Power line connection
POWER LINE CONNECTION
T
ypes of
mai
ns
6.
245
DDS
HARDWARE
Ref.1310
IT type mains
Distribution diagram that has no point connected directly to ground. The
conductive parts of the installation are connected to ground.
In this type of mains, the differential breaker is used assuming that the ca-
pacitance of mains with respect to ground is large enough to ensure that
a minimum fault current flows with the same magnitude as that of the op-
erating differential current assigned. Otherwise, its use is not necessary.
F. H6/6
Installation diagram of an IT type mains.
L1
L2
L3
DDS
L1
L2
L3
DDS
FA
CT
O
RY LI
NE
TRANSFORM
ER
D
IFFERE
N
TIA
L
BR
EA
KE
R
MA
IN
S
FI
LT
ER
A
FACT
ORY L
INE
TR
A
N
SF
ORMER
DIFF
ERENTIAL
BREA
KE
R
MA
INS
FIL
TE
R
A
INFORMATION.
Note that an IT type mains can also be controlled
through an isolation watching device. Both protection measurements are
compatible with each other.
i
Содержание DDS
Страница 1: ...DRIVE DDS Hardware manual Ref 1310...
Страница 6: ...I 6 DDS HARDWARE Ref 1310...
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Страница 16: ...16 Ref 1310 DDS HARDWARE...
Страница 30: ...1 DESCRIPTION 30 Description DDS HARDWARE Ref 1310...
Страница 94: ...2 POWER SUPPLIES 94 Power supplies DDS HARDWARE Ref 1310...
Страница 188: ...3 DRIVE MODULES 188 Drive modules DDS HARDWARE Ref 1310...
Страница 204: ...4 AUXILIARY MODULES 204 Auxiliary modules DDS HARDWARE Ref 1310...
Страница 232: ...SELECTING CRITERIA 5 232 Selection criteria DDS HARDWARE Ref 1310...
Страница 266: ...7 CABLES 266 Cables DDS HARDWARE Ref 1310...
Страница 312: ...8 INSTALLATION 312 Installation DDS HARDWARE Ref 1310...
Страница 326: ...9 FUNCTIONAL SAFETY 326 Functional safety DDS HARDWARE Ref 1310...
Страница 354: ...10 CONNECTION DIAGRAMS 354 Connection diagrams DDS HARDWARE Ref 1310...
Страница 378: ...12 SALES REFERENCES 378 Sales references DDS HARDWARE Ref 1310...
Страница 384: ...13 COMPATIBILITY 384 Compatibility DDS HARDWARE Ref 1310...
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