Substation integrated automation system communication protocol commonly used interfaces

In the power system, the Nanjing NARI Group Corporation completed thousands of substation integrated automation system projects in the rail transport, has been completed in Guangzhou Metro Line 2 Nanjing subway north-south line, Chongqing Light Rail line, Wuhan Light Master station substation integrated automation system work

Cheng, Beijing Metro Line 5 integrated  Voltage stabilizer and power monitoring project. In the actual project the successful realization of many domestic and foreign manufacturers of automation equipment interconnected intelligent device information has accumulated rich experience in engineering practice.

71 single-phase meter

Single-phase meter, the use of voltage and current coil eddy current generated on the aluminum plate and the interaction of the alternating magnetic flux generates electromagnetic force, the aluminum disk rotation, while the introduction of braking torque, the aluminum disc speed is proportional to the load power by the axial gear,  electric transformer by the product of degrees rotary table

The number of measured power. Therefore, the main structure is determined by the voltage meter coil current coil, wheel, shaft, brake magnets, gears, counters and other components.

72 electrical degrees how to calculate

Nameplate should be based on the current transformer turns ratio below the number corresponding to the magnification accounting. Electricity meter index x magnification = 1, such a turn corresponds to 100/5, the actual wearing two turns, it turns ratio 50/5, should be 10 times. 2, such as 2-turn corresponds to 100/5, the actual also wore two turns,

Of 20 times magnification should be