adspace
Wat wil happen if Transformer is operated at 100 HZ
Frequency?
Answer Posted / muthuraj
The flux decreases only when voltage is kept constant and
frequency is increased. To keep the flux constant,
transformer draws more magnetising current. Further,
magnetic loss increases.
| Is This Answer Correct ? | 0 Yes | 1 No |
Post New Answer View All Answers
please send the last 5 years {{{JUNIOR ENGINEER - ELECTICAL, ELECTRONICS RRB CHENNAI and secundrabad}}} TECHNICAL question papers TO MY EMAIL ID dinesh100701@gmail.com
Is there a standard depth of gravel fill in Substation Switchyard? Please give a design/drawing. Thank you.
Diagram and details of polarity test for Current Transformer 11kv 400/200/100/1A
I NEED RRB SYLABUS FOR JE ELECTRICAL ,PLEASE SEND TO MY E- MAIL ID joo28_eee@yahoo.co.in
as a electrical student why should i hire you?
Q.1:What protection will be used on HT and LT side of 33/0.4 KV, MVA transformer. Indicate capacities of protective device to be used. Q.2:Which types of back-up protections are used in the power transformers? What do you understand by the term over travel in the relay? Q.3:How star and delta connected winding transformer are provided from earth fault
what will happen if synchronous machine rotor fed from single phase ac supply
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
Can anybody post questions asked in Engineers India Limited Interview? Thanks in advance.
i want bhel placement paper for electrical if anybody having pl send to my id kavitha867@myway.com immediately
two way ckt diagram can be drawn by how many ways? give diagram
what is a reactive power? what is the relation with power factor?
hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E
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.
PLZ sent the previous year question paper for GET in NHPC on my EMail id ppshanker@gmail.com