Self-powered multifunctional electric power meter
A power meter and multi-function technology, applied in the field of self-powered multi-function power meters, can solve the problems of unstable power supply of the multi-function power meter, and achieve the effect of simple structure and easy realization.
Inactive Publication Date: 2018-10-16
HENAN SENYUAN ELECTRIC CO LTD
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Problems solved by technology
[0004] The purpose of the present invention is to provide a self-powered multifunctional power meter, which is used to solve the problem of unstable power supply of the multifunctional power meter
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[0014] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0015] The invention provides a self-powered multifunctional power meter, the structural diagram of which is shown in figure 2 As shown, including the power meter body, the power meter body is provided with a power input terminal for receiving working power. The power meter body is also connected with an acquisition unit and a display unit. The acquisition unit is used to collect line voltage and current. The collected The data is sent to the main body of the power meter and displayed on the display unit.
[0016] In order to realize the power supply, the multi-functional power meter adopts the design of the output power supply of the secondary winding of the current transformer, and also includes the power supply current transformer and ...
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The invention relates to a self-powered multifunctional electric power meter, which comprises a electric power meter body, wherein a power supply input end is arranged on the electric power meter body, and also comprises a power supply current transformer and an energy storage device, the primary winding of the power supply current transformer is connected with an alternating current line, the first secondary winding of the power supply current transformer is electrically connected with the input end of the power supply; the second secondary winding is electrically connected with the input endof the energy storage device; and the output end of the energy storage device is electrically connected with the input end of the power supply. According to the invention, the power supply current transformer and the energy storage device are arranged, the two secondary windings of the power supply current transformer are electrically connected with the input end of the power supply and the energy storage device respectively, under normal circumstances, the power supply current transformer is used for directly supplying power to the multifunctional electric power meter, when the power supplycurrent transformer cannot supply power directly, the energy storage device, used as a standby power supply, provides working electric energy to the multifunctional electric power meter, thereby ensuring the continuous and stable operation of the multifunctional electric power meter, and the structure is simple and easy to realize.
Description
technical field [0001] The invention relates to a multifunctional power meter, in particular to a self-powered multifunctional power meter. Background technique [0002] With the continuous development of power automation, the application of multifunctional power meters in distribution cabinets is becoming more and more popular. The schematic diagram of the structure connection of the existing multifunctional power meter is as follows: figure 1 As shown, it includes a power meter body. The power meter body is provided with a power input terminal for connecting a power supply, and is also connected with a collection unit and a display unit for collecting and displaying line voltage and current information. [0003] For the collection and monitoring of electricity, although the multifunctional power meter has brought us great convenience, there are still big problems in the multifunctional power meter. For example: the external power supply of the multi-function power meter ...
Claims
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IPC IPC(8): G01R19/00H02M7/04
CPCH02M7/04G01R19/00
Inventor 屈许良马耀磊王伟张彩玲张俊豪沈梓敏姜寒梅
Owner HENAN SENYUAN ELECTRIC CO LTD