High Voltage Outdoor Terminations up to 245 kV – Dry and Fluid filled type with Composite insulators including link boxes. Composite terminations for voltage classes up to 245 kV operate under severe environmental conditions. Composite housings with creepage lengths up to 31 mm/kV are available for the most common and extremely pollution levels, according to IEC 60815 standard.
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Parameter
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Operates in SF6 and insulating liquids like transformer oil
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Corona shield at top of Transformer termination provides shielding for terminal
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Dry interfaces, no oil-filling
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Pressure-tight resin housing
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Prefabricated and factory-tested silicone-rubber stress cone
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Torque-controlled or wedge-type multi-contact conductor bolt
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Insulated cable gland for sectionalization
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Type tested according to IEC 60840 and IEC 62067 standards
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Design Data
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Rated kV
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36/69 (72.5)
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76/132 (145)
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127/220 (245)
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Diameter over insulation range
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38.40mm - 77.4 mm
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38.40 mm - 95.10 mm
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64.0 -123.1 mm
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Diameter over sheath
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≤120mm
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≤140 mm
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≤160 mm
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Cable screen type
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Corrugated Al. sheath, Copper wire, Copper tape, Lead sheath, etc.
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Corrugated Al. sheath, Copper wire, Copper tape, Lead sheath, etc.
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Corrugated aluminium sheath/Lead sheath/Cu wire. etc.
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Max. Cross section (Al/Cu)
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≤1200 mm²
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≤1600 mm²
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≤2500 mm²
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Conductor connection
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Mechanical (shear off bolts)/Wedge connector
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Mechanical (shear off bolts)/Wedge connector
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Mechanical (shear off bolts)/Wedge connector
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Material of Housing
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Epoxy Resin
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Epoxy Resin
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Epoxy Resin
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Material of connection bolt
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Aluminum Alloy
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Aluminum Alloy
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Aluminum Alloy
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Method of stress control
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Geometric
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Geometric
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Geometric
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Type of Stress Cone
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Pre-moulded silicone rubber
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Pre-moulded silicone rubber
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Pre-moulded silicone rubber
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Corona Shield (only for Transformer Termination)
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Aluminium Alloy
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Aluminium Alloy
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Aluminium Alloy
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Installation temperature
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0 °C - +40 °C
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0 °C - +40 °C
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0 °C - +40 °C
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Operation temperature
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-55 °C - +55 °C
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-55 °C - +55 °C
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-55 °C - +55 °C
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Storage temperature
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0 °C - +40 °C
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0 °C - +40 °C
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0 °C - +40 °C
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Technical information
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Relevant Standard
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IEC 60840
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IEC 60840
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IEC 62067
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Rated voltage Uo/U (Um)
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kV
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36/66 (72.5)
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76/132 (145)
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127/220 (245)
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Rated frequency
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Hz
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50
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50
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50
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Lightening impulse voltage 1.2/50µs
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kVp
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350
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650
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1050
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AC Voltage withstand test (15/30 min)
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kV
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90
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190
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254/318
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Partial Discharge 1.5Uo (kV)
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pC
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≤5
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≤5
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≤5
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Rated Current
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kA
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as per cable
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as per cable
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as per cable
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Rated Short Circuit Current (conductor) 1s
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kA
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as per cable
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as per cable
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as per cable
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Rated Short Circuit Current (sheath) 1s
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kA
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as per cable
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as per cable
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as per cable
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Creepage distance (min.)
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mm
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254
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410
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475
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Electrical Data for 72/145/245 kV GIS / Equipment Extra High Voltage Termination
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