Question { 5655 }

what does the regenerative braking mean?and how it used for
Dc motor? thanks.

Answer

regenerative braking is a method which is used to to stop
the DC motor immediately against moment of inertia.A
regenerative brake is a mechanism that reduces vehicle speed
by converting some of its kinetic energy into a storeable
form of energy instead of dissipating it as heat as with a
conventional brake. The captured energy is stored for future
use or fed back into a power system for use by other
electrical equipment.

Question { L&T, 8380 }

What is the In door to Out door Sub Station.

Answer

IN indoor substations the substation equipments are kept
inside the closed environment or buildings whereas in the
outdoor substation the substation equipments are kept in
open environment or opened surroundings.

Question { 4573 }

how to protect transformer

Answer

transformer can be protected by using the
circuibreaker,buccholz relay,isolator,merz prize protection
using current transformers.