Hi I am an Electrical engineer.Dont worry about me.Thanks of SQLit. My english is not fluent.
7 Questions:
1) In zigzag arrangement of street lighting poles if the lamps are 400Watt the distances between poles are 45 meter , but 45 Meter between two poles in same side or between two poles in different sides ?
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2) Is the HVAC system , necessary for M.C.C ( Motor Control Center ) panels room ? ( only MCC & switchgears , not control panels or any PLC ) is this necessary for capacitor panels ? ( Room with HVAC system and airlock doors).Where is the usual place of MCC panels if the control room is separate from switchgear room?
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3) Where is the exact location of protection relays in a site ? (400v-3300v-66kv) How much is the bulk of them ?
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4) Whats the kind of cables between protection relays ? How much core and pairs have them? Where is the routing of them ? in same ducts of power cables or ducts of control cables? Whats the voltage and A of them ?
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5) Preparing of the logical single line ( One line) between relays is the task of electrical department or instrument department ? Can you send me an example?
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6) In a site we want to carry a 3300 v ( 1.2 MVA ) power between two building, can we use Air line or we should use cable trench ?
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7) the capsulated SF6 cables is fabricated in 12Meter sections.can we cut them to smaller parts?
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