CN212780991U - Nuclear phase equipment - Google Patents
Nuclear phase equipment Download PDFInfo
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- CN212780991U CN212780991U CN202021407431.7U CN202021407431U CN212780991U CN 212780991 U CN212780991 U CN 212780991U CN 202021407431 U CN202021407431 U CN 202021407431U CN 212780991 U CN212780991 U CN 212780991U
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- 230000016507 interphase Effects 0.000 claims abstract description 29
- 238000012360 testing method Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims description 22
- 230000007935 neutral effect Effects 0.000 claims description 10
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 9
- 230000009466 transformation Effects 0.000 claims description 9
- 238000000034 method Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 4
- 238000000819 phase cycle Methods 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
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Abstract
The application discloses nuclear phase equipment, including first wiring terminal group, second wiring terminal group, nuclear phase circuit, display device and at least one control button. The first wiring terminal group is used for being electrically connected with a lead of a first system to be tested; the second wiring terminal group is used for being electrically connected with a lead of a second system to be tested; the control key is used for receiving a control command input by a user and outputting a routing signal to the nuclear phase circuit based on the control command; the nuclear phase circuit detects the voltage between the first lead and the first lead, the voltage between the first lead and the second lead and the voltage between the second lead and the second lead based on the routing signal to obtain a plurality of interphase voltage values; the display device is used for displaying the interphase voltage value. The phase-to-phase voltage value can reflect whether the phases of the leads of the two systems to be tested are consistent or not, so that the phase checking test can be automatically completed without manual phase checking by a tester, and the phase checking efficiency is improved.
Description
Technical Field
The application relates to the technical field of electric power, in particular to nuclear phase equipment.
Background
The secondary phase checking of the voltage transformer is a frequent operation of maintenance personnel of the power system. Under the conditions that after a transformer or a voltage transformer is installed or overhauled, internal and external wiring or wiring groups are changed, power supply lines or cable wiring are changed or trends are changed, and voltage secondary circuits related to loop closing or paralleling are changed during overhauling, three-phase voltage phase checking, namely phase checking tests, are required to be carried out so as to ensure that three-phase sequences of secondary voltages provided by different power supply points are consistent.
The phase checking test is to check whether the phase sequences of two power systems, such as a power system, a transformer or a voltage transformer, which need to be closed or connected in parallel are consistent, and only if the phase sequences are consistent, the two power systems can be closed or connected in parallel. At present, a mode commonly adopted by a nuclear phase test is a field manual judgment method, namely, a tester uses a universal meter to measure the voltage of two systems, compares the phases of the voltages of the two systems, and then judges whether the phases are consistent. This is not only dangerous, but also inefficient.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present application provides a nuclear phase apparatus for determining whether phase sequences of two systems requiring loop closing or parallel connection are consistent, so as to avoid increasing nuclear phase efficiency.
In order to achieve the above object, the following solutions are proposed:
a nuclear phase equipment comprises a first wiring terminal group, a second wiring terminal group, a nuclear phase circuit, a display device and at least one control key, wherein the nuclear phase circuit is respectively connected with the first wiring terminal group, the second wiring terminal group, the display device and the control key, and the nuclear phase circuit comprises:
the first wiring terminal group is used for being electrically connected with a plurality of first leads of a first system to be tested according to a preset line sequence;
the second wiring terminal group is used for being electrically connected with a plurality of second leads of a second system to be tested according to a preset line sequence;
the control key is used for receiving a control command input by a user and outputting a routing signal to the nuclear phase circuit based on the control command;
the nuclear phase circuit detects the voltage between the first lead and the first lead, the voltage between the first lead and the second lead and the voltage between the second lead and the second lead based on the routing signal to obtain a plurality of interphase voltage values;
the display device is used for displaying the interphase voltage value.
Optionally, the plurality of first leads include a first U-phase lead, a first V-phase lead, a first W-phase lead, a first zero-sequence voltage L-lead, and a first neutral N-lead of the first system under test.
Optionally, the plurality of second leads include a second U-phase lead, a second V-phase lead, a second W-phase lead, a second zero-sequence voltage L-lead, and a second neutral N-lead of the second system under test.
