power formula
What are the uses of stepper motor?
why AC signals are represented by sinusoidal waveform?WHY other waveforms not used for representation
Any one can explain if there is any harm from humming noise heard from air circuit breaker : we have 415 switch board having two incomers from transformers 3.3KV/415V , when bus coupler closed, and open one ACB incomer to work in one of the transformers, the current started hunting around 50 Amps, and heard humming noise from the air circuit breaker, although the load current was only 1200 amps while the ACB capacity is 2500 Amps, and the transformer 1600 KVA. The same didn't happen when taken the other transformer offline. Why this humming noise and current fluctuation? is there any implication or danger, bearing in mind that we just returned everything back to normal and stopped the maintenance of the transformer. Shall we go ahead and ignore this noise?
Why RCD trips on connecting to one Socket but not trips one other circuit on same RCD.
How vaccum is formed to create a vaccum interrupter or anything related with vaccum?
What you have to see in transformer after week, month?
what is meant by auto transformer?
how to Select its CORE in electrical cables based on its applications? or Application of various types of electrical cable based on it CORE?
why we used servo motor insted of inducation motor?
If the load of transformer is getting more than its rating,,,than how to overcome this problem? Suppose thee rating of transformer is 315kva and the load is going beyond than the rating say around load: 352kva... Than how can we solve this problem without deducting the load.
What is encoder, how it function
in dc shunt motor if field winding is shorted then