110
Overload supervision (OVLD)
&KDSWHU
9HULI\LQJVHWWLQJVE\VHFRQGDU\
LQMHFWLRQ
2YHUORDGVXSHUYLVLRQ29/'
Prepare the terminal for verification of settings as outlined in section “Preparing for
test” in this chapter.
0HDVXULQJWKHRSHUDWHDQGWLPHOLPLWRIVHWYDOXHV
3URFHGXUH
&KHFNWKDWWKHLQSXWORJLFDOVLJQDOV29/'%/2&.LVORJLFDO
]HURDQGQRWHRQW0,WKDWWKH29/'75,3ORJLFDOVLJ
QDOLVHTXDOWRWKHORJLFDO
Logical signals for overload supervision protection are available
under menu tree:
6HUYLFH5HSRUW)XQFWLRQV2YHU/RDG)XQF2XWSXWV
4XLFNO\VHWWKHPHDVXUHGFXUUHQWIDXOWFXUUHQWLQDOOWKUHH
SKDVHVWRDERXWRIWKHVHWWLQJRSHUDWLQJFXUUHQWDQG
VZLWFKRIIWKHFXUUHQWZLWKWKHVZLWFK
Observe the maximum permitted overloading of the current cir-
cuits in the terminal.
6ZLWFKRQWKHIDXOWFXUUHQWDQGPHDVXUHWKHRSHUDWLQJWLPHRI
WKH29/'SURWHFWLRQ
Use the OVLD-TRIP signal from the configured binary output to
stop the timer.
&RPSDUHWKHPHDVXUHGWLPHZLWKWKHVHWYDOXHW
$FWLYDWHWKH29/'%/2&.ELQDU\LQSXW
6ZLWFKRQWKHIDXOWFXUUHQWRIVHWWLQJDQGZDLWORQJHU
WKDQWKHVHWYDOXHW
No OVLD-TRIP signal should appear.
6ZLWFKRIIWKHIDXOWFXUUHQW
5HVHWWKH29/'%/2&.ELQDU\LQSXW
4XLFNO\VHWWKHPHDVXUHGFXUUHQWIDXOWFXUUHQWLQDOOWKUHH
SKDVHVWRDERXWRIWKHPHDVXUHGRSHUDWLQJFXUUHQWDQG
VZLWFKRIIWKHFXUUHQWZLWKWKHVZLWFK
Содержание REL 531
Страница 16: ...10 Note signs KDSWHU 6DIHW LQIRUPDWLRQ ...
Страница 44: ...38 Checking the binary I O circuits KDSWHU KHFNLQJ WKH H WHUQDO FLUFXLWU ...
Страница 52: ...46 Checking the self supervision signals KDSWHU QHUJLVLQJ WKH WHUPLQDO ...
Страница 132: ...126 Two step time delayed phase overcurrent protection TOC2 KDSWHU 9HULI LQJ VHWWLQJV E VHFRQGDU LQMHFWLRQ ...
Страница 136: ...130 Testing the interaction of the distance protection KDSWHU 9HULI LQJ WKH LQWHUQDO FRQILJXUDWLRQ ...
Страница 140: ...134 Testing the interaction of the distance protection KDSWHU 7HVWLQJ WKH SURWHFWLRQ V VWHP ...