CN212486382U - Portable relay protection test power supply - Google Patents
Portable relay protection test power supply Download PDFInfo
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- CN212486382U CN212486382U CN202021540274.7U CN202021540274U CN212486382U CN 212486382 U CN212486382 U CN 212486382U CN 202021540274 U CN202021540274 U CN 202021540274U CN 212486382 U CN212486382 U CN 212486382U
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- output interface
- power supply
- current output
- protection
- direct current
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Abstract
The utility model discloses a portable relay protection test power supply, which comprises a power supply shell, wherein the outer side surface of the power supply shell is provided with a 220V direct current output interface, a 48V direct current output interface, a 12V direct current output interface, an alternating current output interface and a USB output interface; the 220V direct current output interface, the 48V direct current output interface, the 12V direct current output interface, the alternating current output interface and the USB output interface are all connected with a power circuit line in the power supply shell; the utility model can provide a reliable, stable and convenient AC/DC test power supply for the detection test instrument, and avoid the situation that an additional wire is required to be drawn; it can export 220V, 48V, 12V DC power supply and alternating current power supply simultaneously to can adapt to different test project's needs, improve the utility model discloses a use universality.
Description
Technical Field
The utility model relates to a portable power source field especially relates to a portable relay protection test power.
Background
Power distribution (powerdistribution) is a link in an electric power system that directly connects with and distributes electric energy to users. The power distribution system consists of a power distribution substation, a high-voltage distribution line, a power distribution transformer, a low-voltage distribution line and corresponding control protection equipment. At present, the reliability of a power distribution system on a user side is one of important indexes for power supply enterprise assessment, and simultaneously, the reliability of the power distribution system on the user side also reflects the operation condition and the technical management level of a power supply network, is a key reference index for power grid construction and transformation, and is also an important mark for measuring the developed degree of national power. Along with the development of the times, users are required to have higher reliability, more flexibility and intelligence, more convenience in operation, more energy conservation in operation, simpler maintenance and higher safety performance by a power distribution system.
The safety and reliability work of power distribution is required to be realized, power distribution management personnel are required to frequently detect and overhaul, alternating current sampling and protection checking work of tens of continuous interval protection devices is often required to be carried out in the detection and overhaul work of a power distribution system, therefore, detection and test instruments are required to be continuously moved and detected, and when the detection and test instruments move, traction power lines are required to be additionally connected according to moving positions, the operation steps are complex, and the use is very inconvenient.
Disclosure of Invention
The utility model aims at the above-mentioned problem, provide a simple structure, convenient to use's portable relay protection test power.
In order to realize the purpose, the technical scheme of the utility model is that:
a portable relay protection test power supply comprises a power supply shell, wherein a 220V direct current output interface, a 48V direct current output interface, a 12V direct current output interface, an alternating current output interface and a USB output interface are arranged on the outer side surface of the power supply shell; the 220V direct current output interface, the 48V direct current output interface, the 12V direct current output interface, the alternating current output interface and the USB output interface are all connected with a power circuit line in the power supply shell; the power supply circuit comprises a battery pack, a charging assembly, a connecting bus, a first protection assembly, a second protection assembly, a third protection assembly, a fourth protection assembly and a fifth protection assembly, wherein the battery pack and the charging assembly are connected with the connecting bus, the connecting bus is connected with one end of the first protection assembly through a line, and the other end of the first protection assembly is connected with a 220V direct current output interface line; the connecting bus is connected with one end of the second protection component through a first inverter, and the other end of the second protection component is connected with the alternating current output interface circuit; the connection bus is connected with one end of the third protection component through a first voltage reducer in a line mode, and the other end of the third protection component is connected with the 48V direct current output interface in a line mode; the connection bus is connected with one end of the fourth protection component through a second voltage reducer in a line mode, and the other end of the fourth protection component is connected with the 12V direct current output interface in a line mode; the connection bus is connected with one end of the fifth protection component through a third voltage reducer in a line mode, and the other end of the fifth protection component is connected with the USB output interface in a line mode; the first protection assembly, the second protection assembly, the third protection assembly, the fourth protection assembly and the fifth protection assembly respectively comprise an overload protector and a leakage protector, and the overload protector is connected with the leakage protector in series.
Further, the charging assembly comprises a mains supply charging interface and a vehicle charging 12V interface, the vehicle charging 12V interface is connected with one end of the second inverter through a line, the other end of the first inverter and the mains supply charging interface are connected with one end of the second inverter through a line, and the other end of the second inverter is connected with the connecting bus.
Furthermore, the outer side surface of the power supply shell is also provided with a battery power display lamp, and the battery power display lamp is connected with the battery pack through a circuit.
