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If a manufacturer decribes a power supply transformer as providing a secondary voltage of 24 volts when connected to a 240 volts supply, do you think they are refering to the full load or no load secondary voltage?
3 5235hi,every one, i have to write the search paper on "performance policy optimization" of NGN (next generation networks). i need the material on this topic. can any body help me. please tell me any useful site where the good material is available and name of any reference book. it should be a great help for me.
18881.what is bus cuplour and main funtions. 2.what is main function of alternator. 3.how many types of dg oils.
Bhel,
11 46164what is the essential resistance of r y b phase short citcuit ? Eg in star connection we doing this kind of short circuit oly
2223Post New Electrical Engineering Questions
can i connect the two phases of scott connected transformer,if not why?
Why is ignitor used in sodium vapour lamp
How do i right a ladder diagram that has 1 actuator that performs a full stroke followed by a half stroke
operation of protection relay watchdog contact?
What will be result if we connect LT votage to the terminal of HT motor?
Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?
how are reversing the direction of rotation of dc motor
what is servo motor and how it works?
how to carry out Magnetizing Current Test on Distribution transformer and what purpose we are doing this test. why transformer rating in always in KVA ? what ispositive, negative, zero sequence impedence? How ElCB tripping if Neutral touch with ground Why AC & DC capacitor are use in UPS ? why motor rating in KW? how to syncronize two dg sets
Define what is power quality meter ?
hi Is there any possibilities to find out the rotation of a shaft or something else by using electromagnectic waves or by IR rays.If s then can v change the dir., of rotation of the same by remotely?& how? plz dn't any1 say "NO r CAN'T"
7- What is the Dissipation Factor and the difference between it and Insulation Resistance Test? 8- What is the task (function) of DC and AC reactors in power plant? 9- What is the task (function) of (open delta with earthed) in some types in transformers? 10- What is the base of the selection of the vector group in transformers? 11- What is the zig-zag transformer and its function by drawing in large detail? 12- What is the polarity ? 13- Why we make short between phase(R) in high side and phase (r) in low side in vector group test? Where High Side ( R ,S and T ) and Low Side ( r ,s and t ). 14- What are the time on delay and time off delay? 15- What is the vector group? 15- What is the task (function) of different types of vector group such as Dyn11 , Dd0 , YNd1,……..,?
how to modify DOL control panel into Delta Y connection?
Why colled 440V to 3-phase supply.
how can calculate resistance box for 15 kw, 6 pole, RV-230, RA-42 motor
