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What is the relation between power factor and frequency for purpose of parallel operation of alternator?
No relation is there power factor is a unit less quantity.
The power of the signal would be high or low if you are transmitting in omnidirection antenna as compared to directional antenna?
The power of the signal, as perceived by the receiver, will be lower with an omnidirectional antenna. This is because the omnidirectional antenna is transmitting in all directions, while the directional antenna is transmitting in only one direction.Think of the directional antenna as a lens, focusing proportionally more power in a smaller space.
When two alternator running in parallel the power factor from 8 drops to 5 or less why is it so?
power factor 0.8 drops to .05 when two alternator running in parallel
Should Power sources connected in parallel have the same voltage rating?
yes
What is Differentiation Between Series circuit and parallel circuit?
In a series circuit, on the way from the positive to the negative power terminals, there is only one path for current to take from any point. If there is a point anywhere in the circuit where the current has a choice of two or more paths to take, then that segment at least is a parallel segment.
What is cupling?
coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power.
What are the advantages of gear drives over belt drives?
Belt drives can be used when the distance between two shafts(for transmitting power) is large and are relatively cheaper than gear drives.
What are couplings used for in factory equipment?
A coupling is a device used to connect two shafts together at their ends for the purpose of transmitting power. Couplings do not normally allow disconnection of shafts during operation.
Why are helical gears more favourable than spur gears?
bevel gears are used for power transmitting between the shafts which intersect at some angel ( usually right angel) , but the spur gear is used for shafts which are parallel and coplanar.
What three shafts are in a gearbox?
In a gearbox, the three main shafts are the input shaft, output shaft, and countershaft. The input shaft receives power from the engine, transmitting it to the gearbox. The countershaft, which is typically connected to the input shaft, helps to facilitate gear changes and transfer power to the output shaft, which delivers the final drive to the wheels. Together, these shafts work in conjunction to manage torque and speed ratios within the drivetrain.
What is the function of universal joint?
It is a mechanical connection between rotating shafts which are generally not in parallel, but intersecting. It can allow positive transmission of rotating power at a much larger angle than is permissible with a flexible coupling. And it can transmit torque and motion.
What kind of wire transmit 11Kv power and is this different from those transmitting 415v power?
Insulation level is different between the cables.
What is the difference between clucth and coupling?
A clutch is a mechanical device that engages and disengages power transmission between two shafts, typically in a manual transmission system. A coupling is a device used to connect two shafts together at their ends to transmit power. While clutches are used for intermittent operation, couplings are used for continuous power transmission.
Straight or curved string trimmer?
Straight shafts have more power and a longer reach (for under trees etc) but are heavier. Curved shafts are lighter and have less power but are cheaper.
What is the relation between power factor and frequency for purpose of parallel operation of alternator?
No relation is there power factor is a unit less quantity.
What is the relationship between the total power supplied and the power consumed by the individual resistors in a parallel circuit?
power supplied=sum of powers delivered to individual elements
Show that doubling the transmission frequency or doubling the distance between transmitting antenna and receiving antenna attenuates the power received by 6 dB?
english
