What is this, what is it used for?
The boys dug it up when plowing electric cable. It was not located so seems to be private. (A note was left for the homeowner, but no response yet). No signs of security cameras and it wasn't running between two buildings, just seeminly out in the middle of...
We know the cause was lightning, I just want to understand why...
Single phase underground line with a lightning arrestor and line fuse at the TP pole (terminal pole - where the line goes from OH to UG). The line has 15 or so padmount transformers on it, serving 20 or so customers. All tubs...
I have a form from a telecomm company that is requesting the Ground Potential Rise (GPR), Distance to 300V GPR Boundary, etc. I am looking for typical 'ballpark values'... my calculations give me a pretty far distance for the 300V GPR Boundary. The calculations seem really straight forward...
What relay would you put on a transrupter and why? We are pretty blue so I've got a few things in mind. SCADA capabilities are a must for time-stamping and analogs - since you can't do much control with a transrupterbut... it's better than fuses ;)
you can't fix stupid
I'm having some issues here. It seems like it should be so straight forward. I'm trying to follow the testing instructions per the manual but I'm not having any luck. I can hear the relay buzzing when I apply current but do not get a trip. I am ramping to the pickup value. Anyone have any...
