Project overview

Morson Projects’ specialist power division, Ematics, were appointed by Drax Power Ltd to provide 11kV Enabling Works for a biomass project at their biomass Power Station.


A new Supervisory Control & Data Acquisition (SCADA) Control System was introduced to allow the control and monitoring of their electrical distribution system including refurbished breakers, new 11kV Biomass Switchboards (11kV incomers, bus couplers and feeders), 11kV/415v step down transformers and 415v Biomass Switchboards (415v feeders switchgear and bus couplers). The electrical systems also included a new essential supplies system including all batteries, chargers and UPS equipment.

The SCADA Control System comprised dual redundant control processors, I/O racks, power supplies and associated hardware in the LV switchroom. Dual SCADA servers, 2 Operator Workstations and 2 Engineer’s Workstations were provided in the Control Room to allow centralised remote monitoring and control of the complete electrical distribution system.

The SCADA Servers communicate with the control processors via a dedicated fast Ethernet fibre optic ring network. There are also interfaces to the existing Reporting System, alarm system and industrial defence system.

The following systems and services were designed and installed:

  • PLC & HMI Control System
  • SCADA System
  • Fibre Optic Ethernet Architecture
  • ABB Switchboard
  • Remote I/O

Our team added value to the project through:

  • Installation, Testing & Commissioning
  • Flexible Approach
  • Innovative Solutions
  • Value Engineering
  • Compliance with Drax Standards

Intelligent Relay Interface: The control system monitored a number of Intelligent Relays in the electrical Switchrooms via numerous industry standard communication protocols plus Hardwired I/O. The link type used was dependent upon the data being monitored, however serial interfaces provided a means for collecting time and date stamped data.

Hardwired I/O links were used for a number of new and refurbished Breakers which were connected to remote I/O units.

Multi-drop communications networks were used between the Hot Standby PLCs and the Intelligent Relays on the 11kV Switchboards with the communications arranged such that it is possible to read values via both ports simultaneously thus providing communications redundancy in the event of a cable or network failure.

All Intelligent Relay units were provided with a web connection to the Main SCADA Fibre Optic Ring Network,  each containing a web server interface, accessible from the Engineers Workstation.

Our Services

Delivering the project requirements to an agreed Statement of Work (SOW), the Morson Projects team carried out services to include:

  • CAD Drawings
  • Containment System Design
  • Electrical Services
  • Installation
  • Network Infrastructure Design
  • SCADA Systems Integration
  • Site Surveys
  • Software Development
  • System Architecture Design
  • Testing & Commissioning