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NTT LD-DH 100

Directly cooled surge current choke

NTT LD-DH 100

Unique Selling Point


  • Less copper
  • Small dimensions compared to traditional cooling methods 
  • Lower weight
  • Cooling with water/glycol
  • High protection class
  • Suitable for high pulse current

Description


The current limiting inductor limits the short-circuit current in a bridge circuit. Thus, the intermediate circuit is protected and prevents the destruction of the connected semiconductor devices. Usually IGBT‘s.

  • According to: EN 60076-6
  • Test voltage: 12kV
  • Overload: 1,5 x INenn 1 min / h
  • Climatic categorie: DIN IEC 68 Teil 1 25/085/21

 

Typical applications

  • Drive technology
  • Wind energy
  • Train technology


Technical Data


  • Nominal Voltage : 3000 V
  • Rated current : 500 - 2500 A

Circuit example

Your contact: +49 - 212 8804-0 • info@reo.de

NTT LD-DH 100

Directly cooled surge current choke

Technical data

Type

Rated voltage
[V]

Rated current
[A]

Inductance
[µH]

DC resistance
[mΩ]

NTT LD DH 100/500

3000

500

9,0

0,84

NTT LD DH 100/1000

3000

1000

4,5

0,48

NTT LD DH 100/2000

3000

2000

2,25

0,19

NTT LD DH 100/1500

3000

1500

4,5

0,31

NTT LD DH 100/2250

3000

2250

5,0

0,30

NTT LD DH 100/2500

3000

2500

1,8

0,11

 

Dimension drawings

 Dimensions

Type

A
[mm]

B1
[mm]

B2
[mm]

C
[mm]

Weight
[kg]

NTT LD DH 100-500

260

230

170

200

9

NTT LD DH 100-1000

260

230

170

175

7

NTT LD DH 100-2000

260

230

170

175

7

NTT LD DH 100-1500

318

268

210

178

15

NTT LD DH 100-2250

318

268

210

250

23

NTT LD DH 100-2500

318

268

210

178

15