Marthinusen & Coutts performs complex breakdown repair of failed aging 30 MW generator rotor
Sappi’s 30MW generator rotor undergoing dimensional checks in M&C’s 140 t precision lathe that takes a 40 t work piece, 11 m long and a swing of 3.2 m.

Marthinusen & Coutts performs complex breakdown repair of failed aging 30 MW generator rotor

Over a period of less than five months Marthinusen & Coutts’ (M&C) recently performed comprehensive repairs to the rotor of an aging 30 MW generator which had failed during operation at Sappi’s Saiccor pulp mill in Umkomaas, KwaZulu-Natal.

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Marthinusen & Coutts’ fault finding and redesign rectifies synchronous motor vibration problem
M&C’s Large Motors Test Facility Chargehand Alwyn de Bruin monitors the final tests on the 17MW motor at the division’s Cleveland facility after completion of the necessary repairs to the motor’s stator

Marthinusen & Coutts’ fault finding and redesign rectifies synchronous motor vibration problem

Introduction In early-2020 a large South African petrochemical company asked Marthinusen & Coutts (M&C) to establish the cause of excessive vibration in a 17MW 11kV 4-pole synchronous motor that is…

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