UNSW VISIT – IMPULSE TESTING OF TRANSFORMERS
New 150kv High Voltage Testing Equipment facilities.
New 150kv High Voltage Testing Equipment facilities.
Impressed with the quality and reliability Hi Tortech I wanted to let you know that we were very pleased with the quality of the transformers that were supplied to us.…
Below is an summary of the most common questions & answers regarding our step-down transformers. If your question isn't answered after reading the following you can see our specific Q&A…
The most important part of the design of this VT is the external high voltage fuse connected in series with the VT on the HV Terminal.
This is one convenient type of discharge reference source for Partial Discharge applications.
It can be used to cross check electrical calibrators for partial discharge.
The voltage and frequency of countries do vary. Whilst most countries like Australia use 50Hz (50 cycles per second) as their AC frequency a minority use 60Hz, including the United…
Designed for industrial use, all our transformers come with a 12 month Warranty.We offer testing and customer support from our office in Sydney.Our quality commitment ensures that our products are manufactured to ISO9001 standards.Our isolation…
Michael Larkin, CP Eng. B Eng. UNSW (Hons) M.D. Tortech P/L ; M.D. Tortech Lighting P/L Michael was a Sir William Tyree scholarship holder in 1973 at the UNSW School…
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 |
|||
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 |
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