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Can any one know what are the symbols at the down (below) the analog ammeter??? there are 4 symbols which are they ?????
1 1993how the capacitance is caluclated if the load is varying to keep the power factor constant(above0.95)
1 3792what will happen if the field and armature both are made to rotate in a synchronous machine ?
4 6620Can Superposition theorem be applied to AC Circuits?Can Thevenin's Theorem be applied to AC Circuit too?
6 21743pls tell me about ups internal connection & we have given only 3 phase supply to ups system how get 4 wire (R Y B N )
1 2838which is the most advanced form of SF6 BREAKER?Can we use other gases to quench the arc?
TATA,
1 2129WHATS THE DIFFERENCE IN USING THE 125% AND THE 250% FACTOR OF SAFETY IN CALCULATING CIRCUIT BREAKERS CAPACITY IN MOTOR APPLICATION??
2053if neutral earthing is weak of a system then how can we improve it ? Technically explanation ??
1 5195Can any one help me how to set an overload set the range from 2.8A to 4A , rated motor current 22A, CT 60/5A
2 4756how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?
1 1919Post New Electrical Engineering Questions
1- XC and the RC time constant are both measures of the reaction of C to a change in ____? 2-The power factor is a numerical ratio with a value between 0 and 1 equal to the ______________ of the phase angle. 3-When V and I are out of phase because of reactance, the product of V times I is called ______________ power 4-For _____________ inductors, the branch currents can be added algebraically. 5- The ______________ power in watts can be calculated as I^2R 6-Calculate XL with L = 30mH and f = 1kHz ( I have Xl=2piFL 2*3.141592653*1kHz*30mH =188 ohms Please check) 7-A parallel RL circuit has the values, R = 5kohms, XL = 5kohms. A voltage source of Vt = 10Vrms is connected in parallel to R and L. Determine the total current, It delivered by the voltage source Vt. 8-A series RC circuit has R = 1Mohm and C = 1microF. How long would it take for the capacitor to fully discharge if it is initially fully charged? 9-A circuit has real power = 300W and an apparent power of 500VA. Determine the power factor and phase angle. 10-The time constant for an LR series circuit is T = 0.1s and R = 10ohms. Calculate the inductance L.
sir i want previous entrance exam papers for written test
plese send me the oces/dgfs sylabus and previous year question pattern of electrical engg.?
what is meant by IGBT how they differ from tyristor ?
what is thermal resistance of PVC Cable.
1. for eg, capacitor is used for many purposes(it act as filter, oscillator, bypass capacitor, memory storage etc...) 2. Please tell me some example circuits for different uses of capacitor( whenever and whereever and however we used capacitor as a filter, oscillator tuning etc..) 3. similarly for inductor and resistors(it act as what?) and when and how we want to act as like that?, and how we can used these components depends upon our requirments with example circuits and explanation? design to act as these components depends
Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0
i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400
If not into production, how far did you follow the design and why did not you see it into production?
sir please send me iocl written test paper in my e-mail account. i'll be obliged to you........ thank u roshan
Yazaki india pvt ltd interview questions qurey related
PLS SEND THE RRB CHENNAI MODEL QUESTION PAPER my email id is ganesan98655@rediffmail.com
please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com
Can you used moeller lzm1 mccb in a dc system with 125vdc and 20ka short circuit current , beside is it have 24 or 48 volt shunt ? Beside how long current can through from An MCB shunt contacts? (like Z7-AS 24 V)?
please send previous exams question papers
