In DC while we mention the voltage we are using -48V but in case of AC we mention only 230V not -230V, why we using -48V not 48V

2 Answers  

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what is effect of unbalaced load -- say R 15A, Y 25A, B 10A

4 Answers   TransWorks,

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what is the relation between reactive power and power factor for the what is the limit of reactive power and power factor

0 Answers  

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Hi.I want to ask how to calculate contactor rating current? for example I have 460 V , 100 A (induction motor) calculate contactor rating current?

2 Answers  

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A mass of 1200g is accelerated at 200 cm/s2by a force. The value of the force required is:(a) 2.4N(b) 2400N(c) 240 kN(d) 0.24N

0 Answers  

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what is ignition?

1 Answers  

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why the the phase transformer's nuetral has been grounded

2 Answers  

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is emf is indued if dc is passed through coil

5 Answers  

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what is physical distance of isolator to VCB in 33/11kv sub stations

0 Answers   Enercon,

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132/6.6𝚔𝚟 𝚝𝚛𝚊𝚗𝚜𝚏𝚘𝚛𝚖𝚎𝚛 𝚗𝚎𝚞𝚝𝚛𝚊𝚕 𝚑𝚊𝚜 𝚘𝚗𝚎 𝚎𝚊𝚛𝚝𝚑 𝚙𝚒𝚝 𝚍𝚎𝚍𝚒𝚌𝚊𝚝𝚎𝚍. 𝙸'𝚟𝚎 𝚊𝚗𝚘𝚝𝚑𝚎𝚛 𝚝𝚛𝚊𝚗𝚜𝚏𝚘𝚛𝚖𝚎𝚛 𝚘𝚏 6.6𝚔𝚟/415𝚟 𝚌𝚊𝚗 𝙸 𝚌𝚘𝚗𝚗𝚎𝚌𝚝 𝚗𝚎𝚞𝚝𝚛𝚊𝚕 𝚝𝚘 𝚜𝚊𝚖𝚎 𝚎𝚊𝚛𝚝𝚑 𝚙𝚒𝚝 𝚊𝚜 𝚘𝚏 13/6.𝚔𝚟 𝚝𝚛𝚊𝚗𝚜𝚏𝚘𝚛𝚖𝚎𝚛?? 𝙸𝚏 𝙽𝚘.. 𝚃𝚑𝚎𝚗 𝚠𝚑𝚢??

0 Answers  

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with out colour codeing on conductor how can be find what is r,what is b,what is y phases.....

0 Answers   Divis Laboratories,

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How can ignition voltage of light increased with the help of a ballast

1 Answers  

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