A dual-channel data redundancy high-voltage electric energy direct metering device and method
A technology of data redundancy and electric energy measurement, which is applied in the direction of measuring devices, measuring electrical variables, instruments, etc., can solve the problems of increasing production and manufacturing costs, increasing optical fiber communication channels between phases, increasing the probability of failure of high-voltage electric energy meters, etc., to save manufacturing. cost, reduce production costs, and are not easily affected by the external environment
Inactive Publication Date: 2017-02-15
WUHAN GUOCE HENGTONG INTELLIGENT INSTR
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Problems solved by technology
Its disadvantage is that the three-phase electric energy measurement is completed by conducting the electric energy measurement in phase A and phase C separately to phase B for summing
This will result in an increase in interphase fiber optic communication channels
In addition to increasing manufacturing costs, this structure will also increase the probability of failure of the high-voltage electric energy meter
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[0042] The present invention will be further described below in conjunction with the accompanying drawings.
[0043] as attached figure 1 and 2 As shown, in the high-voltage three-phase alternating current, we select phase A and phase C as the designated phase, and phase B as the reference phase. The current signal sensors La, Lc, electric energy measurement units Ja, Jc, working power sources Da, Dc, communication modules Ta, Tc are respectively installed in the A phase and the C phase, and the voltage signal sensor Xab is installed between the AB phase voltage, and the BC A voltage signal sensor Xbc is installed between the phase voltages, and the output signals of the current signal sensor and the voltage signal sensor are respectively connected to the electric energy measurement units Ja and Jc.
[0044] After the current signal and the voltage signal are input into their respective electric energy measurement units, the electric energy measurement units Ja and Jc perfor...
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The invention discloses a high-voltage electric energy direct metering device with double-channel data redundancy. The high-voltage electric energy direct metering device with double-channel data redundancy comprises two current signal sensors, two metal shielding boxes and two voltage signal sensors. A high-voltage metering device which is composed of a working power supply, an electric energy metering unit and a communication module is arranged in each metal shielding box. The current signal sensors and the voltage signal sensors are both connected with the two electric energy metering units. The two electric energy metering units are connected through an optical fiber. Each working power supply is connected with the corresponding voltage signal sensor and the corresponding electric energy metering unit. Each electric energy metering unit transmits data to a display terminal through a communication module. The invention further discloses a high-voltage electric energy direct metering method with double-channel data redundancy. The high-voltage electric energy direct metering device with double-channel data redundancy is smaller in size, smaller in occupied area and simpler in structure; in addition, more materials are saved, the production cost of a high-voltage body is reduced, communication is more reliable and safer, and data are stored repeatedly, so that data are not prone to being lost.
Description
technical field [0001] The invention belongs to the technical field of electric energy metering, and in particular relates to a high-voltage three-phase electric energy metering device and method, in particular to a high-potential metering device and an electric energy metering device with the characteristics of data redundancy and communication redundancy between high and low voltages. Background technique [0002] There are many existing high-voltage electric energy measurement methods, which can be roughly divided into the following three categories, but there are some problems: [0003] The first category uses traditional electromagnetic current and voltage transformers to reduce high voltage and high current to general low voltage and low current (for example: rated voltage 100 volts, rated current 5 amps or 1A), and then use a low-voltage watt-hour meter Perform energy metering. The advantage of this technology is that it is a classic technology with stable product qu...
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IPC IPC(8): G01R22/06
Inventor 侯铁信卜正良
Owner WUHAN GUOCE HENGTONG INTELLIGENT INSTR
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