OMICRON monitoring solutions selected for major power cable project in Belgium

Chosen OMICRON monitoring system assesses partial discharge activity and insulation condition in power cables to prevent failures

Elia, the power transmission system operator in Belgium, has selected a permanent on-line partial discharge (PD) cable monitoring system from OMICRON for its Stevin project. This project is a major undertaking by Elia to reinforce the high-voltage (HV) power grid in Belgium’s Flanders region. Installation of the OMICRON cable monitoring system will start in the spring of 2016.

One part of the extensive Stevin power grid renewal project consists of laying four 380 kV power cable circuits in the ground, each over a length of 10 km between the grid substations Gezelle and Van Maerlant in Flanders. The OMICRON PD monitoring system will be permanently installed at each of the terminations and joints along these buried HV cable circuits to continuously assess PD activity and insulation condition in the cables. The monitoring system will also assess cable sheath currents during standard operation to detect fault conditions.

Customized system design

The OMICRON PD cable monitoring system consists of high-frequency current transformers for the detection of PD and data acquisition units connected via daisy chain to a data concentration unit in the substation. From there, the pre-processed PD data will be transmitted to a dedicated monitoring server in Elia headquarters for evaluation and documentation using the system’s monitoring software.

Flexible system interfaces for correlation with other monitoring data

Other types of monitoring data, including temperature points from an external distributed temperature system (DTS), can be stored in the OMICRON monitoring system’s database for correlation with the PD data. Likewise, the PD monitoring data can be transferred to an external SCADA system or asset management software applications for correlation with other types of data collected on the grid.

Complete monitoring support services

In addition to working closely with Elia on the customized design of the complete PD monitoring system, OMICRON will also install and commission the monitoring system on site and provide operators with training and data analysis support, as well as condition status reporting. These reports consist of an analysis of the current insulation condition compared with previous monitoring data, as well as a recommendation for further action when required to ensure continued reliable operation of the cables.

PD monitoring essential for maintaining reliable operation

In defining the Stevin cable project, Elia and the Flemish government agreed to implement all technical solutions available to ensure the safe and reliable operation of the new cable system. PD monitoring was chosen as an important aspect for maintaining its HV cable system as it detects defects in cable insulation, which cause eventual failure and costly outages. Using the actionable data provided by PD monitoring systems, cable operators can make timely maintenance and repair decisions to extend service life.

About OMICRON

OMICRON is an international company serving the electrical power industry with innovative testing, monitoring and diagnostic solutions. The application of OMICRON products allows users to assess the condition of the primary and secondary equipment on their systems with complete confidence. Services offered in the area of consulting, commissioning, testing, diagnosis and training make the product range complete.

Customers in more than 140 countries rely on the company’s ability to supply leading edge technology of excellent quality. Service centers on all continents provide a broad base of knowledge and extraordinary customer support. All of this together with a strong network of sales partners is what has made OMICRON a market leader in the electrical power industry.

About Elia

The Elia Group is organized around two electricity transmission system operators (TSOs): Elia Transmission in Belgium and 50Hertz Transmission (in which Elia has a 60% stake), one of the four German transmission system operators active in the north and east of Germany. With 1,900 employees and a transmission grid comprising some 18,300 km of high-voltage connections serving 30 million consumers, the Elia Group is one of Europe’s top 5 players in the European TSO business. It efficiently, reliably and securely transmits electricity from generators to distribution system operators and major industrial consumers, while also importing and exporting electricity from and to neighboring countries.

The Group is a driving force behind the development of the European electricity market and the integration of energy generated from renewable sources. In addition to its system operator activities in Belgium and Germany, the Elia Group offers businesses a range of consultancy and engineering services. The Group operates under the legal entity Elia System Operator, a listed company whose reference shareholder is municipal holding company Publi-T.

Press contact

OMICRON Energy Solutions GmbH

Marketing Communications

Scott Williams

scott.williams@omicronenergy.com

www.omicronenergy.com