Anyone please help me!!?

Science & Mathematics by Anonymous 2018-06-01 11:04:03

Social Science

4 answers

In below figure, please explain: What is FU1: ________________________ What is the voltage between H1 and H3: ______________________ What is the voltage between X1 and X3: ______________________

Anonymous

FU1 is a fuse V(h1h3) = 480V If division of primary winding is according to drawing then; turns ratio of transformer becomes = [(5/7)*(4)] to (1) = 2.857142857 V(x1x3) = 480V/(turns ratio) = 168 Volts
Anonymous

Fu1 and Fu2 are fuses. The rating of H1/H3 is 480VAC The rating of X1/X3 12 120VAC
Anonymous

[1] 0.5A slow blow fuse. [2] 480V [3] 120V
Anonymous

FU1 = 0.5A Time Delay Fuse # 1 .................................( 250VA/480V = 0.52A) voltage between H1 and H3: 480V AC voltage between X1 and X3: 120V AC