Our solution

New technology requires grids to be highly reliable, and the transition to renewable forms of energy puts pressure on the system as well. Therefore, we need to make clever grid investments – now. dLab will help you get a smart grid that is digitalised, efficient and reliable – with one solution.

Data-driven management, automatization and security of supply. These are some of the main issues DSOs need to consider regarding future smart grid investments. Data-driven management is in fact a new way of working, using data analysis for operational and strategical decision-making. Advanced data analysis can monitor the flow and defects of a grid in real-time, allowing for greater automation of troubleshooting and predictive functions. Also, it may make proactive operations and maintenance possible, increasing grid reliability.

dLab’s dInsight analytics platform provides a decision support system including a broad set of features and services. The platform enables DSOs to take small incremental and measurable steps towards a more effective, robust, and reliable grid through a deeper understanding and a more data-driven organization.

The platform allows for a step-by-step process:

  • connect and collect grid data
  • analyse to unlock critical information
  • categorise and visualise
  • set the information in meaningful context and transform into actionable knowledge.

These are crucial steps for the adoption of a true data-driven behaviour. The achieved understanding facilitates an informed and fact-based decisions-making process that can be incorporated into operations and maintenance, in turn leading to clear business values.



Case Stories

Faulty load disconnector

Short fault event

In a robust cable network, with very few faults detected over time, supplying a city center, a short fault event occurred. Having no overhead line on the affected feeder, and the event being very short, a faulty component in a secondary substation rather than a cable fault was suspected.

Short fault event

Investigation

A team was sent out to inspect the substation on the affected feeder. A load disconnector showed traces of flashover in one of the phases. PD measurements with hand-held equipment were carried out in the station to verify the ocular inspection. The faulty component turned out to be the arc chamber on the load disconnector.

Result

The load disconnector was replaced with a newer type of disconnector. The work was planned and entailed no cutting of the electricity for customers.

Without early warning this fault could have led to a trip of the entire substation, leaving thousands of customers without power for between 30 minutes and over an hour.

Case Stories

High ohmic earth fault

Recurring earth faults

In one of the feeders of a primary substation located in a rural area, 17 incidents of recurring high ohmic earth faults (>8 kΩ) were registered over the course of about 1 hour.

Recurring earth faults

Investigation

A quick overview of the map identified a possible area as the source of the incidents. A team was dispatched to investigate the line going through the wooded area. At the scene, the team was able to quickly determine that an energy forest planted below the lines, had grown wild. At the slightest wind, the tops repeatedly touched the overhead line.

Result

A trimming of the treetops in the energy forest was conducted and a potential outage prevented.

Case Stories

Proactive fault detection

Many starts

Operation engineers noticed abnormally many starts (31 over the course of ~30 hours) of the directional earth fault protection for a feeder in one of their primary substations. The detected temporary recurring earth faults were nearly identical. The algorithm determined the origin of the directional earth fault protection to feeder 23. A start of the zero-sequence voltage protection for the feeding transformer was also identified.

Investigation

An additional investigation of the substation connected to feeder 23 was initiated. There was apparently an occurrence of overload in a fuse load disconnector, where moisture had been a contributing factor.

Proactive fault detection

Result

A heat fan was installed in the substation as a temporary solution, while awaiting a new component. As a result, the team prevented an outage.


See how it works

Get an overall picture of our solutions and how they can help you in your digital transformation – supporting datadriven behaviour and more efficient grid operations.

Read about the details

Connected technology and cutting-edge knowledge makes us who we are. Find out more about the technology behind our solutions and their technical set up.

Learn how to use it

We are keen on spreading the useful knowledge that can be gained from using our solution. Our webinars, basic and advanced levels, are geared to make datadriven incident analysis a way of working.