Cut Sheet

Page 7
SE-330HV Neutral-Grounding-Resistor Monitor Rev. 5-I-091115
NOTE 18
L1
C
+
NOTE 13
XXX:1
OR
XXX:5
8
9
10
11
S1
5C
SE-330HV
ALTERNATE CT
CONNECTIONS
TRANSFORMER
OR GENERATOR
NOTE 1
NEUTRAL
NOTE 2
EFCT-X
OR
SE-CS30-X
NOTES 12 & 13
NOTE 3
N
NGR
ER-SERIES
SENSING
RESISTOR
R
G
NOTE 4
NOTE 6
N/- SUPPLY
8910
11
S
1
5
C
5 A
1 A
EFCT
L/+ SUPPLY
1
22
26
29
12
14
15
16
17
3
4
5
REMOTE
RESET
OPTIONAL
NETWORK COM
NOTE 11
SE-330HV
SPGA
SPG
RESET
ANALOG OUTPUT
NO
CONNECTION
NOTE 8
UNIT HEALTHY
K4
RF
K3
GF
K2
K1
NOTE 7
R
G
L2/N
+24V
-
0V
6
7
2
23
24
25
27
28
13
18
19
20
21
NOTE 9
RESISTOR
FAULT
GROUND
FAULT
NOTE 14 & 15
NOTE 15
NOTES:
1. USE SEPARATE LUG TO CONNECT SENSING-
RESISTOR TERMINAL N TO NEUTRAL.
2. LOCATE THESE COMPONENTS NEAR
TRANSFORMER OR GENERATOR.
3. ALTERNATE SENSING-RESISTOR TERMINAL-N
CONNECTION. THE NEUTRAL CONNECTION
IS NOT MONITORED.
4. VOLTAGE BETWEEN SENSING-RESISTOR
TERMINALS R AND G IS LIMITED TO 100 V BY
INTERNAL CLAMP.
5. ALTERNATE CT LOCATION. NGR MUST ONLY
BE GROUNDED AT ONE POINT AS SHOWN.
6. SEE SECTION 3.4 FOR ISOLATED-GROUND
CONNECTION.
7. RELAY CONTACTS SHOWN WITH SE-330HV
DE-ENERGIZED.
8. OPTIONAL N.C. K4 AVAILABLE.
9. LOOP-POWERED CONNECTION USES
TERMINALS 19 AND 20 ONLY.
10. MINI B USB DEVICE CONNECTOR.
11. REFER TO APPROPRIATE SE-330HV
COMMUNICATIONS INTERFACE MANUAL.
12. TWO-CONDUCTOR TWISTED CABLE
REQUIRED. SHIELDED OR ARMOURED
RECOMMENDED.
13. CT CONNECTION IS NOT POLARITY
SENSITIVE.
14. CONNECT CONTACTS K1, K2, K3, AND K4
AS REQUIRED FOR PROTECTION,
INDICATION, AND CONTROL.
15. EXTERNAL LIGHTS AND SWITCHES NOT
INCLUDED WITH SE-330HV.
16. SELF-POWERED 4-20 mA OUTPUT.
17. TYPICAL TRIPPING SYSTEM.
18. GROUND CURRENT SENSOR AT TERMINAL 11
ONLY.
NOTE 5
C
NOTE 17
PGA-0520
NOTE 16
USB PORT
NOTE 10
MICRO SD
SLOT
R
INDICATION
R
R
G
Y
G
GROUND-FAULT
TRIP
RESISTOR-
FAULT TRIP
DIAGNOSTIC
CALIBRATED
RELAY K1
POWER
NO
CONNECTION
FIGURE 3. SE-330HV Connection Diagram.