Optionally, the nuclear phase circuit includes a processor, a routing module, and a voltage detection module, and the processor is provided with a command input terminal, a signal output terminal, a data input terminal, and a display output terminal, where:
the command input end is in signal connection with the control key and is used for receiving the control command;
the signal output end is in signal connection with the routing module and is used for outputting a routing signal to the routing module;
the data input end is in signal connection with the voltage detection module and is used for receiving the plurality of interphase voltage values output by the voltage detection module;
the display output end is in signal connection with the display device and is used for outputting the plurality of interphase voltage values to the display device;
the routing module is used for electrically connecting two terminals with the input end of the voltage detection module based on the routing signal, wherein the two terminals are two wiring terminals in the first wiring terminal group, one wiring terminal in the first wiring terminal group and one wiring terminal in the second wiring terminal group or two wiring terminals in the second wiring terminal group;
and the voltage detection module is used for checking the voltage between the two terminals to obtain and output the plurality of interphase voltage values.
Optionally, the voltage detection module includes a voltage transformation module, a rectification module, a voltage division module, a filtering module, and an AD conversion module, wherein:
the input end of the primary side of the voltage transformation module is used as the input end of the voltage detection module;
the input end of the rectification module is electrically connected with the output end of the voltage transformation module;
the input end of the voltage division module is electrically connected with the output end of the rectification module;
the input end of the filtering module is electrically connected with the output end of the rectifying module;
the input end of the AD conversion module is electrically connected with the output end of the filtering module, and the output end of the AD conversion module is used for outputting the multiple interphase voltage values.
According to the technical scheme, the nuclear phase equipment comprises a first wiring terminal group, a second wiring terminal group, a nuclear phase circuit, a display device and at least one control key. The first wiring terminal group is used for being electrically connected with a lead of a first system to be tested; the second wiring terminal group is used for being electrically connected with a lead of a second system to be tested; the control key is used for receiving a control command input by a user and outputting a routing signal to the nuclear phase circuit based on the control command; the nuclear phase circuit detects the voltage between the first lead and the first lead, the voltage between the first lead and the second lead and the voltage between the second lead and the second lead based on the routing signal to obtain a plurality of interphase voltage values; the display device is used for displaying the interphase voltage value. The phase-to-phase voltage value can reflect whether the phases of the leads of the two systems to be tested are consistent or not, so that the phase checking test can be automatically completed without manual phase checking by a tester, and the phase checking efficiency is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings 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 application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic diagram of a nuclear phase apparatus according to an embodiment of the present disclosure;
FIG. 2 is a circuit diagram of a nuclear phase apparatus according to an embodiment of the present application;
fig. 3 is a circuit diagram of a voltage detection circuit according to an embodiment of the present application.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Fig. 1 is a schematic diagram of a nuclear phase apparatus according to an embodiment of the present disclosure.
For convenience of description, in this embodiment, the two power systems to be subjected to phase checking are referred to as a first system to be checked and a second system to be checked, where the first system to be checked includes multiple first leads, which are a first U-phase lead, a first V-phase lead, a first W-phase lead, a first zero-sequence voltage L-lead, and a first neutral N-lead, respectively; the second system to be tested comprises a plurality of second leads which are respectively a second U-phase lead, a second V-phase lead, a second W-phase lead, a second zero-sequence voltage L lead and a second neutral N lead.
As shown in fig. 1, the phase checking device includes a case 100, a first terminal group 10 and a second terminal group 20 disposed on an outer wall of the case, a display device 30, one or more control buttons F0, F1, F2, and F3, and a phase checking circuit (not shown) disposed inside the case.
The nuclear phase circuit is electrically or signal-connected with the first wiring terminal group, the second wiring terminal group, the display device and the control key respectively.
The first terminal group is functionally used for connecting a plurality of first leads of a first system to be tested in a certain sequence, and therefore, the first terminal group comprises a plurality of first terminals, respectively U, V, W, L, N. The first zero-sequence voltage L lead, the first neutral N lead and the first U-phase lead, the first V-phase lead, the first W-phase lead, the first zero-sequence voltage L lead and the first neutral N lead are respectively corresponding to the first U-phase lead, the first V-phase lead, the first W-phase lead.
