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Line reactors

Line reactors

Function
ED3N line reactors increase the impedance at the connection point of the frequency converter, which results in a lower THDi value of the current drawn from the supply network. Limiting harmonic currents reduces the RMS value of the input current and decreases the load on the power supply network. These reactors effectively reduce phenomena related to transient states by limiting the amplitude and rise rate of current pulses, which protects sensitive components of power electronic systems and improves the operational stability of the converter.
Reactors with 4% reactance are particularly used in drives that do not have built-in DC chokes, providing basic protection of the system against excessive currents and distortions.
 
Benefits
  • Limitation of inrush and short-circuit currents
  • Reduction of current rise rate (di/dt)
  • Reduction of harmonics generated by the converter into the supply network
  • Extended service life of rectifiers and semiconductor components
  • More stable and safer operation of drive systems
  • Improved power quality and reduced load on the supply network
Applications
  • Drive systems with frequency converters
  • Networks with high short-circuit power
  • Frequency converters without built-in DC chokes
  • Industrial installations requiring stabilization of current parameters

Custom Design

Manufacturing a transformer with parameters other than those specified in the catalogue is possible upon prior consultation.

Typical application diagram

Product code

Download catalogue cards

3-phase up to 1250 A 
Download catalog card in PDF

Product for:

Details:

Design Chokes are produced according
to : EN/IEC 61558-2-20;
EN/IEC 60076-6
Insulation class

F(155oC) - standard
Climatic class
/environmental class

C1/E0 - land design; C2/E1 - maritime design
Ambient temperature 40oC
Protection degree IP 00
Harmonic number 1 3 5 7 11 13
Harmonic content (%) - I1h 100 0 20 14 0 0
Phase shift 0 0 0 0 0 0
Frequency of 1-st harmonic 50 Hz
Rated voltage Un=400 V
Overload capacity 110%In
Voltage drop 4%Un
Terminals screw terminal blocks or cable lugs or copper bus bars
Fastening by means of angles

 

Technical sketch

Design A Design B
Design A Design B
Design C Design D
Design C Design D

 

Dimension table

Technical data of three-phase line chokes - 4%

Item Chke type Inductance
[mH]		 Current
[A]		 L
[mm]		 B
[mm]		 H
[mm]		 d
[mm]		 e
[mm]		 f
[mm]		 Weigh
[kg]		 Design
1 ED3N - 9,80/3 9,80 3 100 52 122 80 31 5 x 8 0,92 A
2 ED3N - 7,30/4 7,30 4 100 60 122 80 40 5 x 8 1,3 A
3 ED3N - 4,90/6 4,90 6 100 60 122 80 40 5 x 8 1,4 A
4 ED3N - 3,60/8 3,60 8 125 61 141 100 45 5 x 8 1,8 A
5 ED3N - 2,40/12 2,40 12 125 71 141 100 55 5 x 8 2,4 A
6 ED3N - 1,80/16 1,80 16 155 77 160 130 57 8 x 11 3,4 A
7 ED3N - 1,20/25 1,20 25 155 121 130 130 72 8 x 11 5,4 B
8 ED3N - 0,98/30 0,98 30 195 110 160 173 72 8 x 11 5,9 B
9 ED3N - 0,82/36 0,82 36 195 120 160 173 82 8 x 11 7,5 B
10 ED3N - 0,59/50 0,59 50 195 134 160 173 92 8 x 11 9,3 B
11 ED3N - 0,49/60 0,49 60 195 134 180 173 78 8 x 11 10,4 B
12 ED3N - 0,42/70 0,42 70 240 157 210 198 95 11 x 29 11,8 B
13 ED3N - 0,33/90 0,33 90 240 160 210 198 95 11 x 29 12,8 B
14 ED3N - 0,27/110 0,27 110 240 146 210 198 105 11 x 29 16,2 C
15 ED3N - 0,24/120 0,24 120 240 152 210 198 115 11 x 29 19,5 C
16 ED3N - 0,20/150 0,20 150 300 161 265 240 122 11 x 15 25 C
17 ED3N - 0,16/180 0,16 180 260 180 225 198 126 11 x 29 29 C
18 ED3N - 0,13/220 0,13 220 300 196 265 240 147 11 x 15 36,5 C
19 ED3N - 0,11/260 0,11 260 300 211 265 240 162 11 x 15 43,5 C
20 ED3N - 0,092/320 0,092 320 357 203 310 300 148 11 x 21 53 C
21 ED3N - 0,074/400 0,074 400 420 205 415 370 141 11 x 15 57 D
22 ED3N - 0,059/500 0,059 500 420 215 415 370 151 11 x 15 66 D
23 ED3N - 0,047/630 0,047 630 420 272 415 370 181 11 x 15 94 D
24 ED3N - 0,042/700 0,042 700 480 280 475 430 191 13 x 18 104 D
25 ED3N - 0,037/800 0,037 800 480 263 475 430 208 13 x 18 122 D
26 ED3N - 0,033/900 0,033 900 480 288 490 430 208 13 x 18 128 D
27 ED3N - 0,029/1000 0,029 1000 480 318 490 430 238 13 x 18 155 D
28 ED3N - 0,027/1100 0,027 1100 540 338 535 490 258 13 x 18 176 D
29 ED3N - 0,024/1250 0,024 1250 540 350 535 490 268 13 x 18 196 D

Note:

Manufacturer reserves the right to make changes resulting from the continuous development of products offered.

If requested in advance, it is possible to manufacture a choke in other version.

For designs with climatic/environmental class C2/E1 the letter "M" ought to be added

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