Hello,
We replaced the bearings of a motor. After commissioning the vibration acceleration levels on the DE side (consisting of two bearings) are high. However, they decrease significantly after the lubrication operations.
The vibration velocities in mm/s remain stable.
What conclusions can...
I aim to simulate the ABB ACS1000 VFD in ETAP. However, I am encountering an issue where the current VFD model in ETAP allows for only a single power input, whereas the ABB ACS1000 VFD features two power inputs, as depicted in the photo. Is there a way to address this limitation?
Hi All,
I would like to have your thoughts on what coud be the cause of a detachment of a phase of the rotor winding from the slip ring, an explosion was seen. the détachement was internal as you can see on the photo attached.
the moment of the failure the relay tripped by (blocked rotor/direct...
Dear All,
What could be the cause of the Neutral point unbalance fault in the inverter while the motor is running at low speed?
For information this is the sequence of events
183.58.3 "NP Voltage "
183.72.1 "AMC: Fault Class 2 "
6.21.7 "INU Tripped "
6.21.19 "INU...
Hello everybody
Can someone give me an idea where i can find Damage curves of electrical equipment, i'm studying a selectivity in an electrical substation
Hi everybody,
I tried to start short circuit study case, but it appears that fault: THE CONDUCTOR/WIRE COORDINATE SHOULD NOT BE ZERO
can someone help me to fix it