Abstract
The Service and Compressor Offshore Platform operation in the Java North is served by two separate and non-parallel power plants, but their utilization is not optimal. This is due to a load imbalance, where one power plant is overloaded, but on the other hand, the power plant has a little load. It is necessary to add the platform load so that offshore oil production can be increased. However, load increasing will not be possible if the system is unmodified. On that basis, it is necessary to provide an optimal power generator service solution without having to add new transformers. In this study, parallel system implementation of two power plants will be analyzed in order to serve the load change. Thus, it is hoped that a new modification of the power plant will be formed so that product improvement can be achieved. As the development plan, the “SERVICE” platform with a capacity of 1000 kW must provide a load of 133.84% while the compressor platform generator capacity with a capacity of 750 kW only serves a load of 50.88%. After implementing the paralleling system of the two generators, the total power that can be generated is 1750kW and will serve a load of 1720 kW (98.28%). For the implementation of the new system should be analyzed in parallel feeder capability to the maximum short circuit current. Based on the p u-calculation that the main bus bar Rating is 50 kA, and the branch bus bar rating is 25 kA, whereas the maximum short circuit current is only 24.150 kA. Thus, the platform feeder ability is still above the maximum short circuit current. Finally, in principle, the plant was able to serve the load changes, but the situation is critical due to the imposition of above-normal conditions. For that, the operation of such arrangements is ideally required load shedding.
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