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SSC Style Dry GIS and Transformer Termination

Python® SSC style transmission terminations are designed for gas insulated substation applications on solid dielectric cable systems rated up to 550kV IEC (500kV IEEE). They are offered in the conventional version and for the Plug-in/Plug-out is available up to 245kV IEC (230kV IEEE) . Plug-in/Plug-out offers additional advantages over Conventional installation. Used in gas insulated substation and transformer applications on extruded dielectric cable systems rated u to 55kV IEC (500kV IEEE).

Features and Benefits

  • Plug-in/Plug-out – Allows for removal of the plug and provides a visual disconnect of the circuit

  • Plug-in/Plug-out – A built-in deflector reduces electrical stress by spreading out the voltage lines

  • Conventional – Stress cone is made of translucent LSR material allowing for excellent insulation properties and quality checks on the job site

  • Conventional – Pressure tight epoxy socket insulator

  • Plug-in/Plug-out – A self-locking cable connection supports cable weight for 5m with no clamping reducing the risk of system failing due to false cable hold (maximum cable size of 1600mm2 (32000kcmil)

  • Plug-in/Plug-out – Allows for changing cable without disturbing equipment

  • Conventional – Dry type design, no oil filling of the termination required

  • Conventional – Dimensions meet the requirements of IEC 62271-209

Application Range

Conductor MaterialConductor SizeInsulation Diameter**
145 (138) kV
Copper240mm²-2000mm²
(500kcmil-4000kcmil)
57.5mm-101.5mm
(2.26 in.-3.99 in.)
Aluminum*240mm²-1200mm²
(500kcmil-2500kcmil)
Plug-in/Plug-out 145 (138) kV
Copper240mm²-1600mm²
(500kcmil-3200kcmil)
57.5mm-91.5mm
(2.26 in.-3.60 in.)
Aluminum*240mm²-1600mm²
(500kcmil-3200kcmil)
170 (161) kV
Copper240mm²-2000mm²
(500kcmil-2000kcmil)
57.5mm-101.5mm
(2.26 in.-3.99 in.)
Aluminum*240mm²-1200mm²
(500kcmil-2500kcmil)
245 (230) kV
Copper400mm²-2500mm²
(750kcmil-5000kcmil
76.5mm-116.5mm
(3.01 in.-4.59 in.)
Aluminum*400mm²-1200mm²
(750kcmil-2500kcmil)
Plug-in/Plug-out 245 (230) kV
Copper400mm²-1600mm²
(750kcmil-3200kcmil)
73mm-108mm
(2.87 in.-4.25 in.)
Aluminum*400mm²-1600mm²
(750kcmil-3200kcmil)
362 (345) kV
Copper1200mm²-2500mm²
(2500kcmil-5000kcmil)
104mm-133.5mm
(4.10 in.-5.26 in.)
Aluminum*800mm²-1200mm²
(1500kcmil-2500kcmil)
550 (500) kV
Copper800mm²-2500mm²
(1500kcmil-5000kcmil)
104mm-133.5mm
(4.10 in.-5.26 in.)
Aluminum*800mm²-2500mm²
(1500kcmil-5000kcmil)
*Aluminum conductors larger than 1200mm² (2500kcmil) may require special conductor connection provisions. Contact your G&W Electric representative for additional cable sizes.

Need more information? Contact the rep in your area.