SEP’s Package and Unit Substations are custom-built, factory-assembled tested units. They are designed and manufactured as per customer’s specific needs. They are built in accordance with IEC standards and Saudi Electricity Company (SEC) specifications. The design is provided with high level of flexibility to cover a wide range of applications.

  • Electrical Characteristics

    • Distribution Transformer rating up to 3500 KVA

    • Ring Main Unit with two ring load break switches plus one fused switch/circuit breaker for the tee-off switching.

    • Rated impulse voltage up to 12 KV on LV side & up to 95KV / 200KV on MV side

    • Main busbars rated up to 6300A.

    • Busbar short-circuit withstand capacity up to 65KA for 1 sec (40KA for 2 sec)

    • Neutral busbars rated up to 100% of the main busbar and Earth busbars rated up to 50% of the Neutral busbar.

  • Available Options

    • Protection Class up to IP54.

    • Ambient temperature up to 55 °C.

    • Interface for Building Management System (BMS) for monitoring and controlling.

    • Tin Plating or Silver Plating for busbar

    • Bare Busbar or insulation by PVC sleeved

    • RAL 7035 color as standard, other colors on request

    • With Main Interface breaker (only) or With outgoing breaker (without Main breaker)

    • With Main and outgoing breakers.

  • Modular Construction

    • Compact and flexible modular design conserves space.

    • Customizable to special dimensions according to customer needs.

    • All compartments with independent doors for easy operation and maintenance.

    • Provision of efficient ventilation to prevent excessive rise in temp.

  • Easy Access

    • Accessible from all compartments sides.

    • Removable gland plates and cable at the base of substation assembly for easy termination of

    • HV and LV cables.

    • Direct cable connection between RMU and Transformer.

    • Direct copper connection between Transformer and LV distribution.

  • Safety

    • Type tested in accordance with IEC 61330 standard for higher safety.

    • Comply with SEC specifications

  • Mechanical Strength

    • Use of electro-galvanized sheet 2.0 to 3.0 mm thick for frame.

    • High turn frequency of frame structure ensuring greater mechanical strength and toughness.

    • Steel segregation between all compartments

 
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