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can anyone pls expain me about how can we design a cable tray??suppose if have to draw a 3 nos of 50 sqmm AYFY and 2 nos of 35 SQmm of AYFY cable through the tray..how can we design the tray size?? regards...
3 6381if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?
1 2636I have 2 transformers in two different plants, both are without OLTC but i am facing problem of voltage fluctuation at LV side from only one transformer. i have to change its taps manually twice in a day. Another transformer delivering voltage is ok. Please guide me about the problem
1 4520How many energy meters can be connected on a 15VA Voltage transformer. please send a calculation sheet.
1 2030when we design electrical schemes of 11/.415kv distribution..wen and were should we show the relays??what is the function of it?for example..we place EFR Relay CT between transformer neutral link and transformer earth.Like this what are the other type of relays we should use?why?where?Explain please..Thank you
ETA,
1 1892How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"
1 1952Post New Electrical Engineering Questions
if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.
ANY ONE TELL ME ABOUT generator synchronization panel panel to synchronise 3 gen of 250kva both automatic and manual. 2 gen output vol 415 3ph, 1 gen output vol 400 3ph SEND THE DETAILS DIAGRAM ON THIS EMAIL ADDRESS ayazleo@hotmail.com as soon as possilble best ragrds electrical engineer ayaz mahmood SAUDI TECH
sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com
sir please send me previous year questions of jspl of electrical section through which i could prepare myself fpr the test.
If not into production, how far did you follow the design and why did not you see it into production?
please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com
How can we calculate the motor frame sizes?
How to calculate the sag on transmission Lines.
A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.
What are the different methodes for calculating the short circuit Current?
# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in
What was your role in the silicon evaluation/product ramp? What tools did you use?
I am shobana from Chennai. I am having my personal interview on 19th Dec at Chennai.kindly mail me the questions to mail id shobana.shanthi@gmail.com
where can i get vijaya electricals limited in hyderabad interview auestions can u give me the website address plz
What will happened if the neutral of the (star connected secondry) Xformer disconnected? (if its Above KVA rated one)
