CN202794389U - Electric power monitor - Google Patents
Electric power monitor Download PDFInfo
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- CN202794389U CN202794389U CN 201220435868 CN201220435868U CN202794389U CN 202794389 U CN202794389 U CN 202794389U CN 201220435868 CN201220435868 CN 201220435868 CN 201220435868 U CN201220435868 U CN 201220435868U CN 202794389 U CN202794389 U CN 202794389U
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Abstract
The utility model relates to an electric power monitor. The electric power monitor comprises a casing and a printed circuit board (PCB), wherein a display screen, an indicator light and four keys are arranged in front of the casing; the four keys are arranged below the display screen; a pluggable terminal is arranged at the back of the casing; and the PCB comprises a sampling module, a measuring module, a storage module, an electric energy measuring module, an electric quantity monitoring module, a grid monitoring module, a date and time module and a communication interface which is an RS485 communication interface.
Description
Technical field
The utility model belongs to the support equipment field of electric power equipment, refers to especially a kind of power monitoring equipment.
Background technology
In Operation of Electric Systems, supply station need to be monitored the supply line that monitors, especially at aspects such as electric energy, electric weight, voltage, electric currents.The existing employed watch-dog of supply station generally is sampling thief to be separated with monitoring device arrange, and by communication mode the sampled signal of sampling thief is transferred to monitoring device, transfers data to Surveillance center by monitoring device again.
Although this structure has obvious progress with monitoring device in the past, also can realize long-range unmanned monitoring, but because sampling thief separates with monitoring device, the wireless signal of transmission is interfered easily, particularly when environmental aspect is bad, can't accomplish to monitor accurately.And the power monitoring under this situation is extremely important.
The inventor has proposed the improvement technology according to existing supervising device, can reduce the number of times that signal transmits by this technology, has reduced accordingly the use that the probability that is disturbed has also reduced monitoring equipment simultaneously.
The utility model content
The purpose of this utility model provides a kind of technical scheme, and this scheme can be when guaranteeing electric power monitoring, and the number of times that reduces the signal transmission also can reduce the use of monitoring equipment.
The utility model is achieved through the following technical solutions:
A kind of electric supervising device includes shell and circuit board, and there is display screen the front portion of described shell, and pilot lamp and button, described button have four below display screen, and there is the pulling and inserting type terminal at the rear portion of described housing; Described circuit board includes sampling module, measurement module, memory module, electric energy metering module, electric quantity monitoring module, power network monitoring module, date and time module and communication interface, and described communication interface is the RS485 communication interface; Described pulling and inserting type terminal is at least two and connects respectively sampling module and communication interface; Described memory module, electric energy metering module, electric quantity monitoring module, power network monitoring module, date and time module connect with communication interface respectively and are connected with display screen simultaneously; Described sampling module connects memory module and measurement module simultaneously; Described measurement module respectively same memory module, electric energy metering module, electric quantity monitoring module, power network monitoring module, date and time module and communication interface connects.
Described display screen is Chinese matrix liquid-crystal display screen.
Described sampling module is meritorious/reactive energy pulse output collecting unit.
Described measurement module is high speed MCU+computation chip.
Described electric energy metering module comprises standard electric energy statistic unit, at times electric energy statistic unit, periodically electric energy statistic unit and electric energy protected location.
Described electric quantity monitoring module comprises voltage monitoring unit, current monitoring unit and power monitoring unit.
Described power network monitoring module includes frequency monitoring unit, zero-sequence current monitoring means, degree of unbalancedness monitoring means, phase angle monitoring unit, voltage angle monitoring means and on-off state monitoring means.
The beneficial effects of the utility model are:
The technical program can be when guaranteeing electric power monitoring, and the number of times that reduces the signal transmission also can reduce the use of monitoring equipment, no longer needs independent sampling thief, uses sampling module can finish sampling functions.
Description of drawings
Fig. 1, Facad structure synoptic diagram of the present utility model;
Fig. 2, the utility model rear structure synoptic diagram.
1. shell 2. display screen 31.32.33. pilot lamp
41.42.43.44. button 71.72. pulling and inserting type terminal
8. communication interface
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is elaborated, embodiment of the present utility model is exemplary, only can not be interpreted as it is to restriction of the present utility model for explaining content of the present utility model.
The utility model is achieved through the following technical solutions:
With reference to illustrated in figures 1 and 2, a kind of electric supervising device includes shell 1 and circuit board, there is display screen 2 front portion of described shell, pilot lamp (31,32,33) and button (41,42,43,44), described button has four below display screen, there is pulling and inserting type terminal (71,72) at the rear portion of described housing; Described circuit board includes sampling module, measurement module, and memory module, electric energy metering module, the electric quantity monitoring module, the power network monitoring module, the date and time module, communication interface 8, described communication interface are the RS485 communication interface.
