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In which of the following lighting scheme, 60 to 90% of total light flux is thrown upward to the ceiling?
When the plug setting multiplier is 50, the fault current is 2500 A and CT ratio is 250/5, then the current setting will be
Which of the following is not an advantage of Neutral Grounding?
At what value of load angle (δ) does the maximum power transfer in a power system?
Which of the following method is used for the performance calculation of long transmission line?
A 50 Hz, 6-pole turbo-generator rated 120 MVA, 14.5 KV has inertia constant of 20 MJ/MVA. Find stored energy in the rotor at synchronous speed.
The current from neutral to ground connection is 12 A. Calculate the zero phase sequence component current in each phase.
The step angle of the stepper motor is 2.5°. If the stepping frequency is 3600 pulses per second, then the shaft speed will be
𝗕𝗿𝘂𝘀𝗵𝗹𝗲𝘀𝘀 𝗗𝗖 𝗺𝗼𝘁𝗼𝗿:
◈ 𝑨 𝒃𝒓𝒖𝒔𝒉𝒍𝒆𝒔𝒔 𝑫𝑪 𝒎𝒐𝒕𝒐𝒓 𝒊𝒔 𝒂 𝒑𝒆𝒓𝒎𝒂𝒏𝒆𝒏𝒕 𝒎𝒂𝒈𝒏𝒆𝒕 𝒔𝒚𝒏𝒄𝒉𝒓𝒐𝒏𝒐𝒖𝒔 𝒆𝒍𝒆𝒄𝒕𝒓𝒊𝒄 𝒎𝒐𝒕𝒐𝒓 𝒕𝒉𝒂𝒕 𝒊𝒔 𝒅𝒓𝒊𝒗𝒆𝒏 𝒃𝒚 𝒅𝒊𝒓𝒆𝒄𝒕 𝒄𝒖𝒓𝒓𝒆𝒏𝒕 (𝑫𝑪) 𝒆𝒍𝒆𝒄𝒕𝒓𝒊𝒄𝒊𝒕𝒚 𝒂𝒏𝒅 𝒊𝒕 𝒂𝒄𝒄𝒐𝒎𝒑𝒍𝒊𝒔𝒉𝒆𝒔 𝒂𝒏 𝒆𝒍𝒆𝒄𝒕𝒓𝒐𝒏𝒊𝒄𝒂𝒍𝒍𝒚 𝒄𝒐𝒏𝒕𝒓𝒐𝒍𝒍𝒆𝒅 𝒄𝒐𝒎𝒎𝒖𝒕𝒂𝒕𝒊𝒐𝒏 𝒔𝒚𝒔𝒕𝒆𝒎 𝒊𝒏𝒔𝒕𝒆𝒂𝒅 𝒐𝒇 𝒂 𝒎𝒆𝒄𝒉𝒂𝒏𝒊𝒄𝒂𝒍 𝒄𝒐𝒎𝒎𝒖𝒕𝒂𝒕𝒊𝒐𝒏 𝒔𝒚𝒔𝒕𝒆𝒎
◈ 𝑰𝒕 𝒉𝒂𝒔 𝒂 𝒑𝒆𝒓𝒎𝒂𝒏𝒆𝒏𝒕 𝒎𝒂𝒈𝒏𝒆𝒕 𝒓𝒐𝒕𝒐𝒓.
