Devoir 7 Flashcards

1
Q

Courant dans le neutre triphasé si courant égal

A

I1=In

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2
Q

Courant neutre Phase A et B (10A)

A

Ia angle 0 + Ib angle(-120+90)

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3
Q

Courant neutre phase A et C (10A)

A

In=Ia angle 0 + Ic angle(120-arcosFP)

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4
Q

Courant neutre avec abc (10a)

A

In=Ia angle 0 + Ib angle (-120+90)+10 angle (120-arcosFP)

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5
Q

Courant Alimentation ordinateur

A

Irms × NB de machine

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6
Q

Courant dans le neutre avec 1/3 des locals d’ordinateur

A

60A

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7
Q

Courant dans le neutre avec 2/3 local en fonction

A

60A

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8
Q

Courant neutre avec facteur crete

A

I rms × facteur k

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9
Q

Facteur krete local ordi

A

Irms/Irms×racine de 3

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