Bissoy.com
Doctors Medicines MCQs Q&A

During the operation of a connecting a busbar in parallel with an incoming alternator the:

During the operation of a connecting a busbar in parallel with an incoming alternator the: Correct Answer Terminal voltage and phase of the incoming alternator should be same as that of the busbar, but the speed can be different

During the operation of a connecting a busbar in parallel with an incoming alternator, the following condition should be satisfied:

  • The phase sequence of the busbar voltages and the incoming machine voltage must be the same
  • The busbar voltages and the incoming machine terminal voltage must be in phase
  • The terminal voltage of the incoming machine and the alternator which is to be connected in parallel or with the busbar voltage should be equal
  • The frequency of the generated voltage of the incoming machine and the frequency of the voltage of the busbar should be equal

Related Questions

Piston diameter = 0.24 m, length of stroke = 0.6 m, length of connecting rod = 1.5 m, mass of reciprocating parts = 300 kg, mass of connecting rod = 250 kg; speed of rotation = 125 r.p.m; centre of gravity of connecting rod from crank pin = 0.5 m ; Kg of the connecting rod about an axis through the centre of gravity = 0.65 m Find angular acceleration of connecting rod in rad/s2.
If it is planned to bring an incoming alternator to the operating alternator in parallel, then which of the criteria can be ignored?
In the method of synchronization of the alternator to the busbar, a synchroscope indicates correct speed when:
For a steam engine, the following data is given: Piston diameter = 0.24 m, length of stroke = 0.6 m, length of connecting rod = 1.5 m, mass of reciprocating parts = 300 kg, mass of connecting rod = 250 kg; speed of rotation = 125 r.p.m ; centre of gravity of connecting rod from crank pin = 0.5 m ; Kg of the connecting rod about an axis through the centre of gravity = 0.65 m calculate inertia force at θ=30 degrees from IDC.
Piston diameter = 0.24 m, length of stroke = 0.6 m, length of connecting rod = 1.5 m, mass of reciprocating parts = 300 kg, mass of connecting rod = 250 kg; speed of rotation = 125 r.p.m; centre of gravity of connecting rod from crank pin = 0.5 m ; Kg of the connecting rod about an axis through the centre of gravity = 0.65 m Find the equivalent length L of a simple pendulum swung about an axis.
From the data given: Piston diameter = 0.24 m, length of stroke = 0.6 m, length of connecting rod = 1.5 m, mass of reciprocating parts = 300 kg, mass of connecting rod = 250 kg; speed of rotation = 125 r.p.m ; centre of gravity of connecting rod from crank pin = 0.5 m ; Kg of the connecting rod about an axis through the centre of gravity = 0.65 m Find the correcting couple in N-m?
An incoming alternator is to be synchronised with an already operating alternator. Which of the following conditions is NOT necessary to be satisfied?
To connect an incoming alternator to a running alternator certain conditions must be satisfied for synchronism. Which of the following is NOT one of the conditions?
When two alternators are running in parallel, if prime mover of one of the alternator is disconnect, that alternator will:
Two alternators A and B having 5% speed regulation are working in parallel at a station. Alternator A is rated at 15 MW while B is at 20 MW. When the total load to be shared is 12 MW, then how much of the load will be shared by the alternator B?