Realtime with fellow Quanta Services partner M.J. Electric provided engineering, procurement, construction, commissioning, testing and startup (EPC) services of a 230kV switch-yard and transmission line...
Realtime provided engineering and construction oversight services for the Fairview Energy Center (VINCO), a 2x1 combined cycle project. Project work consisted of a switch-yard/design on the local utilities system for a greenfield, 500kV switching station, tie line design, and construction oversight.
Complete engineering and design for the facilities required to successfully interconnect a new natural gas fired, combined cycle power generation facility, producing a maximum power output of 1000 MW for the transmission system. The switch-yard consisted of three (3) 500kV breakers which formed a ring bus design and connected the generation plant tie-line to local utilities network. New line, differential, and breaker protection were designed for installation in a new control house.
Birdsboro 230kV Underground Transmission Line & Substation
Realtime with fellow Quanta Services partner M.J. Electric provided engineering, procurement, construction, commissioning, testing and startup (EPC) services of a 230kV switch-yard and transmission line for a nominal 485 megawatt (MW) natural gas-fired combined cycle combustion turbine electric generating facility for Birdsboro Power LLC.
Project work consisted of the complete engineering and design for the facilities required to successfully interconnect the power output of Birdsboro Power Project with the local utilities transmission systems, including:
A 230kV, three (3)-breaker ring bus switch-yard per local utilities requirements for connection to their system.
A 230kV line panel to be installed at the power plant
A 230kV transmission tie-line, consisting of a combination of overhead and underground components, to connect the facility to the new switch-yard.
Ball Hill Wind
Realtime provided engineering services to construct a greenfield 230kV Point of Interconnection Station (POI). It was be designed in a four (4)-breaker ring bus arrangement, with three (3) breakers. The station shall serve as an interconnection station between a
230kV transmission system, and the Ball Hill Wind Farm LLC Collector Station and the Utilities System facilities. The customer generating facility is rated for approximately 100MW of generation.
Station 122 (GRTA) 345kV Substation
Realtime provided engineering services for the addition (2) new 345kV bays and (3) new 345-115kV transformers to accommodate a capacity increase at the substation.
Design for installation of new 4th and 5th 345kV bays; installation of new transformers 4T, 5T, and 6T; new relay design integrated with existing annunciation, SCADA, and engineering access systems; new protection and control system, including IEC 61850 protocol and GOOSE messaging for relay-to-relay communications; 345kV control building expansion; 345kV connections from transformers to 345kV bays; 115kV underground connections from new GIS switchgear to the existing line terminal structures; 115kV revenue metering; termination structure foundations; demolition of the existing 115kV switchyard and control building; and 115kV transmission line terminal structure relocation and retrofit.
Line 813 69kV Rebuild
Realtime provided engineering services for the Line 813 69kV Rebuild.
The existing 3.54 mile Carsonia – South Reading (813) 69kV line is to be rebuilt from six-wire bifurcated steel lattice tower and wood pole construction to three-wire steel monopole and wood pole construction. In total, twenty-one (21) steel lattice towers and fourteen (14) wood poles are to be removed and replaced with twenty-two (22) steel monopole and thirteen (13) wood pole structures. New 556 kcmil 26/7 ASCR “DOVE” conductor and 3#6 Alumoweld shield wire will be installed on the new structures. The existing line traverses rugged terrain through Neversink Mountain and experiences elevations varying across its length from 300-900ft. A particular challenge on this project is the design of a new steel transmission structure to support the line and a cellular antenna array. An existing lattice tower had been retrofitted to support a cellular antenna array and this existing array needed to be transferred to the new structure.
Lallendorf 345kV Switchyard
Realtime with Quanta Services partner M.J. Electric provided engineering, procurement, and construction (EPC) services for a new 345kV switch-yard in a five-breaker ring bus configuration.
The switch-yard consisted of (5) 345kV breakers which connected to (4) lines and a new generating station. New line and breaker protection was designed for installation in a new control house.
Two of the lines used fiber communications and two utilized power line carriers. The generating station was protected using (4) fiber channels.
Station 80 (GRTA) 345kV Substation
Realtime provided engineering services for the addition of a new 345kV 5th bay and new control and protection design to the newly constructed 345kV 4th bay.
This project consisted of the complete design for the new 345kV bay 5; new control and protection for the 345kV bay 4 and stub bus; new 345kV bus 1 and 2 protection; and new cable trench system expansion. Relay upgrades were performed on all (5) 138kV and all (4) 69kV transmission lines.
Realtime provided engineering services for the new 115kV Bluestone Switching Station for the interconnection of the Bluestone Wind Project. The 115kV Bluestone Switching Station was connected to the new Bluestone Wind Project via the CTO AF which consists of an overhead transmission structure, bus supports, a switch support structure, revenue metering, CT/VT combo units, and a 123kV motor operated disconnect switch. The connection was via overhead transmission line. The switch-station was built in a three (3)-breaker ring bus configuration to accommodate the new connection location for the Bluestone Wind Project.
502 Junction 500kV Substation
Realtime provided engineering services for a 500kV greenfield substation, consisting of (4) 500kV lines, designed with future expansion to (6) 500kV lines and future transformation to 138kV. This design required the movement of over 2 million cubic yards of materials, as well as removal of over 80 feet of mountain top, for the ultimate substation layout.
Realtime was responsible for the engineering of the (4) line terminal 500kV switchyard, which consisted of (8) 500kV breakers installed in a double breaker-double bus configuration. Space was included for installation of a fifth and sixth 500kV line terminal, also with a double breaker-double bus configuration. The substation was also graded for the future 500/138kV step-down transformation and 138kV facilities. An approximate 40’ x 120’ metal control building was installed to house the substation electrical controls, metering, and communications equipment. The building also houses the 125VDC storage battery and charger, and is climate controlled, complete with well and septic facilities. A 52’ x 32’ maintenance building was designed and installed, as well as a separate 16’ x 24’ emergency generator building. Realtime also engineered a new SCADA system which has been installed.
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