Answer Posted / rama maddileti
Transformer is a static electrical device witch transfer
electrical energy from one circuit to another circuit
without changing frequency but change the voltage and
current. secondary turns of transformer is higher than
primary turns that transformer is called step up transformer.
secondary turns of transformer is lower than primary turns
that transformer is called step down transformer.
| Is This Answer Correct ? | 3 Yes | 0 No |
Post New Answer View All Answers
Define gain margin?
How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?
what is earth-fault?when it occurs? to check where it occurs what type of test should we do?
Why water bubbles when D.C. Current is passed through it? Why not when A.C. Current is passed?
hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /
how can we determine size of a cable by knowing the kw or current rating of a load?how can we calculate the resistance box of a slip ring motor?
Hello Friends, How can we recognize the CT Star Point is S1 or S2 in case of Electro Mechanical Relays and what is meant by Restraining coil in relays and what is the purpose of that.. thank you in advance..
Is there any guideline say about display of earthing value near to earth pit
how point on wave controller works.
Define sensitivity?
Classify milling machines.
ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]
Why in metering Ct for ammeters ct secondary side is grounded for each Ct but not in case of CBCT (Core balance current transformer)..kindly some1 highlights the reason..is it because net flux is zero?
How does a battary stores charge in it? please explain in simple manner and in detail.thanks
why we use copper earthing for neutral while for body GI.
