Two Bays of 230kV GIS breaker-and-a-half addition
Two bays of 230 kV GIS breaker-and-a-half addition in an extremely condensed substation footprint.
Project Included:
Electrical/Physical, Civil/Structural, Protection & Control
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Added new 230/138kV, new green field substation with two 230/138kV transformers supplied from the new 230kV GIS substation via new 230kV transmission lines.
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Upgraded existing 69kV substation in conjunction with new 230kV GIS supplies.
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New 230kV dead end structures were provided for the terminations of four 230kV overhead transmission lines.
230kV GIS Substation
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New 230kV, 2 Bay, BAAH GIS substation GIB Connections to four (4) terminations of 230kV OH circuits
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230kV connection between new GIS station to new, on site, 230/138lV station
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New control house with new AC & DC systems, for new relay systems associated with the GIS switchyard and interface to existing control house and existing relay systems
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Dead End structures for the four (4) OH circuit terminations
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Exits for two future 230kV future underground cables from the GIS building
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New 230kV, 100mvar switched shunt reactor addition]
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Breaker replacements and circuit addition in existing 230kV AIS switchyard
New 230/138kV Substation
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Design for new green field substation including two, 150mva, 230/138kV transformers
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New control house with new relay system, AC & DC aux power, etc.
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138kV breakers
69kV Yard Upgrades
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Upgrades to existing 69kV switchyard associated with upgrades to the 230kV switchyard
