CN218412844U - Energy-saving power load testing device - Google Patents
Energy-saving power load testing device Download PDFInfo
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- CN218412844U CN218412844U CN202222229312.2U CN202222229312U CN218412844U CN 218412844 U CN218412844 U CN 218412844U CN 202222229312 U CN202222229312 U CN 202222229312U CN 218412844 U CN218412844 U CN 218412844U
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Abstract
The utility model discloses an energy-saving power load testing arrangement relates to power load testing technical field, include: the device comprises an alternating current testing part, a direct current testing part, a checking synchronization module and an output part. Loads with different properties correspond to different test lines, the test line corresponding to the direct current power supply comprises an inverter, direct current is converted into alternating current, electricity of the loads or electricity converted by the inverter is detected by a detection synchronization module, when the frequency, voltage and phase of the electricity of the loads or the electricity converted by the inverter are respectively the same as the frequency, voltage and phase of a power grid, the detection synchronization module sends a command to a load switch, and the load switch sends the electricity of the loads or the electricity converted by the inverter to the power grid for grid connection.
Description
Technical Field
The utility model relates to a power load test technical field, more specifically relates to an energy-saving power load testing arrangement.
Background
With the continuous development of electronic and electrical technologies, the applications of emergency power supply equipment and power supply guarantee equipment in multiple fields are more and more extensive, and general power supply products need to be detected after production so as to ensure the quality of products leaving a factory. In order to ensure that the quality of the power supply product reaches the standard, a loading test is indispensable. The types of equipment for high-power loading test generally comprise an emergency generator set, a storage battery pack, UPS equipment and the like, the power of a single power supply product is increased along with the development of power supply technology, and most of the prior art adopts a load resistor to consume energy for testing, so that a large amount of heat is generated to the test environment, great inconvenience is brought to maintenance personnel, and a large amount of energy is wasted.
Therefore, how to overcome the above problems is one of the technical problems to be solved urgently at the present stage.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides an energy-saving power load testing arrangement returns the electric energy that will test load consumption to the utilization on the power local area network again to avoid producing a large amount of heats in the test procedure, bring a great deal of inconvenience for maintainer, and extravagant a large amount of energy problems.
In a first aspect, the present application provides an energy-saving power load testing apparatus, including:
the alternating current testing part comprises a first input wiring terminal, a second input wiring terminal, a first alternating current switch and a second alternating current switch; the first input wiring terminal is electrically connected with the first alternating current switch; the second input wiring terminal is electrically connected with the second alternating current switch;
the direct current testing part comprises a third input wiring terminal, a fourth input wiring terminal, a high-voltage direct current switch, a low-voltage direct current switch, a high-voltage inverter and a low-voltage inverter; the third input wiring terminal is electrically connected with the high-voltage direct current switch, and the input end of the high-voltage inverter is electrically connected with the high-voltage direct current switch; the fourth input wiring terminal is electrically connected with the low-voltage direct-current switch, and the input end of the low-voltage inverter is electrically connected with the low-voltage direct-current switch;
the synchronization detection module comprises an intra-local power grid sensor, a power supply test sensor, a controller, a synchronization detection indicator light, an automatic closing indicator light and a synchronization detection execution device; the input end of the local power grid sensor is electrically connected with a local power grid, and the output end of the local power grid sensor is electrically connected with the controller; the input end of the power supply test sensor is electrically connected with the output end of the alternating current test part or the direct current test part; the controller is electrically connected with the synchronization period indicating lamp; the controller is electrically connected with the automatic closing indicator lamp; the controller is electrically connected with the checking synchronization executing device;
and the output part comprises a load switch and an output wiring bar, the load switch is electrically connected with the controller, and the load switch is electrically connected with the output wiring bar.
Optionally, wherein:
still include double-circuit automatic transfer switch, double-circuit automatic transfer switch with power test sensor electricity is connected, at same moment, based on double-circuit automatic transfer switch's switching action, only exchange test section or one of them switch on of direct current test section.
Optionally, wherein:
the first ac switch and the second ac switch implement a mechanical interlock, and the high voltage dc switch and the low voltage dc switch implement a mechanical interlock.
Optionally, wherein:
the power supply with the four different load properties is connected with the first input wiring terminal, the second input wiring terminal, the third input wiring terminal and the fourth input wiring terminal respectively, and the indicator lamps respectively correspond to the four loads with the different properties.
