Answer Posted / m.mousa

We could define the reactive power if we how it generates
as follow.
All inductive (i.e. electromagnetic) machines and devices
that operate on AC systems convert electrical energy from
the power system generators into mechanical work and heat.
This energy is measured by kWh meters, and is referred to
as “active” or “wattful” energy. In order to perform this
conversion, magnetic fields have to be established in the
machines, and these fields are associated with another form
of energy to be supplied from the power system, known
as “reactive” or “wattless” energy.

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