Medium-voltage switchgear versatility

14 February 2013

Eaton has introduced an extendable single panel version of its Xiria switchgear range for medium-voltage (MV) distribution networks.

The Xiria E has been developed for distribution substations for utilities and larger commercial and industrial applications, and is said to enable easy and economical MV switchgear configuration to meet user requirements.

The Xiria E is a single panel version of the current Xiria block-type switchgear. The modular single panel can be extended with a simple coupling connection, enabling easy future extension of secondary switchgear systems. The switchgear is suitable for applications up to 24kV and is currently available as two-, three-, four- or five-panel block-configurations.

There are two basic panel versions in the product family – a vacuum load-break switch for ring cable connections up to 630A and a vacuum circuit-breaker for protecting transformers and cable connections up to 630A. Xiria E is available for both of these. For power consumption metering a metering panel has been developed that can be connected to the current block type switchgear and the new single panel Xiria E.

Xiria switchgear is designed around Eaton’s vacuum interrupters which require no maintenance and are certified for 30,000 operation cycles. With the development of the Xiria E, a circuit-breaker with rated normal current of 630A at 24kilovolt has also been introduced in the block-type and single panel versions. This breaker type is tested for a rated short-time to withstand currents of 20kA for 3 seconds.

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