In a 3-phase, 4-wire, Y-connected generator, line-to-neutral voltage is the voltage between a phase and the common neutral where the three phases are tied together. Load Demand The purpose of load demand controls is to reduce fuel consumption and limit problems caused by light load operation of reciprocating diesel generator sets.

But, to operate the transformer in same voltage, same size of the conductor and different frequency we should reduce the KVA output of the same transformer. Frequency Vs kVA Rating of the transformer. Let see a Simple example. Now a three phase, 500 KVA, 60 Hz transformer is operating at the voltage of 11000 V/440 V.

Answer (1 of 9): There is no direct relationship. Voltage in power systems involves a tradeoff between safety and efficiency, with higher voltages (and associated lower currents) tending to reduce distribution losses. Frequency should be high enough to minimize flickering of lights. Higher fre...

The current in stator or rotor depends on voltage applied or induced(by speed/frequency), and the respective impedance offered, which depends on type of motor and size, on the basis of these ...

The following circuit represents a square wave generator. Determine its output voltage a) -13 v b) +13 v c) ± 13 v ... Output frequency does not change as that of input frequency c. There is no relation between input & output frequencies d. None of the above Answer : Output frequency changes by same amount as that of input frequency ...

A four pole, three-phase synchronous generator is rated 250 MVA, its terminal voltage is 24 kV, the synchronous reactance is: 125%. • Calculate the synchronous reactance in ohm. • Calculate the rated current and the line to ground terminal voltage. • Draw the equivalent circuit. • Calculate the induced voltage, E. f (Ans: X

The first is a graph showing a sudden drop in frequency on a graph. Frequency is on the y-axis and time is on the x-axis. On the graph, the frequency drops to 59.90Hz between 0 and 8 seconds. This is called the arresting period. In between 8 and 21 seconds the rebound period occurs where the system raises to about 59.94Hz on the graph.

Power Law: The Relationship of Voltage, Current, and Watts. By Patrick Hoppe. Learners examine three formulas than can be used to find dc power. Examples are given. Download Object. Download Object.

unit. Change the \RANGE" setting of the function generator to 100:00 Hz. Note, the frequency displayed is the frequency of the output voltage. 4. On the oscilloscope change the Coupling to \DC." Press the \Measure" button. Perform the following operations: for Measure 1 change Source to \CH1;" change