2 Engineering
2.2 Electrical power network
DE1 variable speed starter
09/14 MN040011EN
www.eaton.com
23
2.2 Electrical power network
2.2.1 Mains connection and configuration
DE1 variable speed starters can be connected to and run on all neutral point-
grounded AC supply systems (TN-S, TN-C, TT grounding systems; please
refer to IEC 60364) without any limitations.
figure 15: AC supply systems with earthed center point
The connection and operation of variable speed starters to asymmetrically
grounded TN networks (phase-grounded Delta network "Grounded Delta",
USA) or non-grounded or high-resistance grounded (higher than 30
Ω
)
IT networks is only conditionally permissible.
If DE1 variable speed starters with an internal radio interference suppression
filter (DE1-…FN-…) are connected to a corner-earthed network or an IT
network (non-earthed, insulated), the filter must be deactivated (by removing
the two EMC jumpers).
TN-S
TN-C
TT
→
While planning the project, consider a symmetrical distribution
to the three main phase conductors, if multiple variable speed
starters with single-phase supplies are to be connected. The
total current of all single phase consumers is not to cause an
overload of the neutral conductor (N-conductor).
→
Operation on non-earthed networks (IT) requires the use of
suitable insulation monitors (e.g. pulse-code measurement
method)
→
In networks with an earthed phase conductor, the maximum
phase-earth voltage must not exceed 300 VAC.
→
For detailed information on how to remove the EMC jumpers,
please refer to
Section 3.3.4, “EMC jumper”, page 44.
L2
N
L1
L3
PE
L2
PEN
L1
L3
L2
N
L1
L3
Содержание PowerXL DE1 series
Страница 4: ...II ...
Страница 36: ...2 Engineering 2 5 Motor Selection 32 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 68: ...3 Installation 3 6 Block diagrams 64 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 132: ...7 Modbus RTU 7 4 Operating mode Modbus RTU 128 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 146: ...8 Technical Data 8 4 Dimensions 142 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 172: ...10 Fault messages 10 3 Fault list 168 DE1 variable speed starter 09 14 MN040011EN www eaton com ...
Страница 186: ...182 DE1 variable speed starter 09 14 MN040011EN www eaton com ...