a) List three of the necessary attributes of a good power system protection scheme and briefly explain why they are requ

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A List Three Of The Necessary Attributes Of A Good Power System Protection Scheme And Briefly Explain Why They Are Requ 1 (50.07 KiB) Viewed 30 times

a) List three of the necessary attributes of a good power system protection scheme and briefly explain why they are required. [6 marks] b) Protection policies for high voltage transmission networks and low voltage distribution networks are very different. Explain why this is the case and describe the main characteristics of typical transmission and distribution protection systems. [12 marks] c) Explain what is meant by a “Unit Protection Scheme" and describe how it may be employed to protect the circuit shown in Fig. 2. busbar A CB1 CB3 CB5 line 1 line 2 Figure 2 CB4 CB6 busbar B CB2 [12 marks]