General
SFERE720/Sfere720C is equipped with electrical variable measurement, energy metering and power quality analysis functions. SFERE720/Sfere720C also can be extended with I/O modules for monitoring and controlling equipment at field, realizing system integration with different smart electricity distribution system and energy management system, and sharing monitoring data and energy data.
Features
![1515840650377388.png SFERE720.png](/Uploads/ueditor/image/20180113/1515840650377388.png)
Networks TN,TT,IT networks
Appearance and accuracy -LCD display. -Active energy accuracy:0.5S. -Voltage accuracy:0.1%. -Current accuracy:0.1%
Measuring -Fundamental V/A/P/Q/S -Demand -max./min. Value -Load profile
Data record -Demand record -max./min. Value record -Off-limit record -SOE record
Communication -Modbus-RTU -Modbus-TCP -Profibus-DP
Power quality -Voltage/current THD -Harmonics up to 51st -Unbalance -Sequence component and phase position of voltage and current -Crest factor and K factor -Waveform display -Flicker -Transient (Only Sfere720)
Energy metering -Bi-directional energy -Four-quadrant reactive energy -Tariff energy -Fundamental energy
Multiple modules selection Connected with different modules to extend functions. Four modules can be connected with the meter at most. Modules can plug and play at different ports