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CNW MD 953

Water-cooled three-phase mains choke 8% Uk

CNW MD 953

Unique Selling Point


  • Suitable for regenerative converters
  • Up to 80% power dissipation at water cooling
  • Reducing of the surface temperature to below 80 ° C
  • Compact design
  • Extended life-time of electrical consumers
  • Attenuation of current spikes of up to 60%
  • Reduction of the input current
  • Production possible according to UL insulation system E251513
  • Protection against dust and moisture
  • Protection up to IP 65
  • Excellent heat distribution

Description


Power Noise Reduction - save energy costs.  The water-cooled power / filter choke CNW MD 953 series has been specially developed for smoothing flows in regenerative converters. By efficiently cooling, the power losses are dissipated up to 80% by cooling and reduces heating of switching cabinets. The CNW MD 953 is also suitable for use as a filter choke in LCL filters.

By using a mains choke the inverter electronics and DC-capacitors will be protected.

Starting currents and current peaks are reduced up to 60%. Mains chokes help to comply with international power quality standards IEEE 519 or EN 61000-3-2.

  • Rated voltage: U ≤ 3 x 500 V
  • Short circuit: Uk 8% (400VAC/50Hz, Irated)
  • Frequency: 50/60 Hz
  • According to: EN 60289 / EN 61558
  • Test voltage: L-L 2,500 V, 50Hz 60s; L-PE 2,500 V, 50Hz 60s
  • Insulation class: T50/F
  • Protection rating: IP00
  • Climatic category: DIN IEC 60068-1
  • Overload: 1.5 x Irated 1 min / h
  • Cooling: Water/Glycol (70/30%)
  • Max. increased coolant inlet temperature: 50° C
  • Flow rate: min. 3.6 l/min.
  • Pressure drop: <0.5 bar

Typical applications

  • Drive systems for motor drives:
    • Mechanical engineering
    • Conveyor technology
    • Automation technology
  • Wind turbines
  • Solar systems


Technical Data


  • Nominal Voltage : 400 V
  • Rated current : 200 - 1200 A
  • Inductance : 0.012 - 0.074 mH

Circuit example

Your contact: +1 (317) 899-1395 • info@reo-usa.com

CNW MD 953

Water-cooled three-phase mains choke 8% Uk

 

Technical data

Type

Rated voltage
[V]

Rated current
[A]

Uk

Linear
up to

Inductance
[µH]

R20
[mΩ]

Winding weight
[kg]

CNW MD 953/200

3 x 400
(optional 3x690)

200

8%

300

294

2.1

7

CNW MD 953/400

400

600

147

0.96

11

CNW MD 953/600

600

900

98

0.49

15

CNW MD 953/800

800

1,200

74

0.4

19

CNW MD 953/1,000

1,000

1,500

59

0.3

18

CNW MD 953/1,200

1,200

1,800

49

0.18

32

Higher power ratings on request

 

For Europe

For USA

Frequency: 50 Hz

Frequency: 60 Hz

Short circuit voltage Uk: 4% (by 400V)

Short circuit voltage Uk: 9.6% (by 200V)

Voltage drop: 9.23 V/branch

Voltage drop: 11.05 V/branch

Your contact: +1 (317) 899-1395 • info@reo-usa.com

CNW MD 953

Water-cooled three-phase mains choke 8% Uk

 

Dimension drawings

 

Dimensions

Type

A
[mm]

B
[mm]

C
[mm]

Weight
[kg]

Braced

CNW MD 953/200

380

320

250

70

CNW MD 953/400

390

380

260

95

CNW MD 953/600

420

505

325

140

CNW MD 953/800

530

550

295

175

CNW MD 953/1,000

510

590

335

225

CNW MD 953/1,200

530

675

335

260

Unbraced

CNW MD 953/200

380

312

250

68

CNW MD 953/400

390

372

260

93

CNW MD 953/600

420

478

325

133

CNW MD 953/800

530

523

295

168

CNW MD 953/1,000

510

563

335

218

CNW MD 953/1,200

530

646

335

253