what is formula in determining the size of Circuit Breaker
for transformer with the following specifications. 7 units
of 1600 volts (primary) and 400 volts (secondary). Both
Primary and Secondary will have a circuit breaker which is
SF6. What should be the Switchgear Main Breaker Size anf
the sizes of each brances Circuit Breaker for Primary.
I need to compare the energy consumption of an industrial machine before and after improving. Shall I compare the apparent power or the active power? I know usually factories use compensated capacitors (or other similar components) to compensate the reactive power, so if I use the apparent power, it's not the real power consumed.
show me the diagram of three phase wiring and also tell me hoe to take the readings of megger testing
WHY IS THE NO LOAD CURRENT SMALL FOR A TRANSFORMER COMPARED TO OTHER ROTATING ELECTRICAL MACHINES??
A charge of 240 C is transferred in 2 minutes. The current flowing is:(a) 480A(b) 120A(c) 2A(d) 8A
what is the path of electron when a static electron is placed in a magnetic field?
what is AVR? what is the function of AVR?
what is the significant for using two types of voltage(line voltage & phase voltage)
to improve the existing power factor whether capacitors have to be added in series or parallel.and why
Which machine u will prefer to use at where flameble gases are comming out & why?
Do Phase angle measurement have any application in freq/harmonics measurement? If so how?
What is Exact meaning for Full load Efficiency and Maximum Efficiency of Transformer? Is there any Difference between? If yes ,please provide with formulae?
What is current chopping in CB?