◈ 𝑼𝒏𝒍𝒊𝒌𝒆 𝒄𝒐𝒏𝒗𝒆𝒏𝒕𝒊𝒐𝒏𝒂𝒍 𝒃𝒓𝒖𝒔𝒉𝒆𝒅 𝒕𝒚𝒑𝒆 𝑫𝑪 𝒎𝒐𝒕𝒐𝒓, 𝒘𝒉𝒆𝒓𝒆𝒊𝒏 𝒕𝒉𝒆 𝒃𝒓𝒖𝒔𝒉𝒆𝒔 𝒎𝒂𝒌𝒆 𝒕𝒉𝒆 𝒎𝒆𝒄𝒉𝒂𝒏𝒊𝒄𝒂𝒍 𝒄𝒐𝒏𝒕𝒂𝒄𝒕 𝒘𝒊𝒕𝒉 𝒂 𝒄𝒐𝒎𝒎𝒖𝒕𝒂𝒕𝒐𝒓 𝒐𝒏 𝒕𝒉𝒆 𝒓𝒐𝒕𝒐𝒓 𝒔𝒐 𝒂𝒔 𝒕𝒐 𝒇𝒐𝒓𝒎 𝒂𝒏 𝒆𝒍𝒆𝒄𝒕𝒓𝒊𝒄 𝒑𝒂𝒕𝒉 𝒃𝒆𝒕𝒘𝒆𝒆𝒏 𝒂 𝑫𝑪 𝒆𝒍𝒆𝒄𝒕𝒓𝒊𝒄 𝒔𝒐𝒖𝒓𝒄𝒆 𝒂𝒏𝒅 𝒓𝒐𝒕𝒐𝒓 𝒂𝒓𝒎𝒂𝒕𝒖𝒓𝒆 𝒘𝒊𝒏𝒅𝒊𝒏𝒈𝒔, 𝑩𝑳𝑫𝑪 𝒎𝒐𝒕𝒐𝒓 𝒆𝒎𝒑𝒍𝒐𝒚𝒔 𝒆𝒍𝒆𝒄𝒕𝒓𝒊𝒄𝒂𝒍 𝒄𝒐𝒎𝒎𝒖𝒕𝒂𝒕𝒊𝒐𝒏 𝒘𝒊𝒕𝒉 𝒂 𝒑𝒆𝒓𝒎𝒂𝒏𝒆𝒏𝒕 𝒎𝒂𝒈𝒏𝒆𝒕 𝒓𝒐𝒕𝒐𝒓 𝒂𝒏𝒅 𝒂 𝒔𝒕𝒂𝒕𝒐𝒓 𝒘𝒊𝒕𝒉 𝒂 𝒔𝒆𝒒𝒖𝒆𝒏𝒄𝒆 𝒐𝒇 𝒄𝒐𝒊𝒍𝒔.
◈ 𝑰𝒏 𝒕𝒉𝒊𝒔 𝒎𝒐𝒕𝒐𝒓, 𝒑𝒆𝒓𝒎𝒂𝒏𝒆𝒏𝒕 𝒎𝒂𝒈𝒏𝒆𝒕 (𝒐𝒓 𝒇𝒊𝒆𝒍𝒅 𝒑𝒐𝒍𝒆𝒔) 𝒓𝒐𝒕𝒂𝒕𝒆𝒔 𝒂𝒏𝒅 𝒄𝒖𝒓𝒓𝒆𝒏𝒕-𝒄𝒂𝒓𝒓𝒚𝒊𝒏𝒈 𝒄𝒐𝒏𝒅𝒖𝒄𝒕𝒐𝒓𝒔 𝒂𝒓𝒆 𝒇𝒊𝒙𝒆𝒅.
◈ 𝑻𝒉𝒆 𝒕𝒐𝒓𝒒𝒖𝒆-𝒔𝒑𝒆𝒆𝒅 𝒄𝒉𝒂𝒓𝒂𝒄𝒕𝒆𝒓𝒊𝒔𝒕𝒊𝒄𝒔 𝒐𝒇 𝒕𝒉𝒆 𝑩𝑳𝑫𝑪 𝒎𝒐𝒕𝒐𝒓 𝒂𝒓𝒆 𝒔𝒊𝒎𝒊𝒍𝒂𝒓 𝒕𝒐 𝒕𝒉𝒆 𝑫𝑪 𝒎𝒐𝒕𝒐𝒓.
𝗔𝗱𝘃𝗮𝗻𝘁𝗮𝗴𝗲𝘀:
◈ 𝑩𝒓𝒖𝒔𝒉𝒍𝒆𝒔𝒔 𝒎𝒐𝒕𝒐𝒓𝒔 𝒂𝒓𝒆 𝒎𝒐𝒓𝒆 𝒆𝒇𝒇𝒊𝒄𝒊𝒆𝒏𝒕 𝒃𝒆𝒄𝒂𝒖𝒔𝒆 𝒕𝒉𝒆𝒊𝒓 𝒗𝒆𝒍𝒐𝒄𝒊𝒕𝒚 𝒊𝒔 𝒅𝒆𝒕𝒆𝒓𝒎𝒊𝒏𝒆𝒅 𝒃𝒚 𝒕𝒉𝒆 𝒇𝒓𝒆𝒒𝒖𝒆𝒏𝒄𝒚 𝒂𝒕 𝒘𝒉𝒊𝒄𝒉 𝒕𝒉𝒆 𝒄𝒖𝒓𝒓𝒆𝒏𝒕 𝒊𝒔 𝒔𝒖𝒑𝒑𝒍𝒊𝒆𝒅, 𝒏𝒐𝒕 𝒃𝒚 𝒕𝒉𝒆 𝒗𝒐𝒍𝒕𝒂𝒈𝒆.
