CN213903773U - Electric energy meter carrier module dynamic and static power consumption testing device - Google Patents
Electric energy meter carrier module dynamic and static power consumption testing device Download PDFInfo
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- CN213903773U CN213903773U CN202022501969.0U CN202022501969U CN213903773U CN 213903773 U CN213903773 U CN 213903773U CN 202022501969 U CN202022501969 U CN 202022501969U CN 213903773 U CN213903773 U CN 213903773U
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Abstract
A dynamic and static power consumption testing device for a carrier module of an electric energy meter comprises a power meter, a single chip microcomputer controller, a liquid crystal display, a concentrator, an isolating switch and the electric energy meter with a carrier module slot. Before testing the dynamic and static power consumption of the carrier module, the electric energy meter carrier module slot is not inserted with the module, the isolating switch is disconnected, and the power consumption of the electric energy meter when the electric energy meter works alone is measured and recorded; when the static power consumption of the carrier module is tested, the tested module is inserted into the electric energy meter, the isolating switch is disconnected, and the power consumption value measured by the power meter subtracts the power consumption of the electric energy meter when the electric energy meter works alone at the moment, so that the static power consumption of the carrier module is obtained; when the dynamic power consumption of the carrier module is tested, the tested module is inserted into the electric energy meter, the isolating switch is closed, the concentrator is enabled to be continuously communicated with the electric energy meter, and the power consumption value measured by the power meter subtracts the power consumption when the electric energy meter works alone, namely the dynamic power consumption of the carrier module. The device combines the actual working environment on site, and the measured dynamic and static power consumption data of the carrier module is more real and reliable.
Description
Technical Field
The utility model relates to an electric energy meter carrier module sound attitude consumption testing arrangement belongs to electric energy meter technical field.
Background
At present, a carrier communication module (carrier module or communication unit for short) is generally installed on an electric energy meter, and the electric energy meter with the carrier module can communicate with a station concentrator through a power line. And the station concentrator transmits the read data such as the electric energy of the electric energy meter and the like to a background main station for storage, so that the remote meter reading function is realized. Because the carrier modules are used in large quantity, national network companies specially make relevant technical specifications so as to strengthen the quality control of the carrier modules. In the state network enterprise label Q/GDW 1374.3-2013 technical specification part 3 of the power consumer power utilization information acquisition system: in the technical specification of the communication unit, the dynamic and static power consumption indexes of the carrier module of the electric energy meter are definitely specified, and the static power consumption of the carrier module of the single-phase meter is required to be less than 0.6W, and the dynamic power consumption is required to be less than 1.5W.
The existing power consumption testing method of the carrier module mainly aims at the carrier module, the tested carrier module is installed in a special slot, and then communication between a concentrator and the carrier module is simulated through a copying controller, so that the dynamic and static power consumption of the carrier module is measured. The testing method is complex to implement, and the measured value is not representative without combining with the actual working environment of the field.
Publication No. CN107707276A discloses a power consumption detection device based on a broadband power line carrier communication unit, including: the device comprises a power supply load unit, a direct current power consumption testing unit, a micro control unit, a network communication unit and a display unit. However, this device has the following problems: the device independently tests the electric energy meter communication unit and the concentrator communication unit, the testing method is greatly different from an actual operation environment, and the tested power consumption is only the power consumption in a laboratory simulation environment and does not have a practical reference value. The electric energy meter communication unit and the concentrator communication unit are carrier modules which are used as a component to be inserted on the electric energy meter and the concentrator, so that local communication between the electric energy meter and the concentrator is realized. In order to actually test the power consumption of the communication unit (also called as a carrier module of the electric energy meter) of the electric energy meter, the carrier module of the electric energy meter should be inserted into the electric energy meter to test the electric energy meter under the actual working environment. The device disclosed in the publication No. CN107707276A provides a stable dc voltage for the electric energy meter communication unit and the concentrator communication unit through the power load unit, which is also inconsistent with the actual working environment of the tested object; when the electric energy meter communication unit and the concentrator communication unit work actually, electricity is taken from the electric energy meter and the concentrator respectively, the quality of a power supply provided by the electric energy meter and the concentrator is different from that of a power supply load unit of the device, and therefore the difference exists between a dynamic and static power consumption test value and an actual result of the carrier module.
