Punjab PSEB Sr. Sec. NSQF Power (Distribution Lineman) case studies
Punjab PSEB Sr. Sec. NSQF Power (Distribution Lineman) · Put your knowledge to work in context.
NSQF Power (Distribution Lineman) credential is a school-level vocational qualification delivered under Punjab School Education Board's NSQF framework. It is aimed at students and trade aspirants who want a recognised, practical grounding in overhead and underground power distribution work - the day-to-day craft of the lineman rather than electrical engineering theory. The Punjab PSEB Sr. Sec. NSQF Power (Distribution Lineman) case studies are 5 cases and about 3,081 words.
1Warm Neutral Link and High Neutral Current on a Mixed LT Feeder
An 11/0.4 kV, 250 kVA distribution transformer supplies a 300 m long three-phase four-wire LT feeder. The feeder serves 22 single-phase shop connections and four small three-phase motors.
722 words, about 4 min2High Oil Temperature on a 250 kVA Transformer During a Village Fair
An 11/0.433 kV, 250 kVA ONAN distribution transformer supplies an agricultural feeder. The nameplate gives a full-load current of 333 A at 433 V.
621 words, about 3 min3Wet Joint and Single-Phase Earth Fault on an 11 kV XLPE Cable
An 11 kV, three-core, 95 sq mm XLPE cable runs 600 m from a ring main unit to a distribution transformer. After two days of heavy rain, the 11 kV feeder trips on earth fault.
595 words, about 3 min4Back-Feed from a Consumer Generator During a Feeder Shutdown
An 11 kV feeder is switched off at the 33/11 kV substation for replacement of a damaged pole. The substation issues a permit-to-work and applies a visible earth at the feeder isolator.
576 words, about 3 min5Low Road Clearance on a Leaning 11 kV PCC Pole
An 11 kV overhead line crosses a village road on a 65 m span between two 9 m PCC poles. The conductor is ACSR Rabbit and the line was erected three years ago.
567 words, about 3 min