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UVUF Modeling

Hello everyone,

i am wondering why no load shedding is happening even though i inputted all necessary parameters. here is my code

40003 'USRLOD' * 'UVUFBLU1' 13 1 1 20 0 7 18 906 0.7 0.2 0.025 0.6 0.1 0.025 0.5 0.05 0.05 0.05 59 0 .5 0 0 0 0 0 0 0.05/

and this happens during dynamic simulation

UVUFBLU1 AT BUS 40003 LOAD 1 STAGE 1 PICKUP TIMER STARTED AT TIME = 4.550 FREQ = 58.997

UVUFBLU1 AT BUS 40003 LOAD 1 STAGE 1 BREAKER TIMER STARTED AT TIME = 4.550

UVUFBLU1 AT BUS 40003 LOAD 1 STAGE 1 BREAKER TIMER TIMED OUT AT TIME = 4.600 50.00 PERCENT OF INITIAL LOAD SHED NO LOAD SHED FOR THIS STAGE 50.00%

----it reached my trigger frequency which is 59hz but no load shedding even activated

thank you for the answers :)