Power Grid, L goes up, why grid current goes up as well?

In summary, the conversation is about understanding reactive power and a roadblock that was encountered regarding an increase in inductive load causing a drop in voltage across loads. The question is who and what mechanism ensures that constant power is delivered to the resistive load. The answer is found in a Physics Forums article under "voltage control." The article is referred to as a "bible" for understanding this topic.
  • #1
ugenetic
50
3
I am on a perpetual quest to understand reactive power.

one of the road blocks I encountered is this text:
" if inductive load in the grid increases, voltages across loads will drop. In order to maintain power delivered, grid current has to increase"

That statement is quite frustrating to understand. my understanding is that If voltage across a resistive load drops then less power is delivered to that resistive load, who and what mechanism is making sure constant power needs to be delivered to that resistive load?
 
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Likes sophiecentaur and jim hardy

Related to Power Grid, L goes up, why grid current goes up as well?

1. Why does the grid current increase when the power grid voltage increases?

As the power grid voltage increases, the potential difference between the grid and the cathode also increases. This higher potential difference causes more electrons to flow from the cathode to the grid, resulting in an increase in grid current.

2. How does the increase in grid voltage affect the power grid?

The increase in grid voltage causes the power grid to operate at a higher overall voltage. This means that more power can be transmitted through the grid, allowing for increased energy consumption and usage.

3. Does the increase in grid current have any negative effects?

In most cases, the increase in grid current is a normal and expected result of an increase in grid voltage. However, if the increase in grid current becomes too high, it can cause overheating and potential damage to the power grid equipment.

4. Can the increase in grid current be controlled?

Yes, the increase in grid current can be controlled through various methods such as regulating the grid voltage, adjusting the load on the power grid, and using protective devices to prevent excessive current flow.

5. Is there a limit to how much the grid current can increase?

Yes, there is a limit to how much the grid current can increase before it becomes dangerous for the power grid and its equipment. This is why it is important to monitor and regulate the grid current to ensure the stability and safety of the power grid.

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