BEM PCE Electrical case studies
BEM PCE Electrical · Put your knowledge to work in context.
The Professional Competency Examination (PCE) is administered by the Board of Engineers Malaysia (BEM), the statutory body that regulates the engineering profession in Malaysia. According to BEM, the PCE is a professional competency examination conducted "for the purpose of issuing a Practising Certificate to the Professional Engineer." In other words, it is the step that converts an already-registered Professional Engineer into a Professional Engineer with Practising Certificate (PEPC) - the registration that permits independent professional engineering practice. The BEM PCE Electrical case studies are 5 cases and about 4,311 words.
1Riser cable substitution on a 22-storey apartment block
You are the professional engineer certifying the electrical design of a 22-storey serviced apartment block supplied at 400 V, 50 Hz, TN-S from a 1500 kVA consumer substation. The rising main to the apartment floors is designed for 400 A per phase over a 160 m route.
823 words, about 4 min2Incomer ACB tripping during chiller starts
A 1500 kVA, 11 kV/400 V, Dyn11 transformer with 5.75% impedance supplies a glove factory. The calculated LV fault level at the main switchboard terminals is 36 kA.
886 words, about 4 min3Rooftop PV earthing and bonding on an existing office
A 300 kWp rooftop PV system is being added to an existing eight-storey office with a TN-S supply from a 1000 kVA transformer. The main earthing terminal is bonded to the foundation piles and measures 6.2 Ω by fall-of-potential at 62% distance; soil resistivity is 180 Ω·m.
835 words, about 4 min4Pressure to energise on the strength of failed test sheets
Commissioning is under way for a new 11 kV/400 V, 1000 kVA consumer substation at a food processing plant. The client's production line is due to start on Monday and the plant manager asks you to authorise energisation based on the contractor's test sheets.
846 words, about 4 min5Neutral overheating after a harmonic-rich office fit-out
An office fit-out adds 140 LED luminaire drivers, 90 desktop PC power supplies and two 45 kW VFD-driven AHU fans to an existing 1000 kVA transformer installation. After occupancy the facility manager reports warm neutral bars and discoloured terminals at two distribution boards, plus an intermittent UPS transfer to bypass.
921 words, about 5 min