Extra High Voltage Engineering Consultancy Services

USA - Design & Engineering services for the 230/13.8kV GIS substation with 15 x 90MVA Transformers for 1 GW Data Center at North Carolina, USA (Job entrusted by Hypertec Construction Inc., Canada)

The scope of work shall include basic and detailed design and engineering services for electrical, civil, structural, I&C and mechanical works of the 230/13.8kV, 12 x 90MVA (plus 3 nos. Trafo as stand by) GIS substation in Cleveland County, North Carolina, USA. Our services shall include procurement support (Technical specs, Bid evaluation and vendor drawing review), shop drawings and IFCs for the following works of the Substation :

-    230kV Gantry and Switchyard equipment to receive Power from the utility by 2 feeders.

-    230 KV GIS Housed in a Structural PEB.

-    12 x 90MVA Power Transformers with RTCC, Nitrogen injection fire protection system (NIFPS) and online gas analyser + 3 stand by transformers.

-    13.8kV GIS mounted in E-Houses.

-    2 x 13.8/400V Earthing Transformers (Hermitically sealed type).

-    13 nos. 13.8kV Earthing reactors.

-    380V AC DBs, 125V DC and 48V DC DBs and downstream power supply to various auxiliaries and Lighting / small power.

-    125V Battery and Battery charger for 230kV system.

-   125V Battery and Battery charger for 13.8kV system,

-   48V Battery and Battery chargers for communication system.

-    Civil and Steel structural works.

-    Heating, ventilation and air conditioning system of the PEB and E-houses.

-    Sanitary, plumbing and water supply system.

-   Fiber optic communication system (voice and data, protection signalling).

-   Fire detection and alarm system (FDA).

-    Fire fighting system by clean agent gas based system and portable extinguishers.

-   Misc. EHV, MV, LV and Instrument cabling.

-   Cabling related to SCADA and Fiber optic communication system.

-   Emergency DG set for power supply to essential loads if normal power supply fails.

Designs shall comply with American standards and IEC, Eurocode as applicable