What are the functions of the shunt release?

The functions of the shunt release are as follows: 1. Quickly cut off the excitation power supply to prevent damage caused by overvoltage and protect the safe operation of the generator; 2. Quickly cut off the excitation power supply to prevent instability The excitation causes fluctuations in system frequency and voltage; 3. Prevent the generator output overvoltage from further propagating to the power grid, protecting the stability of the power grid and the safe operation of other equipment.

# Operating system for this tutorial: Windows 10 system, Dell G3 computer.

The shunt release (Excitation Breaker) is a protection device used in power systems, mainly used to protect generators and excitation systems. Its function is to quickly cut off the excitation power supply of the generator when it detects generator loss of excitation or excitation system failure to avoid generator output overvoltage and damage to the power grid and equipment.

Specifically, the functions of the shunt release are as follows:

1. Generator protection: When the generator loses excitation or the excitation system fails , the excitation current may increase rapidly, causing the generator output overvoltage. The shunt tripper can quickly cut off the excitation power supply to prevent damage caused by overvoltage and protect the safe operation of the generator.

2. System stability: The stability of the generator excitation system is crucial to the stable operation of the power system. When the excitation system fails or malfunctions, the action of the shunt release can quickly cut off the excitation power supply to prevent unstable excitation from causing fluctuations in system frequency and voltage.

3. Power grid protection: Overvoltage may cause damage to the power grid and other equipment. Through the action of the shunt release, the generator output overvoltage can be prevented from further propagating to the power grid, protecting the stability of the power grid and the safe operation of other equipment.

In summary, the shunt tripper plays an important role in the protection of the generator and excitation system. It can cut off the excitation power supply in time and protect the generator, power grid and other equipment. safe operation.

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