The second connection terminal group is functionally used for connecting a plurality of second leads of a second system to be tested in a certain sequence, and therefore, the second connection terminal group comprises a plurality of second connection terminals which are respectively U ', V ', W ', L ' and N '. The second zero-sequence voltage L lead, the second neutral N lead and the second U-phase lead, the second V-phase lead, the second W-phase lead are respectively corresponding to the first U-phase lead, the second V-phase lead, the second W-phase lead and the second neutral N lead.
During measurement, a plurality of first leads are required to be connected to corresponding wiring terminals of the first wiring terminals; similarly, the plurality of second leads are connected to corresponding ones of the second connection terminals, respectively.
The control key is used for receiving control commands of a user, such as display commands, closing commands, display switching commands and the like, outputting corresponding routing signals to the phase checking circuit after receiving the control commands, wherein the routing signals are used for selecting the wiring terminals to be measured, and after selecting a specific wiring terminal, the phase checking circuit can detect the voltage value between phases of the specific wiring terminal.
Under the control of the corresponding routing signal, the nuclear phase circuit can automatically detect all or part of the inter-phase voltage between the first lead and the first lead, the inter-phase voltage between the first lead and the second lead and the inter-phase voltage between the second lead and the second lead, so that a plurality of inter-phase voltage values are obtained. And outputs the inter-phase voltage value and the plurality of single-phase voltage values to a display device for display.
The display device is used for receiving one or more phase-to-phase voltage values and displaying part or all of the phase-to-phase voltage values by using the display interface, and the control keys can also input corresponding control instructions so as to control the display types and the number of the phase-to-phase voltage values. It is worth pointing out that the inter-phase voltage value can reflect whether the phases of the leads between the first system to be tested and the second system to be tested are consistent, namely, the result of the nuclear phase test is displayed.
The display device is used for displaying the inter-phase voltage value and/or the single-phase voltage values.
It can be seen from the foregoing technical solutions that, this embodiment provides a phase checking device, which includes a first connection terminal group, a second connection terminal group, a phase checking circuit, a display device, and at least one control button. The first wiring terminal group is used for being electrically connected with a plurality of first leads of a first system to be tested according to a preset line sequence; the second wiring terminal group is used for being electrically connected with a plurality of second leads of a second system to be tested according to a preset line sequence; the control key is used for receiving a control command input by a user and outputting a routing signal to the nuclear phase circuit based on the control command; the nuclear phase circuit detects the voltage between the first lead and the first lead, the voltage between the first lead and the second lead and the voltage between the second lead and the second lead based on the routing signal to obtain a plurality of interphase voltage values; the display device is used for displaying the interphase voltage value. The phase-to-phase voltage value can reflect whether the phases of the leads of the two systems to be tested are consistent or not, so that the phase checking test can be automatically completed without manual phase checking by a tester, and the phase checking efficiency is improved.
In one embodiment of the present application, the nuclear phase circuit includes a processor 50, a routing module 60, and a voltage detection module 70, as shown in FIG. 2. The processor is provided with a command input 51, a signal output 52, a data input 53 and a display output 54.
The command input end is in signal connection with the control key and is used for receiving a control command; the signal output end is in signal connection with the routing module and is used for outputting a routing signal to the routing module; the data input end is in signal connection with the voltage detection module and is used for receiving a plurality of interphase voltage values output by the voltage detection module; the display output end is in signal connection with the display device and is used for outputting a plurality of interphase voltage values to the display device;
the route selection module electrically connects two terminals with the input end of the voltage detection module based on the route selection signal, wherein the two terminals are two wiring terminals in the first wiring terminal group, one wiring terminal in the first wiring terminal group and one wiring terminal in the second wiring terminal group, and two wiring terminals in the second wiring terminal group;
the voltage detection module is used for checking the voltage between the two wiring terminals so as to obtain a plurality of interphase voltage values.
