Oil Cooled Distribution Transformer
We cover a wide range Oil Filled Transformer with Off Circuit Tap Changer / On Load Tap Changer (up to 5000 KVA in 11 KV & 33 KV) conforming to the international standards of quality and safety for industries and commercial set-ups. These transformers are designed and developed using latest technologies and can be provided with a variety of terminations so as to suit the requirements for new installation or replacement. 
Optimum efficiency is ensured by delicate proportioning of core and winding looses using CRGO M3 to MS MOH Lamination, Electrolytic Grade 99.9% pure copper, with Transposition in L.V. coil for current sharing in parallel Conductors, Electric grade press paper, boards and mineral oil. Thus better regulation is achieved resulting in longer life. Careful designing also reduces noise level to the minimum.
Standard Specifications
| Capacity | Up to 5000 KVA |
| No. of Phases | 3 Phase |
| Frequency | 50 Hz. |
| Voltage Range | 11 KV / 22 KV / 33 KV |
| Tapping | On Load Tap Changer to provide +5% to -15% Taps in steps of 1.25% on the H.T. Side. Else, Off Circuit Tap Changer for ± 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 (for Oil Cooled Transformers)
| 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 |
Standard Fittings (for Oil Cooled Transformers)
| * Bucholtz relay with alarm and trip contact |
| * Oil temperature indicator with alarm and trip contact |
| * Winding temperature indicator with alarm and trip contact |
| * Magnetic oil level gauge with alarm contact |
| * Marshalling box to house O.T.I. and W.T.I |
| * RTCC (Remote Tap Changer Control) Cubicle |
| * Electronic Automatic Voltage Controller |
| * Pressure Release Valve |
| * Cable Box on H.T. & L.T. Side |
