1. With regards to electrical noise and inductive coupling,explain the purpose of running current carrying conductors in theirown raceway separate from signaling cables. Does the type ofraceway material, ferrous vs non-ferrous make difference?
2. When it comes to load switching on power systems, transientsare unavoidable. Discuss how switching on and off inductive andcapacitive loads contribute to this problem.
3. List two materials commonly used in TVSS (Transient VoltageSurge Suppressors). As well,
UL 1449 uses 3 categories when rating Surge Protective Devices(SPD) / Transient Voltage Surge Suppressors (TVSS). List thecategories and explain how they apply to a TVSS’s performance.
4. In the case of the vibrating transformer, discuss thefollowing;
- detection method used to find the problem,
- the problem itself,
- what can be repaired on the transformer or external equipmentto prevent the vibrating and buzzing noise?
