Electroalfa

Products and services

Secondary Distribution Switchgear

The secondary distribution switchgear are being used on the medium voltage side of the MV/ LV transformer substations (in concrete or metal enclosed compact transformer substations, purpose built transformer substations, junction points), for the supply of public buildings (hospitals , office buildings, residential areas, stadiums, airports, supermarkets), for supply of industrial units (refineries, cement factories, shipyards, photovoltaic and wind power stations).

The Electroalfa secondary distribution switchgear are for indoor use, metal enclosed, with single busbar system, expandable and are used in the medium voltage secondary distribution systems up to 24kV voltage, rated current in continuous operation up to 630A and rated short-time withstand current up to 20KA.

The equipment comply with the technical standards of nationwide power distribution companies such as CEZ Group, E.ON AG, Electrica SA (regional electricity operators).

Technical data
Rated voltage Ur 24kV
Rated current Ir 630A
Rated short-time withstand current Ik maximum 20kA
Rated peak withstand current Ip maximum 50kA
Resistence to frontal and side electric arc maximum 16kA

Technical data extended text: Medium voltage switchgears for secondary distribution (.pdf)


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