what is the generation action and motoring action?

3 Answers  

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what is the pi test for current transformer?

1 Answers  

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give me battery AH calculation in U P S

1 Answers  

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What is trickle charging system?

2 Answers   Absotherm,

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how can we calculate the ampacity of the electrical wire/cable. and what are the factors must be considered. pls. elaborate.

0 Answers   Webel,

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What is the resonant peak?

0 Answers  

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can anyone help me regarding bout Electrical designs and calculations .. which text book should i follow as i am a trainee engineer.Description of my work which is Electrical designs like cable sizing, lighting, lightning, Gensets sizing, motor sizing, transformer sizing, generator sizing, circuit breakers, PDB MCC PCC SLDB MLDB panels, Single line diagrams mainly, substation desings, cable routing and layouts, reactive power compensations, power factor improvement, voltage drop calculations, power generations, power transmission, power distributions all calculations.Please help me

3 Answers  

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star delta starter single line digram

1 Answers  

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why VCB always installed only at HT yards or HT side? suppose if ACB installed at there means, what will be problem?

1 Answers  

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What is the permissible maximum flux density in transformer core?

0 Answers  

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What is the major differences between RCCB & ELCB? If we use ELCB of less sensitivity why does it trip often and can we control it from tripping?

1 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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