Compared with the prior art, the utility model provides a pair of energy-saving power load testing arrangement has realized following beneficial effect at least:
the application provides an energy-saving power load testing device, which comprises
The alternating current testing part comprises two input wiring terminals and two alternating current switches; the direct current testing part comprises two input wiring terminals and a corresponding high-voltage direct current switch, a corresponding low-voltage direct current switch, a corresponding high-voltage inverter and a corresponding low-voltage inverter; the synchronization detection module comprises an intra-office power grid sensor, a power supply test sensor, a controller, a synchronization detection indicator lamp, an automatic closing indicator lamp and a synchronization detection execution device; and the output part comprises a load switch and an output wiring bank. Loads with different properties correspond to different test lines, a direct current power supply is converted into alternating current through an inverter, the electricity of the loads or the electricity of the inverter is detected through a detection synchronization module, when the frequency, the voltage and the phase of the electricity of the loads or the electricity converted by the inverter are respectively the same as the frequency, the voltage and the phase of a power grid, the detection synchronization module sends a command to a load switch, and the load switch sends the electricity of the loads to the power grid for grid connection.
Of course, it is not necessary for any product of the present invention to achieve all of the above-described technical effects simultaneously.
Other features of the present invention and advantages thereof will become apparent from the following detailed description of exemplary embodiments of the invention, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a schematic diagram of an energy-saving power load testing apparatus;
fig. 2 is a schematic diagram of a cabinet of the energy-saving power load testing apparatus.
Detailed Description
Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that: unless specifically stated otherwise, the relative arrangement of parts and steps, numerical expressions, and numerical values set forth in these embodiments do not limit the scope of the present invention.
The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any particular value should be construed as exemplary only and not as limiting. Thus, other examples of the exemplary embodiments may have different values.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
With the continuous development of electronic and electrical technologies, emergency power supply equipment and guarantee power supply equipment are applied more and more widely in multiple fields, and general power supply products need to be detected after production so as to ensure the quality of products leaving a factory. In order to ensure that the quality of the power supply product reaches the standard, a loading test is necessary. The types of equipment for high-power loading test generally comprise an emergency generator set, a storage battery pack, UPS equipment and the like, the power of a single power supply product is increased along with the development of power supply technology, and most of the prior art adopts a load resistor to consume energy for testing, so that a large amount of heat is generated to the test environment, great inconvenience is brought to maintenance personnel, and a large amount of energy is wasted. Therefore, how to overcome the above problems is one of the technical problems to be solved urgently at the present stage.
In view of this, the utility model provides an energy-saving power load testing arrangement returns the utilization on the electric power local area network again through the electric energy with test load consumption to avoid producing a large amount of heats in the test procedure, bring a great deal of inconvenience for maintainer, and extravagant a large amount of energy problems.
The following detailed description is to be read with reference to the drawings and the detailed description.
Fig. 1 is a schematic diagram of an energy-saving power load testing apparatus, fig. 2 is a schematic diagram of a cabinet of an energy-saving power load testing apparatus, please refer to fig. 1 and fig. 2, the present application provides an energy-saving power load testing apparatus 100, including:
an ac test section 01 including a first input connection terminal 11, a second input connection terminal 12, a first ac switch 21, and a second ac switch 22; the first input connection terminal 11 is electrically connected to the first ac switch 21; the second input connection terminal 12 is electrically connected to the second ac switch 22;
a dc test part 02 including a third input connection terminal 13, a fourth input connection terminal 14, a high voltage dc switch 23, a low voltage dc switch 24, a high voltage inverter 25, and a low voltage inverter 26; the third input wiring terminal 13 is electrically connected with the high-voltage direct-current switch 23, and the input end of the high-voltage inverter 25 is electrically connected with the high-voltage direct-current switch 23; the fourth input connection terminal 14 is electrically connected with the low-voltage direct-current switch 24, and the input end of the low-voltage inverter 26 is electrically connected with the low-voltage direct-current switch 24;
the synchronization detection module 03 comprises an intra-local power grid sensor 35, a power supply test sensor 37, a controller 32, a synchronization detection indicator lamp 33, an automatic closing indicator lamp 34 and a synchronization detection execution device 36; the input end of the local power grid sensor 35 is electrically connected with a local power grid, the output end of the local power grid sensor 35 is electrically connected with the controller 32, the input end of the power supply test sensor 37 is electrically connected with the output end of the alternating current test part 01 or the direct current test part 02, the output end of the power supply test sensor 37 is electrically connected with the controller 32, the controller 32 is electrically connected with the inspection synchronization indicator lamp 33, the controller 32 is electrically connected with the automatic closing indicator lamp 34, and the controller 32 is electrically connected with the inspection synchronization execution device 36;
and the output part 04 comprises a load switch 31 and an output wiring bar 41, wherein the load switch 31 is electrically connected with the controller 32, and the load switch 31 is electrically connected with the output wiring bar 41.
