CN214750743U - Multi-model high-frequency switch power supply module testing device - Google Patents
Multi-model high-frequency switch power supply module testing device Download PDFInfo
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- CN214750743U CN214750743U CN202120889945.9U CN202120889945U CN214750743U CN 214750743 U CN214750743 U CN 214750743U CN 202120889945 U CN202120889945 U CN 202120889945U CN 214750743 U CN214750743 U CN 214750743U
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Abstract
The application provides a polytypic high frequency switching power supply module testing arrangement, includes: the device comprises an alternating current input unit for simultaneously providing 380V and 220V alternating current power supplies, an access unit for accessing to-be-detected modules of more than or equal to 1 type in a plugging mode, a 220V and 48V direct current output unit for outputting the output of the to-be-detected modules, a stable operation load simulation unit for supporting a testing device, a display unit and a protection unit. The utility model provides a many models high frequency switch power supply module testing arrangement can discover trouble module in advance, ensures the module homoenergetic normal operating that is used for the field usage, confirms promptly that the module can normal operating after the reuse disappear scarcely for the transformer substation, avoids the time cost of making a round trip to change, simultaneously, reduces our processing module trouble failure's number of times.
Description
Technical Field
The application relates to the technical field of electric power testing, in particular to a testing device for a multi-model high-frequency switching power supply module.
Background
In a direct-current power supply system of a transformer substation, a high-frequency switch power supply module converts alternating current for the substation into a direct-current power supply to supply power to the direct-current system, provides a reliable power supply for a protection device, an automation device, a mechanism box, communication equipment and the like, simultaneously charges a storage battery, and plays a vital role in the direct-current power supply system. The burning or the failure of the high-frequency switching power supply module is a common phenomenon in the operation and the inspection at the present stage, and the high-frequency switching power supply module is treated by adopting a direct replacement mode. The existing high-frequency switching power supply module is a plug-in module, and only a fault needs to be taken out during replacement, and a new module of the same kind is inserted, but because of the reasons of product quality, transportation and storage conditions and the like, the new module often has a fault, and the new module can be replaced next time after being replaced by a transformer substation. Sometimes, the road is far away, and the back and forth exchange causes great waste of manpower and material resources, prolongs the equipment fault duration and increases the safety risk of the transformer substation.
Therefore, a test apparatus capable of testing an operation state for a new module is required.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a polytypic high frequency switching power supply module testing arrangement, its characterized in that: the method comprises the following steps: the device comprises an alternating current input unit, a module to be detected access unit, a direct current output unit, a load simulation unit, a display unit and a protection unit;
the alternating current input unit is used for simultaneously providing 380V and 220V alternating current power supplies, and the output end of the alternating current input unit is electrically connected with the input end of the module to be detected;
the module access unit to be detected is used for accessing to-be-detected high-frequency switching power supply modules with types more than or equal to 1 in a plugging mode;
the direct current output unit is used for outputting 220V and 48V direct currents output by the module to be detected;
the load simulation unit is used for supporting the stable operation of the testing device and is electrically connected with the direct current output unit;
the display unit is used for displaying the voltage and the current of the output direct current;
the protection unit is used for removing short-circuit faults within preset time, the protection unit comprises a protection unit 1 arranged on the alternating current input unit and a protection unit 2 arranged on the direct current output unit, the protection unit 1 is arranged at the input end of the alternating current unit, and the protection unit 2 is arranged between the direct current output unit and the load simulation unit.
Further, the alternating current input unit adopts a three-phase four-wire system, and the alternating current input unit comprises a 380V alternating current input of three-phase alternating current and an alternating current input of 220V, wherein one phase is led out from the three-phase alternating current.
Further, the module access unit to be detected comprises more than or equal to 1 socket and an access loop corresponding to the socket, and the access loop is used for electrically connecting the alternating current input unit and the direct current output unit.
Further, the direct current output units 220V and 48V share a loop, and a diode is used for isolating two voltages.
Further, the anode of the diode is connected with the anode output end of the direct current output, and the cathode of the diode is the anode output of the direct current output.
