electrical substation
large transformer a network of power lines high voltage insulators a control house a switchgear or circuit breakers a lightning arrestor communication antennae fencing to protect the substation
electrical substation which has large transformer electrical substation which is a network of power lines electrical substation which has high voltage insulators electrical substation which is a control house electrical substation which is a switchgear or circuit breakers electrical substation which is a lightning arrestor electrical substation which has communication antennae electrical substation which has fencing to protect the substation