High Voltage Substation Engineering

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    High Voltage Substation Engineering

    Our scope of work often extends from layout, base and detailed designs to grounding, control, protection and schematics. It covers HV and MV panel designs as well as all phases are done to comply with specifications and optimal design.

    Scope of work of substation design may be summarized in the following tasks;

    A- Primary Design

    • Grounding system design calculations.
    • Duct banks, cable trenches layout, sections and details.
    • Lightning (shielding) protection layout and details.
    • Indoor/outdoor lighting layout details.
    • Small power distribution layout details.
    • Floor opening – switchgear control building.
    • Lightning system design calculations.
    • Operational SLD

    B- Secondary Design

    • CT/ VT sizing calculations.
    • Relays setting calculations.
    • Interlock Logic Diagram.
    • Signal point list (Scada, FR, SOE, annunciation, ……etc).
    • Interlocking logic diagram.
    • Low, MV HV voltage cables and breakers sizing calculations.
    • Battery charger sizing calculations.
    • AC/ DC SLD
    • Relay and Metering One Line Diagram / Protection Logic Diagram.
    • Auxiliary Transformer Sizing calculation.
    • Cable Schedules and Interface drawings.
    • SAS point list.
    • Modification in protection and panel’s scheme
    • Design calculation of switchgear GIS building.
    • Design calculation of control building.
    • Design calculation of switchgear building.
    • Design calculation of power transformer fi re wall foundation.
    • Design calculations of fire fighting room.
    • Design calculations of pump room.
    • Design calculations of auxiliary transformer.
    • Design calculations of capacitor bank foundation & shed details.
    • Design calculation of oil tanks.
    • Design calculations of boundary wall.
    • Design calculation of water tank, septic tank & soak pit.
    • Design of gantry & GIB foundation.
    • Design calculations of steel support structure (ST, VT, etc.)
    • Design calculations of duct bank, manhole and hand holes.
    • Design calculation for HV switchgear foundation and steel support.
    • Layout & details of foundation of columns for all types of building•
    • Layout & details of (ground floor, root floor) framing plan.
    • Staircase layout sections and rebar’s details.
    • Basement retaining wall opening and rebar details
    • Coordination between civil & electrical & mechanical teams to be sure that all openings are reflected the same in all drawing.
    • Project layout design
    • Primarily Architectural full design of substation building
    • Architectural full project details
    • Preparation of detailed BOQ.
    • Project 3D modeling
    • Project description and presentation
    • Animation modeling and walkthrough
    • Project coordination and review
    • Accompaniment of client after project approval with any technical clarification required.
    • Monitoring the project progress
    • After approval follow up with site requirements
    • As built drawing

    A-HVAC work

    • Preparation of design calculations for HVAC systems including Cooling Load, Heating Load, Ducts and Air Outlets Sizing calculations, External Static Pressure calculations, Pressurization calculations, Ventilation calculations, Fresh Air calculations, Smoke Exhaust System Calculations etc.

    using latest available software and standards.

    • Preparation of HVAC design drawings at its conceptual and detailed stages.
    • Issuing of complete package of design documents, including Ducting Layouts, Sections, Schedules of Equipment, Flow & Isometric Diagrams, Control Diagrams, and Design Calculation Report.
    • Development and coordination of the duct routing and equipment lay-outs with other disciplines.
    • Rectification of received comments and following the project until its final approval.
    • Preparation of detailed BOQ.
    • Accompaniment of client after project approval with any technical clarification required.

                 B- Plumbing Works

    • Preparation of design calculations for Plumbing systems including Hydraulic calculations, Pump sizing, System pipe sizing for Domestic water system, Hot water system, Water Tanks capacity and drainage system using latest available soft wares and standards.
    • Preparation of Plumbing design drawings.
    • Issuing of complete package of design documents, including Water Supply and Drainage Piping Layouts, Sections, Schedules of Equipment, Flow & Isometric Diagrams and Design Calculation Report.
    • Development and coordination of the water supply, drainage piping and equipment layouts with other disciplines.
    • Rectification of received comments and following the project until its final approval.
    • Preparation of detailed BOQ.
    • Accompaniment of client after project approval with any technical clarification required.
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