Classification - ABB DCS 600 Manual

Classification

Medium-voltage line
Converter
transformer
with earthed
screen and
earthed
Insulated industrial
iron core
low voltage line for up
to 1000V with earth
conductor
Mounting
plate
Line choke
Converter
0 0
Operation with separate converter
transformer. If there are other loads at the
same secondary winding they have to
withstand the commutation notches,
caused by the converter. In some cases
commutation chokes are necessary (see
1.4).
Trp‚qÃr‰v…‚€r‡
(1 
Fig. 2.6/5: Classification
Supply transformer of
an industry region
(rated power normally
≤ 1.2 MVA)
Earthed
star point
Earthed public 400V
line with neutral
conductor
Mounting
plate
Line filter
Line choke
Converter
0 0
Operation at the public low
voltage line together with other
loads of all kinds except some
kinds of sensitive communication
means.
Dqˆ†‡…vhyÃr‰v…‚€r‡
(1 
UurÃsvryqƈƒƒy’Ãv†Ã‚‡Ã†u‚ÃvÃ‡uv†Ã†’‚ƒ†v†Ãq…hvtÃUurÃ…ˆyr†Ãs‚…Ã
‡urÃsvryqƈƒƒy’Ãphiyr†Ãh…rÇurÆh€rÃh†Ãs‚…ÇurÃh…€h‡ˆ…rƈƒƒy’Ãphiyr†
Figures e.g.
see 3.1 or explanation available
in chapter 3, paragraph 1
screened cable, see 2.4.2
unscreened cable with limitation,
see 2.5
/HJHQG
Medium-voltage line
Supply transformer of a
residental region with light
industry (rated power
normally ≤ 1.2 MVA)
Earthed
star point
Earthed public 400V
line with neutral
conductor
Line filter
Line choke
Converter
Mounting
plate
0
A separation transformer
Operation at the
with grounded screen and
public low voltage line
together with other with grounded iron core
makes the line filter and the
loads of all kinds
line choke unnecessary.
Av…†‡Ãr‰v…‚€r‡Ãv‡uÃ…r†‡…vp‡v‚
(domestic and light industry)
(1 
Converter
0
To other loads which
must be protected
against line pollution
caused by converters
(HF disturbance and
commutation notches).
II F 2-21