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can i use 4 number of circuit breaker as single phase manual change over switch? if yes then how plz also send ckt diagram at nazimzamurad@gmail.com
2129What happened when we give 2 phase supply to a 1 phase equimpent. It's effect on equipment's efficiency and life?
5 8340what is the Mechanism of energy saver FAN how average power,reactive power, power factor e.t.c realated to it and how it apply to this FAN .and how this fan save energy w.r.t circuit analysis,plz repaly to this question this is the assignment to given to me.thanks
1 3325A Generator is in running condition and Rotor earth fault alarm is coming.How to check on line(i.e in running condition) whether there is actual earth fault in rotor or not.
1956Do power transformers have an Automatic Voltage Regulator (AVR) just like the alternator/generator in a power system?
4 7140Post New Electrical Engineering Questions
why and how current drawn by battery charger depends upon the altitude where it is located?
Can we put 3 layers of cable tray while installing tray
What do you mean by lighting transformer?
Can we use Ccapacitive voltage transformer directly for metering purpose?
In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?
DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.
how to select electrical equipment such as fuse,dg,transformer,motor,msb,wire,cable as per the connecting load..please mention any books to design,take licence
what is mean by dry frequency
What is the typical enclosure type used for Indoor switchgear / Outdoor switchgear Units? - In Onshore / offshore Units?
In synchronization circuit what is the function of Interposing voltage transformer(IVT)and Reverse voltage transformer(RVT)
WHAT ARE THE CHARACTERISTICS OF AN VOLTAG AMPLIFIER
My question is whether bellow formula is correct to find bus size for 46kA for 0.5 second & what is RT in bellow formula. formula to calculate the size of busbar to withstand the thermal stresses due to currents with duration of 0.2 sec to 5 sec. Sp = RT( I x I x t) / K Where Sp – is the cross sectional area of bus bar in millimeters. I - is the value of AC fault current. t - is the operating time of disconnecting device in seconds. K – is the factor depending on the material of the conductor, insulation and initial and final temperature. Value of ‘k’ for copper is 143.
ELECTRICAL DRIVES: can a motor load system with passive load torque can have equilibrium speed in second quadrant
i have applied for junior engineer 2 c&w for Guwahati RRB please send me last five year question paper
if voltage bt phase & nutral is 38v in a panel board . whats the root cause.
