1 Introduction
This document
provides the general data requirements for power system studies. For specific system
studies additional information may be needed and the same will be sought by the
consultants. Some of the requirements specified may not be needed for all the studies.
2 General Requirements
- Description of the system for which
the electrical system studies are needed
- Description of the system study objectives
- Complete single line diagram of the system, showing generators, loads, transformers,
cables, overhead lines, shunt capacitors, shunt reactors, series capacitors, series
reactors, motors, SVC’s, HVDC elements, Breakers, relays, CT’s, PT’s, Isolators
and any other relevant critical circuit elements.
- Clear identification of the existing and proposed system modifications if any, on
the single line diagrams.
- Technical Datasheets of the generators, AVR, Speed Governor, Prime Mover. The data
sheets for generator controllers should be suitable for transient and dynamic stability
simulations. V/F capability curves, negative sequence current withstand capability
curves, description of various protections.
- Technical data sheets for transformers along with the thermal withstand capability
curves, V/F capability curves.
- Technical data sheets for HT motors with no load and blocked rotor test results
and motor characteristics (performance curves supplied by the manufacturer). Motor
starting method and starting time.
- Technical data sheets, catalogues, application guides for protective relays
- Plant operating philosophy for various operating conditions (peak demand, minimum
demand, with or without grid support, during maintenance/ equipment outage conditions)
along with bus-wise generation and load details.
- Details
of the cables, over head lines, there impedance parameters, length, number of runs
- Technical
data sheets for shunt capacitors, shunt reactors, SVC’s, harmonic filters, series
capacitors, series reactors