Further, the load simulation unit adopts a resistor disc.
Further, the protection unit 1 and the protection unit 2 are both circuit breakers.
Furthermore, the testing device also comprises a supporting bracket for supporting the alternating current input unit, the module to be detected access unit, the direct current output unit, the load simulation unit, the display unit and the protection unit.
The utility model has the advantages of: the utility model provides a polytypic high frequency switching power supply module testing arrangement can discover high frequency switching power supply trouble module in advance, ensures the module homoenergetic normal operating that is used for the field usage, confirms promptly that the module can normal operating after the reuse be used for the transformer substation to disappear and lack, avoids making a round trip the time cost of changing, simultaneously, reduces our processing module trouble failure's number of times.
Drawings
The invention will be further described with reference to the following figures and examples:
fig. 1 is a circuit schematic diagram of an embodiment of the present application.
Detailed Description
The invention is further explained by the following combined with the attached drawings of the specification:
the utility model provides a polytypic high frequency switching power supply module testing arrangement, its characterized in that: the method comprises the following steps: the device comprises an alternating current input unit, a module to be detected access unit, a direct current output unit, a load simulation unit, a display unit and a protection unit; the alternating current input unit is used for simultaneously providing 380V and 220V alternating current power supplies, and the output end of the alternating current input unit is electrically connected with the input end of the module to be detected; the module access unit to be detected is used for accessing to-be-detected high-frequency switching power supply modules with types more than or equal to 1 in a plugging mode; the direct current output unit is used for outputting 220V and 48V direct currents output by the module to be detected; the load simulation unit is used for supporting the stable operation of the testing device and is electrically connected with the direct current output unit; the display unit is used for displaying the voltage and the current of the output direct current; the protection unit is used for removing short-circuit faults within preset time, the protection unit comprises a protection unit 1 arranged on the alternating current input unit and a protection unit 2 arranged on the direct current output unit, the protection unit 1 is arranged at the input end of the alternating current unit, and the protection unit 2 is arranged between the direct current output unit and the load simulation unit. According to the technical scheme, the high-frequency switching power supply fault module can be found in advance, the modules used for field use can normally run, the time cost of back-and-forth exchange is avoided, and meanwhile, the frequency of failure of processing the module is reduced.
In the present embodiment, as shown in fig. 1, the ac input unit adopts a three-phase four-wire system, and includes a 380V ac input of three-phase ac power and a 220V ac input of one phase drawn from the three-phase ac power. 380V three-phase alternating current input is adopted as a power supply in an alternating current part, and one phase 220V is led out to be used as a power supply of a No. 3 socket.
In this embodiment, as shown in fig. 1, the module access unit to be detected includes sockets of 1 kind or more and access loops corresponding to the sockets, and the access loops are used for electrically connecting the ac input unit and the dc output unit. The testing device needs to test modules with different voltage grades and different models, and the existing socket interfaces are counted because the testing device needs to comprise socket interface modes of modules with different models of the high-frequency switching power supply module. By observing and statistically analyzing all models of modular jacks, four main types of modular jacks are summarized, wherein the four types can cover more than 80% of the number of modules currently in operation, as shown in table 1. Therefore, in this embodiment, 4 types of sockets are used to access the circuit, and the direct current can be output after being rectified by the high-frequency switching power supply module.
TABLE 1 Modular jack type statistics
In the present embodiment, as shown in fig. 1, the dc output units 220V and 48V share a loop for dc power, and a diode is used to isolate the two voltages. The anode of the diode is connected with the anode output end of the direct current output, and the cathode of the diode is the anode output of the direct current output.
In this embodiment, the load simulation unit employs a resistor sheet. The test module can stably output current by using the analog load, the current stabilization time is more than 17S, namely the current fluctuation in 17S is not more than 1%. Because the resistance card adopts the heat dissipation design, the resistance can be kept relatively stable, the current stabilization precision is better, and the load simulation unit does not adopt the resistance card in the application.
