The regulation of a Primary Current Injection Test Set refers to its ability to maintain a consistent output current despite changes in the input voltage or load conditions.This is an important aspect to ensure accurate and reliable testing results.

　　The regulation of a Primary Current Injection Test Set is typically specified as a percentage of the output current.It is calculated using the following formula:

　　Regulation(%)=((I_max-I_min)/I_nom)*100%

　　where:

　　-I_max is the maximum output current the test set can provide,

　　-I_min is the minimum output current the test set can provide,and

　　-I_nom is the nominal output current.

　　For example,if a Primary Current Injection Test Set has a nominal output current of 1000A,a maximum output current of 1050A,and a minimum output current of 950A,then the regulation would be:

　　Regulation(%)=((1050-950)/1000)*100%=(100/1000)*100%=10%

　　This means that the regulation of this test set is 10%,indicating that the output current may vary by up to 10%from the nominal value.

　　Manufacturers typically provide the regulation specifications for their Primary Current Injection Test Sets in the user manual or datasheet.It is important to consider the regulation when selecting a test set to ensure that it meets the accuracy requirements of the intended testing applications.