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KD-P: Transformer protection module with SF6 load break switch and fuses

Application:

Commutation of electrical circuits under normal and emergency conditions, with earthing the dead areas by earthing switch. Protection of transformer and medium voltage equipment.   

Standard equipment:

 three-phase load break switch RV44, class 徘 according to IEC 60265.1, SF6 insulation
 2 interlocked earthing switches
 fuse holders
 three-phase fuses
 block contacts on load break switch
 door interlock
 220 V shunt trip
 panel for capacitive voltage detectors

Options:

 push buttons for load break switch
 cable support
 door interlock
 low voltage compartment
 load break switch opening mechanism through impulse rod  
 block contacts on earthing switch
 load break switch turnkey lock
 key interlock on load break switch
 key interlock on earthing switch
 key interlock on both switches
 low voltage release
 automatic closing
 no door interlock
 motor operation: 24-48-110 V AC/DC, 220 V AC
 spare fuses
 automatic recloser
 capacitive voltage detectors
 floor pans
 socle 200 mm, 300 mm or 400 mm (other dimensions on request)
 start button for load break switch
 remote control for load break switch

Specifications:

 

Rated voltage

kV

12

17.5

24

Rated current

800-1250

800-125

630

Short circuit current

kA

 

 

25

25

20

Duration of the short circuit

 

 

sec

1

1

1

Module dimensions:

 

 

 

 

Width

mm

 

 

500

500

500

Depth

mm

 

 

1050 (*)

1050 (*)

050 (*)

Height

mm

 

 

1700

1700

1700

Height between cubicle bottom  and cable connectors

 

 

mm

 

 

460

460

415

Fuse size

mm

 

 

292

292

462

Weight

kg

210

210

210

* Safe distance between the cubicle rear wall and the room wall is 150 mm min.

 

 

Fuse selection table

 


kV/kV

5

6

10

11

12

15

20

100

25

20

16

10

10

10

6,抢

125

31.5

25

16

16

16

10

6,抢

160

40

31.5

20

16

16

16

10

200

50

40

25

20

20

16

10

250

63

50

31,5

25

25

20

16

315

75

63

40

31,5

31.5

25

20

400

100

75

50

40

40

31.5

25

500

100

100

63

50

50

40

31.5

630

 

 

75

63

63

50

40

800

 

 

100

75

75

63

50

1000

 

 

100

100

100

75

63

1250

 

 

 

 

 

100

75

1600

 

 

 

 

 

 

100