Teja

Manufacture of Generator • Generator manufacturing can be broadly divided into three main parts: • 1. Stator manufacture • 2. Rotor manufacture • 3. Exciter manufacture

fLowchart of various stages I a generator manufacture

STATOR MANUFACTURE PROCESS:  Stator core construction and  Coil construction and their assembly.

Stator core construction PREPARATION OF STATOR LAMINATIONS  RECEPTION OF SILICON STEEL ROLLS  SHEARING

BLANKING AND NOTCHING

• DEBURRING OPERATION: • VARNISHING: Sheets are dried at a temperature of around 260 – 350 oC 12-18microns Quality Check: xylol test Mandrel Hardness – 7H I.R – 20 laminatons 1m ohm

. STATOR CORE ASSEMBLY • A TRAIL PACKET ASSEMBLY • B NORMAL CORE ASSEMBLY i) Stepped packed assembly ii) Normal packet assembly a) In process pressings 150 kg/cm2 b) Fitting of clamping bolts: