Power Regulator

Introduction to power regulator:
Power is generated from fossil fuels like coal and oil and once they are used, they are gone forever, i.e., they are non-renewable sources of energy. Therefore, one should use power economically and judiciously so that there is no wastage. In order to make sure that we do not waste power and use it to its maximum and optimum way, we use an electrical device called a power regulator, which automatically maintains the level of voltage throughout the power requirement. Power regulator, also called Automatic Voltage Regulator (AVR), as it checks power related problems like, leakage, line noise, brownouts, sags, surges, voltage imbalance, over voltage and other problems, that actually costs people a lot every year. It is used to reconcile one or more AC or DC voltages. In almost all power regulators, some internal reference voltage is fixed and they operate by comparing it to the actual output voltage. The difference between the two is intensified and further used to reduce the voltage error. I like to share this Escape Velocity Formula with you all through my article.


Measures of Power Regulator Quality -

The output voltage is not held constant; therefore its regulation can be measured in the following ways:

1.  Line regulation or Input regulation: It is the ratio of change in output voltage to change in input voltage. It is degree at which the output voltage changes with the supply voltage.

2.  Load regulation: It is the change in output voltage with a specified change in load current.

3.  Quiescent Current: When no load is connected to the power regulator circuit, the Quiescent Current is generally measured as the input current and it is current drawn internally, which is not available to the load.

4.  Dropout Voltage: A low drop out power regulator is so designed that it can work efficiently even when the differencing voltage between the supply voltage and the output voltage is only one volt.

Models of Different Power Regulators

The following are the different models of Automatic Power Regulators:

1.  Three-Phase Power Regulator: It is a perfect model for a broad range of power quality problems in sizes from 5 to 2,000+ KV.

2.  Single-Phase Power Regulator: This one is for a broad range of power quality problems in sizes from 5 to 150+ kv or even 5 to 15+ KV

3.  Three-Phase Active Power Regulator for Deep Voltage Sagging: It works for reconciliation of deep voltage sags of sizes 10 to 2,000 KV.

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