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Expansion Joints will be used in many cases of operation in the field of High Current Technology.

Expansion Joints will be installed where extensions, vibrations or switching impacts have to be absorbed. Flexible Connections are installed in Bus bar Systems with very long aligning guides or as connections between the transformer to the delta closure.

CONNEX manufactured and supplied

  • all kind of high flexible connections made of copper braids or copper ropes
  • in press welded performance made of copper sheets with fixed connection ends made of foil packages
  • all kind of flexible connections made of copper foils and the fixed connection parts are cross welded to the lamination packages
  • riveted flexible connections made of copper foil packages with a riveted cover foil

We also produce Expansion Joints made of aluminium foil packages with fixed connection parts which will be cross welded to the foil packages.
The connection ends of the Expansion Joints will be made according to the customer requirements.
For the dimensioning of the Expansion Joints you can benefit from our long years of experience.
CONNEX can also produce Expansion Joints with special design e.g. with explosion bonded connection lugs or with connection lugs in precious metal.

For your needs please contact us - we would be pleased to give our advise and to find the individual solution for your requirements.


Press-welded shunts made of copper

(Standard)
Thickness of single foil 0,2 mm
Dimensions
Copper foil width thickness overall lenght presswelded length bore ø height cross section
  mm mm mm mm mm mm mm²
C-PKB 38x5 38 5 180 50 13 40 190
C-PKB 38x10 38 10 230 50 13 45 380
C-PKB 48x5 48 5 250 60 13 45 240
C-PKB 48x10 48 10 250 60 13 50 480
C-PKB 58x5 58 5 300 90 13 65 290
C-PKB 58x10 58 10 300 90 13 70 580
C-PKB 78x8 78 8 300 90 13 70 624
C-PKB 78x10 78 10 300 90 13 70 780
C-PKB 78x12 78 12 300 90 13 70 936
C-PKB 98 x 8 98 8 350 110 13 80 784
C-PKB 98 x 10 98 10 350 110 13 80 980
C-PKB 98x12 98 12 350 110 13 80 1176
C-PKB 118 x 8 118 8 400 130 13 80 944
C-PKB 118x10 118 10 400 130 13 80 1180
C-PKB 118x10 118 12 400 130 13 80 1416
 
Hole pattern acc. to request

General information for the presswelding procedure:

For the presswelding process the single copper foil have to be bare, clean and free of grease. The single foil will be presswelded at the ends under high pressure and high voltage.


Expansion Joints made of aluminum

(Standard)
Thickness of single foil 0,3 mm
Dimension
Expansion Joints made of aluminum width thickness overall lenght presswelded length bore ø height cross section
mm mm mm mm mm mm mm²
C-ALB 38x5 38 5 180 60 13 40 190
C-ALB 38x10 38 10 230 60 13 45 380
C-ALB 48x5 48 5 250 70 13 45 240
C-ALB 48x10 48 10 250 70 13 50 480
C-ALB 58x5 58 5 300 100 13 65 290
C-ALB 58x10 58 10 300 100 13 70 580
C-ALB 78x10 78 10 300 100 13 70 780
C-ALB 98 x 10 98 10 350 120 13 80 980
C-ALB 118x10 118 10 400 140 13 80 1180
C-ALB 118x10 118 12 400 140 13 80 1416
 
Hole pattern acc. to request

General information for welding the connection lugs to the shunts.

The shunts will be welded under shielding gas to avoid oxidation in the welding seam and to guarantee the minimum resistance of the welding seam.

Aluminium E-AL 99,5 or E-ALMg Si 0,5, thickness of single foil 0,3 mm!


Braids (flat) made of Copper or Aluminium

Standard execution acc. to below table
Special execution  acc. to request
 
Dimensions
flat fabric material   width thickness overall length
conncetion lug length bore ø cross section
    mm mm mm mm mm mm²
C-FGB 30x 5,5 30 5,5 220 35 13 60
C-FGB 30 x 6,5 30 6,5 220 35 13 75
C-FGB 40 x 6,5 40 6,5 280 35 13 100
C-FGB 40 x 7,5 40 7,5 280 35 13 120
C-FGB 50 x 8 50 8 280 55 13 150
C-FGB 50 x 9 50 9 280 55 13 200
C-FGB 50 x 11 50 11 320 85 13 250
C-FGB 60 x 11 60 11 400 85 13 300
C-FGB 80 x 11 80 11 400 85 13 400
C-FGB 100 x 12 100 12 400 105 13 500
C-FGB 100 x 14 100 14 460 105 13 600
C-FGB 100 x 16 100 16 460 105 13 800
C-FGB 100 x 19.5 100 19,5 460 105 13 1000
single wire diameter 0,15 mm

Braids can be manufactured out of different material, in different shapes and cross sections - acc. to requirements.

General information for braids:

The ends (connection lugs) will be pressed into a pipe. The pressing process
takes place under high pressure and by using a special production device it is guaranteed that the material density will be in the range of 85 % to 95 %.

applicable material:: copper blank
copper tinned
aluminium
high grade steel

 

The shunts will be welded under shielding gas to avoid oxidation in the welding seam and to guarantee the minimum resistance of the welding seam.