(Transformers with Normal & Off Circuit Tap Changer)
Range:- Upto to 1000KVA in(11KV class)
Atulya Transformers covers a wide range of oil-filled distribution Transformers with off circuit Tap Changer (Upto 1000KVA Capacity in11 Kv Class) that have low losses and are suitable for continuous rating its full capacity maximum efficiency is insured by restricting the core and winding losses.
Technical Specification
Capacity – up to 1000KVA
No of phases – 3 Phases
Frequency – 50Hz
Input Voltage Range – 11KV
Output Voltage Range – 433V
Vector Group – DYN11
Insulation – Class’A’
Tapping – +5% H.T. Side in steps of 2.5% each
Duty Cycle – Continous
Winding – Al/Cu Wound
Terminals – As per required
CORE
The core used is best quality cold rolled grain oriented and laser processed silicon steel sheet. They provide low iron loss, low noise, and compact size and have the best performance for high efficiency transformers.
WINDINGS
We use high quality conductor of copper aluminium in our products. Round or rectangular copper/aluminium wires ribbed with thermally upgraded insulting paper are applied in oil immersed transformers. The winding have a compact size, excellent heat transmission, low load loss, high lighting impulse resistivity and outstanding anti-short- circuit strength.
INSULATION
Our oil-immersed transformers are insulated by electrical grade insulated press board and thermally upgrade insulating Kraft paper.
Standard Fittings:
- Name & diagram plate
- Oil conservator with drain plug
- Oil level indicator
- Lifting lugs
- Silica gel breather
- Cooling radiators
- Earthing terminals
- Thermometer pockets
- Air release hole with plug
- Explosion vent with diaphragm
- Uni/Bi-direction wheels
OPTIONAL ACCESSORIES
Buchholz relay, cooling fan, HV & LV cable box, cable duct, bus bar duct, dial-type thermometer, oil level gauge, on-load type tap changer, protective fuse and lightning arresters are available upon customer’s request at extra cost.