The United Nations predicts that around 68 percent of the world’s population will live in cities by 2050, and the number living in megacities will continue to rise. So how will this affect the power grids and equipment of the future? Reinhausen has joined forces with other premium suppliers to answer that very question, presenting their findings at the TRANSFORM 2019 exhibition in Hong Kong.
Seven Solutions For More Energy
With more and more people pouring into cities, power grids are increasingly being pushed to their limits. Here, we show you the challenges that this brings and how innovative products from the Reinhausen Group can help to overcome them.
Although energy requirements and demands on transmission capacity are soaring, space in cities is limited. In light of this, installing more cabling is the only way to meet the increasing demands for energy.
The solution: Mobile testing systems
Commissioning tests will become more important as a result. With the help of HIGHVOLT’s mobile testing systems, power transformers, high-voltage cables, and gas-insulated switchgears will go into operation safely. When the systems are up and running, the HiRES Dynamic Event Indicator (DEI) helps to identify dynamic events in network equipment.
The number of electric vehicles and the proportion of energy generated by renewable sources are set to rise even further in the future, putting increasing strain on power grids.
The solution: An intelligent network management system
What can you do when grids become more volatile due to the use of renewable energies? Reinhausen has teamed up with PSI Software AG to develop a solution for control systems. With this solution, operators are able to dynamically overload transformers for the first time and safely mobilize previously untapped thermal reserves. This is based on status data from the transformer as well as forecasted weather and load data.
The strain on grids is rising as a result of increased energy demand and insufficient network expansion. Knowing the transformer’s exact status is becoming more and more important, as it is the only way it can be controlled intelligently. However, as digitalization increases, so do fears about hacking.
The solution: Intelligent transformers
Through ETOS®—the Embedded Transformer Operating System — Reinhausen is providing an open, modular system solution for monitoring, controlling, regulating, and digitalizing power transformers. All the data collected in the transformer is analyzed and evaluated using intelligent algorithms. IT security was therefore the top priority even in the early stages of developing ETOS®. The system provides maximum protection from external cyber attacks.
It is becoming increasingly necessary to gather precise information about a piece of equipment’s current status, which is why more and more data is being requested.
The solution: Intelligent sensors
Intelligent sensors and protective devices are needed to control and monitor equipment. They provide data that is vital for digitalization and intelligent control, thereby enabling the equipment to be operated smoothly. Reinhausen provides a broad portfolio of sensors in the products from its MESSKO subsidiary. For example, the MSENSE® DGA monitors the gas content in oil, while the MESSKO® MTeC® EPT303 is a highly intelligent solution for controlling ventilation systems—both of which are essential when operating at overload.
Grids are becoming increasingly complex and the amount of usable information is rising with each passing day. Intelligent control and monitoring systems are required to aggregate the data.
The solution: Fleet monitoring
The TESSA® FLEET MONITORING solution developed by Reinhausen creates a status display out of the data collected at the transformer, so it is the perfect intelligent tool for monitoring all your equipment. Thanks to its real-time monitoring, grid operators can extend maintenance intervals and reduce the number of on-site system inspections. With the early warning system, operators can intervene before a fault occurs, preventing the need for costly repairs.
Compact equipment with high power output are playing an important role in densely populated metropolitan areas. In addition, environmental protection is an issue that is gaining in significance.
The solution: High-temperature tap-changers
Reinhausen provides high-temperature on-load tap-changers and de-energized tap-changers, that get considerably better performance out of ester-filled transformers. High-temperature transformers are therefore able to achieve the same performance with a reduced size, or higher performance with the same size—making space-saving solutions possible even with increased energy demands. In addition, esters are an environmentally friendly alternative to mineral oil and minimize risks in the event of damage to the system.
The need to invest in the energy grid is becoming more pressing than ever before, but funding for new equipment is limited. Intelligent aids help grid operators decide how to spend their money wisely.
The solution: Fleet management
How is my transformer fleet doing? To find out, you can use the manufacturer-independent TESSA® FLEETSCAN 2Dfleet management solution to identify critical units at an early stage. The two-dimensional assessment matrix incorporates, firstly, the likelihood of functions failing. The failure risk index provides important reference points for the grid operator’s maintenance strategy. The second dimension then considers the loss-of-life and is important for making long-term investment decisions.
These seven challenges are based on the results of a study on megacities that was commissioned by Reinhausen and its TRANSFORM partners. The study was carried out by the global engineering consulting firm P3. The aim was to find out which problems and challenges would arise from increased urbanization. To do this, P3 surveyed 39 experts from the energy sector.
Do you have any questions about the transformers of the future?
Dr.-Ing. Martin Wolfram is happy to answer your queries:
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