ACDB and DCDB

[SauravWest]

Dear all:

How are ACDB and DCDB arranged in a control room of substation?

Regards,

 

[crshears]

Other than for maybe one small AC panel supplying the lights and another DC supply panel for the emergency lights and maybe a UPS or two, Alternating Current Distribution Boards and Direct Current Distribution Boards are never [or if they are, very rarely, and then generally only in legacy locations] found within control rooms; rather, they are placed in switchgear rooms designed specifically for that purpose. Maintenance and repair facilities are typically included within the building envelope. Facilities for the rapid venting of arc products may be incorporated as well.

Control rooms on the other hand most often contain controllers/operators [people!] and the computers and/or control panels needed to operate power plants or grids, and as such are climate controlled and more or lest dust free. Operators would almost universally take a very dim view of having to share their space with switchgear.

CR

"As iron sharpens iron, so one person sharpens another." [Proverbs 27:17, NIV]

 

[bacon4life]

Our control rooms all have rather large DC panels so that each component is separately protected. Each PCB typically has 2 DC circuits (trip1, trip2) and each bay as two circuits (Relay1 and Relay2). I assumed you were talking about transmission substation control rooms rather than somewhere operators would inhabit for long periods. At substations with dual batteries the distribution layout changes dramatically.

 

[cuky2000]

It is suggested to consider the NERC guides for AC & DC panels and system particularly if this is classified as a Bulk Electric System (BES) facility.
Always is recommended to follow a common sense applying the “good engineering practice” avoiding a single point of failure at the location of the the AC & DD primary and redundant panels in case of fire, vandalism, human error or any of other unwanted unforeseen event.

This also apply to the power sources as well wiring and redundant components.