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SE-330
Neutral-Grounding-Resistor
Monitor
Rev.
9-A-112913
6. T
ECHNICAL
S
PECIFICATIONS
6.1 SE-330
Supply
Option
0
.................................
30
VA, 120 to 240 Vac
(+10, -45%) 50/60 Hz;
20 W, 110 to 250 Vdc
(+10,
-25%)
Option 2 ................................. 20 W, 48 Vdc
(+50,
-25%)
35 VA, 48 Vac
(+10, -45%) 50/60 Hz
Power-Up Time ......................... 250 ms at 120 Vac
AC Measurements ..................... Discrete Fourier
Transform. 16 samples
per cycle, 50 or 60 Hz
Resistor-Fault Circuit:
Neutral-To-Ground Voltage Trip Levels:
ER-600VC or ER-5KV ...... 20; 60; 100; 130; 170;
200; 340; 800; 1,200;
1,700; 2,000 Vac
ER-15KV
to
ER-35KV
...... 100; 300; 500; 650; 850;
1,000; 1,700; 4,000;
6,000; 8,500; 10,000 Vac
Accuracy ............................. 5% of setting
3 dB Frequency Response ..
S6 = 50 Hz ..................... 25-85 Hz
S6 = 60 Hz ..................... 30-90 Hz
NGR Calibration Range:
ER-600VC or ER-5KV ...... 0 to 2 k
ER-15KV to ER-35KV ...... 0 to 10 k
Trip
Resistance,
V
N
= 0:
ER-600VC
or
ER-5KV
......
500-
change ± 200
ER-15KV
to
ER-35KV
......
2.5-k
change ± 1 k
Neutral-To-Ground
DC-Voltage Rejection
:
ER-600VC or ER-5KV ...... 25 Vdc
ER-15KV to ER-35KV ...... 125 Vdc
Trip Time .................................. 12 ± 1 s
Trip Hold-Off Level ................. 5% of CT-Primary Rating
Operating
Mode
.......................
Latching/Non-Latching
Ground-Fault Circuit:
Trip Level ................................. 2, 4, 6, 8, 10, 15, 20,
40, 60, 80, 100% of
CT-Primary
Rating
Trip Time .................................. 0.1, 0.2, 0.3, 0.4, 0.5, 0.7,
1.0, 2.0, 3.0, 5.0, 10.0 s
Trip-Level
Accuracy
................
1% of CT-Primary Rating
Trip-Time Accuracy ................ 10% of Setting
3 dB Frequency Response .......
S6 = 50 Hz ........................... 25-85 Hz
S6 = 60 Hz ........................... 30-90 Hz
Maximum CT lead resistance:
EFCT & SE-CS30 .............. 5
Other CT’s ........................... Consult CT Curve.
CT-Input
Burden:
5-A Input ............................. < 0.01
1-A Input ............................. < 0.05
EFCT Input ......................... < 10
Thermal
Withstand:
1-A and 5-A Input:
Continuous ...................... 2 x CT Rating
1-Second.......................... 20 x CT Rating
EFCT
Input:
Continuous ...................... 10 x CT Rating
1-Second.......................... 25 x CT Rating
Measurement Range ................ 25 x CT-Primary Rating
Operating
Mode
.......................
Latching/Non-Latching
Pulsing Circuit:
Pulse Period .............................. 1.0 to 3.0 s,
0.2-s
increments
Duty
Cycle
...............................
50%
Time Accuracy ......................... 10% of Setting
Trip/Pulsing Relay K1 Contacts:
Configuration ........................... N.O. (Form A)
Operating
Mode
.......................
Fail-Safe or Non-Fail-Safe
CSA/UL Contact Ratings ........ 8 A resistive 250 Vac,
5 A resistive 30 Vdc
Supplemental Contact Ratings:
Make/Carry 0.2 s ................ 30 A
Break:
dc ...................................... 75 W resistive,
35 W inductive
(L/R = 0.04)
ac ...................................... 2,000 VA resistive,
1,500 VA inductive
(PF = 0.4)
Subject to maximums of 8 A and 250 V (ac or dc).
GF (K2) and RF (K3) Relay Contacts:
Configuration ........................... N.O. and N.C. (Form C)
Operating
Mode
.......................
Non-Fail-Safe
CSA/UL Contact Ratings ........ 8 A resistive 250 Vac,
8 A resistive 30 Vdc
Supplemental Contact Ratings:
Make/Carry 0.2s ................. 20 A
Break:
dc ...................................... 50 W resistive,
25 W inductive
(L/R = 0.04)
ac ...................................... 2,000 VA resistive,
1,500 VA inductive
(PF = 0.4)
Subject to maximums of 8 A and 250 V (ac or dc).
Unit Healthy Output K4 (Option 0):
Configuration ........................... N.O. (Form A)
Operating Mode ....................... Closed when Healthy
Ratings ...................................... 100 mA, 250 V (ac or dc)
Closed Resistance .................... 30 to 50
Unit Healthy Output K4 (Option 1):
Configuration ........................... N.C. (Form B)
Operating Mode ....................... Open when Healthy
Ratings ...................................... 100 mA, 250 V (ac or dc)
Closed Resistance .................... 25 to 50
