POWER TRANSMISSION - ONSHORE SUBSTATIONSA safe and reliable distribution of electrical energyis the basis of any modern society.

For any onshore substation project,Ramboll provides servicesthroughout the project lifecycle;from basic design, specifications,procurement, calculations,installation procedures andcommissioning to maintenanceplanning. When committing to a project,Ramboll offers not only engineeringand procurement competences, butwill also provide projectmanagement with reference toRambolls ISO 9001 certification.

Ramboll competences

At Ramboll our competences arebased on worldwide projectexperience for Engineering,Procurement and Contracting(owner's engineer) of substations,with voltage levels varying fromtransmission level to distributionlevel. Our field of experience includesoutdoor and indoor substations, as

well as internal high voltagedistribution in power plants andlarger industrial installations.Ramboll delivers a multi-disciplineservice covering electrical design,automation and civil works.We support our client in all interfacehandling upstream and downstreamcovering all disciplines from relaycoordination to communication.

Onshore wind farm substations

In addition to the deliveriesnormally considered for substations,Ramboll can supply a full range ofconsultancy services for onshorewind farm projects.Our services include Interfacemanagement towards the windturbine manufacturer as well as:• Transient stability and harmonic

analyses• Engineering of array cables• Optical fibre layout• Network design• Grid code compliance• Wind turbine SCADA and park

control

RAMBOLL GROUP A/S

CONTACTJohn AmmentorpHead of departmentAutomation and Electrical systemsPhone +45 5161 6380jona@ramboll.com

Furthermore, Ramboll is able todeliver the design basis of the windturbine foundations.

Power generation

Ramboll has extensive experiencewithin internal power distribution inpower plants and waste incinerationfacilities. Our experience covers HVdistribution, fast bus transfersystems, generators andmagnetization, transformers andrelay protection. We have coherentexperience with power plantautomations systems.  

DESIGNING A SUBSTATION

• At Ramboll we strive to address the challenges ofutilising continuously evolving technology, driven mainlyby the development within data acquisition andsubstation automation.

 • Ramboll will in cooperation with the client, proactively

participate in interface management which is consideredto be a vital key to mutual success.

 

• Delivering high quality as-built documentation, providingthe client with optimal conditions for operation andmaintenance.

 • During construction, the main focus is on work

place safety, closely coordinated with the clients facilitymanagement

Electrical design

At Ramboll we believe in closecoorporation with the clientthroughout all phases of a project.Only through open dialogue asatisfying solution can be achievedfor the future O&M organisation. Ramboll has expert knowledge in allaspects of electrical design andproject execution within thefollowing areas:• Electrical layout (Single Line

Diagram)• Grid connection• Load flow calculations• HV distribution• Main and aux. transformers• Relay coordination• LV systems (LVAC, LVDC, UPS)• Earthing system• VAR compensation  We provide static og transientsimulations of the elctrical designusing PowerFactory - DIgSILENT orPaladin Designbase.

Substation automation

Substation automation is a vital partof a substation project. All controland monitoring of HV equipmentand auxiliaries are normally carriedout from a centralised control room. This increases requirements to thecomplete communicationinfrastructure and the controlhardware implemented. At Ramboll we offer a wide-rangingservice covering:• Design and specification of

substation automation• Logical and physical network

design• Line of Sight solutions• Optical fibre layout We have expert knowledge withinimplementation of station buscommunication and signalexchange toward third parties andupstream SCADA systems. 

Civil works

Through many years of experiences,Ramboll is a competent partner indelivering solutions forinfrastructure and structural design.Our experience range from arcticconditions, rock blasting oroperating in urban areas. Our services include:• Roads• Foundations, including oil sumps• Buildings• Cable ducts• Fencing/access control• Lightning protection For larger indoor substationsRamboll offers architecturalservices, and detailed engineeringof lighting and HVAC. Ramboll handles all servicesincluding project management,design, authority approvals, supply,procurement, site supervision andconstruction management.

LEFTRefurbishment ofKoltrop 220/70 kVsubstation .  RIGHTRefurbishment of 150kV Studstrup PowerStation