Question
Download Solution PDFWhich of the following generators at load condition offers positive poorest voltage regulation?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option "3'.
Concept :- For differential compound generator it is positive (Poorest positive regulation among all)
- The voltage regulation of a generator is defined as the change in the voltage drop from no load to full load to full load voltage.
- Voltage regulation = (no-load voltage - full load voltage)/full load voltage
- In the case of a series generator, the field is connected in series with the armature. Any increase in load current causes an increase in the field and hence the terminal voltage rises.
- Hence it has negative voltage regulation and it has the poorest voltage regulation.
During on-load conditions, the differentially compounded DC generator has the poorest voltage regulation as shown.
During the no-load condition, the DC series generator has the poorest voltage regulation.
Key Points
- Voltage regulation of shunt generator is positive
- For series generator, it is negative (Poorest negative voltage regulation among all)
- For over compound generator it is negative
- For under compound it is positive
- For, flat compound generator it is zero (lowest Voltage regulation among all)
- For differential compound generator it is positive (Poorest positive regulation among all)
Last updated on May 29, 2025
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