The maximum power limit Pmax at δ = 90° for the cylindrical rotoris called the steady-state stability limit. Any swing in δ beyond 90° may cause the rotor to lose synchronism and i... Read more
Large ac generators are made of solid magnetic steel rotors of cylindrical shape, whereas small- and medium-size generators are made with laminated salient poles (protruding poles)... Read more
As per Equation, increasing the field current If increases Ef . One can visualize that higher (longer) Ef in turn increases the terminal voltage VT or the power factor angle θ, inc... Read more
The performance of a 3-phase generator at the terminals is based on the 3-phase power fundamentals. The generator typically supplies power to more than one load, some of which may... Read more
The power rating of ship electrical equipment applies to all equipment (electrical or mechanical) commonly found in electrical power plants.The electrical power ratings of generato... Read more
Two or more electrical power sources on ship are often connected in parallel to increase the load capability or reliability of the ship power system. In the case of two sources, bo... Read more
The rated voltage of an electrical power source is defined as the terminal voltage at full rated load current. The output terminal voltage rises with decreasing load current, risin... Read more
The losses in any power equipment can also be classified broadly into three categories: Voltage-related loss in ship electrical system Varies approximately with the flux density sq... Read more
If the rotor of a motor is held fixed (blocked from rotating), and the stator is allowed to rotate freely, the “stator” would rotate at the same speed that the rotor would have in... Read more
All ship electrical machines have two sets of coils: one set (field coil in generator and motor, and primary coil in transformer) produces the working magnetic flux φ and the other... Read more
