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Ventilated & Netted CTC (VCTC)
 
ventilated CTC, VCTC, continuously transposed conductor, copper wire manufacturer - Image
Ventilated CTC
(CTC with Cooling Duct)
1 Number of Strip 31 to 63
2 Width of Strip 6.5 to 12.5 mm
3 Thickness of Strip 1.8 to 2.5 mm
4 Height of the Slot or Duct 3 to 4 mm
5 Increase due to enamel 0.14 + /- 0.02 mm
6 Pitch of the Duct 80 to 120 mm
7 Thickness of net 0.3 mm + / - 0.01
8 Type of lapping Single layer with 25% overlap

 
Dimension Calculation
1. Nom. Axial width (B) = Fw + 2(b+E+Ep) + L + I
2. Nom. Radial height (H) = Fh + (n+1) / 2 (h+E+Ep) + I
 
Fw = Factor (1.01 for soft 1.02 for CPR)
Fh = Factor for Radial Height

b = Norm. width of Single strand
h = Norm. Thickness of Single strand
E = Increase due to enamel

Ep = Increase due to Epoxy

L = Thick. of Int. Col. Paper
I = Increase due to paper Insulation or Net Tape

 
 
 
 
 
 
 
 

 

 
 
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