how to set the overload setting in the thermal overload relay?? is there any calculation in that??

3 Answers  

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why do we use magnetic contactors ?circuit breakers are not enough?

5 Answers  

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can HT cable or HT bare conductor used for LT line? is yes what would be the current rating?

2 Answers   ACC, wbsedcl,

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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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what is ATS & RING MAIN UNIT in Distribution System?And its Function.

0 Answers  

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how air lock will be removed from generators, how it happens?

1 Answers   ABC Engineering,

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Why all voltage level are multiples of 11, like 220V, 440V, 1100V instead of 200V, 400V, 1000V?

9 Answers   Indian School of Mines,

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what is the difference between thyristors and capacitors

2 Answers   DRDO, ETE,

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dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.

0 Answers  

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Why does an induction generator is preffered as compared to synchronous generator in especially a wind energy power production project?

0 Answers  

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what happan when ac power transmitted in unity power factor

12 Answers   JE, Maihar Cement,

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what is volt drop formula?stm

1 Answers  

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