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Unit of reactive power is
KVA
KVAR
KW
KVAZ
KVAR
Reactive power, also known as imaginary power, is the portion of power that oscillates between the source and the reactive components (inductors and capacitors) of a circuit without performing useful work. Its unit is Volt-Ampere Reactive (VAR), often expressed as KVAR for higher magnitude.
Reactive power, also known as imaginary power, is the portion of power that oscillates between the source and the reactive components (inductors and capacitors) of a circuit without performing useful work. Its unit is Volt-Ampere Reactive (VAR), often expressed as KVAR for higher magnitude.
Q=VIsin(╧Х) тАФ Reactive power calculation
S=P2+Q2тАЛ тАФ Relationship between Apparent, Real, and Reactive Power
In an AC circuit, reactive power is produced by magnetic fields in inductors and electric fields in capacitors. These components store energy during part of the AC cycle and return it to the source during the remainder, resulting in an average real power of zero. The total apparent power is the vector sum of real power (W) and reactive power (VAR).
Reactive power does not perform mechanical work or produce heat.
It is essential for maintaining the voltage levels required for electromagnetic equipment operation.
High reactive power consumption leads to poor power factor in industrial circuits.
It is measured in VAR (Volt-Ampere Reactive).
Necessary for establishing magnetic fields in motors and transformers.
Used in power factor correction to improve efficiency.
Increases current flow in lines without delivering work.
Increases I2R losses in transmission and distribution systems.
Motors and Transformers
Induction heating equipment
Fluorescent lighting ballasts
KVA represents Apparent Power, KW represents Real Power, and KVAR represents Reactive Power.
Option D (KVAZ) is an invalid unit used as a distractor.
B is correct тАФ The unit of reactive power is Volt-Ampere Reactive (VAR), typically expressed in KVAR for power systems.
Always remember the mnemonic: Real power is what you pay for (KW), Apparent power is what the system handles (KVA), and Reactive power is the 'penalty' or 'support' power (KVAR).