VUPOXY E-1K
APPLICATION
It is designated for trickling impregnation of mechanically and thermally highly stressed windings of alternator rotors and high-speed electrical rotating machines for domestic appliances and hand tools of thermal class F-H.
CHARACTERISTICS
Trickling impregnating resin VUPOXY E-1K is one-component impregnating resin based on modified epoxy resin. It is typical for its low level of volatile substance – „VOC = 0“, an excellent mechanical strength, very good penetration into the winding, short curing time at 160oC. Windings impregnating with it have very good mechanical strength, resistance to vapor solvents, transformer oils and refrigerator liquids.
Tab. 1 Processing data
| Density (DIN 53 217) | 20 °C | [kg/m3] | 1150 - 1170 |
| Viscosity | 23 °C | [mPa.s] | 700 - 900 |
| Shelf-life | max. 25 °C | [month] | min. 6 |
| Flash point (AP) | [°C] | min. 140 | |
| Gel time1) | 130 °C | [min] | 5 - 8 |
| Čas gelovania1) | 160 °C | [min] | 2 - 3 |
| Gel time3) | 160 °C | [min] | 15 - 30 |
| Test of effect of impregnating resin on enameled wires (LCIA, LCDA)4) | meets | ||
Tab. 2 Vlastnosti vo vytvrdenom stave
| Curing time of test specimen140 °C | [h] | 2 |
| Electric strength2), 5) 23 °C after 96 h in 92 % water 23 °C |
[kV/mm] | 180 - 220 60 - 70 |
|
Dissipation factor2) |
[%] | 0,5 1,2 |
| Twisted coil test6) 23 °C 155 °C 180 °C |
[N] | 600-640 94-97 87-91 |
1) DIN 16945 Verfahren A
2) DIN 46448 Blatt 1
3) Since reaching 130 °C in winding
4) STN 67 3150 art. 11, met. B, after 60 min at 60 °C
5) Test specimens A2, cylindrical electrode diameter 6 mm
6) STN IEC 61033
PACKING AND STORAGE
Impregnating resin is delivered in non-returnable, clean, for other products not used packages according to agreement between producer and client.
Impregnating resins are stored in tightly closed packages in dry ventilated warehouse by max. +25 °C.
