Over current relay : (a) IDMT non-directional characteristics (b) Directional features (c) IDMT directional
IDMT characteristics of over voltage or under voltage relay.(solid state or electromechanical type
(a) To determine 50% probability flashover voltage for air insulation subjected to impulse voltage. (b) Generation of standard lightning impulse voltage and to determine efficiency and energy of impulse generator.
Operation of negative sequence relay.
Bias characteristics of differential relay.
Current-time characteristics of fuse.
Operating characteristics of microprocessor based (numeric) over –current relay.
Operating characteristics of microprocessor based (numeric) distance relay.
Operating characteristics of microprocessor based (numeric) over/under voltage relay.
Generator protection –Merz-Price- protection scheme.
Feeder protection scheme-fault studies.
Motor protection scheme-fault studies.