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Achieving full electrical network visibility, operational resiliency, and a future-ready digital foundation

• Improve the visibility across substations and feeders through real-time power monitoring
• Evaluate the existing network to identify areas for improvement
• Identify and implement digital and physical upgrades in a phased approach to avoid disruptions
• Plan accordingly for additional upgrades to add advanced distribution and outage management systems

The existing network was comprised of 9 substations and 40 secondary substations, with a combination of legacy and new substation equipment.  To reducing outage duration, unintended tripping, and operational blind spots, they decided against deploying a traditional SCADA system limited to monitoring. Instead, the project introduced a phased digital journey—starting with visibility and evolving toward advanced distribution management and resiliency. In Phase 1, a smaller group of 4 substations was selected for the case study focusing on increasing visibility of the network. Within this group, they were able to integrate both new and legacy infrastructure and existing OEM systems into the study while work was done to develop the corresponding electrical digital twin. This virtual representation of the electrical network was helpful to start to evaluate the efficiency of the existing system. During Phase 2, visibility of the electrical network was extended to all other primary and secondary substations, and additionally, control functionality and intelligent load shedding was implemented. The case study also included planning for the next phase, which will integrate geospatial analysis, an ADMS, OMS, and integrated operator training. 

The network topology was continuously changing, and legacy systems did not provide the level of operational awareness required. We were looking for a solution that gives us greater visualization and a better understanding of what’s happening in our network. 
— Alvin Naidoo, Managing Director, Altek 欧美A片

ETAP App – Mobile data collection and verification to support the accurate electrical modelling of the existing system and for ongoing on site updates

ETAP Power Simulator - Comprehensive electrical network modeling and analysis, including:

• Unified Electrical Digital Twin – To build and analyze a virtual representation of the existing electrical network where the field, model, and SCADA environment remain synchronized
• Load Flow Analysis  – To identify overload conditions on cables and transformers and identify areas to optimize the electrical network
• Short Circuit Analysis – To evaluate the ratings of the existing switchgear
• Protection and Relay Coordination – To check for mis-coordination in the event of a fault

ETAP eSCADA

• Real-time model-driven electrical visualization and analysis
• Data acquisition and control hardware
• Customizable HMI viewers
• Notification system with alarm, event, trending and tabular views
• Integrated analysis and operational decision support

• Comprehensive vendor-agnostic solution to support existing and new equipment
• Accurate electrical network analysis and 'what if' evaluations to identify areas for improvement
• Real-time operational visualization
• Easy to use power monitoring and control systems across multiple platforms - even for new electrical operators
• Flexible and modular network management system that can be continuously evaluated and improved while maintaining high efficiency and usability

The team’s first activity was to model the electrical network, which involved information-gathering such as the careful analysis of existing facility plans, updating these plans as needed, and performing in-person substation walkthroughs to capture additional site information. With the electrical digital twin of the 4 substations completed in Phase 1, load flow, short circuit and relay protection and coordination analysis studies were able to be performed on the existing network. After this, it was possible to focus on the hardware assessment and new equipment upgrades to prepare for real-time visualization and control, using IEC Standard 61850 for IED and RTU connection of new equipment, and IEC 60870-5-104 for RTU to the SCADA Master Station equipment. In some cases, where legacy equipment remained, to obtain communications data the IEC 104 protocol was used with Modbus OEM RTUs. Multiple manufacturer RTUs were programmed accordingly to bring them into the digitalized electrical network.

Once this was accomplished, it was possible to gain full visualization of the network in real-time to determine how to proceed by evaluation using ‘what if’ scenarios. Customized tools were prepared so that operators and engineers could quickly identify issues with the network, including HMI viewer, web interface, and smart phone viewer. In the final stage an electrical SCADA system was deployed with multiple views for real-time operational monitoring and control.

Prevent downtime through greater operational visualizations

• Greater operational visibility across substations and feeders

• Faster fault identification and response

• Reduced outage duration and unintended tripping

• Improved operator confidence and efficiency

• Easier onboarding of new operators

The case study has prepared the municipality for Phase 3, including plans to implement Advanced DMS, GIS integration, OMS, and operator training simulation.

We now have a very user friendly interface which allows beginners through advanced users to easily access the system and do what is required.
Alvin Naidoo, Managing Director, Altek 欧美A片