Oil-Cooled Distribution Transformer with Off-Circuit Tap Changer
RANGE : Upto 10 MVA in 11, 22, 33 & 66 KV Class.
Golden Transformer & Servo offers an extensive selection of Oil-Filled Distribution Transformers with Off-Circuit Tap Changer (up to 5000 KVA in 11 KV & 33 KV Class) that comply with international standards of quality and safety. These transformers are crafted utilizing the latest technologies and can be equipped with various terminations to meet the demands for new installations or replacements.
We ensure optimum efficiency by meticulously balancing core and winding losses through the use of CRGO M3 to M5 MOH Lamination and Electrolytic Grade 99.9% pure copper. Additionally, we incorporate transposition in L.V. coils for current sharing in parallel conductors, electric-grade press paper, boards, and mineral oil. This careful design approach results in improved regulation, ultimately leading to a longer lifespan. Moreover, our meticulous design process effectively minimizes noise levels.
| STANDARD SPECIFICATIONS |
|
| Capacity |
Up to 10 MVA |
| No. of Phases |
3 Phase |
| Frequency |
50 Hz. |
| Voltage Range |
11 KV / 22 KV / 33 KV / 66KV |
| Tapping |
+5% to -5% Taps on H.T. Side in steps of 2.5% each. |
| Insulation |
Class ‘A’ |
| Vector Group |
Dyn 11 |
| Duty Cycle |
Continuous |
| Winding |
Copper Wound |
| Terminals |
As per required |
| STANDARD FITTINGS |
|
| Rating & Diagram plate |
Earthing terminals |
| Lifting lugs |
Thermometer pocket |
| Oil Conservator with drain plug |
Air release hole with plug |
| Oil Level indicator |
Explosion vent with diaphragm |
| Top-filter Valve |
Inspection cover. |
| Silica gel breather |
Drain –cum-bottom-filter valve |
| Cooling radiators |
Uni / Bi- directional rollers |
| OPTIONAL FEATURES |
|
| Buchholz relay with alarm and trip contact |
Magnetic oil level gauge with alarm contact |
| Pressure Release Valve |
Marshalling box to house O.T.I. and W.T.I |
| Cable Box on H.T. Side |
Cable Box on L.T. Side. |
| Oil Temp. Indicator with alarm & trip contact |
RTCC (Remote Tap Changer Control) Cubicle |
| Winding Temp. indicator with alarm & trip contact |
Electronic Automatic Voltage Controller |
