governing of steam turbine ppt download

[jaseela123d]

The regulation of the steam turbine is to ensure that the speed of the turbine is constant regardless of the loading conditions of the steam turbine. The steam turbine regulator controls the steam input to the turbine to maintain the speed of the steam turbine. The main methods of governance of the steam turbine are as follows:

• Governing mouthpiece
• Throttle control
• By-pass rules

Components of the steering system of the steam turbine

Steam Turbine Steering system is a steam turbine heart system to maintain the synchronous speed of the turbine under load change / grid; It helps to raise the speed of the turbine and synchronize it with the power system of the network. Today, the steering system for a steam turbine is equipped with electrohydraulic regulator: fully backed by the hydraulic regulator. The measurement, processing in the form of electrical signal offers advantages such as flexibility, dynamic stability and simple representation of complicated functional systems. The integration of electrical and hydraulic systems is an excellent combination with the following advantages:
• Accurate charging frequency slope with high sensitivity.
• Prevents turbine over-speed during charging.
• Fine tuning of steam turbine speed during loan conditions.