Impregnation System for Electric Machines
It consists in a system, 100% solids, for the coating of traction engine armatures, generator armatures, stator field coil windings and for electric machines in general.
The system has three components which are easy to stir-mix and have a good working life (pot-life), which allows smooth application regardless of the size of the machine or the coil to be impregnated.
Blending ratio: (Part in weight)
| Resin E-1040 | 100 |
| Hardener E-03 | 85 |
| Accelerator A-382 | 1 |
It is better to prepare the blend at room temperature, first by adding the accelerator to the resin, and then the hardener. If a shortened preparation time is desired, the amount of accelerator can be doubled.
Usage time at room temperature is 12-14 hours for 0.5 kg preparations.
Polymerization Temperatures
| 90ºC | 6 hours |
| 100ºC – 110ºC | 2 hours |
| 120ºC – 130ºC | 1 hours |
Electrical Properties
| Dielectric strength | 16 Kv/mm |
| Surface resistance | 10” OHM |
| Dielectric constant | 3.3 |
| Delta tangent | 0.004 |