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I will assume this is a question on AC power into a building. That is referred to as a brown out.

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Q: What are temporary reductions in voltage called?
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Related questions

What are temporary voltage reductions called?

Sags


Temporary voltage reductions are called?

Brownouts or sags


What is temporary voltage reductions?

Brownouts or sags


What is a temporary reduction in voltage in a computer called?

Brownout


The incoming voltage from the current source to the transformer is called what?

The incoming voltage from the source to the transformer is called primary voltage.


Why is not feasible to operate bulbs a low voltages although it amount to high efficiency?

Lamps (not 'bulbs' ; we plant bulbs!) will only produce their rated power at their rated voltage. These values are printed on the glass envelope. Reducing the voltage applied to a lamp will, therefore, reduce the power it produces. In fact, there's not a simple, linear, relationship between a lamp's voltage and its power, and this means that even small reductions in voltage will result in large reductions in power.Operating lamps, or any devices, come to than, at lower voltages really has nothing to do with efficiency. Certainly, operating a lamp below its rated voltage will most-certainly NOT result in high efficiency. Efficiency is defined as the ratio of output power to input power and has nothing to do with voltage.


What are multi-lateral reductions?

Reductions of weapons held by multiple nations


What is the voltage that supplies a motor starter called?

In the electrical trade it is called control voltage. This voltage can be any voltage. In North America the common control voltage is 120 volts.


Reduction in the quantity of bone?

This is called Osteoporosis. A frequent condition in women who undergo hormone reductions as they age.


What is mean by thresold voltage?

the device oprates on the minimum voltage. in this voltage is called threshold voltage.


What is it called when voltage is lost across a portion of a circuit?

This is often called a "voltage drop".


What is the voltage that is provided by the transformer is called the?

Secondary voltage.