(Capacity 6.3 to 3000 KVA upto 33 KV)

ADVANTAGES OF EQUIPMENTS

PRODUCT RANGE :
Power & Distribution transformers from 6.3 KVA to 3000 KVA upto 33 KV also be provided on both HV and LV Cable boxes.

TEMPERATURE RISE
KOMAL’S transformers are designed for a maximum temperature rise of 40/50 degree C of oil / winding. Lower temperature rise can be offered on request.

CORE
The core is constructed from low loss, cold rolled, grain oriented, annealled laminations of electrical sheet steel conforming to the latest international standards. Special frame is built in-house for clamping the core to reduce the magnetic noise as well as making the whole structure rigid and robust.

WINDING
Coils are wound with electrolytic high conductivity paper covered or synthetic enamelled copper conductors. Cooling ducts are provided to keep the hot spot temperature as low as possible. Coils are dried in electric ovens. Rigid connection support and col clamping is provided to ensure high short circuit strength.

INSULATION
Precompressed board PARMALI board and JAPANEESE insulation paper of best quality is used.

TAPPING
A.OFF CIRCUIT TAP CHANGING SWITCH
Tapping from + 5% in steps of 2.5% for HV variation or as per customer’s requirement.

B.ON LOAD TAP CHANGER
16 steps OLTC for HV variation from +5% to -15% in steps of 1.25% or as per specific requirements. OLTC for remote / auto / parallel operation can also be offered.

OIL
Oil is tested for resistivity, dielectric and acidic characteristic conforming to IS-335. Before topping up oil is filtered throughly.

TANKS
The tanks are made of M.S. steel plates / sheets with adequate bracing & stiffness. Tanks are pressure tested to withstand any type of inside or outside pressure. All the external surfaces are given a primary coat of zinc chromat, red oxide an two finishing coats of grey paint. The inner surfaces are given a coat of heat and oil resisting paint.

QUALITY CONTROL AND ROUTINE TESTS
All KOMAL’S transformers undergo rigorous quality control checks and are routine tested as per IS in our fully equipped laboratory. Any specific test required by the customer can also be arranged