Furthermore, a battery power-off switch for controlling the connection state of the battery pack is arranged on a line between the battery pack and the connection bus.
Furthermore, a voltmeter is connected in parallel on a line between the battery pack and the connecting bus, a line between the charging assembly and the connecting bus; and the lines between the battery pack and the connecting bus and between the charging assembly and the connecting bus are all provided with an ammeter in series.
Furthermore, the top end of the power supply shell is connected with a handle which is convenient for lifting and taking operation.
Furthermore, a plurality of radiating holes for radiating heat are formed in the side face of the power supply shell.
Compared with the prior art, the utility model has the advantages and positive effect be:
the utility model discloses a set up 220V direct current output interface, 48V direct current output interface, 12V direct current output interface, exchange output interface, USB output interface and all are connected with power supply circuit's design in the side of the power casing, make it can provide reliable, stable, convenient alternating current-direct current test power supply for detecting test instrument, avoided the situation emergence that needs the additional traction electric wire; meanwhile, the output of the power supply can provide 220V, 48V and 12V direct current power supplies and alternating current power supplies, so that the requirements of different test projects can be met, and the application universality of the utility model is improved; on the other hand, the utility model discloses have functions such as short circuit, overload automatic tripping to have the electric quantity demonstration, can guarantee going on reliably smoothly of test work, brought the facility for the operation of testing instrument.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
FIG. 1 is a front view structural diagram of the present invention;
FIG. 2 is a left side view of the structure of the present invention;
fig. 3 is a circuit structure diagram of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, any modifications, equivalent replacements, improvements, etc. made by other embodiments obtained by a person of ordinary skill in the art without creative efforts shall be included in the protection scope of the present invention.
As shown in fig. 1, fig. 2, and fig. 3, the portable relay protection test power supply in this embodiment includes a power supply housing 1, and a 220V dc output interface, a 48V dc output interface, a 12V dc output interface, an ac output interface, and a USB output interface are disposed on an outer side surface of the power supply housing 1; the 220V direct current output interface, the 48V direct current output interface, the 12V direct current output interface, the alternating current output interface and the USB output interface are all connected with a power circuit line in the power supply shell 1;
the power supply circuit comprises a battery pack, a charging assembly, a connecting bus, a first protection assembly, a second protection assembly, a third protection assembly, a fourth protection assembly and a fifth protection assembly, wherein the battery pack and the charging assembly are connected with the connecting bus, the connecting bus is connected with one end of the first protection assembly through a line, and the other end of the first protection assembly is connected with a 220V direct current output interface line; the connecting bus is connected with one end of the second protection component through a first inverter, and the other end of the second protection component is connected with the alternating current output interface circuit; the connection bus is connected with one end of the third protection component through a first voltage reducer in a line mode, and the other end of the third protection component is connected with the 48V direct current output interface in a line mode; the connection bus is connected with one end of the fourth protection component through a second voltage reducer in a line mode, and the other end of the fourth protection component is connected with the 12V direct current output interface in a line mode; the connection bus is connected with one end of the fifth protection component through a third voltage reducer in a line mode, and the other end of the fifth protection component is connected with the USB output interface in a line mode;
the first protection assembly, the second protection assembly, the third protection assembly, the fourth protection assembly and the fifth protection assembly respectively comprise an overload protector and a leakage protector, and the overload protector is connected with the leakage protector in series.
The charging assembly comprises a mains supply charging interface and a vehicle charging 12V interface, the vehicle charging 12V interface is connected with one end of the second inverter through a line, the other end of the first inverter and the mains supply charging interface are connected with one end of the second inverter through a line, and the other end of the second inverter is connected with the connecting bus.
The design of the charging assembly can charge the battery pack through the connecting bus, and can also directly supply power to each output interface through the connecting bus.
The lateral surface of the power supply shell 1 is also provided with a battery electric quantity display lamp 3, and the battery electric quantity display lamp 3 is connected with a battery pack circuit. The electric quantity display lamp can directly show the residual capacity information of group battery, makes things convenient for people in time to charge for the group battery, has further improved the utility model discloses an excellent in use effect.
And a battery power-off switch for controlling the connection state of the battery pack is arranged on a line between the battery pack and the connection bus. When the battery pack supplies power when the battery pack is not used, the battery power-off switch can be disconnected, so that the current provided by the charging assembly is directly used for each output interface.
The lines between the battery pack and the connecting bus, the lines between the charging assembly and the connecting bus are all provided with a voltmeter in parallel; and the lines between the battery pack and the connecting bus and between the charging assembly and the connecting bus are all provided with an ammeter in series. People can observe electric current, voltage situation on each circuit through ampere meter, voltmeter, have improved the utility model discloses an excellent in use.
