• No products in the cart.

E – 1942 How to Measure Ground Resistance and Optimize Grounding Grid

$75.00

The term ground is specified as a conducting link by which a circuit or device is connected to the earth. The link is used for establishing and keeping as closely as possible the potential of the ground on the circuit or device linked to it. A ground consists of a grounding conductor, a bonding connector, its grounding electrode(s), and the soil which is in contact with the electrode. Grounds have few basic protection applications. For natural phenomena, such as lightning, grounds are used to secure a discharge path for the current to decrease shock hazard to staff and to avoid damage to equipment and property.

For induced potentials due to failures in electric power systems with earth returns, grounds help in ensuring quick operation of the protection relays by giving low resistance fault current paths. This allows clearing the induced potential as fast as possible. The earth has to drain the induced potential before staff is injured and the power or communications equipment is damaged. In ideal conditions, to keep a reference potential for instrument safety, to protect against static electricity, and limit the equipment earth voltage for operator safety, an earth resistance needs to be 0 Ω. However, in reality, this value cannot be reached. Also, low earth resistance is demanded by NEC, OSHA, and other electrical safety codes and regulations.

This course is suitable for engineers with a desire to understand the fundamentals of earthing resistance measurements. Presented details cover issues related to different measurement methods including two and three point measurement method, fall of potential method, touch potential measurements, ground grid integrity measurements, etc. Upon successful completion engineers will be able to understand theory and practical ground resistivity measurement methods which will provide a solid understanding for further engineering work.

Prime PDH Day is back with TWO days to save big. Prime PDH sale starts Tuesday July 16 and Ends Wednesday July 17 11:59 pm, 2024.
Buy any Online Course or Webinar NOW and save 50% - as many as you need
No Limits - No Restrictions
Discount Code: PRIME24
https://nciteengineeringhub.com/

Please Join us for our next live interactive presentation tomorrow (Wednesday, 6/5, 2pmET).
https://nciteengineeringhub.com/course/live-webinar-essentials-of-photovoltaic-system-design/

ACCEPTANCE GUARANTEE


ncees

Ncite Engineering Hub engineering courses & live webinars meet NCEES Guidelines for Professional Engineer licenses renewal in all 50 states.

Ncite Engineering Hub will refund your money if the PDH credits you earn are rejected by your state board for any reason.

top
Copyright 2019 · All Rights Reserved. Ncite Engineering Hub, LLC 513 E- Main Street # 981 Charlottesville, VA 22902 USA