Earth Leakage Tester. Courtesy of Major Tech. This device allows you to test your ELCB by generating an earth leakage current between 10mA and 35mA through a socket outlet.
Micrologic 6offersrecurringearth-fault security OR resource ground come back security.
Residual earth-fault securitywill be provided by calculating the vectorial amount of the currents of device CT secondary. In 3P circuit breakers thé CT on thé neutral conductor is outside the outlet breaker. In our offer this CT is definitely the 'exterior sensor for éarth-fault and neutral security'. For 4 pole circuit breakers we don'capital t require the exterior natural sensor because it will be integrated in the routine breaker'h neutral pole.
Supply ground come back securitycan be using a unique exterior sensor (SGR + MDGF). This function directly steps the fault current returning to thé transformer via thé earth cable. The insulation fault current is assessed in the neutral-earth link of thé LV transformér.
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In the layouts before please see the different connection diagrams for earth-fault and supply ground return rights.
Earth-leakage defensefunction primarily protects people against indirect contact because an earth leakage current can provoke raise in the potential of open conductive parts. For earth-leakage safety an exterior square sensor is definitely needed. The exterior square sensor will be required for the earth leakage safety for all 3P and 4P circuit breakers.
Residual surface fault |