TAPMOTION® TD ISM®
Voltage regulation in evolving grid Voltage regulation has always been of vital importance in power grids. However, with the increase of renewable electricity generation, and...
byMaschinenfabrik Reinhausen (MR)
Voltage regulation in evolving grid
Voltage regulation has always been of vital importance in power grids. However, with the increase of renewable electricity generation, and with the development of smart grid, voltage stability and its regulation have become more important than ever before.
As voltage regulation is achieved by the use of tap-changers, more transformers will have to be equipped with tap-changers than before. However, changed conditions in the grid also impose new requirements for tap-changers. In essence, they have to be better designed, more reliable and continuously monitored.
Deploying an intelligent design approach, MR questions the function of every part of a tap-changer and develops solutions which guarantee to maximize the value for both transformer OEMs and end customers – utilities and industry – by offering a simpler manufacturing process, more freedom in transformer design, more reliable operation, easier maintenance, etc.
Limiting traditional solutions
Traditional solutions impose some limitations on transformer design. One of such limitations is the arrangement and positioning of the tap-changer and its control cubicle, due to the use of a rigid shaft. The shaft provides a necessary mechanical connection between the motor drive that used to be placed in the tap-changer cubicle and the tap-changer. The shaft is routed between the control cubicle and the tap-changer cover. Since the deviation between the position of the tap-changer mechanism and the motor’s rotor should be minimal, the shaft should be as short as possible. This means that the control cubicle should to be at a nearest possible position to the tap-changer, while at the same time it has to be easily accessible to workers in a transformer plant, or to maintenance personnel, or inspectors in a substation when transformer is in operation. In the end, the drive shaft is more expensive than the simple cable connection of the TD ISM®.
Routing the shaft between the tap-changer cubicle and the tap-changer might also restrict the placement of sensors and other equipment on the transformer.
TAPMOTION® TD ISM®: Intelligent tap-changer drive and much more
MR, a global market leader in the regulation of power transformers, has responded to the changing requirements of the energy technology sector with an innovative solution – the new TAPMOTION® TD ISM® motor-drive unit.
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