Disclosure of Invention
The utility model aims at providing a problem that the current carrier wave module consumption test method exists in order to solve, provides an electric energy meter carrier wave module sound attitude consumption testing arrangement.
The utility model adopts the following technical scheme that the dynamic and static power consumption testing device for the carrier module of the electric energy meter comprises a power meter, a single chip microcomputer controller, a liquid crystal display, a concentrator, an isolating switch and the electric energy meter with a carrier module slot; the power meter is connected in series in the live wire L, and one end of the power meter is connected to the zero line N; the single chip microcomputer controller is connected with the power meter through a serial port line; the liquid crystal display is connected with the singlechip controller and is used for displaying power consumption data information; one end of the electric energy meter is connected to the power meter, and the other end of the electric energy meter is directly connected with the zero line N; the inlet side of the isolating switch is respectively connected with the live wire L and the zero line N, and the outlet side of the isolating switch is connected with the concentrator; and the carrier module realizes dynamic and static power consumption testing through a power meter.
The power meter is positioned at the front end of the electric energy meter, and the current power consumption is calculated in real time by obtaining the line current and voltage values; the single chip microcomputer controller continuously reads the power consumption value measured by the power meter in real time, and the average value of nearly 10 times of measurement is taken as the measured value.
The static power consumption of the carrier module refers to the power consumption when the carrier module is inserted into the electric energy meter and does not communicate with the outside after power is taken from the electric energy meter, and can also be understood as the power consumption when the carrier module is in standby;
the dynamic power consumption of the carrier module refers to the power consumption of the carrier module inserted into the electric energy meter and continuously communicating with the outside after the carrier module gets electricity on the electric energy meter, and can also be understood as the power consumption of the carrier module when the carrier module works.
The dynamic and static power consumption test steps of the carrier module are as follows:
(1) the carrier module is not installed in the electric energy meter, the isolating switch is in an off state, and the average value of nearly 10 measurements is taken as a measured value and is recorded as P0；
(2) Installing a carrier module in the electric energy meter, disconnecting the isolating switch in a disconnected state, taking the average value of nearly 10 measurements as a measured value, and recording the value as P1；
(3) Installing carrier module in the electric energy meter, making the isolating switch be in closed state, making the concentrator repeatedly read the electric energy meter, taking the average value of nearly 10 measurements as measured value, and recording as P2；
(4) Calculating the dynamic and static power consumption of the carrier module, wherein the static power consumption is P1 - P0Dynamic power consumption of P2 - P0；
(5) And comparing the measured dynamic static power consumption value of the carrier module with a standard limit value, and judging that the carrier module is qualified for test only if the static power consumption and the dynamic power consumption both meet the requirements.
The utility model discloses an operating principle as follows, the utility model discloses the device is through testing respectively the electric energy meter not insert carrier module, the electric energy meter inserts carrier module not with concentrator communication (the consumption of electric energy meter carrier module is static consumption this moment), the electric energy meter inserts carrier module and with the consumption value of concentrator communication (the consumption of electric energy meter carrier module is dynamic consumption this moment) three kinds of circumstances to reach the dynamic and static consumption value of electric energy meter carrier module under the actual operating mode.
The beneficial effects of the utility model are that, the utility model relates to an electric energy meter carrier module sound attitude consumption testing arrangement can simply effectual measurement carrier module's sound attitude consumption. The running environment of the carrier module is consistent with the actual working environment in the field during testing, and the average value is obtained through multiple times of measurement, so that the noise interference is reduced, and the measured dynamic and static power consumption data of the carrier module is more real and reliable.
The utility model is suitable for an electric energy meter carrier module sound dynamic power consumption test.
Drawings
Fig. 1 is the utility model relates to a dynamic and static power consumption testing arrangement circuit structure of electric energy meter carrier module.
Detailed Description
The specific embodiment of the present invention is shown in fig. 1.
The embodiment provides a dynamic and static power consumption testing device for an electric energy meter carrier module, which comprises a power meter, a single chip microcomputer controller, a liquid crystal display, a concentrator, an isolating switch and an electric energy meter with a carrier module slot.
