Littelfuse Startco SE-330HV, Руководство пользователя

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SE-330HV Neutral-Grounding-Resistor Monitor
Rev. 5-M-101817
Additional features include LED trip indication, trip
memory, front-panel and remote reset, 4-20-mA analog
output, trip event recorder, USB local communications,
microSD™ data logging, and optional network
communications.
The SE-330HV provides the following additional
features:
•
When the trip level is set to MEM, the ground-fault
trip setting is defined by an internal non-volatile
memory variable. Range is 2 to 100% in 1%
increments of the CT-primary rating.
•
Indication relays can be set to fail-safe or non-fail-
safe.
•
The number of trip records has been increased to
100 and includes date and time stamping.
•
A microSD™ card interface can be used for long-
term data logging and firmware updates. A
microSD™ card and a microSD-to-SD adapter is
included. See Section 4.1.
•
For ease of connection to new devices, the RS-232
interface has been replaced by a Mini B USB port.
•
Dual Ethernet ports are available with support for
fiber-optic and RJ45 interfaces.
•
The IEC 61850 protocol has been added.
TABLE 1. T
YPICAL
V
ALUES FOR
T
RIPPING
S
YSTEMS
SYSTEM
VOLTAGE
(LINE-LINE)
NEUTRAL-GROUNDING
RESISTOR
SENSING
RESISTOR
GROUND-
FAULT
TRIP LEVEL
V
N
TRIP
LEVEL
(VOLTS)
CURRENT
(AMPERES)
RESISTANCE
(OHMS)
MODEL RESISTANCE
(SWITCH S5
SETTING)
(AMPERES) (VOLTS)
7,200
14,400
7,200
14,400
25,000
35,000
72,000
15
15
25
25
25
25
100
277
554
166
332
577
808
420
ER-15KV
ER-15KV
ER-15KV
ER-15KV
ER-25KV
ER-35KV
ER-72KV 100 k
W
100 k
W
100 k
W
100 k
W
100 k
W
100 k
W
200 k
W
3.0
3.0
5.0
5.0
5.0
5.0
20.0
850
1,700
850
1,700
4,000
6,000
6,000 x 2 = 12,000
TABLE 2. G
ROUND-
F
AULT
T
RIP
L
EVELS FOR
S
ELECTED
CT’
S
GF TRIP
LEVEL
(1)
(%)
EFCT-X
5:0.05
(AMPERES)
SE-CS30-X
30:0.05
(AMPERES)
50:1
50:5
(AMPERES)
100:1
100:5
(AMPERES)
200:1
200:5
(AMPERES)
400:1
400:5
(AMPERES)
2
4
6
8
10
20
40
60
80
100
0.10
0.20
0.30
0.40
0.50
1.00
2.00
3.00
4.00
5.00 0.60
1.20
1.80
2.40
3.00
6.00
12.0
18.0
24.0
30.0
*
*
*
*
5
10
20
30
40
50
*
*
*
8
10
20
40
60
80
100
*
*
12
16
20
40
80
120
160
200
*
16
24
36
40
80
160
240
320
400
(1)
When set to MEM, range is 2 to 100% in 1% increments.
* Setting not recommended.