POWER FLOW AND VOLTAGE STABILITY ON AC TRANSMISSION LINES

Read: Surge impedance loading of transmission line

Simple two generator network
Figure 1: Simple two generator network

Read: Voltage regulation

Power System Stability

Read: Voltage unbalance

Angle Stability

Angle stability
Figure 2: Angle stability

Read: Voltage tolerance standard- ANSI C84.1

Voltage Stability

Simple two-bus system
Figure 3: Simple two-bus system

Read: Voltage swell due to line-ground fault

Received power as the load increased (load impedance decreases)
Figure 4: Received power as the load increased (load impedance decreases)

Read: Charging current in high voltage cable

P-V Curve for Stability Analysis

Example of a P-V curve showing power delivered vs bus voltage
Figure 5: Example of a P-V curve showing power delivered vs bus voltage

Read: AC voltage drop and system power factor

Read: Source impedance calculation in power systems

P-V diagram for a simple resistive network
Figure 6: P-V diagram for a simple resistive network

Read: Cold load pickup in power distribution networks

Q-V Curve for Stability Analysis

Q-V curve
Figure 7: Q-V curve

Read: Power factor improvement and transformer loading