they transformer oil leakeage to beather tank and top parts . they protection relayes was not operated.what is the oil leakeage problem.
why we are using panel space heaters in different control schemes????
What is the difference between line drop and percentage line drop?
What does VVVF stands for in VVVF drive ? How does it differ from VVF drive?
avr is an automayic voltage regulator ... it regulates voltage before it synchronise with grid after synchronisation it regulates power factor why....
in 6.6 kv vaccum circuit breaker vaccum bottole vaccum capacity ????
1)Why potential transformer primary site grounded? 2)can be loop between neutral & body for grounding? 3)What is the difference between ELCB &RCCB? 4)Why we use iron core in transformer insted of wooden core? 5)what is the principle of excitation? 6)Why we test the core balance test for transformer? 7)what is creepage?What is the creepage length for insulators at different voltages? 8)How much type of relays used for differential protection of generator,transformer & busbar protection?
how to calculate overall efficiency of diesel generator set? give us a formula with an example.
why transformer cannot rotate though the princplebehind induction motor is similar to a transformer?
Why cpaciter opposes sudden changes in voltage?and how?
How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...
which is best ac or dc
In LT cables 3.5 core cable are available that means 3 core and .5 for neutral Why .5 for neutral and is there any reason for that please suggest thanks and regards pavan kumar