Cut Sheet

Page 5
SE-330HV Neutral-Grounding-Resistor Monitor Rev. 5-I-091115
shown in Fig. 18. Connect them as shown in Fig. 3.
RK-332 components are not polarity sensitive.
Indication relays can be set to fail-safe or non-fail-safe
operation using the SE-MON330 software or network
communications. The default mode is non-fail-safe. In
non-fail-safe mode, relays energize on fault.
Network-enabled SE-330HV’s can be remotely tripped
and reset by the network master. The red DIAGNOSTIC
LED indicates a network-initiated trip. See Section 2.7.
Refer to the appropriate SE-330HV communications
manual.
2.5 R
ELAY K1 LED
The yellow RELAY K1 LED follows the state of relay
K1 and is on when K1 is energized (contact closed).
2.6 U
NIT HEALTHY OUTPUT
UNIT HEALTHY relay K4 is energized when the
processor is operating. It can be ordered with N.O. or
N.C. contacts. See Section 7.
N
OTE: The output changes state momentarily during a
processor reset.
N
OTE: K4-contact rating is 100 mA maximum.
2.7 D
IAGNOSTIC LED
The DIAGNOSTIC LED is used to annunciate trips
without individual LED indication. The number of short
LED pulses between pauses indicates the cause of the trip.
See Section 5.
2.8 A
NALOG OUTPUT
An isolated 4-20-mA output indicates NGR current
with full-scale output corresponding to the CT rating. An
internal 24-Vdc supply allows the analog output to be
connected as a self-powered output. Power from an
external supply is required for loop-powered operation.
See Fig. 2. A PGA-0520 analog meter can be panel-
mounted to display the NGR current. See Fig. 19 and
Section 7.
+24V
+
-
0V
+24V
+
-
0V
18
19
20
21
18
19
20
21
LOOP
SUPPLY
+
-
SELF POWERED
LOOP POWERED
PGA-0520
PGA-0520
FIGURE 2. Analog-Output Connections.