How to test 47 Phase unbalance protection in SEPAM relays? | Schneider Electric New Zealand

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How to test 47 Phase unbalance protection in SEPAM relays?

In this case we are going to explain about two scenario to test Ansi code 47.
47 is phase unbalance protection resulting from phase inversion, unbalanced supply or distant fault which is detected by the measurment of negative sequence voltage(Vi).
Please check the attached file.
AEDL3

Released for: Schneider Electric New Zealand

Attachment(s)

FA295564.pdf

[1.31 MB]

Published on:24/08/2016Last Modified on:18/08/2023

Range:

Sepam series 80

Sepam series 60

Sepam series 40

Sepam series 20

Range:

Sepam series 80

Sepam series 60

Sepam series 40

Sepam series 20