A generator is supplying a load of 700 kW at a power factor of 0.9 lagging. If the power factor is raised to unity, how many more kilowatts can alternator supply for the same kVA loading?

Q: current and voltage outputs of an operating ac generator have peak values of 2.5 A and 16 V,…

A: In this question we will find average power output and effective resistance....

Q: Determine the average power supplied by each source in the circuit jin jin 1020° V(:) (1) 2230° A

A:

Q: For a 3 phase 975 KVA generator.... if the voltage rating is 2400V what is the current rating at…

A: The power factor is calculated as follows, From figure the general formula for power factor is,…

Q: The power input measurement to a synchronous motor is done using the two- wattmeter method. Each of…

A: This question belongs to measurements and instrumentation . It is based on the concept of two…

Q: A tree-phase generator has a load 100 kw per phase at a power factor 80 percent,lagging what is the…

A: The active power consumed by a 3ϕ load is equal to the sum of active power consumed by each load.…

Q: 10. Naghsh-Jahan Generation owns three generating units that have the following cost functions: Unit…

A: The generation cost is minimum when the incremental fuel cost of all the units are equal i.e.…

Q: Three single-phase transformers are connected into a three-phase bank. The primary is connected as a…

A: In this question we need to find a phase voltage of primary.

Q: Q5) An alternator has 36 slots per pole. One coil lies in the slots number 1 and 31. Calculate the…

A: The question is about winding pitch.

Q: * Two generators, rated at 100 MW and 400 MW, are supplying power to a network. The system frequency…

A: we need to tell the value of droop R of the 100MW generator.

Q: A 6.6 kV, 6 MVA, Y-connected, 3φ alternator has an effective ac resistance of 0.436Ω between…

A:

Q: Two step-up transformers are connected in series, the secondary of the first to the primary of the…

A: In this questionWe need to determine the voltage between both transformers i.e Vint  We know, in…

Q: what is the kilowatt rating of a three-phase 975-KVA generator at. a.  unity power factor ? b. 80…

A:

Q: A three phase load has a rating of 200 KW, 4000 volts, 0.7 power factor lagging and a frequency of…

A: The solution can be achieved as follows.

Q: Q1) A system consists of two generators. Data of these generators as follow GI has 30 MW capacity…

A: Answer (A) From the data of G1 which is having 30 MW capacity  and the failure rate is 0.38day and…

Q: 8 The EMF induced in the secondary winding of a 50 Hz single-phase transformer having 500 turns on…

A: Given: The EMF induced in the secondary winding, E2=13.2 kV Frequency, f = 50 Hz Number of turns on…

Q: Find the values to represent the Thevenin Equivalent Circuit 802 W 43 A 12 Ω VTH 10.8 Volts, RTH-4.8…

A: The circuit diagram,

Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.