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Satisfied customers return

Satisfied customers return

Shaft generator overhaul.

In the past, EMRI overhauled generators of the MV Skandi Foula. The agency was very happy with the results and speed of the process, they hired EMRI again. This time for a sister vessel, the Skandi Rona.

The overhaul concerned a Siemens 1FJ2 633-8SB92, 1620 KVA shaft generator.

When disassembling the generator in our workshop, it was evident that there has been a short circuit in the main windings. At closer inspection the short circuit was pinpointed in one single groove in the main stator. This caused the windings to burst out. This process involved a lot of heat, which in turn melted together the lamellae of the iron core. This has been skillfully removed to protect it from happening again in the future. After this repair, the iron core was repainted and rewinded. When inspecting the rotor no damage was found.

The bearingseating and rotor axle were worn out and needed repairs too. These were repaired by our mechanical workshop. Following up on this repair, all bearings were replaced, which is standard procedure.

The original voltage regulator has been replaced by a EMRI LX10.2. Because we have a large stock of voltage regulators it is possible offer high quality solutions for electrical problems.

To finish the overhaul, the generator is tested on our test bench under supervision of DNV and received maritime use approval.

Bram de Vreede
Bram de Vreede

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