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The frequency of AC power supply in India is:
50 Hz
60 Hz
40 Hz
55 Hz
50 Hz
The standard frequency of alternating current (AC) power supply in India is 50 Hz. This means the alternating voltage changes direction 50 times per second, completing 50 full cycles in one second. The Central Electricity Authority regulates this frequency to maintain synchronization across the national grid.
The standard frequency of alternating current (AC) power supply in India is 50 Hz. This means the alternating voltage changes direction 50 times per second, completing 50 full cycles in one second. The Central Electricity Authority regulates this frequency to maintain synchronization across the national grid.
Governed under the provisions of the Electricity Act, 2003, and standardized by the Bureau of Indian Standards (BIS) and the Central Electricity Authority (CEA).
India operates its entire national power grid at a synchronized frequency of 50 Hz.
A frequency of 50 Hz implies that the AC waveform completes 50 complete cycles per second.
Grid frequency management is critical to prevent equipment damage and power system instability.
Option B (60 Hz) is incorrect because it is the standard power frequency used in countries like the United States, Canada, and parts of South America.
Options C and D (40 Hz and 55 Hz) are arbitrary incorrect frequency values that do not align with standard power system designs.
Maintaining a stable frequency close to 50 Hz is a primary operational objective for load dispatch centers across India.
A is correct тАФ The frequency of AC power supply in India is 50 Hz.
In RRB JE and technical competitive exams, questions frequently test standard electrical parameters alongside national grid management bodies like POSOCO and CEA.
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