Electric power measurement comprehensive device

Abstract

The invention discloses an electric power measurement comprehensive device. A power signal circuit board, a control circuit board and a display circuit board are sequentially arranged in a shell from bottom to top. A face mask with a transparent plate is arranged at the opening end of the shell. The display circuit board is provided with a plurality of digital display tubes. The display circuit board is provided with a temperature sensor and a humidity sensor, the temperature sensor and the humidity sensor are connected with a microprocessor on the control circuit board, and the microprocessor is connected with a buzzer alarm device. When the temperature and the humidity of the device are higher than a set upper limit value and a set lower limit value, a sound alarm can be given out, and the temperature and the humidity of a power distribution chamber are reminded to be adjusted. Meanwhile, no matter whether a digital tube display or a liquid crystal display is mounted on the display circuit board, the same set of outer shell mold can be used, and thus the pressure of goods preparation of mold products is greatly lowered. The electric power measurement comprehensive device is further provided with a temperature and humidity external probe which is used for measuring the environment, and the temperature and the humidity of the environment are detected.

Description

technical field [0001] The invention relates to a power device, in particular to a power measurement comprehensive device. Background technique [0002] The intelligent network multifunctional power meter is designed for the power monitoring needs of power systems, industrial and mining enterprises, public facilities, and intelligent buildings. It can measure all common power parameters, such as three-phase current, voltage, active and reactive power, electric degree, harmonics, etc. Because the power meter also has a complete communication networking function, we call it a network multi-function power meter. The intelligent network multifunctional power meter has a high performance-price ratio and can directly replace conventional power transmitters and measuring instruments. As an advanced intelligent and digital front-end acquisition component, this series of network instruments has been widely used in various control systems (such as: SCADA data acquisition and monitor...

AI Technical Summary

Problems solved by technology

[0003] Existing intelligent network multifunctional power meters are generally installed in the power distribution room, which is equipped with temperature and humidity monitoring devices, which play a very good role in monitoring the environment of the power distribution room, but the temperature and humidity of the power distribution room The monitoring device only monitors the overall environment of the power distribution room, and cannot accurately monitor the temperature and humidity of the specific power meter. When the temperature and humidity of the power meter are too high or too low, the temperature and humidity monitoring device of the power distribution room does not monitor If the temperature and humidity of the power distribution room cannot be changed in time, it will damage the power meter and even cause the power meter to fail to work effectively, reducing the working life of the power meter

[0004] At the same time, in order to reduce the cost and adapt to the space reserved for the power meter in the cabinet, the existing electric meter usually adopts a general-purpose shell, but the electric meter with a digital tube for display needs a relatively high shell height due to the height of the power tube. High, this will lead to different housings for power meters with digital tube display and power meters with liquid crystal display, which will lead to pressure on the production of power meters

[0005] In addition, the existing power meters have no sound prompt setting, there is no intuitive sound prompt sound when setting parameters by pressing keys, and there is no alarm sound prompt function for a single meter; the assembly is complicated, and the production process is backward, resulting in low production efficiency

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