Question
Download Solution PDFThe primary reason for low power factor is owing to installation of ________.
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFCauses of low power factor:
- Most of the AC motors are of induction type (1φ and 3φ induction motors) which have a low lagging power factor
- These motors work at a power factor which is extremely small on light load (0.2 to 0.3) and rises to 0.8 or 0.9 at full load
- Arc lamps, electric discharge lamps and industrial heating furnaces operate at a low lagging power factor
- The load on the power system is varying; being high during morning and evening and low at other times
- During low load period, the supply voltage is increased which increases the magnetization current, this results in the decreased power factor
Last updated on Jul 1, 2025
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