Littelfuse Startco SE-330HV, Руководство пользователя

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Page 27
SE-330HV Neutral-Grounding-Resistor Monitor
Rev. 5-M-101817
6. T
ECHNICAL
S
PECIFICATIONS
6.1 SE-330HV
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 ......................... 3 s 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
(1)
:
ER-15KV to ER-35KV ...... 100; 300; 500; 650; 850; 1,000;
1,700; 4,000; 6,000; 8,500; 10,000
Vac
ER-1000HV, ER-72KV ..... 200; 600; 1,000; 1,300; 1,700;
2,000; 3,400; 8,000; 12,000;
17,000;
20,000 Vac
Accuracy ............................. 10% of setting
3 dB Frequency Response:
S6 = 50 Hz ....................... 25 to 85 Hz
S6 = 60 Hz ....................... 30 to 90 Hz
NGR Calibration Range:
ER-15KV to ER-35KV ...... 0 to 10 k
W
ER-1000HV, ER-72KV ..... 0 to 20 k
W
Trip Resistance, V
N
= 0:
ER-15KV to ER-35KV:
Range
(5)
............................ 1.25 to 3.75-k
W
change
± 1 k
W
Default ............................. ± 2.5-k
W
change
ER-1000HV, ER-72KV:
Range
(5)
............................ 2.5 to 7.5-k
W
change
± 2 k
W
Default ............................. ± 5-k
W
change
DC-Voltage Rejection:
ER-15KV to ER-35KV ...... 125 Vdc
ER-1000HV, ER-72KV ..... 250 Vdc
Trip Time ............................... 12 to 60 s ± 1 s
Trip Hold-Off Level .............. 5% of CT-Primary Rating
Trip Mode .............................. Latching/Non-Latching
Ground-Fault Circuit:
Trip Level .............................. 2, 4, 6, 8, 10, 20, 40, 60, 80, 100%
of CT-Primary Rating or 2 to
100% using MEM parameter
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 ............. Maximum of 1% of CT-Primary
Rating or 3% of Setting
(2)
Trip-Time Accuracy .............. 10% of Setting, 20 ms minimum
3 dB Frequency Response:
S6 = 50 Hz .......................... 25 to 85 Hz
S6 = 60 Hz .......................... 30 to 90 Hz
Maximum CT Lead Resistance:
EFCT & SE-CS30 ................. 5
W
Other CT’s ............................. Consult CT Curve
CT-Input Burden:
5-A Input ............................ < 0.01
W
1-A Input ............................ < 0.05
W
EFCT Input ......................... < 10
W
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
Trip Mode .............................. Latching/Non-Latching
Trip 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 s)
ac ...................................... 2,000 VA resistive,
1,500 VA inductive
(PF = 0.4)
Subject to maximums of 8 A at 250 Vac, 5 A resistive at 30
Vdc, and 0.4 A resistive at 250 Vdc.
GF (K2) and RF (K3) Relay Contacts:
Configuration ........................ N.O. and N.C. (Form C)
Operating Mode
(5)
.................. Non-Fail-Safe or 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 s)
ac ...................................... 2,000 VA resistive,
1,500 VA inductive
(PF = 0.4)