The power meter is connected in series in the live wire L, and one end of the power meter is connected to the zero line N; the single chip microcomputer controller is connected with the power meter through a serial port line; the liquid crystal display is connected with the singlechip controller and is used for displaying power consumption data information; one end of the electric energy meter is connected to the power meter, and the other end of the electric energy meter is directly connected with the zero line N; the inlet side of the isolating switch is respectively connected with the live wire L and the zero line N, and the outlet side of the isolating switch is connected with the concentrator; and the carrier module realizes dynamic and static power consumption testing.
The power meter is positioned at the front end of the electric energy meter, and the current power consumption is calculated in real time by obtaining the line current and voltage values.
The single chip microcomputer controller and the power meter are communicated through a serial port, after the device is powered on, the single chip microcomputer controller continuously reads the power consumption value measured by the power meter in real time, the average value of nearly 10 times of measurement is taken as a measured value, and the value is displayed through the liquid crystal display. The speed at which the power count value is read can be configured as desired, set by default to ten reads per second,
the dynamic and static power consumption testing step of the carrier module:
(1) the carrier module is not installed in the electric energy meter, the isolating switch is in a disconnected state, the power consumption value measured by the power meter is the power consumption of the naked electric energy meter, the average value of nearly 10 times of measurement is taken as a measured value and is recorded as P0；
(2) Installing a carrier module in the electric energy meter, enabling the isolating switch to be in an off state, enabling the power consumption value measured by the power meter to be the sum of the self power consumption of the bare electric energy meter and the static power consumption of the carrier module, taking the average value of nearly 10 measurements as a measured value, and recording the measured value as P1；
(3) Installing a carrier module in the electric energy meter, enabling the isolating switch to be in a closed state, enabling the concentrator to repeatedly read the electric energy meter, taking the power consumption value measured by the power meter as the sum of the self power consumption of the bare electric energy meter and the dynamic power consumption of the carrier module, taking the average value of nearly 10 measurements as a measured value, and recording the measured value as P2;
(4) Calculating the dynamic and static power consumption of the carrier module, wherein the static power consumption is P1 - P0Dynamic power consumption of P2 - P0；
(5) And comparing the measured dynamic static power consumption value of the carrier module with a standard limit value, taking the single-phase electric energy meter carrier module as an example, and judging that the carrier module is qualified in test only if the static power consumption is less than 0.6W and the dynamic power consumption is less than 1.5W simultaneously meet the requirements.
Claims (2)
1. A device for testing dynamic and static power consumption of an electric energy meter carrier module is characterized by comprising a power meter, a single chip microcomputer controller, a liquid crystal display, a concentrator, an isolating switch and an electric energy meter with a carrier module slot; the power meter is connected in series in the live wire L, and one end of the power meter is connected to the zero line N; the single chip microcomputer controller is connected with the power meter through a serial port line; the liquid crystal display is connected with the singlechip controller and is used for displaying power consumption data information; one end of the electric energy meter is connected to the power meter, and the other end of the electric energy meter is directly connected with the zero line N; the inlet side of the isolating switch is respectively connected with the live wire L and the zero line N, and the outlet side of the isolating switch is connected with the concentrator.
2. The device for testing the dynamic and static power consumption of the carrier module of the electric energy meter according to claim 1, wherein the power meter is positioned at the front end of the electric energy meter, and the current power consumption is calculated in real time by obtaining the current and voltage values of a line; the single chip microcomputer controller continuously reads the power consumption value measured by the power meter in real time, and the average value of nearly 10 times of measurement is taken as the measured value.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202022501969.0U CN213903773U (en) | 2020-11-03 | 2020-11-03 | Electric energy meter carrier module dynamic and static power consumption testing device |
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| CN202022501969.0U CN213903773U (en) | 2020-11-03 | 2020-11-03 | Electric energy meter carrier module dynamic and static power consumption testing device |
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| CN213903773U true CN213903773U (en) | 2021-08-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394316A (en) * | 2020-11-03 | 2021-02-23 | 国网江西省电力有限公司电力科学研究院 | Device and method for testing dynamic and static power consumption of carrier module of electric energy meter |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112394316A (en) * | 2020-11-03 | 2021-02-23 | 国网江西省电力有限公司电力科学研究院 | Device and method for testing dynamic and static power consumption of carrier module of electric energy meter |
| CN112394316B (en) * | 2020-11-03 | 2024-05-14 | 国网江西省电力有限公司电力科学研究院 | Dynamic and static power consumption testing device and method for carrier module of electric energy meter |
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