#

 

●Product Introduction
     
     Epoxy CTC is widely used in power transformer winding owing to its good overall property. The rigidity strength of epoxy CTC at normal temperature is 4 times bigger than the ordinary CTC. When the working temperature is more than 100℃ for a long time, the rigidity strength of epoxy CTC will obviously decline.
The thermoset epoxy CTC researched and developped by Wuxi Toly Electric has covered the shortage of Epoxy CTC. It still has high mechanical strength at 120℃ working temperature. The thermoset epoxy CTC has achieved independent intellectual property rights, which has covered the domestic shortage, and has passed the national product identification organized by China Electricity Council.

●Product Category
Paper insulated thermoset epoxy polyvinyl acetal CTC
Paper insulated thermoset epoxy polyvinyl acetal half-hard CTC
Paperless thermoset epoxy polyvinyl acetal CTC
Paperless thermoset epoxy polyvinyl acetal half-hard CTC
Paper insulated thermoset broadside epoxy polyvinyl acetal CTC
Paper insulated thermoset broadside epoxy polyvinyl acetal half-hard CTC
Paperless thermoset broadside epoxy polyvinyl acetal CTC
Paperless thermoset broadside epoxy polyvinyl acetal half-hard CTC


 
 
●Technology Parameters
Number of CTC strips: 5-80 (odd or even)
Max overall dimension of CTC: 100mm height; 30mm width
Thermoset epoxy enamelled flat wire specification: a:0.80–3.15 mm  b:3.00–13.00 mm
Width/thickness ratio of thermoset epoxy enamelled flat wire: 2.0<b/a<9.0
Polyvinyl acetal enamel layer thickness: 0.08-0.12 mm
Thermoset epoxy enamel layer thickness: 0.03-0.05 mm





   
●Property verification
Wuxi Toly Electric has done the property verification of thermoset epoxy CTC under all kinds of environment and temperatures:
★The thermoset epoxy CTC has good heat resistance property. The bonding strength at 120℃ can arrived more than 60% of the bonding strength at normal temperature. It can also keep compatible with transformer oil.
★The rigidity strength of thermoset epoxy CTC at 120℃ temperature can achieved more than 4 times bigger than the ordinary CTC.
★The dry curing characteristic curve of the thermoset epoxy CTC after winded to coil is suitable for power transformer manufacturing process.