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

CNW 999

Compensating choke (7 or 14% detuning factor)

CNW 999

Unique Selling Point


  • Low inductance tolerance
  • Linear behaviour even with
    current higher than rated current
  • Connection on terminals or
    wire at option
  • Low noise

Description


Reactive Power and harmonics compensation equipment; Protection of capacitors 

  • Conforming to: DIN EN 61558-2-20
  • Test voltage: L-L 2100 V, DC 1 min L-PE 2700 V, DC 1 min
  • Overload: 1,5 x INenn 1 min / h
  • Climatic category: DIN IEC 60068-1
  • Thermal class: H
  • Protection degree: IP 00


Technical Data


  • Nominal Voltage : 400 V
  • Rated current : 9,1 - 80 A
  • Inductance : 0,78 - 14,5 mH

 

Circuit example

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

CNW 999

Compensating choke (7 or 14% detuning factor)

 

Technical data

Type: 
Detuning
factor 7%

Reactive power
of capacitors
[kVAr]

Resonance
frequency
[Hz]

Detuning
factor (p)
[ % ]

Rated
current
[A]

Current @
50Hz
[A]

Inductance
per branch
[mH]

Copper 

[kg]

Weight

[kg]

CNW 999/10/6

6,25

189

7

10,6

10,0

6,0

3

8

CNW 999/19/3

12,5

189

7

20,5

19,0

3,0

4

9

CNW 999/38/1,53

25

189

7

41,0

38,0

1,53

1*

17

CNW 999/75/0,78

50

189

7

80,0

75,0

0,78

1*

28

 

Type:
Detuning 
factor 14%

Reactive power 
of capacitors
[kVAr]

Resonance 
frequency
[Hz]

Detuning 
factor (p)
[ % ]

Nenn-
strom
[A]

Current @ 
50Hz
[A]

Inductance
per branch
[mH]

Copper 

[kg]

Weight

[kg]

CNW 999/9/14,5

6,25

134

14

9,1

9,0

14,5

5

9

CNW 999/19/6,9

12,5

134

14

19,1

19,0

6,9

5

15

CNW 999/38/3,5

25

134

14

38,2

38,0

3,5

1*

24

CNW 999/76/1,73

50

134

14

76,5

76,0

1,73

1*

43

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

CNW 999

Compensating choke (7 or 14% detuning factor)

 

Dimension drawings

 

Dimensions

(Detuning factor 7%)

Image

Length 
(L) [mm]

Width 
(B) [mm]

Height 
(H) [mm]

Fixing 
(N1) [mm]

Fixing 
(N2) [mm]

∅ (D1)
[mm] 

∅ (D2)
[mm]

Space 
(A1) [mm]

Weight
[kg]

CNW 999/10/6

1

190

101

155

170

69

8x12

-

30

8

CNW 999/19/3

1

190

111

155

170

79

8x12

-

30

9

CNW 999/38/1,53

2

240

150

205

185

97

10x18

9

55

17

CNW 999/75/0,78

2

265

172

225

200

122

10x18

9

55

28

 

(Detuning factor 14%)

Image

Length 
(L) [mm]

Width 
(B) [mm]

Height 
(H) [mm]

Fixing 
(N1) [mm]

Fixing 
(N2) [mm]

∅ (D1)
[mm] 

∅ (D2)
[mm]

Space 
(A1) [mm]

Weight
[kg]

CNW 999/9/14,5

1

190

97

157

170

69

8x12

-

30

9

CNW 999/19/6,9

1

240

111

209

185

88

10x18

-

45

15

CNW 999/38/3,5

2

265

265

225

200

104

10x18

9

55

24

CNW 999/76/1,73

2

300

197

255

224

144

10x18

9

65

43

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

CNW 999

Compensating choke (7 or 14% detuning factor)

 

Compensating chokes CNW 999

Today, more and more loads and consumers which create harmonics are being operated in our networks. These are for instance speedcontrolled drives, rectifiers, thyristor controls and fluorescent lamps. This causes the increase of harmonics load and harmoinic distortion factor of the network. This means, the reactive power on transmission and distribution installations and the transmission losses increase which results in higher energy costs.

The capacitors required for the compensation in proximity to the consumer, in conjunction with the supplying transformer and the line inductances produce a resonant circuit, which may go in undefined resonance due to the harmonics and thus may even intensify the harmonics.

The use of compensating reactors prevent this physical effect. The reactors with the capacitors are tuned to a defined serial resonant frequency taking into consideration an audio frequency ripple control operation.