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we have require a Motor (1500kW, 6.6kV, 50Hz) which shall operate at 1500rpm during 30min and after it shall run on 500rpm during 15min. The same cycle shall be repetitive during the whole working days. Which method is best and economic to achieve such type of task. VFD, VVFD, Pole changing motor etc.
MTN,
1484when liquid stored in spherical vessel,equilibrium shift towards liquid.what is the benefit of it?
1 3557Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only.
12 36911
why do we put a transformer on soak before loading it
Define mobility of a carrier. Show that the mobility constant of electron is larger than that of a hole.
If any HVDC line is going with positive & negative(the negative usually have return path of current with earthing electrode). Now the question is if this HVDC earthed electrode which is using as return path and earthed any nearby 400kv or 220kv AC substation equipments. which will be the impact of this on AC substation & its equipment, how severe may be this and what should be the minimum distance require between HVDC earthed electrode and AC substation equipments? It's really an high engineering level question...Dare to answer and increase your knowledge.
how to use two diffirent gatway in one system
how pressure transmitter work, what is its principal to measure and how its generate signal. for pressure transmitterinstallation which precautions must be taken ??
Which type of DG need Netral Earthing?
what is the dome assembly
what is effect of 5amp fuse on 2mva pry protection of transformer
Can anybody just suggest about the scope of Electrical design with ETAP software?Just guide me?
What is meant by gear ratio?
What is difference between code and standard and specification?
Which is stronger, tungsten or titanium?
what is the calibration procedure for magnetic flow meter @ onsite
please explain to me how to calculate current,voltage,resistance with formula??
Does all the output contacts (N/O as well as N/C) of a Numerical relay operate when relay receives a binary input/inputs or contacts are designated to specific logic input/inputs and only these contacts operate?
