RVUNL JE case studies

RVUNL JE · Put your knowledge to work in context.

The RVUNL Junior Engineer (JE) recruitment exam is the screening route into junior engineering posts at Rajasthan Vidyut Utpadan Nigam, the state's thermal and renewable power generation utility. It suits diploma and degree holders in the advertised branch - Electrical, Mechanical, Civil, Instrumentation, Electronics, IT and related disciplines - who want a generation-side utility career rather than a distribution one. The RVUNL JE case studies are 5 cases and about 3,744 words.

11 kV Feeder Earth-Fault Restoration with a Critical Water Plant

At a 33/11 kV substation serving an industrial area near Bhilwara, 11 kV feeder F-3 trips on earth fault three times in 48 hours during dust storms. F-3 is 6.4 km long, carries a peak of 1.2 MVA, and supplies 18 distribution transformers; one 630 kVA transformer at LT-7 feeds a water-treatment plant that cannot be shut for more than 90 minutes.

829 words, about 4 min 2

Boiler Feed Pump Cavitation with No Standby Available

At a 2×210 MW coal-fired station, Unit 2 is at 180 MW. One motor-driven boiler feed pump is running; the standby pump is out for overhaul.

739 words, about 4 min 3

Turbid Seepage at a Thermal Plant Ash Dyke Before Monsoon

At a 1,000 MW thermal plant, an ash pond is retained by a homogeneous earth dyke 8 m high and 700 m long, with a 1:2.5 downstream slope. During pre-monsoon, the toe drain flow rises from 3 L/s to 12 L/s and becomes turbid; a downstream seepage patch appears 40 m from the toe.

769 words, about 4 min 4

Stale SCADA Data and a Remote Breaker Command

At a 220/33 kV substation, the SCADA RTU suddenly shows frozen values for 12 minutes: feeder currents, transformer tap position and breaker status all remain at pre-fault values, while local control panel indications are normal. The substation has redundant fibre links to the control centre, but link A failed last week and link B is now showing intermittent packet loss.

742 words, about 4 min 5

Siting and Evacuation Advice for a 500 MW Solar Park in Jaisalmer

The Rajasthan government is evaluating a 500 MW solar park on 1,200 ha of revenue land in Jaisalmer district, 18 km from an existing 400 kV substation. The site has global horizontal irradiance of about 5.8 kWh/m2/day, but dust storms reduce module output and water is scarce; the nearest canal outlet is 35 km away.

665 words, about 3 min