SAES Standards - High Voltage (HV) Substations

The SAES (Saudi Aramco Engineering Standards) for high-voltage substations ensure compliance with local and international standards, focusing on safety, reliability, and efficiency.

Key SAES standards for high-voltage substations include:

SAES-P-100: Basic Power System Design Criteria

  • Establishes guidelines for the overall design of power systems, including load flow, short-circuit analysis, and system stability.
  • Includes fault level calculations and coordination with protection systems.

SAES-P-101: Medium and High Voltage Power Systems Design

  • Covers design requirements for power systems exceeding 1 kV.
  • Focuses on voltage selection, system earthing, and redundancy requirements.
  • Ensures proper sizing and layout for transformers, switchgear, and feeders.

SAES-P-104: Wiring Methods and Materials

  • Specifies acceptable wiring methods, including conduits, cable trays, and junction boxes.
  • Defines requirements for cable insulation, bending radius, and installation practices.

SAES-P-114: Insulation Coordination and Equipment Ratings

  • Provides guidance for selecting equipment ratings, including voltage, current, and withstand capabilities.
  • Aligns with IEC 60071 (Insulation Coordination).

SAES-P-119: Power System Substations

  • Governs the design, construction, and operation of substations.
  • Includes specifications for layout, busbar configurations, and clearances.
  • Focuses on safety measures, including fire protection and physical security.

SAES-P-121: High Voltage Cable Systems

  • Specifies the installation, termination, and testing of high-voltage cables.
  • Covers cable joints, accessories, and compliance with IEC 60840 for cables exceeding 30 kV.
  • Emphasizes testing methods, including high-potential (Hi-Pot) and partial discharge testing.

SAES-P-123: High Voltage Transformers and Reactors

  • Details specifications for power transformers and shunt reactors.
  • Includes requirements for losses, cooling methods, and protection systems.
  • Covers factory and site testing in compliance with IEC 60076.

SAES-P-124: Surge Protection Devices

  • Guides the selection and application of surge arresters to protect against transient over voltages.
  • Aligns with IEC 60099 for metal-oxide surge arresters.
  • Specifies installation locations and testing requirements.

SAES-P-127: Testing and Commissioning of Substation Equipment

  • Outlines procedures for testing and commissioning all substation components.
  • Includes functional testing for switchgear, transformers, relays, and control systems.

SAES-P-136: Substation Automation Systems (SAS)

  • Specifies requirements for automation, including SCADA integration, communication protocols, and cybersecurity.
  • Aligns with IEC 61850 for substation communication networks.