Nexans Euromold Tee Connectors for HV Cable Connections of Wind Turbines

Nexans Euromold Tee Connectors

Nexans Euromold tee connectors are designed for terminating high voltage XLPE power cables into compact switchgear to make optimum use of limited installation space.

Nexans, the worldwide leader in the cable industry, has extended its well-proven range of compact high voltage (HV) connectors with two new tee-shaped connectors designed specifically for use with compact switchgear and transformers now being specified for wind turbine applications. The Nexans Euromold M430TB connector is for use with higher voltages (up to 33-36kV) and the M434TB connector is for higher currents (up to 1,250 A).

Trend Towards Compact Switchgear for Wind TurbinesNexans M430TB M434TB Connectors - Wind Turbines
The growing trend towards using ever more compact high voltage switchgear in wind turbines has resulted in smaller cable boxes, limiting the space available for connectors. Nexans has responded to this challenge by developing its new asymmetric tee-shape connectors to create a compact connection solution. This now enables two cables to be connected in the same space required for one cable using a traditional non-compact connector. As well as being ideal for all applications where space is a limiting factor, the Nexans compact connectors also enable users to increase the capacity of an existing installation.

EPDM Jacket: A Key Design Feature for Safety and Reliability
The Nexans Euromold M430TB and the M434TB are separable tee-shape bolted connectors designed to connect high voltage polymer-insulated cable to wind turbine equipment such as switchgear and transformers- they can also be used for cable to cable connections with the appropriate mating parts. A key design feature is the thick (3 mm) EPDM (Ethylene Propylene Diene Monomer) rubber conductive insulation jacket that provides a total safe to touch screen for personnel safety, this is both more reliable and longer lasting than the painted silicone rubber insulation used in many connectors.

M430TB: Almost Twice as Compact as a Traditional Connector
The Nexans Euromold M430TB connector is suitable for voltages from 11-12kV up to 33-36kV and cable cross-sections from 35 mm2 up to 300 mm2 (11-12 and 24 kV) and 50 mm2 up to 240 mm2 (33-36 kV).  When used as a single connector it is just 183 mm deep, this compares with 255 mm for an equivalent non-compact connector. For double-connection, the epoxy insulating plug can be replaced by the 300PB coupling connector -this enables two cables to be connected in a depth of only 290 mm, compared with 500 mm for a non-compact version.

M434TB: Specifically Designed for the New Generation of Larger Turbines
The Nexans Euromold M434TB connector is also 183 mm in depth, however it is intended for the larger cross-section cables that will be required to carry the greater currents produced by the new generation of larger turbines, especially in offshore applications. For voltages from 11-12 kV up to 33-36kV, the M434TB can be used with cable cross-sections from 185 mm2 up to 800 mm2.

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Video : ABB SafeWind. SafeWind, ABB's tailor-made switchgear for wind turbines, is the slimmest medium-voltage switchgear on the market and small enough to fit through the narrow doorway of the turbine tower. Designed specifically to meet the switchgear requirements of wind turbine manufacturers for compactness, safety and flexibility, SafeWind is a complete range of secondary distribution gas-insulated switchgear for onshore and offshore applications in the global wind power market.