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Three-phased short-circuiting device for spherical pieces-fast automatic clamp CAR

Three-phased short-circuiting device for spherical pieces-fast automatic clamp CAR


   

Code: Msp – CAR – 3xSf/lf – Sp/lp – S    

The three-phased earthing device is equipped with three fast automatic phase clamps (“CAR” type) which can be fixed on spherical pieces (diameter 30 mm) permanently mounted on bus bars. The “CAR” automatic clamp contains an extruded body made of alluminium alloy and a fast tightening screw with a bayonet terminal for coupling with PMU insulating sticks.    

Parameter

Value

Earthing Sp and short-circuiting Sf cable sections (mm2)

16

25

35

50

70

95

120

Nominal short-circuiting current for t = 1s Isc (kA)

3,5

6

8

12

16

20

30

Nominal peak currrent for t = 0,02 s Isd (kA)

8,75

15

20

30

40

50

75

Testing short-circuiting current for t = 1s (kA)

4,6

6,9

9,2

13,8

18,4

23

34,5

Testing peak current for t = 0,02 s (kA)

11,5

17,25

23

34,5

46

57,5

86,25

Peak factor

2,5

Short-circuiting cable length If (m)

max. 2,5

Short-circuiting cable length Ip (m)

max. 7

Diameter of the spherical pieces (mm)

30

The three-phased short-circuiting device contains:
– fast automatic phase clamps – 3 pieces
– phase cables – 3 pieces
– earthing cable – 1 piece
– earthing clamp – 1 piece

The short-circuiting device is delivered in a transport bag/box.