I was in the field last month and was told that CTs are used for protection purposes. Being a non-electrical engineer, I assume that the CTs measure the current through the CT and trip a protection relay.
This would make sense if there was a single cable through a CT. However, it looked like...
Pretty novice question. Which of these type of valves have limitation in opening against full pressure on one side (due to potential for seal or other damage):
- Ball Valves
- Gate Valves
- Butterfly Valves
- Globe Valves
I was told that you had to have a bypass line to balance the pressure for...
