Bus Type - Known Parameter - Unknown Parameter Load Bus -P, Q - V, phase angle Generator Bus - P, V (magnitude) - Q, Voltage phase angle Slack Bus Voltage - magnitude and phase angle - P, Q
The V-curves of a synchronous motor show relationship between Armature current (Ia) and Excitation current (If). The Inverted V-curves of a synchronous motor show relationship between power factor (pf) and field excitation (If).
For t = 0 in RC circuit, After t = 0+ condition, capacitor is behave as short circuit. Voltage across the it 0. At final time, Capacitor is behave as open circuit, voltage across the capacitor at final time is equal to 15 V.
The electrostatic stress in a cable is not uniformly distributed. The potential gradient is inversely proportional to the distance from the centre of the cable. Hence, it will be maximum (gmax) at the surface of the conductor and goes on decreasing until it becomes minimum (gmin) at the surface of the sheath. That means electrostatic stress in the dielectric of a cable is maximum at the surface of the conductor and minimum at the surface of the sheath.
EXAMIANS