Described pulling and inserting type terminal is at least two and connects respectively sampling module and communication interface; Described memory module, electric energy metering module, electric quantity monitoring module, power network monitoring module, date and time module connect with communication interface respectively and are connected with display screen simultaneously; Described sampling module connects memory module and measurement module simultaneously; Described measurement module respectively same memory module, electric energy metering module, electric quantity monitoring module, power network monitoring module, date and time module and communication interface connects.
Described display screen is Chinese matrix liquid-crystal display screen.
Described sampling module is meritorious/reactive energy pulse output collecting unit.
Described measurement module is high speed MCU+computation chip.
Described electric energy metering module comprises standard electric energy statistic unit, electric energy statistic unit at times, electric energy statistic unit periodically, electric energy protected location.
Described electric quantity monitoring module comprises voltage monitoring unit, current monitoring unit, power monitoring unit.
Described power network monitoring module includes the frequency monitoring unit, zero-sequence current monitoring means, degree of unbalancedness monitoring means, phase angle monitoring unit, voltage angle monitoring means, on-off state monitoring means.
Wherein, electric energy metering module is used for measuring two-way meritorious, reactive energy, the four-quadrant electric energy, and the apparent electric energy can be realized at times electric energy statistics, whole day can be divided into four statistical time ranges; Has periodically electric energy statistical function; The electric energy protection of safety, energy data keeps more than 10 years after having a power failure.
In the electric quantity monitoring module:
Voltage monitoring includes the three-phase phase voltage monitoring, line voltage monitoring, voltage monitoring, the monitoring of Voltage unbalance degree, average voltage monitoring.
Current monitoring includes the three-phase current monitoring, zero-sequence current monitoring, current unbalance factor monitoring, current average monitoring.
Power monitoring includes the three phases active power monitoring, reactive power monitoring, applied power monitoring, power-factor monitoring.
Described above is the utility model specific embodiments and principle of work, and those skilled in the art can improve according to the technical program certainly, and these improve and also belong to this patent protection domain.
Claims (6)
1. an electric supervising device includes shell and circuit board, and there is display screen the front portion of described shell, and pilot lamp and button is characterized in that: described button has four below display screen, and there is the pulling and inserting type terminal at the rear portion of described housing; Described circuit board includes sampling module, measurement module, memory module, electric energy metering module, electric quantity monitoring module, power network monitoring module, date and time module and communication interface, and described communication interface is the RS485 communication interface; Described pulling and inserting type terminal is at least two and connects respectively sampling module and communication interface; Described memory module, electric energy metering module, electric quantity monitoring module, power network monitoring module, date and time module connect with communication interface respectively and are connected with display screen simultaneously; Described sampling module connects memory module and measurement module simultaneously; Described measurement module respectively same memory module, electric energy metering module, electric quantity monitoring module, power network monitoring module, date and time module and communication interface connects.
2. a kind of electric supervising device according to claim 1 is characterized in that: described sampling module is meritorious/reactive energy pulse output collecting unit.
3. a kind of electric supervising device according to claim 1, it is characterized in that: described measurement module is high speed MCU+computation chip.
4. a kind of electric supervising device according to claim 1 is characterized in that: described electric energy metering module comprises standard electric energy statistic unit, at times electric energy statistic unit, periodically electric energy statistic unit and electric energy protected location.
5. a kind of electric supervising device according to claim 1, it is characterized in that: described electric quantity monitoring module comprises voltage monitoring unit, current monitoring unit and power monitoring unit.
6. a kind of electric supervising device according to claim 1, it is characterized in that: described power network monitoring module includes frequency monitoring unit, zero-sequence current monitoring means, degree of unbalancedness monitoring means, phase angle monitoring unit, voltage angle monitoring means and on-off state monitoring means.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220435868 CN202794389U (en) | 2012-08-30 | 2012-08-30 | Electric power monitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220435868 CN202794389U (en) | 2012-08-30 | 2012-08-30 | Electric power monitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202794389U true CN202794389U (en) | 2013-03-13 |
Family
ID=47821631
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220435868 Expired - Fee Related CN202794389U (en) | 2012-08-30 | 2012-08-30 | Electric power monitor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202794389U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114660500A (en) * | 2022-05-19 | 2022-06-24 | 秦皇岛广控科技有限公司 | Three-phase monitoring protection system |
-
2012
- 2012-08-30 CN CN 201220435868 patent/CN202794389U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114660500A (en) * | 2022-05-19 | 2022-06-24 | 秦皇岛广控科技有限公司 | Three-phase monitoring protection system |
| CN114660500B (en) * | 2022-05-19 | 2022-08-19 | 秦皇岛广控科技有限公司 | Three-phase monitoring protection system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 315100 Zhejiang city of Ningbo province Yinzhou District Yunlong Town Road No. 229 cloud Patentee after: NINGBO DEWO INTELLIGENT CO., LTD. Address before: 315135, Ningbo, Zhejiang province Yinzhou District Yunlong Town Mei Chi Industrial Zone Patentee before: Ningbo Dwoo Electric Power Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20170830 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |