Continuously Transposed Conductors (CTC)
Enamelled, Epoxy-Bonded & Thermally Upgraded Copper CTC for Power Transformers
Technical Baseline & Specification Parameters
| Conductor Material | Oxygen-Free High Conductivity Copper (Cu-OF / Cu-ETP ≥ 99.99%) |
|---|---|
| Number of Strands | 5 to 83 rectangular enamelled strands |
| Enamel Coating | Polyvinyl Formal (PVF/Formvar) or Polyesterimide + Polyamideimide (Theic) |
| Bonding Layer | Epoxy resin coated (cures during drying to withstand short-circuit radial forces) |
| Paper Wrapping | Pure kraft paper, thermally upgraded paper, or aramid (Nomex) |
Subcategories & Engineering Architectures
Standard Kraft Paper CTC
Individual enamelled strips continuously transposed to minimize eddy-current circulation losses in high-current windings.
Epoxy-Bonded CTC
Special thermo-setting adhesive bond curing during vacuum vapor-phase heating into an exceptionally rigid beam.
Netless CTC
Direct strand interlock without internal polyester mesh to maximize copper packing factor.
High-Temperature Aramid CTC
Insulated with DuPont Nomex for hybrid dry-type and high-overload traction transformers.
Suppliers in this category (19)
Companies listed for this category. A listing is not a product certification. The identity badge is shown only after TransformerPath checks the organization and a business contact.
| Company & Location | Capabilities & Product Lines | Status | Action |
|---|---|---|---|
|
ASTA Energy Transmission Oed, Austria |
World-leading CTC and insulated copper conductors for energy transmission | Listed | Website ↗ · RFQ |
|
Samdong Seoul, South Korea |
Continuously transposed cables and oxygen-free high conductivity copper | Listed | Website ↗ · RFQ |
|
Synflex Group Blomberg, Germany |
CTC conductors, winding wires, and insulating wrapping tapes | Listed | Website ↗ · RFQ |
|
ASTA Energy Transmission Components GmbH Oed, Austria |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
De Angeli Prodotti S.r.l. Bagnoli di Sopra, Italy |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Essex Furukawa Magnet Wire LLC Atlanta, United States |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Lee Vedla Industrial Corporation Bhopal, India |
Copper / CTC conductors, Pressboard / insulation materials, CRGO (core steel), Transformer oil / ester fluids | Listed | Website ↗ · RFQ |
|
Luvata (Mitsubishi Materials Group) Pori, Finland |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Precision Wires India Ltd (PWIL) Mumbai, India |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Ram Ratna Wires Ltd (RR Shramik) Silvassa, India |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Rea Magnet Wire Company, Inc. Fort Wayne, United States |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Sam Dong Co., Ltd. / Sam Dong America Eumseong, South Korea |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Schwering & Hasse Elektrodraht GmbH Lügde, Germany |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Shing Ho Copper Wire Co., Ltd. Tainan, Taiwan |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Tianjin Jingwei Power Technology Co., Ltd. Tianjin, China |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Tongling Jingda Special Magnet Wire Co., Ltd. (Jingda) Tongling, China |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Wuxi Toly Electric Works Co., Ltd. Wuxi, China |
Copper / CTC conductors | Listed | Website ↗ · RFQ |
|
Inspros Engineers Ltd Mandideep, India |
Copper / CTC conductors, Bushings (HV, LV) | Listed | Website ↗ · RFQ |
|
Raychem RPG (P) Ltd. Thane, India |
Copper / CTC conductors, Bushings (HV, LV), Pressboard / insulation materials, Transformer oil / ester fluids | Listed | Website ↗ · RFQ |
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