By Topic

Application of MOV and gapped arresters on noneffectively grounded distribution systems

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)

Conditions under which the substitution of a metal-oxide varistor (MOV) arrester for a gapped silicon carbide arrester of similar rating would have been inappropriate are examined with reference to the 33 kV Staten Island system, fed from the Fresh Kills and Fox Hills Substation, in New York City. The investigation indicates that steady-state overvoltages greater than 1.73 per unit are possible on backfed systems. Saturation of transformers cannot be relied upon to decrease steady-state overvoltages even when these voltages approach 2.0 per unit. Unigrounded systems are found to have high steady-state overvoltages regardless of neutral impedance. It is demonstrated that the use of an MOV on a unigrounded system having backfeeds can result in very high arrester ratings which are costly, large, and provide greatly reduced margins. It is concluded that, under conditions of high steady-stage overvoltages during fault conditions, a gapped arrester may prove to be the best solution

Published in:

Power Delivery, IEEE Transactions on  (Volume:6 ,  Issue: 2 )