BCS Written EEE (892) case studies
BCS Written EEE (892) · Put your knowledge to work in context.
The BCS Written Examination for Electrical and Electronic Engineering (often cited as BCS 892) is a descriptive, subject-wise written assessment used in Bangladesh Civil Service recruitment for engineering candidates. It is intended for graduates in electrical and electronic engineering who are competing for cadre posts where technical judgement, not just recall, is being tested. The BCS Written EEE (892) case studies are 5 cases and about 2,915 words.
1Fault-Level Coordination on a 33 kV Feeder After Transformer Upsizing
A textile mill is fed from a dedicated 33/11 kV, 5 MVA, 8% impedance transformer through a 1.2 km 11 kV cable (positive-sequence impedance 0.18 + j0.09 ohm/km) to an 11 kV switchboard. The mill's maximum demand is 3.8 MVA at 0.88 power factor.
624 words, about 3 min2Choosing Between Star-Delta and VFD Starting for a 400 kW Pump
A water utility must start a 400 kW, 415 V, 4-pole cage induction motor driving a centrifugal pump. The motor has a locked-rotor current of 6.5 times full-load current and a locked-rotor torque of 110% of full-load torque.
639 words, about 3 min3Sampling and Anti-Aliasing in a Vibration Monitoring Channel
A condition-monitoring system samples an accelerometer signal to detect bearing defects. The analyst wants to capture defect frequencies up to 8 kHz, and the hardware provides an anti-aliasing filter with a selectable cutoff.
549 words, about 3 min4Relay Setting for a Generator-Connected Microgrid in Island Mode
A 2 MVA, 11 kV synchronous generator with 12% subtransient reactance supplies an industrial estate in island mode through a 2 km 11 kV cable. The estate load is 1.4 MW at 0.9 power factor.
535 words, about 3 min5Ethical Pressure to Sign Off an Untested Protection Upgrade
You are the graduate electrical engineer on a substation refurbishment. A contractor has installed new numerical relays on four 11 kV feeders and a new IEC 61850 station bus.
568 words, about 3 min