GIS/Equipment Terminations

Category: Raychem RPG Tag: gisequipment-termination

Specifications

Parameter
Operates in SF6 and insulating liquids like transformer oil
Corona shield at top of Transformer termination provides shielding for terminal
Dry interfaces, no oil-filling
Pressure-tight resin housing
Prefabricated and factory-tested silicone-rubber stress cone
Torque-controlled or wedge-type multi-contact conductor bolt
Insulated cable gland for sectionalization
Type tested according to IEC 60840 and IEC 62067 standards

Design Data
Rated kV	36/69 (72.5)	76/132 (145)	127/220 (245)
Diameter over insulation range	38.40mm – 77.4 mm	38.40 mm – 95.10 mm	64.0 -123.1 mm
Diameter over sheath	≤120 mm	≤140 mm	≤160 mm
Cable screen type	Corrugated Al. sheath, Copper wire, Copper tape, Lead sheath, etc.	Corrugated Al. sheath, Copper wire, Copper tape, Lead sheath, etc.	Corrugated aluminium sheath/Lead sheath/Cu wire. etc.
Max. Cross section (Al/Cu)	≤1200 mm²	≤1600 mm²	≤2500 mm²
Conductor connection	Mechanical (shear off bolts)/Wedge connector	Mechanical (shear off bolts)/Wedge connector	Mechanical (shear off bolts)/Wedge connector
Material of Housing	Epoxy Resin	Epoxy Resin	Epoxy resin
Material of connection bolt	Aluminum Alloy	Aluminum Alloy	Aluminum Alloy
Method of Stress Control	Geometric	Geometric	Geometric
Type of Stress Cone	Pre-moulded silicone rubber	Pre-moulded silicone rubber	Pre-moulded silicone rubber
Corona Shield (only for Transformer Termination)	Aluminium Alloy	Aluminium Alloy	Aluminum Alloy
Installation temperature [°C]	0 to +40	0 to +40	0 to +40
Operation temperature	-55 °C – +55 °C	-55 °C – +55 °C	-55 °C – +55 °C
Storage temperature [°C]	0 to +40	0 to +40	0 to +40

Technical Information

Relevant standard		IEC 60840	IEC 60840	IEC 62067
Rated voltage U0 /U (Um)	kV	36/69 (72.5)	76/132 (145)	127/220 (245)
Rated frequency	Hz	50	50	50
Lightening impulse voltage 1.2/50µs	kV	350	650	1050
AC Voltage withstand test (15/30 min)	kV	90	90	254/318
Partial discharge 1.5Uo (kV)	pC	≤5	≤5	≤5
Rated current	kA	as per cable	as per cable	as per cable
Rated short circuit current conductor) 1s	kA	as per cable	as per cable	as per cable
Rated short circuit current (sheath) 1s	kA	as per cable	as per cable	as per cable
Creepage distance	mm	254	410	475
Electrical Data for 72/145/245 kV GIS / Equipment Extra High Voltage Termination

Description
Reviews (0)

The dry compact GIS/Transformer termination for voltage classes up to 245 kV is designed to be installed in cable entry housings of gas-insulated switchgear (GIS)/Transformer.

Complies with IEC 62271-209 standard, which essentially specifies interfaces between termination and switchgear
Adapters available to match dimensions of wet (oil-filled) type terminations, as specified in IEC 60859
Insulator can be installed by GIS / transformer manufacturer at factory, saving installation time on-site and reducing risk of contamination of cable entry housing
No special tools required for installation
Easily separable, consists of a plug-in part and epoxy resin insulator
Transformer Terminations comply to dimensions as per EN50299 Standard