Mahati Electrics

Daund, Pune, Maharashtra

• Using On Load Tap Changers
• The OLTCs select taps on regulating winding on the furnace transformer
• A separate auto transformer is provided and the output tap is selected by OLTC.
• In the auto transformer control there are two construction variants :
• 1. All in one tank
• 2. Furnace in one and auto + OLTC in other

• Both single phase and three phase versions.
• Self regulating winding type
• Regulation by separate auto transformer
• Primary voltage : 3.3/ 6.6 / 11/ 22/ 33 KV
• Secondary voltage: as per process requirement
• KVA range - 1 phase 500 KVA to 18000 KVA3 phase 1000 KVA to 60000 KVA

These are used for various applications and are made in shunt or series types. The construction features further categorize them as- Air core type air cooled.

This is a process to refine the steel melt (obtained generally from Direct Arc furnaces). This transformer can be at 50 cycles or higher frequencies (where rectifier inverter combo is used). Mahati make Laddle Transformers range-Voltage: 3.3, 6.6, 11, 22, 33KVKVA : 1000KVA to 15000KVA

This is a modern and special steel manufacturing processor for high quality steel required in special application like nuclear, missile, battle tank, Ships etc.

• No Load losses minimized by using CRGO steel.
• The Core assembly of step lap construction has minimum losses.
• Core is tightly pressed and bound by glass reinforced resin tapes.
• Proper insulation is provided between clamping channels and the entire assembly is insulated from tank by insulating packing.
• Prime CRGO lamination is used. Cut and assembled to achieve a near perfect-circle core cross section, resulting in the efficient use of materials plus a lighter, more compact, high performance transformer
• Welding process produces deep penetration welds, virtually eliminating leakage from welded tank joints.
• Inside tank surfaces are sand blasted and painted with heat resistant paint.
• Transformer exterior coated to a minimum thickness of 3 mils; this coating has superior endurance characteristics.
• Detachable radiators with/without fansPressed and vacuum treated coils.
• Welding process produces deep penetration welds, virtually eliminating leakage from welded tank joints.
• Inside tank surfaces are sand blasted and painted with heat resistant paint. Transformer exterior coated to a minimum thickness of 3 mils; this coating has superior endurance characteristics.
• Detachable radiators with/without fansPressed and vacuum treated coils of prime quality are used and duly pressure tested.
• OLTCs and OCTCs are of Easun MR/CTR. Recently for an export order, dry type OLTCs were used.the right of this text.

Key Customers

Steel industriesSugar FactoriesAuto IndustriesMilitary engineering servicesAll HV & EHV consumersState electricity boardsCo-genertion plants

These are used for melting of metal however recently the secondary supply of specified voltage is directly fed to the induction furnace coil.