Siemens 3WN6 Operating Instructions Manual page 14
Hand-held unit for overcurrent release, power unit adapter for hand-held unit, power unit 24 v dc for power unit adapter
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Also See for 3WN6:
- Operating instructions manual (32 pages) ,
- Manual (28 pages) ,
- Quick start manual (8 pages)
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value U
value f
1)
protec.
protec.
protec.
Ig
tg
g/N
protec. Ig
protec. tg
protec.g/N
= 300 A
= 400 ms
= 2
protec. Ig
protec. tg
protec.g/N
# 400 A
# 500 ms
# 1
protec. Ig
protec. tg
protec.g/N
? 400 A
? 500 ms
? 1
protec. Ig
protec. tg
protec.g/N
= 400 A
= 500 ms
= 1
Menu protec.
In this menu option, setting of the basic protection parameters
is carried out. The overcurrent release accepts valid values
only.
protec. I N :
overload protection for the neutral
conductor, 20 to 100 % of I n
protec. I r :
current setting for overload protection,
40 to 100 % of I n
protec. T c :
time-lag class for overload protection,
2 to 30 s or "off" (overload protection
disabled)
protec. I l :
operating value for instantaneous short-
circuit trip, 1.5 x I n to 50 / 65 kA
protec. I d :
operating value for short-time-delay short-
circuit trip, 200 A to 40 kA
protec. t d :
delay for short-time-delay short-circuit trip,
20 to 400 ms
protec. I g :
operating value for earth-fault trip,20 % of
I n to 1200 A
protec. t g :
delay for earth-fault trip, 100 to 500 ms
protec. g/N:
specification of type of earth-fault and
neutral conductor protection
protec. Inext:
rated current of external earth-fault iron-
cored transformer, 200 to 1600 A
14
value I
value P
protec.
protec.
protec.
protec.
Inext
IN
Ir
protec.Inext
protec. IN
protec. Ir
= 1000 A
= 500 A
= 1100 A
protec.Inext
protec. IN
protec. Ir
# 1200 A
# 600 A
# 1200 A
protec.Inext
protec. IN
protec. Ir
? 1200 A
? 600 A
? 1200 A
protec.Inext
protec. IN
protec. Ir
= 1200 A
= 600 A
= 1200 A
menu
relay
status
misc.
protec.
protec.
protec.
Tc
Ii
Id
protec. Tc
protec. Ii
protec. Id
= 6 s
= 22000 A
=10000 A
protec. Id
protec. Tc
protec. Ii
# 10 s
# 20000 A
# 8000 A
protec. Id
protec. Tc
protec. Ii
? 10 s
? 20000 A
? 8000 A
protec. Id
protec. Tc
protec. Ii
= 10 s
= 20000 A
= 8000 A
1) value of protec. „g/N"
Type
Neutral conductor
Earth fault protection
Protection is disabled
–
N
Neutral conductor protection with fourth transformer
Separate earth-fault iron-cored transformer
Earth-fault protection by summation
In the case of 3-pole switches, bridge the terminal X300.1 with
X300.2.
protec.
td
protec. td
= 200 ms
protec. td
# 150 ms
protec. td
? 150 ms
Measured values are examples
protec. td
= 150 ms
0
1
2
–
N
N
–
3
4
5
–
–
N
–
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