Answer / abiodun ogunnaike

The purpose of earth electrode is to induce a return energy or current through external body via the ground. this to ensure no damage occur to the appliances during high current surge or short circuit reaction.

advantage of using 110v than 230v

1 Answers   NTPC,

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Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more

3 Answers  

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can we apply kirchhoff's laws to circuits containing non linear elements?

3 Answers   Metro,

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what is the power factor?please tell me uses.

5 Answers   NTPC,

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we use 3 phase supply for induction motor why not use two phase supply .

4 Answers   TLC,

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can we run the home fan both clock and anticlockwise direction

1 Answers  

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100 MVA 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase. what will be the fault MVA of generator.

0 Answers  

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In CTs tan delta point should be earthed , what is the reason behind it?

0 Answers  

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I have a question, I visit 01 site and face a problem, there is 2.5 ton Air Con working, when air con compressor is running at that time rectifier voltages are increasing upto 290-295 v and rectifier is giving main high alarm (rectifier is APC single phase), before starting compressor rectifier voltages was 230v. when air con is going off rectifier voltages are decreasing smoothly at its actual voltages 230v. Load on Genset phases is this: Red-13.5 amp AC (Air Con load), Yellow-1.7 amp AC (BTS lights etc.) and Blew-4 amp AC (telecom system load), Genset phase to phase and neutral to phase voltages are also ok. These are 10 sites having same system and same rectifier APC brand at every site 02 genset are working but the problem is same at all these 10 sites. What will be the reason behind???

1 Answers  

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Transformer Specification say 66/11KV, 23/27/35MVA OFDAN,what is OFDAN? we know ONAN,ONAF or OFAF

2 Answers   Siemens,

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what is the working principle of soft-starter & how it diff. from VFD ?????????

5 Answers   L&T,

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if an induction motor is operated at unity power factor what will happen? will motor run or not? kindly describe a logical answer?

2 Answers  

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