×
Follow Us
Results 1 to 7 of 7

NETA Level 2 exam XFMR tables

 Jump to latest post
    #1
  1. Skoivisto is offline
    NETA level III
    Junior Member
    Join Date
    Mar 2019
    Location
    Dayton, OH
    Posts
    2
    Reputation

    NETA Level 2 exam XFMR tables

    9. What is the NETA Recommended Minimum Insulation Resistance value for a dry-type 4,160V-480V D-D transformer primary winding?
    Your Answer: 1 Gigohm
    Help: NETA Table 100.5 (2019)

    The answers were all in Gigs...1, 5, 10, 20. The cited table doesn't recommend anything beyond Megs...what am I missing?

  2. #2
  3. Join Date
    Dec 2017
    Posts
    30
    Reputation
    Quote Originally Posted by Skoivisto View Post
    9. What is the NETA Recommended Minimum Insulation Resistance value for a dry-type 4,160V-480V D-D transformer primary winding?
    Your Answer: 1 Gigohm
    Help: NETA Table 100.5 (2019)

    The answers were all in Gigs...1, 5, 10, 20. The cited table doesn't recommend anything beyond Megs...what am I missing?

    1G would be for liquid filled.
    I would recommend understand the SI units prefixes too.
    Click image for larger version. 

Name:	maxresdefault.jpg 
Views:	2 
Size:	32.1 KB 
ID:	500
    https://www.google.com/url?sa=i&url=...AAAAAdAAAAABBL

  4. #3
  5. Kalbi_Rob's Avatar
    Kalbi_Rob is offline Experienced Member Pro Subscriber
    Join Date
    Feb 2018
    Location
    Jacksonville, NC
    Posts
    257
    Reputation
    Quote Originally Posted by Skoivisto View Post
    9. What is the NETA Recommended Minimum Insulation Resistance value for a dry-type 4,160V-480V D-D transformer primary winding?
    Your Answer: 1 Gigohm
    Help: NETA Table 100.5 (2019)

    The answers were all in Gigs...1, 5, 10, 20. The cited table doesn't recommend anything beyond Megs...what am I missing?
    5000 Megohms is 5 gigohms. For a dry-type transformer rated 601-5000V, minimum resistance is 5000 Megohms or 5 Gigohms

  6. #4
  7. Join Date
    Feb 2021
    Posts
    1
    Reputation
    Quote Originally Posted by Skoivisto View Post
    9. What is the NETA Recommended Minimum Insulation Resistance value for a dry-type 4,160V-480V D-D transformer primary winding?
    Your Answer: 1 Gigohm
    Help: NETA Table 100.5 (2019)

    The answers were all in Gigs...1, 5, 10, 20. The cited table doesn't recommend anything beyond Megs...what am I missing?
    5,000 Megohms is 5 Gigohms .

  8. #5
  9. archieb7 is offline Junior Member Pro Subscriber
    Join Date
    Dec 2020
    Posts
    1
    Reputation
    Quote Originally Posted by Skoivisto View Post
    9. What is the NETA Recommended Minimum Insulation Resistance value for a dry-type 4,160V-480V D-D transformer primary winding?
    Your Answer: 1 Gigohm
    Help: NETA Table 100.5 (2019)

    The answers were all in Gigs...1, 5, 10, 20. The cited table doesn't recommend anything beyond Megs...what am I missing?
    5 Gig.

  10. #6
  11. Join Date
    Jun 2017
    Posts
    9
    Reputation
    Quote Originally Posted by Skoivisto View Post
    9. What is the NETA Recommended Minimum Insulation Resistance value for a dry-type 4,160V-480V D-D transformer primary winding?
    Your Answer: 1 Gigohm
    Help: NETA Table 100.5 (2019)

    The answers were all in Gigs...1, 5, 10, 20. The cited table doesn't recommend anything beyond Megs...what am I missing?
    1 gig is equal to 1,000 meg. as is 5 gig to 5,000 meg. It is sort of a trick question, just to make you keep on your toes.

  12. #7
  13. Join Date
    Jul 2020
    Location
    Washington, United State
    Posts
    44
    Reputation
    Quote Originally Posted by Skoivisto View Post
    9. What is the NETA Recommended Minimum Insulation Resistance value for a dry-type 4,160V-480V D-D transformer primary winding?
    Your Answer: 1 Gigohm
    Help: NETA Table 100.5 (2019)

    The answers were all in Gigs...1, 5, 10, 20. The cited table doesn't recommend anything beyond Megs...what am I missing?
    5000Mega=5Gega

Subscribe

Login or register to leave a reply!


Share this thread

Related Topics

  1. Replies: 2
    Last Post: January 28, 2021, 04:03 AM
  2. How to best prepare for Neta Level 2 exam?
    By electricity in forum NETA Level 2 Exam
    Replies: 4
    Last Post: July 28, 2019, 08:20 AM
  3. Passed NETA Level 2 Exam 11/5/18
    By E-DivMafia in forum NETA Level 2 Exam
    Replies: 2
    Last Post: December 21, 2018, 07:15 PM
  4. Passed NETA Exam Level 2 11/7/18
    By Jtryon1 in forum NETA Level 2 Exam
    Replies: 2
    Last Post: November 8, 2018, 09:07 PM

Tags for this Thread

Follow us


Explore TestGuy


NETA Certification Training


NICET Electrical Power Testing


Help and Support