3.2.1 The
electrical system is to be stable in all operating profiles defined
in accordance with the System Operational Concept .
3.2.2 The
quality of the power supplies for the loads listed in the System Operational
Concept is to comply with the standard, in place of the limits specified
by Vol 2, Pt 9, Ch 1, 2.1 Quality of power supplies (QPS) 2.1.2 . This
level of quality is to be present at the point where the load is connected
to the electrical power system.
3.2.4 A systematic
procedure incorporating verification and validation methods is to
be used to ensure successful implementation of the defined standard.
A quality plan is to be submitted that describes this procedure along
with the results of the design validation providing:
- details of any power system analysis software and the input data
used;
- a transient stability analysis, unless the generator and load
characteristics indicated by Vol 2, Pt 9, Ch 2, 6.4 Generator control are
shown to be representative of the system under consideration;
- a harmonic distortion analysis, if the sum of loads that distort
the current waveform is greater than 1% of the short circuit power
of the generating capacity.
3.2.5 Where
a transient stability analysis demonstrates that the defined standard
requirements can be satisfied by generator control requirements different
to those specified by Vol 2, Pt 9, Ch 2, 6.4 Generator control ,
these may be accepted as equivalent to the Rules.
3.2.6 Unless
it can be satisfactorily shown by the design verification and validation
process that the requirements of the defined standard can be met,
then measurements are to be taken as specified in Vol 2, Pt 9, Ch 12, 1.2 Trials 1.2.8.