110 kV CBs and CB-CT Foundation

Equipment Foundation Drawings

The following CB/CT pads are utilised for all standard TP period supplied 110 kV CBs and CTs. The CB/CT pads have been designed to be used at all Transpower sites with two different widths dependant on seismic acceleration. They can also accommodate being cast-insitue or precast offsite if required. In addition cast in bolt cages or "Chemset" or similar HD bolts can be used.

NOTE: The SLS2 for the design of the stand and foundation was checked for a 250-year return period (RP) and is therefore outdated with respect to the current requirement to use a 500-year RP. The SLS2 needs to be checked for site-specific conditions before applying this design

Dwg/Sheet No.DescriptionLink to RedEye
TP63096/1110 kV CB/CT foundation design criteriahttps://transpower.redeyedms.com/artefacts/search?artefact=5642768
TP63096/2110 kV CB/CT, DCB/CT and DCB/BSP foundation design noteshttps://transpower.redeyedms.com/artefacts/search?artefact=5643554
TP63096/3110 kV CB/CT foundation for ABB LTB 145 D1/B operating mechanism type MD150https://transpower.redeyedms.com/artefacts/search?artefact=6117232
TP63096/4110 kV CB/CT foundation for Siemens 3AP1FG (no longer used)https://transpower.redeyedms.com/artefacts/search?artefact=5559330
TP63096/5110 kV CB/CT foundation for Alstom GL312-F1 (no longer used)https://transpower.redeyedms.com/artefacts/search?artefact=5559417
TP63096/6110 kV DCB/CT foundation for DCB type ABB LTD 145 D1/B operating mechanism type BLK 222https://transpower.redeyedms.com/artefacts/search?artefact=6113607
TP63096/7110 kV DCB/BSP foundation for DCB type ABB LTD 145 D1 operting mechanism type BLK 222https://transpower.redeyedms.com/artefacts/search?artefact=6117244
TP63096/8110 kV CB/CT foundation for CB type ABB LTD 145 D1/B operating mechanism type MSD1https://transpower.redeyedms.com/artefacts/search?artefact=5703699
TP63096/AllAll abovehttps://transpower.redeyedms.com/artefacts/search?q=@TP63096

Hypact CB Foundation

Dwg/Sheet No.DescriptionLink to RedEye
TP76848/1110 kV Alstom HYpact switchgear foundation design criteriahttps://transpower.redeyedms.com/artefacts/search?artefact=5954693
TP76848/2110 kV Alstom HYpact switchgear foundation design noteshttps://transpower.redeyedms.com/artefacts/search?artefact=5671865
TP76848/3110 kV Alstom HYpact switchgear foundationhttps://transpower.redeyedms.com/artefacts/search?artefact=5719370
TP76848/AllAll abovehttps://transpower.redeyedms.com/artefacts/search?q=@TP76848

CB Manufacturer Drawings

The following drawings represent basic circuit breaker information.  For more comprehensive details, refer to the manufacturer's installation/operational manual for more detailed information.

Drawing No.Manufacturer/ModelLink to RedEye
1HSB425450M975ABB : 145 kV SF6 Breaker LTB 145D1/B Operating Mechanism MSD1https://transpower.redeyedms.com/artefacts/search?artefact=5398391
1HSB425450M212ABB : 145 kV SF6 Breaker LTB 145D1/B Operating Mechanism MD150https://transpower.redeyedms.com/artefacts/search?artefact=5062575
1HSB100013M126ABB : 145 kV SF6 Breaker LTB 145D1/B Operating Mechanism BLK222https://transpower.redeyedms.com/artefacts/search?artefact=5398911
1HSB100013M155ABB : 145 kV SF6 Disconnecting Breaker LTB 145D1/B Operating Mech BLK222https://transpower.redeyedms.com/artefacts/search?artefact=5815650
3HM42704990067-B01Siemens : 145 kV Triple Pole Circuit Breaker 3AP1FG Layouthttps://transpower.redeyedms.com/artefacts/search?artefact=5604744
2033088/1Alstom Grid : 145 kV, 3150A, 40 kA Circuit Breaker GL312F1 Layouthttps://transpower.redeyedms.com/artefacts/search?artefact=5908673
2033088/2Alstom Grid : 145 kV, 3150A, 40 kA Circuit Breaker GL312F1 Datahttps://transpower.redeyedms.com/artefacts/search?artefact=5908702
MB8668-10-2038618/1Alstom Grid : 145 kV HYpact Circuit Breaker - General Layout https://transpower.redeyedms.com/artefacts/search?artefact=5399475
MB8668-10-2038618/2Alstom Grid : 145 kV HYpact Circuit Breaker - CT Arrangement https://transpower.redeyedms.com/artefacts/search?artefact=5279711
MB8668-10-2038618/3Alstom Grid : 145 kV HYpact Circuit Breaker - General Specificationhttps://transpower.redeyedms.com/artefacts/search?artefact=5400060
MB8668-10-2038618/4Alstom Grid : 145 kV HYpact Circuit Breaker - Mech Box Layout https://transpower.redeyedms.com/artefacts/search?artefact=5400311
SR8668-10-2038618Alstom Grid : 145 kV HYpact Circuit Breaker - Single Line Diagramhttps://transpower.redeyedms.com/artefacts/search?artefact=5401057

Design Report

DocumentUpdated
Common 110 kV CBCT Foundation Design Report [ pdf 3.25 MB ]Oct 2008
Standard Foundations for Switchyard Equipment - Review of Reinforcing Steel [ pdf 178.66 KB ]Oct 2015