion is provided in the babinet
Transformer (8), fuse (9), transformer (10), babinet are equipped with alternating current 220V experiment power supply and exchange 100V experiment power supplies outside；
Wherein, described contravariant transformer (8) one end is connected to the Vehicular direct-current power input terminal (5) on babinet and alternating current 220V input
Terminal (7), the other end are connected with the alternating current 220V output terminal (2) on fuse (9), babinet；Described transformer (10) one end
The exchange 100V output terminals (1) on babinet are connected, the other end switchs respectively with alternating current 220V output terminal (2), contravariant transformer
(4), alternating voltage output dip switch (6) is connected.
2. Portable metering special power box according to claim 1, it is characterised in that：The transformer (10) is with exchanging
220V output terminals (2), alternating voltage output dip switch (6) are connected in parallel.
3. Portable metering special power box according to claim 1, it is characterised in that：The contravariant transformer (8) with
Inverter is connected, and the inverter uses vehicle power supply 12V, and its role is to convert vehicle power supply 12V to exchange
220V。
4. the Portable metering special power box according to claim 1 or 3, it is characterised in that：The contravariant transformer (8)
Power be 300W.
5. Portable metering special power box according to claim 1, it is characterised in that：The fuse (9) is using molten
The fuse tube that power-off stream is 2A.
6. Portable metering special power box according to claim 1, it is characterised in that：The shell of the babinet is equipped with
Ground terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338570.7U CN207426991U (en) | 2017-10-18 | 2017-10-18 | Portable metering special power box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721338570.7U CN207426991U (en) | 2017-10-18 | 2017-10-18 | Portable metering special power box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207426991U true CN207426991U (en) | 2018-05-29 |
Family
ID=62311654
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721338570.7U Active CN207426991U (en) | 2017-10-18 | 2017-10-18 | Portable metering special power box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207426991U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565836A (en) * | 2017-10-18 | 2018-01-09 | 国网宁夏电力公司培训中心 | Portable metering special power box |
-
2017
- 2017-10-18 CN CN201721338570.7U patent/CN207426991U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107565836A (en) * | 2017-10-18 | 2018-01-09 | 国网宁夏电力公司培训中心 | Portable metering special power box |
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