High-Voltage Protection Refurbishments Aureos IDEC Limited can provide in-house total Electrical & ICA Services – Design, Panel Assembly, Site Installation, Testing, Commissioning, and back-up services including: –

• Replacement of obsolete primary protection and auxiliary relays associated with long established substation switchgear sites.
• Provision of new microprocessor protection relays fitted and prewired off site to panel fabricated facias. This minimises system feeder overall outage periods for installation, testing and commissioning.
• Protection scheme design, specification and procurement of protection and auxiliary relays, panel components, panel metalwork and installation materials.
• Preparation of scheme drawings, wiring diagrams, metalwork detailing, provision of installation documentation, site work programme, method statements, risk assessments, test schedules, wiring test sheets, commissioning test records and “as commissioned documentation”.
• Design and installation work content established at each substation. Existing protection relay wall frames or freestanding panels surveyed to determine the extent of metalwork replacement and agree protection relay layout. Installation methodology determined for sequence outage of panels at all substations. Cable supply and installation work associated with protection and supervisory control finalised.
• Fabricated panel metalwork comprising full panel front plates, relay projection collars or replacement panel doors fitted out with protection relays and control components. Each assembled unit prewired and wiring point to point tested in readiness for site installation.
• At programmed work location and applicable protection panel redundant protection relays and associated wiring removed. Panel metalwork modification content undertaken either by ‘Plasma’ cutting techniques at vibration sensitive panel suites or direct metalwork cutting performed at standalone panels. Panel front plates mounted, and pre-wiring connected to internal panel components and terminals. On installation completion panel functionally tested and commissioned with customer’s engineer in attendance.

Aureos IDEC provides a high-quality electrical design associated with the construction of new and the refurbishment of existing 132kV, 33kV, and 11kV substations including:

• Main Transformers
• Transformer Protection Panels
• Transformer AVC Panels
• 33kV and 11kV Switchboards as required
• Outdoor 132kV, 33kV and 11kV Switchgear as required
• 110V dc Battery Charger and Distribution Systems
• LVAC Switchboards.
• SCADA systems including RTUs for the remote control of the circuit breakers
• Small power, heating and lighting associated with switch house buildings

Our scope of work for this type of project usually follows the following format:

Attend the substation together with the nominated civil engineering designers and the main contractor to ascertain and agree the scope of work covered by this project. Discuss all practical options available and present these finding in the form of a scope of work document.

Following the acceptance of the scope of work document IDEC then specify the following equipment:

• Specification of the new switchboard covering fault levels, protection current & voltage transformer class and ratio, number of feeders, incomer, and bus sections, etc.
• Specification of SCADA system requirements, digital input, digital output, and analogue signal details
• Specification of 110Vdc battery charger & distribution system including standing load requirements, maximum switching currents expected, discharge times, etc.
• Specification of LVAC 415Vac and 11KVac switchboards and prepare associated drawings to enable them to be built
• Prepare transformer protection panel schematic, wiring and general arrangement drawings to enable the panels to be built
• Prepare transformer AVC panel schematic, wiring and general arrangement drawings to enable the panels to be built
• Prepare drawings to enable the site installation team to interface the existing transformer and tap-changer to the new protection & AVC panels
• Prepare drawings to enable the site construction team to fully re-wire the existing switch house for small power, heating, lighting, and de-humidification requirements
• Prepare site layout drawings to detail all major & secondary items of plant
• Prepare cable block diagram, site cable schedules and core termination sheets to enable the site construction team to complete the project

Aureos IDEC provides high-quality HV substation installation and commissioning services including:

• Air Insulated outdoor switchgear & conductor systems
• Indoor medium voltage switchgear
• Protection/Control and SCADA systems
• Multicore / multipair cabling
• Earthing Systems
• Associated LV / Control equipment
• Dismantling & disposal of redundant equipment

Our staff carry a wide range of DNO authorisations and are backed by a comprehensive support and logistics organisation to ensure man and material are at the right place, at the right time.

Our commissioning engineers are fully conversant with all types of modern switchgear and protection equipment and have a good knowledge of legacy equipment that is critically important when working on brownfield sites. We are equipped with the latest test equipment including three phase programmable relay tests sets and are equipped with the necessary software to permit the test of the most complex devices.

We can package the above with the design & supply of protection / control and SCADA systems and the provision of other equipment, such as battery / charger systems to provide a full balance of plant service to our customers, under the control of an in-house project management team.

Our competency-based approach to health and safety management brings with it many benefits and our management team are committed to ever improving levels of performance through the development of our services team.

Aureos IDEC operates its own in-house manufacturing facility. This gives the company control of all aspects of design, manufacturing, testing, installation, commissioning, maintenance, and training. With these being provided on site, it allows the design and efficient manufacture of both standard and factory-built assemblies in accordance with the customer’s specifications.

We provide panels for all types of control schemes including Protection and Control, Relay Logic, and Instrument and Control Panels and Desk.

Aureos IDEC also custom builds Motor Control Centres and L V Switchgear Systems. The MCCs would be designed, built, and tested in accordance with BSEN60439-1 1994, IEC 439-1 1985 and BS 5486 1990. We supply ASTA certified Busbars from 600 to 4000 Amps with short circuit capabilities of 25kA for 1 sec, 50kA for 3 sec, and 80kA for 1 se.

We can supply fixed and withdrawable compartments and up to Form 4 Type 7 construction.

The low-voltage switchboards would have ASTA certified Busbars from 100 to 700 Amps, up to 100kA 3 sec withstand capabilities and up to Form 4 Type 7 construction.

Aureos IDEC also designs and builds in-house HV Packaged Sub Stations and Control Rooms.

The Design includes:

• Single Line and Power Distribution diagrams.
• Detailed Specifications of the HV & LV Switchboards
• The S/S Protection Design Schematics and Wiring Diagrams
• Specification and design of the SCADA System, the 110v battery system, UPS etc.
• Control schematic and wiring diagrams
• Substation Installation Design including Layouts, Block Cabling Diagrams, Site Cable Schedules, and Core Termination sheets

Aureos IDEC has a comprehensive design service and management system which is available for completing in full (or part) the following phases of a customer’s project:

• Site Survey, Front End Design and Feasibility Study Work
• CAD and updating Client Drawings and Engineering Documentation
• Instrumentation and Electrical Designs
• Control and Management Information Systems
• Project Management, Procurement, Inspection, and Installation Supervision
• Testing, Installation and Commissioning of Process Plant
• Maintenance, Operation and Performance Evaluations of Client’s Plant
• Operator Training, Electrical Safety Training and Safety Management

In support of the Aureos IDEC electrical and instrumentation design teams are the control and management systems specialists.

Aureos IDEC ‘s expertise in the areas of RTU’s, PLC, SCADA and DCS systems has been developed steadily over the years. Our personnel have experience in many varied systems and protocols.

Our engineers have designed, built, and commissioned most functional types of protection relays and systems and are conversant with many of the major manufacturers’ relays and operating systems.

Our commitment is to identify the need accurately, providing our customers with the most flexible and cost-effective solution, giving full account of existing control systems and future expansion possibilities.