The top end of the power supply shell 1 is connected with a handle 2 which is convenient for lifting and taking operation. The design of handle has made things convenient for holding of experimental power and has held the work, has brought the facility for people's the operation of carrying.
The side surface of the power supply shell 1 is provided with a plurality of radiating holes 4 for radiating. Each output interface sets up terminal surface before power supply housing, and the louvre setting is at power supply housing's left and right side and rear end face, and it can improve power supply circuit's radiating effect, thereby improves the utility model discloses an effect of use.
The utility model discloses a set up 220V direct current output interface, 48V direct current output interface, 12V direct current output interface, exchange output interface, USB output interface and all are connected with power supply circuit's design in the side of the power casing, make it can provide reliable, stable, convenient alternating current-direct current test power supply for detecting test instrument, avoided the situation emergence that needs the additional traction electric wire; meanwhile, the output of the power supply can provide 220V, 48V and 12V direct current power supplies and alternating current power supplies, so that the requirements of different test projects can be met, and the application universality of the utility model is improved; on the other hand, the utility model discloses have functions such as short circuit, overload automatic tripping to have the electric quantity demonstration, can guarantee going on reliably smoothly of test work, brought the facility for the operation of testing instrument.
Claims (7)
1. The utility model provides a portable relay protection test power, includes power supply housing, its characterized in that: a 220V direct current output interface, a 48V direct current output interface, a 12V direct current output interface, an alternating current output interface and a USB output interface are arranged on the outer side face of the power supply shell; the 220V direct current output interface, the 48V direct current output interface, the 12V direct current output interface, the alternating current output interface and the USB output interface are all connected with a power circuit line in the power supply shell; the power supply circuit comprises a battery pack, a charging assembly, a connecting bus, a first protection assembly, a second protection assembly, a third protection assembly, a fourth protection assembly and a fifth protection assembly, wherein the battery pack and the charging assembly are connected with the connecting bus, the connecting bus is connected with one end of the first protection assembly through a line, and the other end of the first protection assembly is connected with a 220V direct current output interface line; the connecting bus is connected with one end of the second protection component through a first inverter, and the other end of the second protection component is connected with the alternating current output interface circuit; the connection bus is connected with one end of the third protection component through a first voltage reducer in a line mode, and the other end of the third protection component is connected with the 48V direct current output interface in a line mode; the connection bus is connected with one end of the fourth protection component through a second voltage reducer in a line mode, and the other end of the fourth protection component is connected with the 12V direct current output interface in a line mode; the connection bus is connected with one end of the fifth protection component through a third voltage reducer in a line mode, and the other end of the fifth protection component is connected with the USB output interface in a line mode; the first protection assembly, the second protection assembly, the third protection assembly, the fourth protection assembly and the fifth protection assembly respectively comprise an overload protector and a leakage protector, and the overload protector is connected with the leakage protector in series.
2. The portable relay protection test power supply of claim 1, wherein: the charging assembly comprises a mains supply charging interface and a vehicle charging 12V interface, the vehicle charging 12V interface is connected with one end of the second inverter through a line, the other end of the first inverter and the mains supply charging interface are connected with one end of the second inverter through a line, and the other end of the second inverter is connected with the connecting bus.
3. The portable relay protection test power supply of claim 2, wherein: the power supply shell lateral surface still is provided with battery power display lamp, battery power display lamp and group battery line connection.
4. The portable relay protection test power supply of claim 3, wherein: and a battery power-off switch for controlling the connection state of the battery pack is arranged on a line between the battery pack and the connection bus.
5. The portable relay protection test power supply of claim 4, wherein: the lines between the battery pack and the connecting bus, the lines between the charging assembly and the connecting bus are all provided with a voltmeter in parallel; and the lines between the battery pack and the connecting bus and between the charging assembly and the connecting bus are all provided with an ammeter in series.
6. The portable relay protection test power supply of claim 5, wherein: the top end of the power supply shell is connected with a handle which is convenient to carry and operate.
7. The portable relay protection test power supply of claim 6, wherein: the side surface of the power supply shell is provided with a plurality of radiating holes for radiating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021540274.7U CN212486382U (en) | 2020-07-30 | 2020-07-30 | Portable relay protection test power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021540274.7U CN212486382U (en) | 2020-07-30 | 2020-07-30 | Portable relay protection test power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212486382U true CN212486382U (en) | 2021-02-05 |
Family
ID=74453003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021540274.7U Expired - Fee Related CN212486382U (en) | 2020-07-30 | 2020-07-30 | Portable relay protection test power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212486382U (en) |
-
2020
- 2020-07-30 CN CN202021540274.7U patent/CN212486382U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210205 Termination date: 20210730 |
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| CF01 | Termination of patent right due to non-payment of annual fee |