Substation

Gaurav verma

Partho banerjee

(A E)

What is Substation?

The assembly of apparatus used to change some characteristics (e.g. voltage, a.c. to d.c. ,freq, p.f. etc..)of electrical supply is called a substation.

Substation Layout flowchart

Incoming line Lighting arrester

CVT

Wave Trap

Current Transformer

Circuit Breaker

Isolator Bus 1 or bus 2

Potential Transformer

Isolator

100MVA t/f

Bus Coupler

Isolator Bus 31.5 MVA

t/f

Isloator

Outgoing lines

Capacitor Banks 28.8

MVAR

Bus 1 Bus 2

Ratings of Equipments

Two 100 MVA t/f 220/66kv. Three 31.5 MVA t/f 66/11kv. Capacitor Banks of 28.8 MVAR, 76kv. CT ratio 300/150-5A. SF6 type CB DC supply of 220V.

THANK YOU