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Voltage of Primary Distributor can be
11┬аkV
415┬аV
132┬аkV
All of these
11┬аkV
A primary distributor is a segment of the power distribution system that carries high-voltage power from the substation to local distribution transformers. In typical Indian power systems, the primary distribution voltage level is standardly 11 kV.
A primary distributor is a segment of the power distribution system that carries high-voltage power from the substation to local distribution transformers. In typical Indian power systems, the primary distribution voltage level is standardly 11 kV.
P=3тАЛVLтАЛILтАЛcos╧Х тАФ Relationship between power, voltage, and current in a 3-phase system.
Losses=3I2R тАФ Power loss in distribution lines.
The primary distribution network connects the distribution substation to the distribution transformers. By using higher voltages like 11 kV, the system minimizes I2R power losses and improves voltage regulation, allowing the electricity to be transmitted across longer distances within the distribution area before being stepped down to consumer-level utilization voltages (e.g., 415 V).
Primary distribution in India typically operates at 11 kV, 22 kV, or 33 kV.
The primary distributor feeds the distribution transformers.
415 V is considered a secondary distribution (utilization) voltage.
132 kV is typically a sub-transmission voltage, not a distribution voltage.
Lower current for the same power rating reduces line losses.
Better voltage regulation over distance.
Requires higher insulation levels compared to secondary systems.
Requires transformers at the end of the feeder to step down voltage.
Urban and rural power supply lines.
Industrial feeders from substations.
11 kV is the most common primary distribution voltage used in residential and commercial areas in India.
Option B (415V) is the secondary distribution voltage used for consumer connections.
Option C (132kV) is classified as sub-transmission voltage.
A is correct тАФ The primary distributor operates at high voltage levels, with 11 kV being the standard primary distribution voltage in India.
Remember that distribution voltages are lower than transmission voltages; if the voltage is over 66 kV, it is almost certainly transmission or sub-transmission.