|
3 phase
supply control
relay (Phase
sequence relay) is
designed to
monitor 3 phase
supplies and to
protect motors and
other loads
against the faults
listed below.
-
Monitoring of
rotational
direction of
phases
-
Detection of
complete failure
of one or more
of the phases
-
Undervoltage
detection (-10%)
-
Overvoltage
detection (+10%)
-
Detection of
phase asymmetry
(imbalance)
(±10%)
-
Adjustable time
delay from 0.1s
to 10s
-
SPDT 10A
250VAC(Resistive
load) switch
The relay
operates if any of
the conditions
occurs.
The relay releases
if any of the
conditions fails.
|
