HV Cable Terminations (Dry Compact) | SF6 Gas Insulated Switchgear & Oil Filled Transformers

---

High Voltage Cable Terminations for Oil Filled Transformers & Gas Insulated Switchgears

The Sudkabel HV Cable Terminations for Oil Filled Transformers and Gas Insulated Switchgears are built-in dry compact HV Cable Terminations consisting of two variants, offering high voltage and extra high voltage operating voltages from 72.5kV up to 550kV. Engineered to provide safe, efficient, and space-optimised high voltage connections, the EHSVS HV Cable Termination is designed for Gas Insulated Switchgears, used in SF6 enclosures and the EHTVS HV Cable Termination, designed for use in Oil Filled Transformer enclosures.

Sudkabel Dry Compact HV Cable Terminations are available with a variety of insulator types (Types G, D, A/B, E/F & C), these EHV HV Cable Terminations are built to the exacting Power Cable Standards of IEC 62271-209 and are compatible with a wide range of conductor sizes, providing flexibility to a number of electrical application areas, such as Gas Insulated Switchgear, Oil Filled Transformers, HV Cable Connections in Substations and Turnkey Energy Projects. Sudkabel‘s modular design and pre-assembled components ensure quick installation, long-term reliability, and minimal maintenance.

Contact our experts – we’ll provide you with the ideal solution for your operations.

---

EHSVS & EHTVS Technical Specifications & Selection Guide

The following provides a complete insight on the EHSVS & EHTVS HV Cable Terminations range of insulator types (Types G, D, A/B, E/F & C), including a technical specification and selection guide:

Sudkabel EHSVS & EHTVS HV Cable Terminations (Dry Compact) Technical Specifications
Voltage Level (Um)	Types	Conductor Range (mm²)	Impulse Voltage (kV)	Rated Current (A)	Short-Time Current (kA/s)	Rated Peak Current (kA)	Cable Standards	Max. Longitudinal Force Effect (kN)
72.5kV	G, D, C	95 – 800	350	Up to 3150	40 / 3	100	IEC 60840	10
123kV – 170kV	A, B, D, C	150 – 2500	550 – 750	Up to 3150	Up to 63 / 1	170	IEC 60840	10
245kV – 300kV	E	400 – 2500	1050	Up to 3150	63 / 3	170	IEC 62067	10
362kV – 550kV	F, H	500 – 3200	1175 – 1675	Up to 3150	63 / 3	170	IEC 62067	10

Type G – Up to 72.5 kV

• Compact termination for lower voltages

• Compliant with IEC 62271-209

• Suitable for both SF₆ and oil applications

Types A / B – 123 to 170 kV

• Single-phase epoxy resin insulator

  

  1. Corona Shield 2. Connector 3. Pluggable Current Contact 4. Epoxy Resin Insulator 5. Silicone Rubber Stress Cone 6. Inlet With Inner Spring Assembly 7. Screen Connection 8. Clamp Support 9. Cable Clamp 10. XLPE-Insulated Cable

• Identical outer geometry; different internal plug interfaces

• Type B supports conductors up to 2500 mm²

Type C – 72.5 to 145 kV (SF₆-only)

• Common three-phase epoxy resin insulator

• Integrated stress cone with spring and pluggable contact

• Optimised for compact GIS cable entries

Type D – 72.5 to 145 kV

• Similar to A/B, but for lower voltage classes

• Single-phase epoxy resin insulator

• Dual enclosure compatibility (SF₆ and oil-filled)

Types E / F / H – 245 to 550 kV

• High-voltage single-phase designs

• Type H supports conductor cross-sections up to 3200 mm²

• Standardised interface dimensions per IEC 62271-209

• Based on proven A/B mechanical design

All insulators types for the above-mentioned compact terminations – with the exception of Type C – can be used for the cable enclosures in both SF6 enclosures as well as in Oil Filled Transformer enclosures in compliance with EN 50299-1/-2 (or similar) using the same pluggable parts. The HV Cable Terminations for Oil Filled Transformers are labelled EHTVS, the only technical difference being one or two additional corona shield(s).

---

Sudkabel Compact HV Cable Terminations Standards

♦ IEC 62271-209

This standard defines the mechanical and electrical interface dimensions for connecting high-voltage cables to Gas Insulated Switchgear (GIS). It ensures:

• Interoperability between components from different manufacturers

• Safe dielectric clearances and standardized plug-in geometries

• Reliable performance in high-voltage environments up to 550 kV

It is critical for ensuring compact terminations like EHSVS/EHTVS properly mate with GIS equipment and maintain safe insulation distances.

♦ IEC 60840

The IEC 60840 standard defines the mechanical and electrical interface dimensions for connecting high-voltage cables to Gas Insulated Switchgear (GIS). It ensures:

• Interoperability between components from different manufacturers

• Safe dielectric clearances and standardized plug-in geometries

• Reliable performance in high-voltage environments up to 550 kV

It is critical for ensuring compact terminations like EHSVS/EHTVS properly mate with GIS equipment and maintain safe insulation distances.

♦ IEC 60840

The high-voltage counterpart to IEC 60840, this standard applies to:

• HV cable systems operating above 170 kV, including 245, 300, 362, 420, and 550 kV

• Rigorous testing of electrical endurance, partial discharge behaviour, mechanical stress, and short-circuit capability

It governs the performance of Types E, F, H, where system voltages and fault currents are significantly higher, demanding strict compliance to ensure grid reliability.

---

Südkabel | EHV HV Cable Joints, Terminations & Connectors

Thorne & Derrick | Distributors, Stockists & Suppliers

With over 125 years of experience, Südkabel has been at the forefront of market-leading cable technology, particularly in the development of XLPE-Insulated Cables. Südkabel’s product portfolio includes XLPE Power Cables up to 550 kV and EHV & HV Cable Accessories such as Plug-in Terminations, Compact Terminations, Outdoor Cable Terminations, Dry & Solid Outdoor Cable Terminations, Silicone Rubber Heat Shrink Cable Joints, as well as accompanying Cable Materials.

Contact Thorne & Derrick today – offering 40+ years of industry experience, we distribute the most extensive range of MV HV Medium & High Voltage Cable Joints, Terminations & Connectors from manufacturers including Südkabel, 3M, Prysmian, Nexans Euromold, Elastimold, Pfisterer CONNEX & SEANEX and Shrink Polymer Systems.

Data Sheets

• Sudkabel Cable Accessories for EHV HV Cables | Catalogue
  Download