06EEL77 - Relay and High Voltage Lab Regulation 2006 - 2007 |
PART - A
(Choose at least two experiments)
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1. Over current relay :
(a) IDMT non-directional characteristics
(b) Directional features
(c) IDMT directional
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2. IDMT characteristics of over voltage or under voltage relay. .(solid stare
or electromechanical type .
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3. (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. Operating characteristics of over voltage or under voltage relay. (Solid
stare or electromechanical type).
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4. Operation of negative sequence relay.
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5. Bias characteristics of differential relay.
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6. Current-time characteristics of fuse.
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PART - B
(Choose at least one experiment)
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1. Operating characteristics of microprocessor based (numeric) over –current
relay.
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2. Operating characteristics of microprocessor based (numeric) distance
relay.
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3 Operating characteristics of microprocessor based (numeric) over/under
voltage relay.
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PART - C
(Choose at least one experiment)
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1. Generator protection –Merz-Price- protection scheme.
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2. Feeder protection scheme-fault studies.
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3. Motor protection scheme-fault studies.
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PART - D
(Choose at least two experiments)
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1. Spark over characteristics of air insulation subjected to high voltage AC
with spark over voltage corrected to STP.
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2. Spark over characteristics of air insulation subjected to high voltage AC,
with spark over voltage corrected to STP for uniform and non-uniform
field configuration.
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3. Spark over characteristics of air insulation subjected to high voltage dc
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4. Measurement of HVAC and HVDC using standard spheres.
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5. Breakdown strength of transformer oil using oil-testing unit.
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6. Field mapping using electrolytic tank for any one-model
cable/capacitor/transmission line/ Sphere gap models.
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