what are the problems are there
if power factor is leading
Answers were Sorted based on User's Feedback
When the power factor is leading, the capacitive kVAr is
more than the Inductive kVAr and this still has to be
supplied by the source. As kVA is the vector sum of kW and
kVAr, still for the given kW, you have to produce more kVA.
Alternately, for the given kVA, you can only convert
partially into useful work.
Secondary effects are voltage boost in the system,
availability of stored energy to feed the fault in case of a
fault, increase in the asymmetrical component of fault
current, increasing thus the peak value of the fault
current, etc.
Is This Answer Correct ? | 3 Yes | 1 No |
When the power factor is leading, the capacitive kVAr is
more than the Inductive kVAr and this still has to be
supplied by the source. As kVA is the vector sum of kW and
kVAr, still for the given kW, you have to produce more kVA.
Alternately, for the given kVA, you can only convert
partially into useful work.
Secondary effects are voltage boost in the system,
availability of stored energy to feed the fault in case of a
fault, increase in the asymmetrical component of fault
current, increasing thus the peak value of the fault
current, etc.
Is This Answer Correct ? | 2 Yes | 1 No |
When the power factor is leading, the capacitive kVAr is
more than the Inductive kVAr and this still has to be
supplied by the source. As kVA is the vector sum of kW and
kVAr, still for the given kW, you have to produce more kVA.
Alternately, for the given kVA, you can only convert
partially into useful work.
Secondary effects are voltage boost in the system,
availability of stored energy to feed the fault in case of a
fault, increase in the asymmetrical component of fault
current, increasing thus the peak value of the fault
current, etc.
Is This Answer Correct ? | 1 Yes | 0 No |
why is the number of turns different in current and potential coils of wattmeter..?
In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?
what is elevation lamp?where its used?
What are the electrical engineer roles and responsibilities in chemical plant?
how tto ingress mw in turbine explain.procedure ?
Why current shoots up in the secondary on the knee point voltage during saturation test of CT? How core saturation effects the secondary current (while the primary side is open)? What the logic behind this?
where does core based current transformer is used? and what is the value of lux in a work station?
What happened when voltage will half value of current ...
Before i went to bed my master bathroom lights were working fine. At 2 am, when I went to use the lights, none of them were working. The outlets throughout the bathroom work, but the lights and fan above the toilet don't. I have two panels of switches. The one panel has four switches. One of the switches turns on the hall light, and that works. The other three are to other lights, and they don't. The other panel has three switches. One of those is to the fan, and the other is to a light above the toilet. The other is a to light that is also on that other panel. I tried the breakers, and the one that turns off the outlets, marked for the bathrooom, turns on and off the outlets. None seemed to be tripped. I checked the lightbulbs, and they are fine. Please help
Why DC exitation to AC Generator? Why not AC?
What is the difference between the impedance percent and impedance voltage ?
HOW DOES THE PERCENTAGE DIFFERENTIAL PROTECTION WORK IN POWER TRANSFORMER