Meaning ofsubstationin English

Noun

1. electricity transformation site; voltage regulation
   The power company built a substation to regulate voltage.
2. satellite police station; neighborhood jurisdiction
   The local substation is responsible for policing the neighborhood.
3. branch post office location
   The postal service opened a substation near the university.
4. subordinate operational base
   The military established a substation in the remote area to support the main base.
5. a site transforming high-voltage electricity for local distribution
   The utility company constructed a substation to step down the voltage for residential use.