Essential Knowledge and Associated Skills EKAS This describes the essential skills and knowledge and their level required for this unit Evidence shall show that knowledge has been acquired of developing and evaluating transmission switching programs All knowledge and skills detailed in this unit should be contextualised to current industry practices and technologies KSTSOA Complex power system protection operations KS01-TSO50A Complex power system protection operations Evidence shall show an understanding of complex power system protection operations to an extent indicated by the following aspects T Protection system types encompassing Requirements of a protection scheme relationship to primary system design purpose of protection safety of persons protection of plant system instability system break up loss of customers loss of revenue protection zones restricted schemes unrestricted schemes duplicate protection local backup protection remote backup protection selectivity discrimination stability sensitivity reliability Components of a protection scheme current transformers potential transformers summation current transformers interposing transformers multitapped transformers allornothing relays induction relays balanced beam relays directional relays biased relays solid state relays microprocessor based relays gas relays thermal sensors hardwired communication powerline carriers systems microwave systems fibre optic systems need for isolation need for interfacing Protection applied to buses overload differential earth leakage structure leakage combined schemes protection overlap Protection applied to transformers biased differential gas winding temperature oil temperature Protection applied to singleradial lines overcurrent earth leakage slow earth leakage distance auto reclose sectionalising over voltage Protection applied to interconnected lines overcurrent pilot wire directional directional overcurrent current differential phase comparison current comparison distance impedance admittance offset T Use of fault information to analyse and develop optimal network restoration strategies encompassing Commonwealth StateTerritory and local government legislation supply authority regulations Standards codes and or enterprise requirements applicable to the analysis of protection targeting Requirements for the use of operational manuals system diagramsplans and drawings Techniques in the collation of protection data Techniques in the analyse and assessment of fault information public employee protection equipment Application methods of fault information to analyse and develop optimal network restoration strategies public and employee safety enterprise reliability guidelines resource availability |