BS 7698-5:1993

Committees responsible
National foreword
Specification
1. Scope
2. Normative references
3. Symbols
4. Other regulations and additional requirements
5. Frequency characteristics
6. Overfrequency characteristics
7. Voltage characteristics
8. Sustained short circuit current
9. Factors affecting generating set performance
10. Cyclic irregularity
11. Starting characteristics
12. Stop time characteristics
13. Parallel operation
14. Rating plates
15. Further factors influencing generating set
     performance
16. Operating limit values for performance classes
Table
1. Examples of active power sharing
2. Examples of reactive power sharing
3. Operating limit values
Figures
1. Frequency/power characteristic, range of frequency
     setting
2. Frequency/power characteristic, deviation from the
     linear curve
3. Steady-state frequency band
4. Dynamic frequency behaviour
5. Transient voltage characteristics without
     quadrature-current compensation voltage droop
6. Guide values for maximum possible sudden power
     increases as a function of brake mean effective
     pressure, pme, at declared power (four stroke
     engines)
7. Guide values for maximum possible sudden power
     increases as a function of brake mean effective
     pressure, pme, at declared power (two-stroke high-
     speed engines)
8. Starting characteristics
9. Power sharing in parallel running
10. Stopping characteristics
11. Sinusoidal voltage modulation of an amplitude a10
     and a regular frequency of 10 Hz
12. Curve gf = a10/af giving equivalent perceptibility
     due to change in brightness
13. Example of a rating plate for an RIC engine driven
     generating set

Defines terms and specifies design criteria arising out of the combination of a reciprocating internal combustion (RIC) engine and an alternating current (a.c.) generator when operating as a unit. Applies to a.c. generating sets driven by RIC engines for land and marine use, excluding generating sets used on aircraft or to propel locomotives and land vehicles. Coverage includes: stop time characteristics; factors affecting generating set performance; sustained short circuit current. Also gives detailed tables and diagrams.