11.8.3 Pumped Storage Power Plants
...
354
11.9 Power House and Turbine Setting
...
355
11.9.1 Advantages and Disadvantages of Underground Power-House
...
359
11.10 Prime-Movers
...
362
11.11 Specific
Speed of Turbine
...
367
11.12 Draft Tubes
...
370
11.12.1 Methods to Avoid Cavitation
...
375
11.12.2 Types of Draft Tubes
...
375
11.12.3 Different Types of Draft Tubes
...
377
11.13 Models
and Model Testing
...
378
11.14 Selection of Turbine
...
381
Chapter 12 : Electrical System
...
386
12.1 Introduction
...
386
12.2 Generators and Motors
...
386
12.2.1 Rotors
...
387
12.2.2 Stators
...
389
12.2.3 Ventilation
...
390
12.2.4 Hight-Voltage
Generators
...
392
12.3 Transformers
...
392
12.3.1 Constructional Parts
...
393
12.3.2 Core Constructions
...
393
12.3.3 Windings
...
397
12.4 Cooling of Transformers
...
402
12.4.1 Simple Cooling
...
403
12.4.2 Mixed Cooling
...
403
12.4.3 Natural
Oil Cooling
...
403
12.4.4 Forced Oil Cooling
...
405
12.4.5 Internal Cooling
...
406
12.5 Bus-Bar
...
409
12.5.1 Single Bus-Bar System
...
409
12.5.2 Single Bus-Bar
System with Sectionalisation
...
409
12.5.3 Duplicate Bus-Bar System
...
410
12.6 Busbar Protection
...
411
12.6.1 Differential Protection
...
411
12.6.2 Fault
Bus Protection
...
412
(
xvii)