engineering recuitment BHEL Engineer Trainee Mock Test 2025 Power Electronics and Drives Thyristors Characteristics of Thyristor
In power electronics, for series and parallel connection of thyristors, reliability of the series and parallel string is measured by de-rating factor (DRF) which can be expressed as
1
DRF =1 - string efficiency
2
DRF = 1 + string efficiency
3
DRF = (string efficiency)2
4
DRF = string efficiency