OPM_STS_400_25A_100_1GB_V011
34
GE DE STS: installation and operating manual 1.1 (GB)
Digital Energy
™
Static Transfer Switch
g
NOTE
DIP switches numbering order is from left to right side as in figure 11 !
Designation
Designation
on the
enclosure
Function
1 2 3 4
Value
OFF OFF OFF X
- Transfer
without
overcurrent
control
ON OFF OFF X 3I
n
ON ON OFF X 4.5I
n
OFF ON OFF X 6I
n
OFF ON ON X 7.5I
n
SW6
Overcurrent
level
OFF OFF ON X 9I
n
If instantaneous
current is larger
than set level,
transfer is not
performed.
OFF OFF X
X 25
s
OFF ON X
X 1
s
ON OFF X X 8
s
Retransferring
delay
ON ON X X 0.8
s
X X OFF
OFF
50 ms
X X OFF
ON
17 ms
X X ON
OFF
25
ms
SW7
Switching delay
with
unsynchronized
sources
X X ON
ON
13 ms
Delay between
switching off and
switching on
OFF
X X X
Only possible setting for
STS-400-XX-4. Other setting
may cause wrong operation of
the device.
SW8
Sequence of
the thyristors
firing
ON
X X X
Only possible setting for
STS-400-XX-3. Other setting
may cause wrong operation of
the device.
X – either OFF or ON freely (it is not important for this function)
ON
1
2
3
4
