Cable Fault Detection using Multi-Zone Protection

In hybrid circuits containing both overhead lines and underground cable sections, it is advantageous to determine in which section an electrical fault has occurred. This enables an operator to auto-reclose (AR) in the event of a transient OHL fault, or to block auto-reclose in the event of a permanent cable fault. This is not typically possible if simple distance protection schemes are deployed, which will typically result in some ambiguity in identification of the faulted section, rendering auto-reclose prohibitively risky. Follow the link to read more.

Wide-area multi-ended differential protection

Through careful planning and intense collaboration, we delivered an IEC 61850 based unit protection scheme which can be operated without any buildings or networks between the multiple ends of a complex, three ended circuit spanning over 30 km. Follow the link to read more.

Centralised Substation Protection & Monitoring

Following extensive discussions with Statnett’s engineers, our development partners adapted its technology in order to resolve multiple challenges in one system: simplified busbar protection, reducing the use of copper wiring, reducing the size and complexity of substations through digitalisation, providing shadow protection schemes during upgrades of ageing protection hardware in substations, reducing scheduled outages from months to days, improving safety, robustly withstanding extreme changes in weather conditions. Follow the link to read more.

Distributed Power Quality for Offshore Generation

The importance of monitoring power quality across all turbines

Wind farm power quality (PQ) is monitored to confirm that the output is within the permitted range stipulated by grid compliance regulations. Operations and maintenance (O&M) services also require PQ measurements to monitor flicker, voltage drop, oscillations, and harmonic resonance. Follow the link to read more.

Asset Management

Global efforts to drastically decarbonise and decentralise our energy systems require more real-time visibility and control at more locations – particularly for assets which are remote or normally inaccessible. However, constraints with conventional monitoring technologies block or limit the insights which can be gained – networks of PMUs are very expensive, and the data accuracy and frequency of conventional SCADA systems is low. Follow the link to read more.

Real-time information

Applications such as dynamic line rating (DLR) or real-time thermal rating (RTTR) can benefit from combined electrical and temperature instrumentation of power system assets. This capability will enable efficient electrical infrastructure use, while catering for the enormous growth of electric vehicles and low-carbon generation. We can provide spot temperature measurements of key system components such as cable terminations which are common thermal bottlenecks – yet are not directly monitored by conventional DTS approaches. Follow the link to read more.

Automated monitoring of line sag and temperature

Our sensors measure strain, vibration and temperature directly on live conductors with all measurements  time synchronised. Follow the link to read more.

If you have any questions, please reach out to us today on +44(0)1355236057 or on our e-mail sales@itl-uk.com