Transformer's core is made up of which material and why so?
Answer Posted / vikramsenareddy
crgo is used as core in transformers to reduce iron and
frequency losses. but now a days Ampourpose is using as a
core. b'coz its thickness is very less compared to crgo and
core losses also compared to less. but little more costly.
Is This Answer Correct ? | 20 Yes | 1 No |
Post New Answer View All Answers
What are the types of excitation system?
what is per unit calculation?looking for simple and strong explanation thk u
Dear all, I just want to ask an expert on this forum for some insights. For the magnetic balance test, when applied voltage on a Delta-Star transformer e.g. Dyn11, the following relationships apply for HV side: 1. H1-H2 = H2-H3 H3-H1 2. H2-H3 = H3-H1 H1-H2 3. H3-H1 = H1-H2 H2-H3 For the LV side also: 4. X1-X0 = X2-X0 X3-X0 5. X2-X0 = X3-X0 X1-X0 6. X3-X0 = X1-X0 X2-X0 Is there a similar pattern for Y-d, Y-Y, D-d? And how about Y-z, D-z, Z-y transformers? I've tested a YNzn5 transformer and for LV side I don't see the pattern. In this particular case I got for LV side the following (see values below): H1-H0 H2-H0 H3-H0 X0-X1 X0-X2 X0-X3 128.0 119.9 7.2 29.2 13.3 15.8 70.7 128.4 59.2 23.4 22.0 3.6 7.2 120.1 128.1 13.4 29.3 15.8 What is the relationship here for LV? For row 1 I see the relationship, for row 3 I also see but it's shifted, but for row 2 I don't see such relationship. Any suggestions, answers, someone?
if a.c supply is given to the motor,, what happen?
What are stable systems?
Difference between On Line capacitor and Station Type capacitor.
An ELHNC 80amp 240v 30mA RCD is tripping periodically, every 30 - 180 seconds is it safe to disconnect the protection circuit?
why dc is used in control circuits for MV & LV switchgeras instead of ac
how to find ratio of CT & PT in 66/11kv 12 mva supply system ? explain with calculation.
If any cable burnt how can we identify it burnt by high current of high voltage?
who invented active elements? plz give me the complte details of active elements...
what is the calculation formula for motor starting torque,running torque, running torque.
how to determine ct ratio in ht vcb?
Give the expression for the frequency of oscillations in an op-amp sine wave oscillator?
in 6.6 kv vaccum circuit breaker vaccum bottole vaccum capacity ????