A new type of electricity metering device for power lines
A technology of electricity metering and power lines, which is applied in the direction of measuring devices, measuring electrical variables, and measuring electricity, and can solve the problems of large floor area, complex metering equipment, and large investment
Active Publication Date: 2017-07-11
江苏韬博智能科技有限公司
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Problems solved by technology
The traditional metering method is to use high-voltage voltage transformers, current transformers, arresters to prevent lightning strikes, and metering instruments for metering. This metering method has the disadvantages of complex metering equipment, large investment, and large floor space, especially when it is placed outdoors. The metering equipment is damaged by lightning strikes. Therefore, the traditional metering equipment can no longer meet the needs of the measured high-voltage line for real-time metering of the user-side load power consumption.
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[0020] Such as figure 1 As shown, a new power line electricity metering device includes three electricity metering devices and an electricity metering device, and the three electricity metering devices are connected wirelessly to the electricity metering device through a wireless transceiver module, and the electricity metering device includes Electrodes, electric energy metering chips, and open-type current transformers. The electrodes of the three electricity measuring devices are respectively connected to the three phases of the high-voltage lines A, B, and C to be measured. According to the principle of the field strength method, the electrodes will couple out The small voltage signal with the same frequency and phase as the high-voltage line under test is used to measure the current signal of the high-voltage line under test at the same time, and the collected current signal and voltage phase signal are sent to the power metering chip for power parameter measurement. The ...
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The invention discloses a novel electric quantity metering device of an electric power circuit. The novel electric quantity metering device comprises three electric quantity measuring devices and an electric quantity metering device body. The three electric quantity measuring devices are wirelessly connected with the electric quantity metering device body through a wireless receiving and sending module, the electric quantity measuring devices comprise electrodes, electric energy metering chips and opening type current transformers, and the electrodes of the three electric quantity measuring devices are hooked on the phase A, the phase B and the phase C of a measured high-voltage wire respectively. Meanwhile, the opening type current transformers are utilized for measuring the current of an electric transmission line, collected current signals and voltage phase signals are respectively fed into an electric energy metering chip for electric energy parameter metering, and a result obtained through metering is transmitted to the electric quantity metering device body in real time through the wireless receiving and sending module. After receiving data, the electric quantity metering device body correspondingly calculates the data, and high-voltage line electric energy parameters of the phase A, the phase B and the phase C are displayed on a liquid crystal displayer in real time.
Description
technical field [0001] The invention relates to a novel electricity metering device for power lines, which belongs to the technical field of power system equipment. Background technique [0002] With the continuous increase of social electricity load, the requirements for power supply reliability are also constantly improving. As the last link of power supply to users, the operation status of power distribution equipment directly affects the quality of power supply to users. Due to the large number of power distribution equipment , The distribution area is wide and scattered, limited by personnel, measuring equipment and quantity, usually only need to measure the electricity consumption of a few or dozens of users, the easiest way is to measure the 10-35KV measured high-voltage line at the input end of these users electricity. The traditional metering method is to use high-voltage voltage transformers, current transformers, arresters to prevent lightning strikes, and meteri...
Claims
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IPC IPC(8): G01R22/10G01R31/00
Inventor 宋佳佳张金波万至达段明浩赵浩然
Owner 江苏韬博智能科技有限公司