The TBVN FPSO turret is equipped with an Electrical Slip Ring assembly - ESR5000 - which allows for thenecessary electrical power transmission between the shipside (FPSO), some components of the swivelstack on the turret side (Geostationary side) and the facilities installed on WHPA. The ESR assembly iscomposed of three different sections of Rings and Brushes (i. Normal and Emergency LowVoltage power feeders 450V, ii. Low Voltage UPS 120V feeders units A and B, and iii. Medium VoltagePower transmission to WHPA - 4160V, sections A and B -). The full assembly is installed inside a NEMA4X (IP66) enclosure, certified Class I Zone 1 AEx de MB T3 / Class I Div 2 Group CD T3.
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