Haryana BSEH Senior Secondary NSQF Power case studies
Haryana BSEH Senior Secondary NSQF Power · Put your knowledge to work in context.
The Haryana Board of School Education (BSEH) offers a Senior Secondary vocational programme in the Power sector under the National Skills Qualifications Framework (NSQF). This credential is designed for students who want a school-leaving qualification combined with job-ready skills for the electricity supply industry. The Haryana BSEH Senior Secondary NSQF Power case studies are 5 cases and about 4,503 words.
1Tail-End Voltage on a Loaded 11 kV Agricultural Feeder
An 11 kV rural feeder leaves a 33/11 kV substation and runs 7 km on 55 mm² ACSR (Rabbit) conductor, with R = 0.545 Ω/km and X = 0.40 Ω/km per phase. Peak load is 2.0 MW at 0.78 power factor lagging, dominated by agricultural pump sets running between 18:00 and 24:00.
862 words, about 4 min2Feeder Breaker Trips Before the Downstream ACB Clears
An 11 kV feeder from a 33/11 kV substation carries a peak load of 100 A and supplies five distribution transformers, one of which is a 630 kVA, 11/0.433 kV unit with 4.5% impedance. The feeder circuit breaker has a 200/1 A CT and a numerical relay set to IEC 60255 standard inverse, pick-up Is = 120 A primary, TMS = 0.15, and a high-set (instantaneous) element at 5 × Is = 600 A primary, definite time 0 s.
898 words, about 4 min3Rooftop Solar Capacity Above the Sanctioned Load
An industrial consumer has a sanctioned load of 150 kW and a contract demand of 160 kVA, fed at 11 kV through a dedicated 250 kVA distribution transformer. The roof can physically hold 180 kWp.
919 words, about 5 min4Rewind or Replace a 75 kW Irrigation Pump Motor
A 75 kW, 4-pole, 415 V IE2 induction motor drives a vertical turbine pump for an irrigation scheme. It runs about 6000 hours a year.
908 words, about 5 min5Energy Audit of a Foundry Near Its Contract Demand
A small steel foundry has a contract demand of 500 kVA, a recorded maximum demand of 470 kVA, a monthly consumption of 96,000 kWh and a power factor of 0.82. The tariff has three parts: energy at ₹7.10/kWh, demand at ₹380/kVA of billing demand, and a power factor penalty of 0.5% of energy charges for every 0.01 by which the monthly average power factor falls below 0.90.
916 words, about 5 min