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MK201A DT Earth Fault Relay User's
Guide
A BRIEF OVERVIEW
a
b
c
d
h
g
f
e
a - Auxiliary power supply indicator
b - High-set start/trip status indicator
c - Low-set start/trip status indicator
d - Earth-fault high-set adjustment
e - Trip reset button
f - Test button
g - Earth-fault low-set adjustment
h - Delay time adjustment