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Chapter 11: Q2CSQ (page 736)

In the case study, system stability is subdivided into what three categories? What is rotor angle stability?

Short Answer

Expert verified

The system stability depends on the voltage, frequency and rotor angle stability. The rotor angle stability is the ability of the alternator to maintain synchronism.

Step by step solution

01

Define the system stability.

The system stability is defined as the ability of the power system to maintain the balance in the supply and transmission even in the case of any fault. The aim of the system stability is to provide power supply that is pure and uninterrupted.

02

Determine the answer

The stability of the power system depend on the categories mentioned below:

  1. The rotor angle stability of the generation unit.
  2. The voltage stability of the transmission and supply units.
  3. The frequency stability of the power system.

Here, the rotor angle stability is the stability in case of the synchronous machine. It is the ability of the alternator to maintain the power generation stability in case of any disturbance in the transmission or the input mechanical power.

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