The voltage detection module includes a voltage transformation module 71, a rectification module 72, a voltage division module 73, a filtering module 74 and an AD conversion module 75, as shown in fig. 3. The input end of the primary side of the voltage transformation module is used as the input end of the voltage detection module; the input end of the rectification module is electrically connected with the output end of the voltage transformation module; the input end of the voltage division module is electrically connected with the output end of the rectification module; the input end of the filtering module is electrically connected with the output end of the rectifying module; the input end of the AD conversion module is electrically connected with the output end of the filtering module, and the output end of the AD conversion module is used for outputting a plurality of interphase voltage values.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
While preferred embodiments of the present application have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. Therefore, it is intended that the appended claims be interpreted as including the preferred embodiment and all such alterations and modifications as fall within the true scope of the embodiments of the application.
Finally, it should also be noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or terminal that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or terminal. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or terminal that comprises the element.
The technical solutions provided by the present application are introduced in detail, and specific examples are applied in the description to explain the principles and embodiments of the present application, and the descriptions of the above examples are only used to help understanding the method and the core ideas of the present application; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (5)
1. A nuclear phase equipment, comprising a first wiring terminal group, a second wiring terminal group, a nuclear phase circuit, a display device and at least one control key, wherein the nuclear phase circuit is respectively connected with the first wiring terminal group, the second wiring terminal group, the display device and the control key, wherein:
the first wiring terminal group is used for being electrically connected with a plurality of first leads of a first system to be tested according to a preset line sequence;
the second wiring terminal group is used for being electrically connected with a plurality of second leads of a second system to be tested according to a preset line sequence;
the control key is used for receiving a control command input by a user and outputting a routing signal to the nuclear phase circuit based on the control command;
the nuclear phase circuit detects the voltage between the first lead and the first lead, the voltage between the first lead and the second lead and the voltage between the second lead and the second lead based on the routing signal to obtain a plurality of interphase voltage values;
the display device is used for displaying the interphase voltage value and/or the single-phase voltage values.
2. The nuclear phase apparatus of claim 1, wherein the plurality of first leads includes a first U-phase lead, a first V-phase lead, a first W-phase lead, a first zero sequence voltage L-lead, and a first neutral N-lead of the first system-under-test.
3. The nuclear phase apparatus of claim 1, wherein the plurality of second leads includes a second U-phase lead, a second V-phase lead, a second W-phase lead, a second zero-sequence voltage Llead, and a second neutral N-lead of the second system-under-test.
4. The nuclear phase device of claim 1, wherein the nuclear phase circuit comprises a processor, a routing module, and a voltage detection module, the processor having a command input, a signal output, a data input, and a display output, wherein:
the command input end is in signal connection with the control key and is used for receiving the control command;
the signal output end is in signal connection with the routing module and is used for outputting a routing signal to the routing module;
the data input end is in signal connection with the voltage detection module and is used for receiving the plurality of interphase voltage values output by the voltage detection module;
the display output end is in signal connection with the display device and is used for outputting the plurality of interphase voltage values to the display device;
the routing module is used for electrically connecting two terminals with the input end of the voltage detection module based on the routing signal, wherein the two terminals are two wiring terminals in the first wiring terminal group, one wiring terminal in the first wiring terminal group and one wiring terminal in the second wiring terminal group or two wiring terminals in the second wiring terminal group;
and the voltage detection module is used for checking the voltage between the two terminals to obtain and output the plurality of interphase voltage values.
5. The nuclear phase device of claim 4, wherein the voltage detection module comprises a transformation module, a rectification module, a voltage division module, a filtering module, and an AD conversion module, wherein:
the input end of the primary side of the voltage transformation module is used as the input end of the voltage detection module;
the input end of the rectification module is electrically connected with the output end of the voltage transformation module;
the input end of the voltage division module is electrically connected with the output end of the rectification module;
the input end of the filtering module is electrically connected with the output end of the rectifying module;
the input end of the AD conversion module is electrically connected with the output end of the filtering module, and the output end of the AD conversion module is used for outputting the multiple interphase voltage values.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021407431.7U CN212780991U (en) | 2020-07-16 | 2020-07-16 | Nuclear phase equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021407431.7U CN212780991U (en) | 2020-07-16 | 2020-07-16 | Nuclear phase equipment |
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| Publication Number | Publication Date |
|---|---|
| CN212780991U true CN212780991U (en) | 2021-03-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021407431.7U Active CN212780991U (en) | 2020-07-16 | 2020-07-16 | Nuclear phase equipment |
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