A 800 V, 120kVA, 3-phase, 50 Hz, salient-pole synchronous generator is used in a hydroelectric dam, converting water flow into electricity via a turbine. The reactance values (X and X₁) are 1.95 and 1.10, respectively and the terminal current is measured to be 95 A at a power factor of 0.85 lagging. The armature resistance can be considered to be negligible (R₂ = 0). a) Draw the phasor diagram of the generator, b) Compute the generated voltage (Eaf) when the generator delivers its rated kVA at 0.85 lagging power factor and rated terminal voltage.
A 800 V, 120kVA, 3-phase, 50 Hz, salient-pole synchronous generator is used in a hydroelectric dam, converting water flow into electricity via a turbine. The reactance values (X and X₁) are 1.95 and 1.10, respectively and the terminal current is measured to be 95 A at a power factor of 0.85 lagging. The armature resistance can be considered to be negligible (R₂ = 0). a) Draw the phasor diagram of the generator, b) Compute the generated voltage (Eaf) when the generator delivers its rated kVA at 0.85 lagging power factor and rated terminal voltage.
Chapter39: Synchronous Motor Operation
Section: Chapter Questions
Problem 14SQ: Induction motors and welding transformers require magnetizing current, which causes a. lagging power...
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