Commander SE Advanced User Guide
137
Issue Number: 4
6 Input line reactors
Line reactors can be used to reduce supply harmonics and also should be used if any of the following conditions apply:
•
Supply capacity exceeds 200kVA
•
Fault current exceeds 5kA
•
Power-factor correction equipment is connected close to the drives
•
Large DC drives having no or ineffective line reactors connected to the supply
•
Direct on-line started motor(s) are connected to the supply and, when any of these motors are started, a dip is produced
in excess of 20% of the actual supply voltage
During any of the above conditions, excessive peak current may flow in the input bridge. This may cause nuisance drive
tripping or, in extreme cases, failure of the input bridge.
A line reactor should then be connected in each phase of the supply to the input bridge. Line reactor(s) add the required
impedance to the AC supply in order to reduce current transients to a level that can be tolerated by the input bridge. An
impedance value of 2% is usually recommended.
Three individual reactors, or a single three-phase reactor should be used. Each network of drives must have its own
reactor(s).
RFI filters (for EMC purposes) do not give adequate protection against these conditions.
The following line reactors are available through Control Techniques:
Commander SE sizes 3, 4 and 5 drives include DC chokes, AC reactors are only required for harmonic reduction.
*These input line reactors are not stocked by Control Techniques. Therefore they should be ordered directly from
the manufacturer, Skot Transformers, or sourced locally.
sales @skot.co.uk
They can be ordered using the above part numbers or Skot reference numbers:
Line reactors also improve the input current waveform and reduce the input current harmonic levels. Further information is
included in the EMC Data Sheets.
Input line reactors for Harmonics standards EN61000-3-2 & IEC61000-3-2
The following input line reactors allow the Commander SE 0.25 - 0.55kW drives to conform to harmonic standards EN61000-
3-2 and IEC61000-3-2
EN61000-3-2 and IEC61000-3-2 applies to equipment with a supply voltage of 230VAC and a line current up to 16A, single or
three phase. Professional equipment with rated input power exceeding 1kW has no limits - this applies to the 0.75kW drive.
Further information on EN61000-3-2 and IEC61000-3-2 is included on the EMC data sheets available from your local Control
Techniques Drive Centre or distributor.
CAUTION
Part Number Phases Inductance
Continuous
rms current
Peak
current
Weight
Drive used on
A
A
kg
lb
4402-0224
1
2.25
6.5
13
0.8
1.8
11200025, 11200037
4402-0225
1
1.0
15.1
30.2
1.1
2.4
11200055, 11200075, 2D200075,
2D200110
4402-0226
1
0.5
26.2
52.4
1.5
3.3
2D200150, 2D200220
4402-0227
3
2.0
7.9
15.8
3.5
7.7
23400075, 23400110, 23400150
4402-0228
3
1.0
15.4
47.4
3.8
8.4
2D200075, 2D200110, 2D200150,
23400220, 23400300, 23400400,
33400550, 33400750
4402-0229
3
0.4
24.6
49.2
3.8
8.4
23200400, 2D200220, 33200550,
33200750
4402-0232
3
0.6
27.4
54.8
6
13
43401100, 43401500
*4400-0240
3
0.45
46
92
7
15.5
43401850, 53402200
*4400-0241
3
0.3
74
148
10
22
53403000, 53403700
CT Part Number
Skot reference number
4400-0240
35232
4400-0241
35233
Drive
Reactor part
number
Drive power
de-rating
Input power Inductance Continuous
rms current
W
mH
SE12200025
4400-0239
None
374
4.5
2.4
SE12200037
4400-0238
None
553
9.75
3.2
SE12200055
4400-0237
18%
715
16.25
4.5
NOTE
NOTE
Содержание COMMANDER SE
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Страница 142: ...142 Commander SE Advanced User Guide Issue Number 4 Figure 6 9 Input line reactor 4400 0241 All dimensions in mm...
Страница 144: ...144 Commander SE Advanced User Guide Issue Number 4 Figure 7 3 Commander SE Size 4 All dimensions in mm...