The BE1-47N Voltage Phase Sequence Relay provides protection for rotating equipment
from the damaging effects of excessive negative sequence voltage resulting from phase
failure, phase unbalance and reversed phase sequence.ADVANTAGES
• Responds to true negative sequence voltage component.
• Unaffected by frequency variations of ±5 Hz.
• Negative Sequence Voltage adjustment range of 2 - 32 percent.
• Optional Over and Undervoltage measuring elements.
• Low sensing and supply burdens.
• Instantaneous, Definite and Inverse time delay characteristics available for
each measuring element.
• Qualified to the requirements of
— IEEE C37.90.1-1989 and IEC 255 for surge withstand capability;
— IEC 255-5 for impulse.
• UL recognized per Standard 508, UL File #E97033.
• Gost R certified per the relevant standards of Gosstandart of Russia
• Five year warranty