GE DS2020FFMAG1 Exciter, Field Flashing Panel
⁦GE DS2020FFMAG1 Exciter, Field Flashing Panel⁩ - الصورة ⁦2⁩

GE DS2020FFMAG1 Exciter, Field Flashing Panel

 

The primary purpose of the DS2020FFMAG1 is to re-establish the magnetic field in the exciter and generator rotors. A generator requires a small amount of residual magnetism to “bootstrap” itself and begin producing voltage. If this residual magnetism is lost, the generator cannot build up voltage on its own, even if the turbine or prime mover is spinning at the correct speed. The field flashing panel addresses this by injecting a brief pulse of DC current into the exciter field coils. This momentary current surge, or “flash,” restores the necessary residual magnetism, allowing the generator to begin the voltage buildup process.

 

2. Design and Technical Features

 

The DS2020FFMAG1 is not a standard circuit board but rather a complete panel assembly. It contains the necessary components—such as relays, switches, and potentially a control circuit—to manage the field flashing process. This panel is typically mounted within the control cabinet, where it can be manually or automatically activated. The “DS2020” designation indicates that it is a special assembly, similar to other dedicated modules in the Mark V series. The panel is designed to be robust and reliable, ensuring that the field flashing procedure can be performed safely without damaging sensitive electronic components.

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الوصف

The GE DS2020FFMAG1 is an Exciter Field Flashing Panel used in GE’s turbine and generator control systems, particularly in the Mark V series. Its specialized function is to perform “field flashing,” a critical procedure required when a generator’s residual magnetism is lost. This can happen if a generator has been out of service for a long period or due to other operational issues.

 

1. Function and Purpose

 

The primary purpose of the DS2020FFMAG1 is to re-establish the magnetic field in the exciter and generator rotors. A generator requires a small amount of residual magnetism to “bootstrap” itself and begin producing voltage. If this residual magnetism is lost, the generator cannot build up voltage on its own, even if the turbine or prime mover is spinning at the correct speed. The field flashing panel addresses this by injecting a brief pulse of DC current into the exciter field coils. This momentary current surge, or “flash,” restores the necessary residual magnetism, allowing the generator to begin the voltage buildup process.

 

2. Design and Technical Features

 

The DS2020FFMAG1 is not a standard circuit board but rather a complete panel assembly. It contains the necessary components—such as relays, switches, and potentially a control circuit—to manage the field flashing process. This panel is typically mounted within the control cabinet, where it can be manually or automatically activated. The “DS2020” designation indicates that it is a special assembly, similar to other dedicated modules in the Mark V series. The panel is designed to be robust and reliable, ensuring that the field flashing procedure can be performed safely without damaging sensitive electronic components.

 

3. Applications and Importance

 

The field flashing panel is a crucial safety and maintenance component in power generation facilities. It provides a means to “black start” a generator or recover a unit that has failed to build voltage. In a power plant, the reliability of a generator is paramount, and the ability to quickly restore its functionality without having to replace major components is vital. This panel provides that capability, ensuring operational readiness and minimizing downtime.

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