经济新常态下 我国智能电网市场发展情况及后市预测 经济新常态下 我国智能电网市场发展情况及后市预测 China's smart grid market development and future forecast under the new economic normal
Technical requirements of high performance IC card prepayment watt hour meter DDSY5558
First, the actual line voltage and current are sampled, and the power signal is generated by the UI multiplier; second, the U/f (voltage/frequency) converter is used to convert the power signal into a pulse signal with a certain frequency, and the pulse signal is converted by the counter Accumulated electricity consumption
Before measuring, first check whether the dial hand stops at the "0" position on the left end. If it does not stop at the "0" position, use a small screwdriver to gently turn the middle positioning screw under the dial to make the pointer point to zero, usually called mechanical zero adjustment . Then insert the red and black test leads into the positive (+) and negative (-) test pen jacks, respectively.
Almost all smart meters are used now. It is more precise and intelligent, making it easier for you to control the power consumption. The smart meters are composed of different circuit boards and are the control center of the meter. They are made of larger blank glass fiber boards. A board can make 6-8 circuit boards, depending on the form of the electricity meter. In order to improve the accuracy of the electricity meter, many processes in the manufacturing process are completed by robots.
The electric meter is used to measure the electric energy consumed in a certain period of time, or the electric energy consumed on the load. It is a measurement device. The measurement unit of the electric meter is kWh (that is, 1 degree), so it is also known as the kWh meter, or electric energy. Meters, electricity meters, are widely used in various fields of society.
