제품정보 > WOODWARD > Protection Relay MRA4
Directional Overcurrent & Ground (Earth) Fault Protection – Interconnection Specialist
MRA4 is ideal for industrial and utility directional feeder applications. Very large protection package (reclosing, load shedding, load restoration, demand management, monitoring functions,... )

ANSI: 50, 51, 67, 51C, 51V, 50N, 51N, 67N, 46, 49, 27, 59, 59N, 81U/O, 60FL, 79, 86, 50BF, 74TC , 81R, 78, 47, 60FL, 60L, 32F, 25, 37F, 32Q, 37Q, 37QR, 32S, 37S, 37R, 55, 51C, LVRT , Q->V, UFLS