◈ 𝑨𝒔 𝒃𝒓𝒖𝒔𝒉𝒆𝒔 𝒂𝒓𝒆 𝒂𝒃𝒔𝒆𝒏𝒕, 𝒕𝒉𝒆 𝒎𝒆𝒄𝒉𝒂𝒏𝒊𝒄𝒂𝒍 𝒆𝒏𝒆𝒓𝒈𝒚 𝒍𝒐𝒔𝒔 𝒅𝒖𝒆 𝒕𝒐 𝒇𝒓𝒊𝒄𝒕𝒊𝒐𝒏 𝒊𝒔 𝒍𝒆𝒔𝒔 𝒘𝒉𝒊𝒄𝒉 𝒆𝒏𝒉𝒂𝒏𝒄𝒆𝒅 𝒕𝒉𝒆 𝒆𝒇𝒇𝒊𝒄𝒊𝒆𝒏𝒄𝒚.
◈ 𝑩𝑳𝑫𝑪 𝒎𝒐𝒕𝒐𝒓 𝒄𝒂𝒏 𝒐𝒑𝒆𝒓𝒂𝒕𝒆 𝒂𝒕 𝒉𝒊𝒈𝒉-𝒔𝒑𝒆𝒆𝒅 𝒖𝒏𝒅𝒆𝒓 𝒂𝒏𝒚 𝒄𝒐𝒏𝒅𝒊𝒕𝒊𝒐𝒏.
◈ 𝑻𝒉𝒆𝒓𝒆 𝒊𝒔 𝒏𝒐 𝒔𝒑𝒂𝒓𝒌𝒊𝒏𝒈 𝒂𝒏𝒅 𝒎𝒖𝒄𝒉 𝒍𝒆𝒔𝒔 𝒏𝒐𝒊𝒔𝒆 𝒅𝒖𝒓𝒊𝒏𝒈 𝒐𝒑𝒆𝒓𝒂𝒕𝒊𝒐𝒏.
◈ 𝑴𝒐𝒓𝒆 𝒆𝒍𝒆𝒄𝒕𝒓𝒐𝒎𝒂𝒈𝒏𝒆𝒕𝒔 𝒄𝒐𝒖𝒍𝒅 𝒃𝒆 𝒖𝒔𝒆𝒅 𝒐𝒏 𝒕𝒉𝒆 𝒔𝒕𝒂𝒕𝒐𝒓 𝒇𝒐𝒓 𝒎𝒐𝒓𝒆 𝒑𝒓𝒆𝒄𝒊𝒔𝒆 𝒄𝒐𝒏𝒕𝒓𝒐𝒍.
◈ 𝑩𝑳𝑫𝑪 𝒎𝒐𝒕𝒐𝒓𝒔 𝒂𝒄𝒄𝒆𝒍𝒆𝒓𝒂𝒕𝒆 𝒂𝒏𝒅 𝒅𝒆𝒄𝒆𝒍𝒆𝒓𝒂𝒕𝒆 𝒆𝒂𝒔𝒊𝒍𝒚 𝒂𝒔 𝒕𝒉𝒆𝒚 𝒂𝒓𝒆 𝒉𝒂𝒗𝒊𝒏𝒈 𝒍𝒐𝒘 𝒓𝒐𝒕𝒐𝒓 𝒊𝒏𝒆𝒓𝒕𝒊𝒂.
◈ 𝑰𝒕 𝒊𝒔 𝒂 𝒉𝒊𝒈𝒉-𝒑𝒆𝒓𝒇𝒐𝒓𝒎𝒂𝒏𝒄𝒆 𝒎𝒐𝒕𝒐𝒓 𝒕𝒉𝒂𝒕 𝒑𝒓𝒐𝒗𝒊𝒅𝒆𝒔 𝒍𝒂𝒓𝒈𝒆 𝒕𝒐𝒓𝒒𝒖𝒆 𝒑𝒆𝒓 𝒄𝒖𝒃𝒊𝒄 𝒊𝒏𝒄𝒉 𝒐𝒗𝒆𝒓 𝒂 𝒗𝒂𝒔𝒕 𝒔𝒑𝒆𝒆𝒅 𝒓𝒂𝒏𝒈𝒆.
