Why is ''Shanghai Metro'' Frequently Trending?

The hot search of Shanghai subway is always going on, and almost every line is a beautiful scenic line, known as the "Internet celebrity" in the subway, and every once in a while the hot search of once again!

Needless to say, the most popular passenger flow during the holiday has to mention Line 11 of Shanghai Metro, also known as Shenjia Line, Shanghai Suzhou Line and Chinese Mainland Disneyland Line.

Line 11 roughly runs in a northwest southeast direction, passing through Pudong New Area, Xuhui District, Changning District, Putuo District, Jiading District, and Kunshan in Jiangsu Province. With a total length of about 82.4 kilometers, it exceeds the Central Line of the London Underground in the UK and is the world's longest subway line, as well as the first inter provincial subway line in China.

There are currently 38 stations on this line, including 8 transfer stations. Adopting two main and branch lines, the main line runs from Jiading North Station to Disney Station, the branch line runs from Huaqiao Station to Disney Station, and merges at Jiading New City Station. The third phase starts from Luoshan Road Station and ends at Disney Station. Xiuyan Road Station and Kangxin Road Station were opened on December 19, 2015, and Disney Station was put into trial operation on April 26, 2016.

The PD19 series multifunctional power instruments from Jiangsu Sfere Electric Co., Ltd. have been selected for Line 11. This series of instruments is suitable for power monitoring and energy consumption assessment in distribution electric fields such as rail transit, industrial and mining enterprises, public facilities, and intelligent buildings. It is an intelligent distribution instrument product with high precision, reliability, and cost-effectiveness.

Functional characteristics

Accuracy level

Active energy level 0.5S, reactive energy level 2

Fundamental wave electric quantity measurement

Three phase fundamental voltage, three-phase fundamental current, phase separation and total fundamental active power, phase separation and total fundamental reactive power, phase separation and total fundamental apparent power, fundamental power factor

Power quality monitoring

Total harmonic distortion rate, 2-15th harmonic content, sequence component, phase, imbalance, average value, voltage peak coefficient, current K coefficient

Input output

Electric energy output pulse, RS485 communication interface, switch input, relay output, and analog output

Full battery measurement

Three phase voltage, three phase current, split phase and total active power, split phase and total reactive power, split phase and total apparent power, split phase and total power factor, frequency, demand

Electricity metering

Bidirectional active/reactive energy, four quadrant reactive energy, apparent energy, and compound rate energy (optional)

Data record

Demand records, maximum/minimum value records