A generator is rated 800kVA, 2400, 60Hz, 3-phase, 6-poles, and Y-connected has 10% synchronous reactance. If a three-phase fault occurs, what will be the short circuit current

Q: 3. The Direct axis reactance of a synchronous generator is given as 0.4 pu based on the generators…

A: In this question we will find pu impedance on new base...

Q: In the following 3-phase power system, the voltage at point a is initially 0.95 pu, and the motor is…

A: In this question we need to find a fault current of the given system when a ground fault occurs at…

Q: protective relay. o uonRJado pn unM DAIRUIDJO0O SI b) A fault occurs at bus 3 of the network shown…

A:

Q: A fault occurs at bus 4 of the network shown in Figure Q3. Pre-fault nodal voltages throughout the…

A: x=1y=7Note: reactance of element right to bus 4 is not given. Hence we will not consider that in…

Q: The subtransient reactance of a generator is typically much larger than the steady-state reactance.…

A: 1 ) generally the subtrasient  response of a generator is larger than the steady state reactance. So…

Q: In the RL-series circuit, V=220volts, L=2 mH, R= 0.5 Ohm, and w=260 rad/s. elt)=12V sin(ast + a) 40…

A: Step 1:

Q: ignore X and Y values

A: Step 1:Step 2:Step 3:

Q: b) A fault occurs at bus 2 of the network shown in Figure Q3. Pre-fault nodal voltages throughout…

A:

Q: £2 tribution feeder has 600/5 C100 CT. A three phase fault of 1=10200A occurs at F as shown in…

A: Given Fault current =If =10200 A CT burden resistance ZR=0.1 ohm Lead resistance =RL=0.5 ohm CT…

Q: A 3 phase fault occurs at bus 1. Fault impedance Z, =j0.2 p.u. Z,, = 0.07286 p.u. Then the fault…

A: In this answer we will try to find out the fault current at bus-1 as shown below. Fault current is…

Q: ence components of the fault current are as Ipositive 12 p.u., Inegative and Izero The type of fault…

A: SOLVE ABOVE QUES

Q: A line to ground fault occurs on the terminals of an alternator, sequence voltages and sequence…

A: The given data is shown below:

Q: For the following power system, all bus voltages are initially 1 1 pu. Then a three-phase fault…

A: The reactance diagram of the given system will be After a 3-phase fault, the fault point will be…

Q: Q.3 When a line-to-ground fault occurs, the current in faulted phase 'a' is 100A. The zero-sequence…

A:

Q: A 300V, 60kW shunt generator has 1200 turns on each pole of its field wind ing. On load a current of…

A: It is given that: V=300 VP=60 KW=6000 W

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.