◈ 𝑩𝑳𝑫𝑪 𝒎𝒐𝒕𝒐𝒓𝒔 𝒅𝒐 𝒏𝒐𝒕 𝒉𝒂𝒗𝒆 𝒃𝒓𝒖𝒔𝒉𝒆𝒔 𝒘𝒉𝒊𝒄𝒉 𝒎𝒂𝒌𝒆 𝒕𝒉𝒆𝒎 𝒎𝒐𝒓𝒆 𝒓𝒆𝒍𝒊𝒂𝒃𝒍𝒆, 𝒉𝒂𝒗𝒆 𝒉𝒊𝒈𝒉 𝒍𝒊𝒇𝒆 𝒆𝒙𝒑𝒆𝒄𝒕𝒂𝒏𝒄𝒊𝒆𝒔, 𝒂𝒏𝒅 𝒎𝒂𝒊𝒏𝒕𝒆𝒏𝒂𝒏𝒄𝒆-𝒇𝒓𝒆𝒆 𝒐𝒑𝒆𝒓𝒂𝒕𝒊𝒐𝒏.
◈ 𝑻𝒉𝒆𝒓𝒆 𝒂𝒓𝒆 𝒏𝒐 𝒊𝒐𝒏𝒊𝒛𝒊𝒏𝒈 𝒔𝒑𝒂𝒓𝒌𝒔 𝒇𝒓𝒐𝒎 𝒕𝒉𝒆 𝒄𝒐𝒎𝒎𝒖𝒕𝒂𝒕𝒐𝒓, 𝒂𝒏𝒅 𝒆𝒍𝒆𝒄𝒕𝒓𝒐𝒎𝒂𝒈𝒏𝒆𝒕𝒊𝒄 𝒊𝒏𝒕𝒆𝒓𝒇𝒆𝒓𝒆𝒏𝒄𝒆 𝒊𝒔 𝒂𝒍𝒔𝒐 𝒈𝒆𝒕 𝒓𝒆𝒅𝒖𝒄𝒆𝒅.
𝗗𝗶𝘀𝗮𝗱𝘃𝗮𝗻𝘁𝗮𝗴𝗲𝘀:
◈ 𝑩𝑳𝑫𝑪 𝒎𝒐𝒕𝒐𝒓𝒔 𝒄𝒐𝒐𝒍𝒆𝒅 𝒃𝒚 𝒄𝒐𝒏𝒅𝒖𝒄𝒕𝒊𝒐𝒏 𝒂𝒏𝒅 𝒏𝒐 𝒂𝒊𝒓𝒇𝒍𝒐𝒘 𝒂𝒓𝒆 𝒓𝒆𝒒𝒖𝒊𝒓𝒆𝒅 𝒇𝒐𝒓 𝒊𝒏𝒔𝒊𝒅𝒆 𝒄𝒐𝒐𝒍𝒊𝒏𝒈.
◈ 𝑩𝑳𝑫𝑪 𝒎𝒐𝒕𝒐𝒓𝒔 𝒂𝒓𝒆 𝒎𝒐𝒓𝒆 𝒆𝒙𝒑𝒆𝒏𝒔𝒊𝒗𝒆 𝒕𝒉𝒂𝒏 𝒃𝒓𝒖𝒔𝒉𝒆𝒅 𝑫𝑪 𝒎𝒐𝒕𝒐𝒓𝒔.
◈ 𝑻𝒉𝒆 𝒍𝒊𝒎𝒊𝒕𝒆𝒅 𝒉𝒊𝒈𝒉 𝒑𝒐𝒘𝒆𝒓 𝒄𝒐𝒖𝒍𝒅 𝒃𝒆 𝒔𝒖𝒑𝒑𝒍𝒊𝒆𝒅 𝒕𝒐 𝒕𝒉𝒆 𝑩𝑳𝑫𝑪 𝒎𝒐𝒕𝒐𝒓, 𝒐𝒕𝒉𝒆𝒓𝒘𝒊𝒔𝒆, 𝒕𝒐𝒐 𝒎𝒖𝒄𝒉 𝒉𝒆𝒂𝒕 𝒘𝒆𝒂𝒌𝒆𝒏𝒔 𝒕𝒉𝒆 𝒎𝒂𝒈𝒏𝒆𝒕𝒔 𝒂𝒏𝒅 𝒕𝒉𝒆 𝒊𝒏𝒔𝒖𝒍𝒂𝒕𝒊𝒐𝒏 𝒐𝒇 𝒘𝒊𝒏𝒅𝒊𝒏𝒈 𝒎𝒂𝒚 𝒈𝒆𝒕 𝒅𝒂𝒎𝒂𝒈𝒆𝒅.
