What is the minimum value of hfe for the oscillations in transistorized rc phase shift oscillator?
what is meant by frequency ?
How to check phase R,Y,B
what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????
How to know motor winding is star or delta connected without see the information table and winding connection ?
what is power system.........?
How will change the frequency in distribution side?
Why a motor blower cobination draw more current at winter than summer?
when u are given a timer,push buttons and contactor, how do i practically make a star delta control circuit and a direct online control circuit?
How can I calculate the trnaformer effciency at different loading condition?
In our factory there is one no. of Series trip HT 6KV OCB. 1. Is it possible to measure CT out put current by 440V Clamp meter? The measurement is required for knowing the exact value of current in CT secondary to set up protection for transformers. 2. plase forward the single line diagram of AMF panel?
HOW TO CALCULATE EACH PHASE CURRENT WHILE A MOTOR CONNECTED TO STAR- DELTA STARTER?
why is the number of turns different in current and potential coils of wattmeter..?