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In legging current reactive power is arise but in leading current which power will be arise ? and in this case, is active power more than rated ?
3 5320I Have 100Ah battery with 650VA Inverter, i WANT TO TAKE a Solar panel to charge my battery, so please suggest me,what rating of solar panel(with solar charge controller) can buy for a load of 450w for 4 hours
1 5503A synchronous motor is operating at a leading power factor .if the applied voltage is decreases ,(the excitation remains constant ) ,the motor current a)increases b) decreases c)remains same d) none of these
2 3957DEAR ALL I have motors ( 10 units )each one is 90kw 380V 50 HZ 1000rpm but new local pwer is 220v 60 hz requierd rpm should be 1000 pleas what the beast solution is used frequncy converter or rewinding all motos or chang all motors thanks
GE,
6 80611. Can a 12v DC choke operate a 60v/12w PL lamp ? 2. Can a 230v ballast fire / operate a 60v/12w PL lamps.
2153why battery dc voltage become Half when we check with respect to ground for example 120volts + and - terminals and when we check + terminal with Earth thats 60volts why 60volts same result on 24Volts and with ground 12Volts only expert answer that thanks we can not ground the battery.
2 5102In a incandescent bulb, if the glass is punctured, and then power is supplied, the tungsten filament blows up with a flash.Why?
2 5175Post New Electrical Engineering Questions
How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?
Explain Energy and Power signals?
various transmission tower like .,D tower ,K.C.O tower ,C.C.O tower,K.C.R tower ,C.C.R tower ,H.C.O tower in different tons.
why the carbon brushes are broken in srim while the motor runningtime
plz tel me syllabus and exam date 4 jr executive engg (electrical)
What is the most essential condition for the voltage build up for a d.c. Shunt generator?
Is a contactor (or master relay) required between incoming lines and a VFD? The question goes to safety. If a contactor were used before the VFD and an e-stop engaged then the motor will coast to a stop (i.e. VFD loses power) instead of stopping much faster if the VFD braking fucntion were used. It would make more sense to keep power on the VFD.
How can you calculate the size of the down conductor cable for the lightning protection system. Is 70mm2 cable can replace 95mm 2 bare copper cable when the copper tape size is 25Wx3 thk mm.
What is pole of the system?
Is there a standard depth of gravel fill in Substation Switchyard? Please give a design/drawing. Thank you.
What is evaporator & condencer & compressor
Why use in ht motore
a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.
what is the need to express current and voltage in rms value? rms value is also called as effective value,what is effective value?
What is difference between insulating medium and fault current interruption medium in a switching device.
