Schweitzer Engineering Laboratories SEL-351S - Sensitive Earth Fault (SEF) Channel IN (0.05 A Nominal); Test Methods

13-4 Testing and Troubleshooting Date Code 20010112
SEL-351S Instruction Manual
<RXFDQWHVWWKHUHOD\SURFHVVLQJPRGXOHXVLQJVLJQDOVIURPWKH6(/576/RZ/HYHO5HOD\7HVW
6\VWHP1HYHUDSSO\YROWDJHVLJQDOVJUHDWHUWKDQYROWVSHDNSHDNWRWKHORZOHYHOWHVW
LQWHUIDFH)LJXUHVKRZVWKHVLJQDOVFDOLQJIDFWRUV
-+?>398


7KHUHOD\FRQWDLQVGHYLFHVVHQVLWLYHWR(OHFWURVWDWLF'LVFKDUJH
(6':KHQZRUNLQJRQWKHUHOD\ZLWKIURQWRUWRSFRYHU
UHPRYHGZRUNVXUIDFHVDQGSHUVRQQHOPXVWEHSURSHUO\JURXQGHG
RUHTXLSPHQWGDPDJHPD\UHVXOW
<RXFDQWHVWWKHLQSXWPRGXOHWZRGLIIHUHQWZD\V
 0HDVXUHWKHRXWSXWVIURPWKHLQSXWPRGXOHZLWKDQDFFXUDWHYROWPHWHUPHDVXUHVLJQDO
SLQWR*1'SLQDQGFRPSDUHWKHUHDGLQJVWRDFFXUDWHLQVWUXPHQWVLQWKHUHOD\LQSXW
FLUFXLWVRU
 5HSODFHWKHULEERQFDEOHSUHVVWKHIURQWSDQHO
0(7(5!EXWWRQDQGFRPSDUHWKHUHOD\
UHDGLQJVWRRWKHUDFFXUDWHLQVWUXPHQWVLQWKHUHOD\LQSXWFLUFXLWV

)LJXUH/RZ/HYHO7HVW,QWHUIDFH
Sensitive Earth Fault (SEF) Channel IN (0.05 A Nominal)
)RU6(/65HOD\VZLWK6()FKDQQHO,1WKHIROORZLQJDSSOLHVWRWKHLQSXWPRGXOHRXWSXW-
LQ)LJXUH
P9$7120,1$/&855(17$FKDQQHO,1
Test Methods
7HVWWKHSLFNXSDQGGURSRXWRIUHOD\HOHPHQWVXVLQJRQHRIWKUHHPHWKRGVWDUJHWFRPPDQG
LQGLFDWLRQRXWSXWFRQWDFWFORVXUHRUVHTXHQWLDOHYHQWVUHFRUGHU6(5
7KHH[DPSOHVEHORZVKRZWKHVHWWLQJVQHFHVVDU\WRURXWHWKHSKDVHWLPHRYHUFXUUHQWHOHPHQW
37WRWKHRXWSXWFRQWDFWVDQGWKH6(57KH37HOHPHQWOLNHPDQ\LQWKH6(/65HOD\
LVFRQWUROOHGE\HQDEOHVHWWLQJVDQGRUWRUTXHFRQWURO6(/2*,&

&RQWURO(TXDWLRQV7RHQDEOH
WKH37HOHPHQWVHWWKH(3HQDEOHVHWWLQJDQG37&WRUTXHFRQWUROVHWWLQJVWRWKHIROORZLQJ
 (3   YLDWKH6(7FRPPDQG
 37&   VHWGLUHFWO\WRORJLFDOYLDWKH6(7/FRPPDQG