Process Engineering Equipment Handbook
This is an illustrated guide to the major equipment found in chemical process plants, for engineers charged with operating, specifying and performing basic troubleshooting on the equipment in their environment.
TABLE OF CONTENTS Process Engineering Equipment Handbook
G
Gas Turbine Cleaning or Washing ( see Turbines)
Gas Turbines ( see Turbines)
Gearboxes ( see Power Transmission)
Reference and Additional Reading
-
Bloch, H., and Soares, C. M., Process Plant Machinery, 2d ed., Butterworth-Heinemann, 1998.
Gears ( see Power Transmission)
Generators; Turbogenerators [*]
This section is written with reference to specific models made by the Alstom corporation. Most generator original equipment manufacturers (OEMs) use similiar standards.
Standard Design
The modular design of the turbogenerator permits the selection of a standard version with either an open or closed cooling system and static or brushless excitation systems.
The generators satisfy the requirement of IEC-34 and other relevant standards such as SEN, ANSI, NEMA, CSA, etc. This means that the generators can be used in countries in which these or comparable standards apply. Generators can be custom built to satisfy other standards.
Configuration
The turbogenerators are two-pole, air-cooled synchronous generators with cylindrical rotor and direct air-cooled rotor winding. They are intended for both basic and peak-load operations and designed to withstand high short-circuiting stresses. The configuration with journal bearings in the end shields permits delivery of the machines as a single unit which considerably simplifies installation and commissioning. See Fig. G-1.
Figure G-1: An installed generator package. (Source: Alstom.)
Degrees of Protection and Methods of Cooling
The design of the generators provides for the following degrees of protection and methods of cooling in accordance with IEC 34-5 and 34-6, 1983.
| Degrees of Protection | Descriptions |
|---|---|
| IP 21 | Protection against... |
Copyright The McGraw-Hill Companies, Inc. 2001 under license agreement with Books24x7
