Schneider Electric Launches New 'EOCR'
Published2020.10.28 11:19Planned to export to 20 countries worldwide in compliance with international standards
Schneider Electric announced on the 28th that it is launching two new electronic motor protection relays (EOCR: Electronic Over Current Relay), ‘EOCR PFZ’ and ‘EOCRSS-400U’.
The newly launched product supports real-time communication so that Internet of Things (IoT) technology can be applied, and has built-in temperature and humidity sensors and analog outputs, enabling application and status monitoring for various customer demand environments.
'EOCR PFZ' enables real-time analysis through the total harmonic distortion measurement and protection function, which is an indicator of the degree of waveform distortion caused by harmonics.
In addition, the load current setting range for motor protection has been expanded from 0.5 to 60 A to an applicable range of 100 A compared to existing products. Accordingly, it is possible to prevent malfunction of the capacitive leakage current and ground fault protection function due to harmonics and high frequencies through the harmonic (THD) analysis function up to the 16th order and the digital low pass filter setting function. Even if a fault occurs, the waveform recorded in EOCR and the date and time of the fault can be recorded in dedicated software to save and analyze the information.
It is possible to measure accurate current by improving the error rate to 1% through True-RMS measurement, breaking away from the existing peak voltage measurement method. It ensures operation in a more sensitive environment for protection of electric shock, fire, and equipment due to leakage current in industrial sites. The minimum detection current can be set to 30mA, and it operates within 30mSec when leakage current is detected.
In addition, it has a built-in ZCT (Zero Current Transformer) to improve installation space, time, and wiring. The LED display allows you to check the operation, stop, and communication status. It has a built-in RTC (Real Time Clock) to check accident history time, etc.
In addition, the EOCRSS-400U supports a wide current range from 30A to 440A and has a built-in current transformer for high-current instruments.
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