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What is a digital substation?
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What components are typically found in a substation?

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What is the purpose of a human-machine interface (HMI) in substation control systems?

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How does a firewall protect substation communication networks?

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What is the purpose of a precision time protocol (PTP) in substation automation?

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Explain the concept of time synchronization in substation automation.

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How does an intelligent electronic device (IED) work in substation automation?

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What is the difference between centralized and decentralized substation architecture?

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Explain the concept of interoperability in substation automation systems.

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How does role-based access control work in substation automation systems?

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Explain the concept of IEC 61850 in substation automation.

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What is the first equipment of the substation connected to the incoming transmission line?

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What are the different electrical clearances in Substation?

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What are different Bus bar materials used in Substation?

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State significance of earthing. Draw and explain pipe earthing. State the values of earth resistances for: (i) Substation (ii) Residential wiring (iii) H.T. Line (iv) L.T. Line.

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State the condition for selecting site for distribution substation.

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Draw the symbols and state their function of components used in substation (any six).

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Draw the single line diagram (layout) of 33/11 kV substation.

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State the classification of distribution substation.

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