Effect of variation of steam supply

In summary, the conversation discusses the effect of variation in steam supply on the power output, power factor, armature current, and load angle of a synchronous machine. The equation P=(EV)/X sin d is mentioned, and it is stated that reducing steam supply will decrease the induced E of the machine. The speaker also mentions that the voltage at the infinite busbar will remain constant due to var injection, and the power output will decrease. The relationship between power output, load angle, and armature current is also discussed. Finally, it is mentioned that there are different ways to design and connect AC and DC generators, and the speaker may have chosen the wrong one.
  • #1
StealthRay
51
0
Hi,

I am doing my revision and one of the question got me thinking but I am not sure if I got it right.

The question asks what is the effect of variation of steam supply on power output,power factor,armature current and load angle of the synchronous machine.

I think reduced in steam will reduce the induced E of the machine.

So from the equation, P=(EV)/X sin d.

I think voltage at the infinite busbar will remain constant because of var injection.I think the power output will decrease.

If power drops,I guess from the equation load angle will fall too.

But how about the armature current?IF both power output and power factor drops,then current will probably remain constant.

Can anyone please explain to me.Thank you.
 
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  • #2
There are many ways to design and connect AC generator and DC generators, each with their own set of equations. You chose the wrong one.

A steam power plant connected to the grid almost always use synchronous generators. For a synchronous generator, reducing steam supply reduces the phase angle of the generator relative to the infinite bus resulting in lees power.

Phase angle of the voltage, not the amplitude of the voltage.
 

What is the effect of increasing steam supply on the temperature of a system?

Increasing the steam supply to a system will typically result in an increase in temperature. This is because the added steam has a higher energy content, which is transferred to the system and raises its temperature.

What factors can influence the variation of steam supply and its effect?

The variation of steam supply can be influenced by factors such as the type and size of the steam source, the pressure and temperature of the steam, and the design and efficiency of the steam delivery system. These factors can all affect the amount of steam that is supplied and the resulting effect on the system.

How does the variation of steam supply affect the efficiency of a system?

The efficiency of a system can be affected by the variation of steam supply in a few ways. For example, if the steam supply is inconsistent or fluctuates too much, it can lead to fluctuations in temperature and pressure within the system. This can result in reduced efficiency and potential damage to equipment.

What are the potential risks of varying steam supply too much?

Varying steam supply too much can have several potential risks. These include damaging equipment due to fluctuations in temperature and pressure, decreased efficiency of the system, and potential safety hazards such as steam leaks or explosions.

How can the effects of varying steam supply be controlled and optimized?

The effects of varying steam supply can be controlled and optimized by carefully monitoring and regulating the steam supply. This can include using pressure and temperature sensors, adjusting the steam flow rate, and implementing proper maintenance and repair procedures for the steam delivery system.

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