Switch Disconnector_NAL/NALF Switch Disconnector_Wuxi Lanhong Electric Co., Ltd.
 
 
 
 
86-510-83726583
86-510-83720170
E-mail: lanhong@lhdz.com
 
 
 
 
NAL/NALF(12KV,17.5~24KV,40.5KV ) switch disconnector(licensed by ABB, manufactured by Wuxi Lanhong Electric Co., Ltd.
NAL switch disconnector (comply with IEC 60265-1:1997 GB3804-1990)
NALF fuse switch disconnector-fuse composite apparatus (comply with IEC60420:1990 GB16926-1997)
Both NAL switch disconnector and NALF fuse switch disconnector-fuse composite apparatus which combine air-compression type and air-generation type to extinguish arc are designed by ABB with 50 years’ experience.
So far, more than 550,000 units installed worldwide are in use.
By combining NAL switch disconnector with fuse, the fuse switch disconnector possesses both advantages. NAL switch disconnector disconnects any load currents until its rated breaking current, the fuse and its striker break any over-load current until any fuse switch disconnector’s rated short-circuit breaking current. NAL switch disconnector and NALF fuse switch disconnector are largely used as transformer switch in distribution networks, motor switch or capacitor switch.

NAL12 / NALF12
NAL24 / NALF24
NAL36 / NALF36

NAL12

NAL12

NAL24

NAL36

NALF12

NALF12

NALF24

NALF36
  Experiment report

NAL12

NALF12

NAL36

NALF36

NAL24

Technical Authorization
of ABB
   
 

NAL/NALF Technical Data

Rated voltage

KV

12(IEC)

12(GB)

24(GB)

40.5(GB)

Rated frequency

Hz

50/60

50

50

50

Rated impulse withstand voltage

Between phases and to earth

KV

75

75

125

170

Between breaks

KV

85

85

145

195

Rated power frequency withstand voltage 50Hz,1min

Between phases and to earth

KV

42

42

65

95

Between breaks

KV

42

48

79

110

Rated short circuit making current(peak)

KA

67

50

50

50

Rated peak withstand current

KA

82

50

50

50

Short time withstand current

KA

25/2s

20/4s

 

20/2s

20/2s

31.5/2s

 

Rated active load switch breaking current

A

630

630

1250

630

630

Rated closed-loop breaking current

A

630

630

1250

630

630

Rated cable charging breaking current

A

10

10

16

21

Main circuit resistance

μ Ω

≤105

≤105

≤105

≤105

Phase distance (center distance)

mm

150/170/210

210

170/210

275

360

Rated current of fuse switch disconnector

A

100

100

100

100

Maximum fuse current of the fuse switch disconnector

A

125

125

125

50

Main circuit resistance the fuse switch disconnector

μ Ω

≤250

≤250

≤250

≤250

Rated short circuit breaking current of fuse switch disconnector

KA

31.5

31.5

31.5

31.5

Rated short circuit making current of fuse switch disconnector (peak)

A

80

80

80

80

Rated transfer current of fuse switch disconnector

A

1200

1200

800

200

Maximum operating torque

Switch disconnector, with K type single spring operating mechanism

close

Nm

≤120

≤120

≤120

≤120

open

Nm

≤120

≤120

≤120

≤120

Fuse switch disconnector, with A type double springs operating and energy-stored mechanism

Energy-stored and close

Nm

≤120

≤120

≤120

≤120

open

Nm

≤3

≤3

≤3

≤3

Shaft corner

degree

120

120

120

120

Close speed

m/s

≥6

≥6

≥6

≥6

Open speed

m/s

4.5~6

4.5~6

4.5~6

4.5~6

Three phase close synchronism

m/s

≤3

≤3

≤3

≤3

Mechanical life

time

≥2000

≥2000

≥2000

≥2000

Remark:(1) NALF36 can only equipped with A type double springs operating and energy-stored mechanism. (2) According to the actual requirements, different operation modes like manual, manual with shunt tripping, electrical and electrical shunt tripping are available.

 

E Type Switch Disconnector with Earthing Switch

Rated voltage

KV

12(IEC)

12(GB)

24(GB)

40.5(GB)

Rated short circuit making current(peak)

KA

40

40

40

40

Rated peak withstand current

KA

40

40

40

40

2S short time withstand current

KA

16

16

16

16

Rated active load switch breaking current

A

630

630

1250

630

630

Rated closed-loop breaking current

A

630

630

1250

630

630

Rated cable charging breaking current

A

10

10

16

21

Main circuit resistance

μΩ

≤105

≤105

≤105

≤105

Phase distance (center distance)

mm

150/170/210

210

170/210

275

360

Rated current of fuse switch disconnector

A

100

100

100

100

Maximum fuse current of the fuse switch disconnector

A

125

125

125

50

Main circuit resistance the fuse switch disconnector

μΩ

≤250

≤250

≤250

≤250

Rated short circuit breaking current of fuse switch disconnector

KA

31.5

31.5

31.5

31.5

Rated short circuit making current of fuse switch disconnector (peak)

A

80

80

80

80

Rated transfer current of fuse switch disconnector

A

1200

1200

800

200

Closing operating torque

Nm

≤120

≤120

≤120

­≤120

Opening operating torque

Nm

≤120

≤120

≤120

≤120

Mechanical life

time

≥2000

≥2000

≥2000

≥2000

Phase distance (center distance)

mm

150/170/210

210

170/210

275

360

 
 
  Copyright www.lhdz.com Wuxi Lanhong Electric Co., Ltd.