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.