Author: Julio Peralta via TowerTalk <towertalk@contesting.com>
Date: Sun, 29 Sep 2019 14:51:22 -0400
Does anyone have any experience using a clamp on ground resistance meter? I bought one to use to help with my grounding project but don't have any experience using this type of meter. Any advice woul
I bought an inexpensive one on ebay and used it to measure my ground rod field. It came with a calibration loop and I also made a cal loop with a resistor and it checked ok. A pretty cool meter. An i
I have no personal experience. Here is a site that might be helpful: https://electrical-engineering-portal.com/measure-ground-resistance-clamp-meter That said, what is your ground system's purpose,
Yes, they work well. Ensure it's calibrated every time you use it. You should ensure it's not measuring a loop, that will give errors. Single point or off a master ground bar feed is the right place
My consulting practice in the design of large sound systems bought an expensive unit (about $2K 20 years ago) that worked in the range of 2 kHz. It stayed on my shelf when I closed the business about
Hmmm.. Every other reference I see about using one of these says that a loop is required. On 10/2/2019 11:00 AM, Bryan Fields wrote: On 9/29/19 2:51 PM, Julio Peralta via TowerTalk wrote: Does anyone
The loop you want to measure is the single rod through the earth to multiple rods or a very low R ground such as a building Ufer. Start with two rods connected with a wire, put the meter on that wire
Can I infer that a 3-legged tower with 3 ground wires, each with multiple rods would have a total ground resistance of each wire's resistance in parallel? I.E. 1/R wire1, etc? -de John NI0K Grant Sav
Approximately. The meter is measuring the sampled leg against the parallel resistance of the other two legs (if there is no other connection). So if the reference parallel resistance is low then the
An over-simplification, because there is mutual inductive coupling between nearby rods. All the instruments I've seen for this purpose work at power or audio frequency, but lightning is an RF event!