We have had a 12MW alternator rotor recently rewound. 4 pole, Salient type, brushless excitation system. After installation it was found to have vibration which whist cold was of relativly low level but increases as the machine is loaded. The vibration level appears to increase as the...
We are planning to inspect a Siemens 4 pole 38MW Generator (type TL11 124/19-15) shortly. This is a steam turbine driven (via gearbox)machine with air cooling, air to water heat exchanger. It has been in service for 10years (Manufactured in 1995) but only approx. 7months per year actaul running...