Specifically, the ac test section 01 includes a first input connection terminal 11, a second input connection terminal 12, a first ac switch 21, and a second ac switch 22; the first input connection terminal 11 is electrically connected with the first ac switch 21, and optionally, the first ac switch is used for accessing a generator set type power supply, and the generator set is accessed to the energy-saving power supply load testing device 100 through the first input connection terminal 11; the second input connection terminal 12 is electrically connected to a second ac switch 22, which is optionally used for connecting a power supply of the UPS (uninterruptible power supply) type, which is connected to the energy-saving power supply load testing device 100 via the second input connection terminal 12. In addition, some of the tested ac power sources are large, some are relatively small, and the minimum regulation range of the switch is 10% of the rated current thereof, specifically, the present application provides an alternative embodiment in which the rated current of the first ac switch 21 is 5000A, so that the rated current of the second ac switch 22 is 1000A. Assuming that the power supply to be tested is a 3200KW generator set, a switch with rated current of 5000A is required, and at this time, the energy-saving power supply load testing device 100 can be selectively connected through the first ac switch 21. Alternatively, the minimum regulation range of the first ac switch 21 is 10% of its rated current, so that devices with rated current below 500A cannot be tested, so the rated current of the second ac switch 22 is selected to be 1000A, and the current of the second ac switch 22 can be adjusted to be 100A at the minimum, so that when the rated current required by the power supply to be tested is small, testing by the second ac switch 21 can be selected. Such a configuration can cover almost all devices that need to be tested.
A dc test part 02 including a third input connection terminal 13, a fourth input connection terminal 14, a high voltage dc switch 23, a low voltage dc switch 24, a high voltage inverter 25, and a low voltage inverter 26; the third input connection terminal 13 is electrically connected to the high voltage dc switch 23, and the input terminal of the high voltage inverter 25 is electrically connected to the high voltage dc switch 23, optionally, the high voltage battery pack is connected to the energy saving power load testing apparatus 100 through the third input connection terminal 13. The fourth input connection terminal 14 is electrically connected to a low-voltage dc switch 24, and the input of a low-voltage inverter 26 is electrically connected to the low-voltage dc switch 24, optionally for switching in a low-voltage battery pack type power supply, which is switched in the energy-saving power supply load testing device 100 via the fourth input connection terminal 14. The power sources connected to the energy-saving power load testing apparatus 100 through the third input connecting terminal 13 and the fourth input connecting terminal 14 are both dc power sources, and therefore, the two paths are respectively provided with the high-voltage inverter 25 and the low-voltage inverter 26 to invert the dc power into ac power and output the ac power.
The power supply passes through the alternating current testing part 01 or the direct current testing part 02 and is finally input into the synchronization detecting module 03 in the form of alternating current, and the power supply testing sensor 37 in the synchronization detecting module 03 is responsible for receiving the alternating current output by the alternating current testing part 01 or the direct current testing part 02 and then performs synchronization detection with the electricity of the local power grid received by the local power grid sensor 35. The conditions for merging the received electricity with the electricity of the grid are: the frequency, voltage and phase of electricity must be consistent with the frequency, voltage and phase of the power grid. When the conditions are met, the synchronization is called; the process of checking whether the condition is satisfied is called a check period. The controller 32 sends a working instruction to the synchronous detection execution device 36, the synchronous detection starts, the synchronous detection indicator lamp 33 is on, when the synchronous detection reaches the standard, the controller 32 sends a stop instruction to the synchronous detection execution device 36, the controller 32 sends a closing instruction to the load switch 31, the load switch 31 is automatically closed at the moment, the synchronous detection indicator lamp 33 is turned off, the automatic closing indicator lamp 34 is on, and the tested electric energy is sent to the local power grid.
With continuing reference to fig. 1 and fig. 2, optionally, a dual-way automatic transfer switch 40 is further included, the dual-way automatic transfer switch 40 is electrically connected to the power test sensor 37, and only one of the ac test portion 01 or the dc test portion 02 is turned on at the same time based on the switching function of the dual-way automatic transfer switch 40.
