CN219737625U - Power factor monitoring alarm device for box-type transformer substation - Google Patents
Power factor monitoring alarm device for box-type transformer substation Download PDFInfo
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- CN219737625U CN219737625U CN202321238126.3U CN202321238126U CN219737625U CN 219737625 U CN219737625 U CN 219737625U CN 202321238126 U CN202321238126 U CN 202321238126U CN 219737625 U CN219737625 U CN 219737625U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 21
- 238000001514 detection method Methods 0.000 abstract description 5
- 238000005070 sampling Methods 0.000 abstract description 4
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- 238000010586 diagram Methods 0.000 description 2
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- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013065 commercial product Substances 0.000 description 1
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Abstract
The utility model discloses a power factor monitoring alarm device for a box-type transformer substation, wherein a high-voltage cabinet is arranged in the box-type transformer substation; a voltage-current transformer is arranged in the high-voltage cabinet; comprising the following steps: the system comprises a power factor converter, a PLC control module, a touch display screen, a GPRS module and an alarm; the power factor converter is electrically connected with the voltage-current transformer; the power factor converter is electrically connected with the PLC control module. The power factor converter is connected with the voltage current transformer in the high-voltage regulation, so that three-phase alternating current synchronous sampling of the box-type transformer substation is realized, the sampling comprehensiveness is improved, the accuracy of a detection result is improved, and the occurrence of a missing detection condition is avoided.
Description
Technical Field
The utility model relates to the technical field of box-type substations, in particular to a power factor monitoring alarm device for a box-type substation.
Background
The power factor is an important technical parameter in a power system of a box-type transformer substation, and an inductive load such as a motor can enable a power grid to generate inductive reactive current so as to generate reactive power, so that the power factor of the box-type transformer substation is reduced, the power supply line loss and the voltage loss are increased, the power supply quality is reduced, a user is subjected to penalty processing after being recorded by a power supply bureau, the use cost of the user is increased, and the use experience of the user is reduced.
In the prior art, two signal output modules are additionally arranged on a reactive compensation controller, wherein output signals are set to be 24V, +COS@COS@and a signal public end are total, and then the purpose of prompting is achieved through control of a time relay KT and an intermediate relay KM, such as a reactive capacitance compensator alarm system of the box-type transformer substation disclosed in CN 201220154314.3. The device simple structure has certain alarming function, but owing to adopt two signal output modules to add on the reactive compensation controller, can't carry out comprehensive monitoring to each item parameter of box-type substation, lead to the alarm result often to have the condition of missing report, influence monitoring accuracy.
Disclosure of Invention
The utility model provides a power factor monitoring alarm device for a box-type transformer substation, which is used for solving the technical problem that the power factor cannot be timely alarmed after being reduced in the prior art.
The utility model provides a power factor monitoring alarm device for a box-type transformer substation, wherein a high-voltage cabinet is arranged in the box-type transformer substation; a voltage-current transformer is arranged in the high-voltage cabinet; comprising the following steps: the system comprises a power factor converter, a PLC control module, a touch display screen, a GPRS module and an alarm;
the power factor converter is electrically connected with the voltage-current transformer;
the power factor converter is electrically connected with the PLC control module;
the PLC control module is respectively and electrically connected with the touch display screen, the GPRS module and the alarm.
Preferably, it comprises: the power supply module is respectively in power supply connection with the power factor converter, the PLC control module, the touch display screen, the GPRS module and the alarm.
Preferably, it comprises: fusing the insurance module; the PLC control module is in power supply connection with the power supply module through the fusing insurance module.
Preferably, it comprises: a relay; the PLC control module is electrically connected with the alarm through a relay.
Preferably, it comprises: a remote client; the remote client is electrically connected with the GPRS module.
Preferably, the power supply module includes: a first switching power supply and a second switching power supply; the first switching power supply is respectively connected with the power factor converter, the PLC control module, the touch display screen, the GPRS module and the alarm in a power supply manner; the second switching power supply is respectively connected with the power factor converter, the PLC control module, the touch display screen, the GPRS module and the alarm in a power supply manner.
The utility model has the beneficial effects that:
1) According to the power factor monitoring alarm device for the box-type transformer substation, provided by the utility model, the power factor converter is connected with the voltage current transformer in the high-voltage regulation, so that three-phase alternating current synchronous sampling of the box-type transformer substation is realized, the sampling comprehensiveness is improved, the accuracy of a detection result is improved, and the occurrence of a missing detection condition is avoided.
2) According to the power factor monitoring alarm device for the box-type substation, the PLC control module is electrically connected with the touch display screen, the GPRS module and the alarm, so that real-time alarm reminding of users around the box-type substation and real-time alarm of remote clients are realized, fine suffered by the users is effectively avoided, and the use experience of the users is improved.
Drawings
FIG. 1 is a schematic connection diagram of a power factor monitoring alarm device module for a box-type substation;
fig. 2 is a schematic diagram of an electrical connection principle of the power factor monitoring alarm device for the box-type substation;
legend description:
1. a power supply module; 2. a power factor converter; 3. a PLC control module; 4. touching the display screen; 5. an alarm; 51. a relay; 6. a GPRS module; 61. a remote client; 7. and fusing the insurance module.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.
The controller used in this embodiment is an existing structure, and the control circuit can be implemented by simple programming by a person skilled in the art, and it is common knowledge in the art that the controller is only used, and is not modified, so that the control mode and circuit connection will not be described in detail.
The technical means which are not described in detail and are not used for solving the technical problems of the utility model are all arranged according to common general knowledge in the field, and various common general knowledge arrangement modes can be realized.
