By Geoff Klempner
This booklet bargains the total scope of data relating to operation and upkeep of every kind of turbine-driven turbines in-built the area. the data awarded is designed to notify the reader approximately real computer operational difficulties and failure modes that ensue in producing stations and different forms of facilities.Content:
Chapter 1 ideas of Operation of Synchronous Machines (pages 1–38):
Chapter 2 Generator layout and development (pages 39–119):
Chapter three Generator Auxiliary structures (pages 121–142):
Chapter four Operation and keep an eye on (pages 143–250):
Chapter five tracking and Diagnostics (pages 251–331):
Chapter 6 Generator security (pages 333–372):
Chapter 7 Inspection Practices and technique (pages 373–409):
Chapter eight Stator Inspection (pages 411–535):
Chapter nine Rotor Inspection (pages 537–658):
Chapter 10 Auxiliaries Inspection (pages 659–672):
Chapter eleven Generator upkeep trying out (pages 673–778):
Chapter 12 upkeep (pages 779–828):
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Additional info for Handbook of Large Turbo-Generator Operation and Maintenance
Example text
From the relationships shown above among S, P, Q, E, I, and , it can be readily shown that S, P, and Q form a triangle. By convention, Q is shown as positive (above the horizontal), when the circuit is inductive, and vice versa when capacitive (see Fig. 13). To demonstrate the use of the power triangle within the context of large generators and their interaction with the power system, we need to consider a one-line schematic that includes the generator, transmission system, and the connected load at the end (see Fig.
32). The importance of a three-phase system creating a constant field cannot be stressed enough. The constant magnitude flux allows hundred of megawatts of power to be transformed inside an electric machine from electrical to mechanical power, and vice versa, without major mechanical limitations. It is important to remember that a constant-magnitude flux produces a constant-magnitude torque. Now, try to imagine the same type of power being transformed under a pulsating flux (and, therefore, pulsating torque), which is tremendously difficult to achieve.
See Fig. 8. 2 6:49 AM Page 7 ELECTRICAL–MECHANICAL EQUIVALENCE 7 Fig. 6 Schematic representation of a magnetic field produced by the flow of electric current in a coil-shaped conductor operating in air, showing the effective and leakage flux components of the magnetic field produced. 2 ELECTRICAL–MECHANICAL EQUIVALENCE There is an interesting equivalence between the various parameters describing electrical and mechanical forms of energy. People with either electrical or mechanical backgrounds find this equivalence useful to the understanding of the physical process in either form of energy.