| |
Replacement of the Generator |
 |
Examples of generator replacement
Ex.1 : 200MVA class old water -cooled generator
(made by other manufacturer) |
| |
 |
Generator replacement |
| 200MVA class new air-cooled generator |
|
Ex.2 : 250MVA class old hydrogen cooled generator
(made by other manufacturer) |
| |
|
Generator replacement |
| 400MVA class new hydrogen-cooled generator |
|
| Ex.3 : Large capacity old generator |
| |
|
Spare rotor |
Short-term outage for rehabilitation
(Toshiba has experiences in manufacturing 1120MVA 2-pole generators.) |
|
| Ex.4 : 500MVA old water-cooled generator |
| |
|
Stator rewinding
Gas Pressure raise up |
| 550MVA water-cooled generator |
|
| Ex.5 : 48000kVA air cooled old generator |
| |
|
Stator rewinding
Rotor replacement |
55000kVA air-cooled generator
Option: Static Excitation Brushless a.c. exciter |
|
| Ex.6 : 800MVA water-cooled generator, Efficiency 98.93% |
| |
|
Stator rewinding
Fan and End Shield Replacement |
| 800MVA water cooled-generator, Efficiency 99.01% |
|
|
|