In this embodiment, the protection unit 1 and the protection unit 2 are both circuit breakers. The protection unit can protect the testing device under the condition that the testing platform is in short circuit, so that the device is prevented from being burnt or the testing module is prevented from being damaged, and a protection electric appliance is adopted in a loop to protect the testing device and the high-frequency switching power supply module to be detected. Because of the circuit breaker is better in fuse sensitivity, can use repeatedly, operates more conveniently, so protection unit in this embodiment adopts the circuit breaker.
In this embodiment, the testing apparatus further includes a supporting bracket for supporting the ac input unit, the module to be tested access unit, the dc output unit, the load simulation unit, the display unit, and the protection unit.
Finally, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the present invention can be modified or replaced by other means without departing from the spirit and scope of the present invention, which should be construed as limited only by the appended claims.
Claims (8)
1. The utility model provides a polytypic high frequency switching power supply module testing arrangement which characterized in that: the method comprises the following steps: the device comprises an alternating current input unit, a module to be detected access unit, a direct current output unit, a load simulation unit, a display unit and a protection unit;
the alternating current input unit is used for simultaneously providing 380V and 220V alternating current power supplies, and the output end of the alternating current input unit is electrically connected with the input end of the module to be detected;
the module access unit to be detected is used for accessing to-be-detected high-frequency switching power supply modules with types more than or equal to 1 in a plugging mode;
the direct current output unit is used for outputting 220V and 48V direct currents output by the module to be detected;
the load simulation unit is used for supporting the stable operation of the testing device and is electrically connected with the direct current output unit;
the display unit is used for displaying the voltage and the current of the output direct current;
the protection unit is used for removing short-circuit faults within preset time, the protection unit comprises a protection unit 1 arranged on the alternating current input unit and a protection unit 2 arranged on the direct current output unit, the protection unit 1 is arranged at the input end of the alternating current unit, and the protection unit 2 is arranged between the direct current output unit and the load simulation unit.
2. The testing device for the multi-model high-frequency switching power supply module according to claim 1, characterized in that: the alternating current input unit adopts a three-phase four-wire system, and comprises a 380V alternating current input of three-phase alternating current and an alternating current input which is used as 220V and is led out one phase from the three-phase alternating current.
3. The testing device for the multi-model high-frequency switching power supply module according to claim 2, characterized in that: the module access unit to be detected comprises more than or equal to 1 socket and an access loop corresponding to the socket, and the access loop is used for electrically connecting the alternating current input unit and the direct current output unit.
4. The testing device for the multi-model high-frequency switching power supply module according to claim 3, characterized in that: the direct current output unit shares a loop with 220V direct current and 48V direct current, and a diode is used for isolating the two voltages.
5. The testing device for the multi-model high-frequency switching power supply module according to claim 4, wherein: the anode of the diode is connected with the anode output end of the direct current output, and the cathode of the diode is the anode output of the direct current output.
6. The testing device for the multi-model high-frequency switching power supply module according to claim 1, characterized in that: the load simulation unit adopts a resistor disc.
7. The testing device for the multi-model high-frequency switching power supply module according to claim 1, characterized in that: the protection unit 1 and the protection unit 2 are both circuit breakers.
8. The testing device for the multi-model high-frequency switching power supply module according to claim 1, characterized in that: the testing device also comprises a supporting bracket for supporting the alternating current input unit, the module to be tested access unit, the direct current output unit, the load simulation unit, the display unit and the protection unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120889945.9U CN214750743U (en) | 2021-04-28 | 2021-04-28 | Multi-model high-frequency switch power supply module testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120889945.9U CN214750743U (en) | 2021-04-28 | 2021-04-28 | Multi-model high-frequency switch power supply module testing device |
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| Publication Number | Publication Date |
|---|---|
| CN214750743U true CN214750743U (en) | 2021-11-16 |
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|---|---|---|---|
| CN202120889945.9U Active CN214750743U (en) | 2021-04-28 | 2021-04-28 | Multi-model high-frequency switch power supply module testing device |
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| Country | Link |
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| CN (1) | CN214750743U (en) |
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2021
- 2021-04-28 CN CN202120889945.9U patent/CN214750743U/en active Active
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