By spot check, I mean taking a reading at a specific voltage and time, for comparison over time. For instance 500 volts at 30 seconds. Record this reading for comparison to past readings. However I need to correct this reading for temperature. The method you posted I believe is a generic...
We use several different methods for monitoring the condition of the insulation in our motors. One method in use is a spot check. I am having a difficult time finding the correct temperaure correction factor for Class H insulation in rotating equipment. I have a chart for Class A and B. Can...
Could you tell me more about the sensor and connector you are using. Is it a lumberg of brad harrison type mini connector or something similar? Is the sensor made of metal or plastic? What is the model and manufacturer of the sensor?
Yes it could. Many VR's have adjustments for limiting excitation to a level suitable to the application. A resistor is sometimes used in series with the field to limit current. We use speed switches on some applications to turn the VR off below a set RPM. The bottom line is that the VR should be...
This is for Shotgunner. You could set up a DH485 Network. This is easier than it sounds. Simply add an 1746-NET-AIC(Advanced Interface Converter) at the PLC and another at the PanelView. Conect them with the appropriate communication cabling, and you will be able to access the PLC from either...