Referring to fig. 1 to 2, the power factor monitoring alarm device for a box-type substation provided by the utility model comprises: the power supply module 1 is used for supplying power to each power utilization module, and specifically can supply power to the fusing insurance module 7, the PLC control module 3, the power factor converter 2, the touch screen display, the alarm 5 and the GPRS module 6 respectively. The specific power supply connection mode can be installed and connected according to the power supply line of the electric connection module, and can specifically supply power in a serial or parallel mode, and the specific reference can be seen in fig. 2.
The power supply module 1 is a switching power supply and is used for converting 220V alternating current commercial power into 24V direct current for power supply. The modules used may be commercially available power supplies meeting the functional requirements described above. The specific manufacturer is CMG-10 model of Yunnan Chengming electric appliance Co.
The power factor converter 2 converts the power factor by measuring active power and reactive power, and is a commercial product, and the model of a factory store of the intelligent Internet of things of specific factories is E1-3DLCJ-V2 AC400V5A. All interfaces of the power factor converter 2 are respectively and electrically connected with the interfaces of the voltage and current transformers in the high-voltage cabinet, and through the electric connection, the comprehensive value of the three-phase alternating current and the voltage of the high-voltage cabinet can be realized, the accuracy and the precision of a monitoring result are improved, and the occurrence of missing report and false report conditions is reduced.
In order to realize the alarm function, the monitoring parameters acquired by the power factor converter 2 are compared and judged with the parameters input by the high-voltage and low-voltage wires through the PLC control module 3 which is electrically connected with the power factor converter, and the on-site alarm is carried out through the alarm 5 and the touch display screen 4 which are electrically connected with the PLC control module 3, so that alarm signals are output, and the specific connection mode is shown in figure 2. The specific model of the PLC control module 3 is S7-200 SMART touch display screen 4, and the specific model of the PLC control module 3 is OP320. The specific parameter comparison is processed after being set according to a common preset program of the existing module.
In order to improve the use safety, the PLC control module 3 is electrically connected with the power supply module 1 through the fusing insurance module 7, and when the voltage and the current of the power supply module 1 are abnormal, the fusing insurance module 7 blocks the current, so that the protection of the PLC control module 3 is realized.
In order to send alarm information to the remote user, the PLC control module 3 is also electrically connected to the GPRS module 6. The GPRS module 6 can transmit an alarm signal and the position of the high-voltage cabinet to the remote client 61, so that a single person can effectively monitor a plurality of high-voltage cabinets, and the output detection efficiency after alarming is improved. The macro-electric model of a specific manufacturer of the GPRS module 6 is H7710C 4G DTU (full network). The remote client 61 may be a device capable of receiving GPRS signals, for example a purchased GPRS module 6 signal receiver.
In a specific embodiment, the power supply module 1 includes: a first switching power supply and a second switching power supply; the two switching power supplies respectively supply power to the power factor converter 2, the PLC control module 3, the touch display screen 4, the GPRS module 6 and the alarm 5, so that the power supply reliability of the equipment is improved, and the situation that the alarm cannot be given out due to equipment outage in the using process is avoided.
In a specific embodiment, the alarm 5 is electrically connected to the PLC control module 3 through a relay 51.
The device can remind the user in advance to deal with the problem of insufficient power factor, and avoid being penalized by a power supply bureau.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (6)
1. A power factor monitoring alarm device for a box-type transformer substation is provided with a high-voltage cabinet in the box-type transformer substation; a voltage-current transformer is arranged in the high-voltage cabinet; characterized by comprising the following steps: the system comprises a power factor converter, a PLC control module, a touch display screen, a GPRS module and an alarm;
the power factor converter is electrically connected with the voltage-current transformer;
the power factor converter is electrically connected with the PLC control module;
the PLC control module is respectively and electrically connected with the touch display screen, the GPRS module and the alarm.
2. The power factor monitoring alarm device for a box-type substation according to claim 1, comprising: the power supply module is respectively in power supply connection with the power factor converter, the PLC control module, the touch display screen, the GPRS module and the alarm.
3. The power factor monitoring alarm device for a box-type substation according to claim 2, comprising: fusing the insurance module; the PLC control module is in power supply connection with the power supply module through the fusing insurance module.
4. The power factor monitoring alarm device for a box-type substation according to claim 1, comprising: a relay; the PLC control module is electrically connected with the alarm through a relay.
5. The power factor monitoring alarm device for a box-type substation according to claim 1, comprising: a remote client; the remote client is electrically connected with the GPRS module.
6. The power factor monitoring alarm device for a box-type substation according to claim 1, wherein the power supply module comprises: a first switching power supply and a second switching power supply; the first switching power supply is respectively connected with the power factor converter, the PLC control module, the touch display screen, the GPRS module and the alarm in a power supply manner; the second switching power supply is respectively connected with the power factor converter, the PLC control module, the touch display screen, the GPRS module and the alarm in a power supply manner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321238126.3U CN219737625U (en) | 2023-05-19 | 2023-05-19 | Power factor monitoring alarm device for box-type transformer substation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321238126.3U CN219737625U (en) | 2023-05-19 | 2023-05-19 | Power factor monitoring alarm device for box-type transformer substation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219737625U true CN219737625U (en) | 2023-09-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321238126.3U Active CN219737625U (en) | 2023-05-19 | 2023-05-19 | Power factor monitoring alarm device for box-type transformer substation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219737625U (en) |
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2023
- 2023-05-19 CN CN202321238126.3U patent/CN219737625U/en active Active
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