Answer Posted / mahesh bial airport
Transformer testing is mainly two type because calculating
the losses of transformer 1) open circuit test 2) short
circuit test. In opencircuit test showing hystorisys
loss ,eddy current loss ( magnetic loss ). In short circuit
test showing copper loss of the transformer
Is This Answer Correct ? | 19 Yes | 0 No |
Post New Answer View All Answers
DRAW ACIRCUIT DIAGRAM OF 100 KVA 415V/55-0-55V DELTA TO STAR TRANSFORMER
If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?
there are cam operated switches - why we call cam operated , What is cam ?
What is the use of Surge Capacitor in LAVT?
Usage of flywheel diode in relays
How to maintain ac plant?
What is meant by full pitched winding?
define the non synchoronism of synchoronous machine in general g or m??
where can the transformer having vector group Yny0 be used??
why does a dc machine has high efficiency while working as a generator than as a motor ..
How can claculate to attain the desired PF in the line ( HOW Much KVAR is required ) Pls Give the formula? Equate Petrochemical 0 1 how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec. 0 1 What will happened. if we feed 3phase supplay to the stater with out insert the rotor. How much current will flow through the stater winnding? Equate Petrochemical 0 1 What is required of exietation to the alternater. 0 1 why star point of HT motor not earthed? Equate Petrochemical 0 1 Why we are getting low voltage in star connection? Equate Petrochemical 0 2 What's ND relay & it's functions? Equate Petrochemical 0 2 How instantanious short circuit current is calculated? its formula? Equate Petrochemical 0 2 What is servo Motor? What's the advantages of this motor over Induction motor? Equate Petrochemical 0 2 What is core CT & it's function? Equate Petrochemical 0 3 what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY L & T 0 4 What is required of exietation to the alternater. KNB 1 23 what is the design voltage for 6.6KV 2000 KVAR HT capacitor? Consultancy 0 3 Pls explain about vfd control?Where it is used, Give some example? siemens 1 22 Please explain me abt PQ diagaram in the power sector. 0 9
Mention what are the types of semi-conductors?
advantages and disadvantages of inverse definite minimum time RELAY
Why can't we parallel Voltage transformer secondary circuits?
How generator NPS(NEGATIVE PHASE SEQUENCE TEST)TEST WAS DONE? PROCEDURE WITH DETAILS?