upto how much low RPM we will run the commercial motor which is run through VFD without any problem occurs in motor.Motor rating Duty is S1 & RPM is 1400.

0 Answers   ABC,

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What are the Safety measures in central chiller plant? Explain them?

22 Answers   Carrier, CPIC, HSL, JLL,

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how to calculate Transformer loss?

1 Answers  

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A 3PH MOTOR RUNNING IN NORMAL CONDITION AND ITS AMPERE ALSO UNDER ITS FULL LOAD CURRENT,ITS CABLE RATINGS ALSO HIGER THN ITS CAPACITY,BUT ITS CABLE GETTING ABNORMAL HEAT(NOT TOO HOT)WHY ITS GETTING HOT LIK THIS?

5 Answers  

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Where is 2 phase supply used commercially?

3 Answers   NTPC,

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11 kv input, 66 kv input advantages

0 Answers  

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Why do we apply both Differential and REF (HV and LV) protection schemes on YNyn configuration of a transformer?

0 Answers   WCC,

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How check electrical motor winding.

4 Answers   DRJ ARDE,

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Explain the terms real power, apparent power and reactive power for ac circuits and also the units used.

0 Answers  

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can we use inductor in case of d.c.,if yes then what will happen in circuit

3 Answers   JSW,

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The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?

0 Answers  

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Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com

0 Answers  

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