Item 1 – Cast Resin type Isolation Transformer |
HV Winding 1 |
LV Winding 1 |
LV Winding 2 |
|
Rated power |
kVA |
315 |
1250 |
1250 |
Rated voltage |
kV |
33 |
0.48 |
0.48 |
Frequency |
Hz |
50 |
||
Off circuit tapping links |
% |
±2.5%, +-5% |
Nil |
Nil |
Connection |
Delta |
Star |
Star |
|
Vector group |
Dy11y11 |
|||
Insulation level (Maximum BIL/AC) |
kV |
150/70 |
10/3 |
10/3 |
Winding material |
Aluminium cast windings in quartz filled self-extinguishing epoxy resin |
Aluminium cast windings in quartz filled self-extinguishing epoxy resin |
Aluminium cast windings in quartz filled self-extinguishing epoxy resin |
|
Type of winding |
Vacuum Resin Cast |
Vacuum Resin cast |
Vacuum Resin cast |
|
Standard |
AS 60076-11, AS 2374 |
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Installation |
Indoor |
|||
Degree of protection |
IP22 |
|||
Type of cooling |
AN/AF |
|||
Installation altitude |
< 1000 a.m.s.l |
|||
Climatic/environmental And fire behaviour class |
E2-C2-F1 |