What is the difference between AC and DC injection methods
for rotor earth fault protection
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what r PID controllers?why they r used?what is there purpose?plz Explain in detail
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We use ungrounded DC system (220V/110V) for control and protection system in substations etc. Suppose we have long 2 core DC cables running from our DCDB in control room to the load (length of around 2 to 3 km). Do we need to protect these long DC cables from earth leakages or not? If yes how?
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how the inductor will work on dc supply?whether it will work or not?
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