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Continuously Transposed Cables
Fibre Glass Covered
Enamelled
Wrapped
Speciality Products
 
 
 
 
  Continuously Transposed Cables (CTC)
Advantages of using CTC
   
 -  Lower cost due to reduction in material used
 -  Reduced winding time thereby increasing productivity.
 -  Deliver greater electric efficiency by minimizing load losses.
 -  Improved cooling of the conductor.
 -  Improving mechanical strength of the windings.
 -  Transformer size becomes smaller thereby reducing the overall cost.
Enamelling Line

Benefits of Epoxy coating:
- Reduction of risks of shorts.
- Exceptionally strong bond strngth in the winding.
- Epoxy resin cure in the same thermal treatment for drying paper.
- Better insulation of each single strip.
- Conductors in the winding become like a solid beam.
- Small thickness of coating needed in order to achieve very strong bonding.
- Improves the windability of the CTC.
- No-pollution, beacause the B-stage resin does not contain residue of harmful solvents.

Insulation Options of CTC
- Kraft Paper
- Thermally Upgraded Paper
- 22 HCC Dennison
- Nomex®
- Special Papers as per customer requirements.

Paper Makes
- Wiedmann-USA
- Munjsko - Sweden
- Amotfors Brukab - Sweden
- Dupont - USA
- Pucaro - Germany

Other Options
- CTC with short pitches thereby increasing flexibility and wind ability of cable.
- Inter - column separator can be provided
- Returnable Reels


Transposing Head

Dust Free Manufacturing Facility
 
Production Scope ( CTC )
Controlled proof stress copper Rp (0.2 %) MPa Controlled proof stress copper BS 1432 Rp ( 0.2 % ) MPa
Annealed 60 - 100 CPR1 140 - 200
CPR - A 90 - 120 CPR2 170 - 220
CPR - B 120 - 150 CPR3 220 - 260
Production Scope (CTC):
- Number of Strands
~5 - 47
- Width of Individual Strands
~3 mm - 12.5 mm
- Thickness of individual Strands
~1.1 mm - 3.2 mm
- paper insulation increase
~3.60 mm
- Pitch
~min 50 mm - max 200 mm
 
 
Production Scope (Enamelled) Data
Designation Type of Enamel Grade Increase in Dimensions(mm)
PVA - POLY VINYL ACETAL Polyvinyl formal resins 1
2		 0.10 + 0.02
0.14 + 0.03
PVA - POLY VINYL ACETAL + Epoxy Polyvinylofrmal + B stage epoxy resins 1
2		 0.17 + 0.03
0.19 + 0.03
Dual Coat 200 Polyesterimide + polyamide imide resins 1
2		 0.11 + 0.02
0.14 + 0.03
 
   Nominal Cross Sectional areas of preffered sizes Download
 
Quality Department KSH Standard Reel sizes (Returnable Reels)
D1
Flange
mm 		D2
Core
mm 		D3
Bore
mm 		D4
Driving
Hole
mm		 D5
Distance of
driving hole
mm		 B1
Total
Outer
Width
mm		 B2
Total
Inner
Width
mm		 Reel
Tare
Weight
Appr. Kg		 Fill
weight
Appr. Kg
1600 1000 82 55 560 630 530 180 2500
1400 900 82 55 560 630 530 140 1500
1250 900 82 55 560 630 530 120 1300