Regulator input voltage range

A. regulator has an input voltage range. IEC standard for the input voltage rating of ± 10 range. Beyond the scope of sound and light alarm does not automatically make the output voltage within the requirements.
B. The output voltage regulation, is the input voltage changes caused by the effects of changes in output, when the load rating, the source mcb circuit breaker the input voltage range according to rating transferred upward upper and down limit measure maximum change amount of the output voltage (±). This value is the smaller the better, is a measure of exchange regulator important indicator of performance.
C. Load regulation: is caused by Circuit breaker in output load change effects. Changing the load current, measuring the output voltage change amount (±). This value is the smaller the better, but also to measure AC voltage electric meter indicator of performance.
D. relative harmonic content of the output voltage (also known as the output voltage distortion), usually expressed THD is the total harmonic content ratio of the rms value of the fundamental rms, when the load is rated input voltage distortion ﹑ meet benchmarks conditions (generally less than 3), the minimum value of the input voltage rating and maximum values ​​﹑ measured distortion of the output voltage, whichever is the greatest. smaller this value, the better.