Specifically, since the synchronization stage module 03 is a shared device, only one power supply can be tested at any time, and therefore, at the same time, the synchronization stage module 03 is electrically connected to only one of the ac test section 01 and the dc test section 02 through the two-way automatic changeover switch 40. In an optional embodiment mode of the application, a two-way automatic transfer switch 40 is used, an alternating current testing part 01 and a direct current testing part 02 are completely isolated electrically, and the setting is carried out in the testing process of a generator set, at the moment, a high-voltage storage battery testing line can be connected, after the testing of the generator set is finished, the high-voltage storage battery immediately starts an inverter system, when the high-voltage storage battery is waited for discharging, the testing line of the generator set can be detached, a UPS power supply testing line is accessed, when the testing of the high-voltage storage battery is finished, the UPS power supply testing is immediately started, in the UPS power supply testing process, the testing line of the high-voltage storage battery can be detached, the testing line of a low-voltage storage battery is accessed, when the UPS low-voltage storage battery is waited for discharging, the testing line of the next group of testing equipment can be detached, and the setting is carried out in such a way, and the use efficiency is improved.
In an alternative embodiment of the present application, the first ac switch 21 and the second ac switch 22 implement a mechanical interlock 27, and the high-voltage dc switch 23 and the low-voltage dc switch 24 implement a mechanical interlock 27.
Specifically, the first alternating current switch 21 and the second alternating current switch 22 are arranged to implement a mechanical interlock 27, the high-voltage direct current switch 23 and the low-voltage direct current switch 24 are arranged to implement the mechanical interlock 27, and the first alternating current switch 21 and the second alternating current switch 22 can only be conducted, and the high-voltage direct current switch 23 and the low-voltage direct current switch 24 can only be conducted, so that the safety of the device is ensured.
In an optional embodiment of the present application, the energy-saving power load testing apparatus 100 further includes four indicator lights 50, where the four input connection terminals 10 are respectively connected to four power supplies with different load properties, and the indicator lights respectively correspond to four loads with different properties.
Specifically, when the first input connection terminal 11 is connected to a generator set to start testing, the corresponding generator set indicator lamp 51 is turned on; when the second input wiring terminal 12 is connected to a UPS and begins to test, the corresponding UPS indicator lamp 52 is turned on; when the third input connecting terminal 13 is connected to the high-voltage direct-current storage battery pack to start testing, the corresponding high-voltage direct-current storage battery pack indicator lamp 53 is turned on; when the fourth input connection terminal 14 is connected to the low-voltage direct-current storage battery pack to start testing, the corresponding low-voltage direct-current storage battery pack indicator lamp 54 is turned on.
Optionally, the controller 32 in this embodiment is a tripartite MICROPANEL-31 controller or a cathego GU641B controller, and the controller 32 is configured to receive signals transmitted by the power test sensor 37 and the local grid sensor 35, perform synchronization detection according to signal control, and control the load switch 31 to automatically switch on or switch off.
The application provides an alternative embodiment, a certain communication station needs to test the following devices, namely one generator set with the power of 3200KW, 5 UPS power supplies with the power of 400KW each, 240V/4 groups of high-voltage storage battery packs with the single group capacity of 1000AH, 48V/4 groups of low-voltage storage battery packs with the single group capacity of 3000AH. The capacity of the test equipment needs to be compared with the capacity of an energy-saving power supply load test switch before testing equipment, for the test of a storage battery pack, the capacity of an inverter needs to be checked besides the capacity of the switch, after the capacity of the switch and the capacity of the inverter meet load requirements, the equipment can be tested one by one, a generator set is connected through a first input connecting terminal 11, a first alternating current switch 21 is conducted, the generator set starts to be tested, during the stable period of the equipment, the high-voltage storage battery pack is connected through a third input connecting terminal 13, after the test of the generator set is finished, a high-voltage direct current switch 23 is conducted, the high-voltage storage battery pack starts to be tested, during the discharge period of the storage battery pack, the wiring of the generator set is removed, a UPS power supply is connected through a second input connecting terminal 12, after the test of the high-voltage storage battery pack is finished, the second alternating current switch 22 is conducted, the UPS power supply starts to be tested, during the test of the UPS power supply, the wiring of the high-voltage storage battery pack is removed, after the test of the UPS power supply is finished, the low-voltage storage battery pack is connected through a fourth input connecting terminal, after the test of the UPS power supply is finished, the low-voltage direct current switch 24 is conducted, and the wiring is removed after the test is finished. Thus, using the energy-saving power load testing device 100, a large amount of heat generated during the testing process is reduced, and a large amount of energy loss is reduced, compared to the conventional load resistance consumption test.
