33kV Elbow Connectors – Interface B Switchgear Transformers – Prysmian Elascon

Prysmian Interface B Elbow Connectors 33kV 36kV

Prysmian Separable Interface A Elbow Connectors are suitable for the connection of polymeric MV cables to transformers and switchgear units in outdoor or indoor installations with a continuous current rating of 400A.

Suitable for single polymeric insulation (PE, XPLE, EPR) with aluminium or copper conductors with sizes between 35 to 300mm² and 35 to 240mm²- insulation voltage up to 24kV and 33kV and operated when de-energized.

The separable elbow connector meets CENELEC HD 629.1 S2 IEC 60502-4 — NF C 33-051 — NF C 33-001, Interface B meets CENELEC EN 50180 and EN 50181 and the metal conductor contact is compliant with IEC 61238-1 class A and HN 68-S-91.

Elbow Connector MV HV Interface B 33kV

Elbow connector MV HV Interface B – Features & Benefits

No need for special tools – no heating, taping or filling
Vertical, angled or inverted position
No minimum distance between phases
Individual clamping by stainless steel brace
Energising may take place immediately after the connector is plugged into its bushings and dead end plug
Unplugged connector must not be energised
Supplied as a kit of 3 single connectors containing all the necessary components
Shipping weight and volume (approx) of kit: 6kg /0.013m³

Separable Elbow Connector (Interface B 400A) – Diagram

Separable Elbow Connector (Interface B 400A)

1. Multi-section mechanical conductor contact Al/Cu

Cover the section from 35 mm² to 300 mm². Copper or aluminium core. No need for special tools.

2. Tinned copper contact pin

Tinned copper pin, screwed into the mechanical conductor contact

3. Semi-conducting inner screen

Insert of semi-conducting EPDM enclosing the mechanical conductor contact connections so that ionization of the air remaining trapped inside is prevented.

4. Semi-conducting outer envelope (thickness 3mm)

Jacket made of semi-conducting EPDM. Its design provides relief of electrical stress as does a cable screen. Its connection to the cable screen ensures that the assembly is maintained at earth potential. It allows to evacuate the short-circuit currents

5. Insulating body

Moulded from insulating EPDM, for integral reconstitution of insulation. It maintains a uniform contact pressure on the cable insulation and on the bushing interface, providing an excellent moisture seal.

6. Test Point

Electrically protected by a cap made of semi-conducting EPDM. A capacitive voltage divider allows the checking of absence of voltage before removing the connector.

7. Locking brace

Stainless steel brace fastening the connector onto its mating bushing or other mating accessories

8. Earthing eye

For connection of the outer envelope to the metallic cable screen.

9. Moulded high permittivity reducer

Adapt the connector body to the different cables insulation diameters. Ensures watertight protection of the earthing device and enables the cable screen test.