Example: air traffic controller
Fuse의 원리 및 선정 방법 - 도일코리아
Fuse 선정 Current limiting effect charts and curves show the amount of current a fuse will let through when clearing a fault. 25
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FUSE CHARACTERISTICS
www.dokor.com60269 part 4) If application does not meet this condition – derate current rating Example: - 200A square body fuse is mounted onto a busbar with cross sectional area 120mm2 - 2Minimum cross sectional area for 200A fuse: 200/1.3 = 154mm-120mm2 is only 70% of IEC recommended size - Thermal connection factor – 0.96
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Working with trip characteristic curves
library.e.abb.com5 - CURRENT-LIMITING CIRCUIT BREAKER: one that does not employ a fus-ible element and, when operating within its current-limiting range, limits the let-through I2t (see definition 20 AMPERES SQUARED SECONDS) to a value less than the I2t of a 1/2-cycle wave of the symmetrical prospective current. Prospective current Limited short-circuit current ...