Activities

Big projects

Simple cycle gas turbine thermal power plants

  • You provide us with the following :

    Technical data :

    • The overall layout plan of the site with the location of the various buildings and mechanical equipment
    • The scope of work carried out by the mechanic, the civil engineer and the electrician
    • List of the consumers (Auxiliary Turbines and site common services)
    • General distribution single-line diagram: HV/MV/LV
    • Site environmental constraints (ambient temperature, seismic level, keronic level) and statutory requirements (limiting pollution level, noise, discharges, etc.)
    • Specific technical constraints (equipment’s fire behaviour, maximum short-circuit level, direct current and emergency distribution equipment’s range, fitted spares, etc…
    • Required level of redundancy and automation (fully or semi-automatic)
    • Project completion schedule (engineering, construction work on site, commissioning)


    Standardisation and contractual data :

    • Applicable standards (IEC or others)
    • The contract’s contractual data (commercial and legal terms and conditions)
    • Suppliers or subcontractors imposed or qualified/li>


    Project completion schedule

  • Our engineering and design :

    Design engineering
    HV/MV/LV detailed distribution single-line diagram, balance of power, principles of electrical protection, and optimisation of the technical solutions

    Project management

    Purchases
    Basic studies, technical purchase specification

    Detail engineering
    All types of detailed electrical diagrams, installation and connection drawings, design directive drawings for civil works

    Calculations
    Setting the electrical protections, cable cross sectional areas, earthing circuits, illumination

    Planning
    Engineering, supply, factory tests, transportation, works on site, tests & commissioning on site

    Drafting the operating and maintenance manuals

  • We supply you with the following :
    • High-voltage switchyard up to 245 kV (circuit breakers, disconnecting switches, CT, VT, busbars, supporting frames, lightning arresters, line traps, etc.)
    • Emergency gen sets
    • Power transformers and auxiliaries
    • Electrical protection panels : ac generators, transformers and switchyard
    • Group circuit breakers
    • MV/LV distribution boards and lighting distribution and low-power equipment
    • MV/LV bus ducts
    • HV, MV, power and monitoring/control, fibre optic cables etc.
    • Earth cables, cable tray, lightning protection
    • Direct and undulating current distribution systems (battery chargers)
    • Communication network, oscilloperturbography
    • Communications equipment: video, access control, anti-intrusion, telephony

A concrete example

The HAMRIYAH gas turbine power plant at Sharjah in the UAE for GE/SEWA

  • Construction of the HAMRIYAH electrical power plant (phase 1 Block 1 - Block 2 - Infrastructure).
  • Installation of 4 GE type 9E : 4 x 120 MW gas turbines and the plant’s joint infrastructure.
  • Find out more

    The challenge :
    Carrying out the electrical installations: EBOP (Electrical Balance of Plant ) in line with the very short contractual deadlines.

    Requirements fulfilled :

    • Project Management
    • Organisation of the engineering by trade : dedicated teams for :
      - HV Equipment and HV/MV – MV/LV transformers
      - MV Boards– LV and distribution boards
      - Wiring and installation
      - Communications installations
    • Use of a GE eMSD software platform to organize the shipments
    • Organisation of the erection work in association with the local firms
    • Organisation and co-ordination of the commissioning work into sequenced phases to meet the customer’s requirements for the networking of the turbines


    Worth noting :
    The deadlines specified in this contract classified as a « Crash Programme » required the implementation of exceptional means in order to :

    • Deliver the first batch of equipment FCA Europe 8 months after the award of contract
    • Organise and carry out the erection and commissioning of the first two units and infrastructure 12 months after the award of contract
    • Organise and carry out the erection and commissioning of the next two units 20 months after the award of contract