Oil Resistor Starters: These workhorses manage the starting sequence of large motors. We recently serviced oil starters on a mill and a fan that revealed just how applicable proactive maintenance can be. If you’re operating oil resistor starters manufactured more than 15-20 years ago, especially if you’re experiencing any of these symptoms: Unreliable starting sequences […]
Oil Resistor Starters Read More »
1. Major findings While refurbishing this old EPM3 LRS on a shredder, severe arcing damage was found where the busbars pass through the shorting contactor floor into the tank. The arcing was between the busbars and the metalwork of the busbar floor, hidden by the top slit-plate and a bottom pipe flange. It only became
Modifications to prevent flashing inside a very old EPM3 LRS on Shredder at a Sugarmill Read More »
To answer this question, we need to start by answering: What is the difference between ‘Starts per hour’ and ‘Number of consecutive starts’? How can it used to specify an LRS for an 8MW Ball mill at an ambient temperature of 42°C? A) Starts per Hour * “Starts per Hour” is defined for the purposes
WHEN DO I NEED A COOLER FOR MY LRS? Read More »
