I have a maintenance question to ask of all my learned colleagues out there.
Is it worthwile to perform Predictive Winding Imbalance testing on Low Voltage motors on a set frequency?
No online systems installed. Specific motors: 280kW, 380 V. Monitoring will be by shutting down the motor...
I searched further as I found reference to these words "umlimited and limited arcing fault" in more than one place. An ABB website gave a description:
"Testing AS/NZS 3439.1;2002
In the "Standard" arc fault containment tests set out in LV standard AS/NZS 3439.1, the arc is initiated on the load...
Gents and Ladies. I have searched the forum to find any info relating to hotspot detection on busbars.
I have a problem where we cannot perform any busbar inspections on our 1000V +300kA busbars for our smelter pots. These busbars are trenched, and where they run between potlines, these...
Morning gents/ladies
I am looking for a good explanation or a source that can explain what is meant by Limited and also Unlimited arc fault containment in Switchboards and MCC's (magnitude, time, flying objects etc), and what the advantages of one above the other is. I have fragmented...
