Tamil Nadu HSE Second Year Basic Electrical Engineering case studies
Tamil Nadu HSE Second Year Basic Electrical Engineering · Put your knowledge to work in context.
Basic Electrical Engineering is the Second Year (Class XII) elective offered under the Tamil Nadu State Board Higher Secondary curriculum for students in the vocational and science streams who want a practical grounding in electrical theory and workshop practice. It suits candidates who intend to enter diploma or degree programmes in electrical and electronics engineering, or to move into technician roles in wiring, motor maintenance, panel work or appliance servicing. The Tamil Nadu HSE Second Year Basic Electrical Engineering case studies are 5 cases and about 3,130 words.
112 V LED Work Lamp on a Long Two-Core Cable
A maintenance team installs a 24 W, 12 V LED work lamp at the end of a 40 m run of two-core flexible cable. The cable datasheet gives 0.0075 Ω per metre per conductor.
693 words, about 3 min2Replacing a Reservoir Capacitor in a 19 V Power Supply
A student repairs a linear bench power supply. The original reservoir capacitor is 470 µF, 35 V, 105 °C, low ESR.
647 words, about 3 min3Power-Factor Correction for a 415 V Workshop Motor
A coir-making unit runs a 415 V, 50 Hz, three-phase induction motor at a line current of 12 A and a power factor of 0.80 lagging. The utility applies a penalty when the power factor falls below 0.95.
649 words, about 3 min4Is the 10 kVA Transformer Overloaded?
A small eatery has a 10 kVA, 2300/230 V single-phase transformer. The open-circuit test on the LV side gives 230 V, 1.2 A, and 90 W.
543 words, about 3 min5Warm Plug Top on a 3 kW Water Heater Circuit
A household has a 230 V, 3 kW storage water heater supplied by 30 m of 2.5 mm² two-core-and-earth PVC cable. The cable is clipped in a hot loft, where its tabulated current rating is derated from 24 A clipped direct to 17.5 A.
598 words, about 3 min