The utility model provides another optional embodiment does, the notice that the planned power failure of grid company was received to certain medium and small communication office station, communication office station power failure needs generating set electricity generation, switch over to generating set power supply through communication office station master switch, the commercial power is switched over to the commercial power supply through communication office station master switch again when the commercial power is in the incoming telegram, the power transmission is stopped twice during the period, there are hundreds of equipment auto-shutdowns, the automatic restart, the interior electric wire netting of office produces twice surges, often equipment protection shut down, both brought the hidden danger for communication network, simultaneously increased a large amount of work load for maintainer. Therefore, the energy-saving power supply load testing device 100 can be adopted, before the mains supply has a power failure, the generator set is connected with the power grid through the energy-saving power supply load testing device 100, and after the mains supply has a power failure, the communication load is smoothly transferred to the generator set; when the mains supply is powered on, the synchronization detection module 03 is connected to the mains supply side of the main switch of the communication station, synchronization of the mains supply and the generator set is performed, after the synchronization detection is successful, the main switch of the mains supply is switched on, the corresponding switch of the generator set is switched off, and after the generator is shut down, the communication load is smoothly transited to the mains supply.
To sum up, the utility model provides a pair of energy-saving power load testing arrangement has realized following beneficial effect at least:
the application provides an energy-saving power load testing arrangement, includes: the alternating current testing part comprises two input wiring terminals and two alternating current switches; the direct current testing part comprises two input wiring terminals and a corresponding high-voltage direct current switch, a corresponding low-voltage direct current switch, a corresponding high-voltage inverter and a corresponding low-voltage inverter; the synchronization detection module comprises an intra-office power grid sensor, a power supply test sensor, a controller, a synchronization detection indicator lamp, an automatic closing indicator lamp and a synchronization detection execution device; and the output part comprises a load switch and an output wiring bank. Loads with different properties correspond to different test lines, a direct current power supply needs to convert direct current into alternating current through an inverter, the electricity of the loads or the electricity of the inverters is detected through a detection synchronization module, when the frequency, the voltage and the phase of the electricity of the loads or the electricity converted by the inverters are respectively the same as the frequency, the voltage and the phase of a power grid, the detection synchronization module sends a command to a load switch, and the load switch sends the electricity of the loads to the power grid for grid connection.
Although certain specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the foregoing examples are for purposes of illustration only and are not intended to limit the scope of the invention. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the invention. The scope of the invention is defined by the appended claims.
Claims (4)
1. An energy-saving power load testing device, comprising:
the alternating current testing part comprises a first input wiring terminal, a second input wiring terminal, a first alternating current switch and a second alternating current switch; the first input wiring terminal is electrically connected with the first alternating current switch; the second input wiring terminal is electrically connected with the second alternating current switch;
the direct current testing part comprises a third input wiring terminal, a fourth input wiring terminal, a high-voltage direct current switch, a low-voltage direct current switch, a high-voltage inverter and a low-voltage inverter; the third input wiring terminal is electrically connected with the high-voltage direct-current switch, and the input end of the high-voltage inverter is electrically connected with the high-voltage direct-current switch; the fourth input wiring terminal is electrically connected with the low-voltage direct-current switch, and the input end of the low-voltage inverter is electrically connected with the low-voltage direct-current switch;
the synchronization detection module comprises an intra-local power grid sensor, a power supply test sensor, a controller, a synchronization detection indicator light, an automatic closing indicator light and a synchronization detection execution device; the input end of the local power grid sensor is electrically connected with a local power grid, and the output end of the local power grid sensor is electrically connected with the controller; the input end of the power supply test sensor is electrically connected with the output end of the alternating current test part or the direct current test part; the controller is electrically connected with the synchronization period indicating lamp; the controller is electrically connected with the automatic closing indicating lamp; the controller is electrically connected with the checking synchronization executing device;
and the output part comprises a load switch and an output wiring bar, the load switch is electrically connected with the controller, and the load switch is electrically connected with the output wiring bar.
2. The energy-saving power load testing device according to claim 1, further comprising a dual-path automatic transfer switch electrically connected to the power testing sensor, wherein only one of the ac testing part and the dc testing part is turned on at the same time based on an operation of the dual-path automatic transfer switch.
3. The energy saving power load testing apparatus according to claim 1, wherein the first ac switch and the second ac switch are mechanically interlocked, and the high voltage dc switch and the low voltage dc switch are mechanically interlocked.
4. The energy-saving power load testing device according to claim 1, further comprising four indicator lights, wherein the first input connection terminal, the second input connection terminal, the third input connection terminal and the fourth input connection terminal are respectively connected to four power supplies with different load properties, and the indicator lights respectively correspond to four loads with different load properties.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222229312.2U CN218412844U (en) | 2022-08-23 | 2022-08-23 | Energy-saving power load testing device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202222229312.2U CN218412844U (en) | 2022-08-23 | 2022-08-23 | Energy-saving power load testing device |
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| CN218412844U true CN218412844U (en) | 2023-01-31 |
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| CN202222229312.2U Active CN218412844U (en) | 2022-08-23 | 2022-08-23 | Energy-saving power load testing device |
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