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I Solicitarea electrica a rezistoarelor1.Analiza solicitarii unui rezistor pentru diverse valori alerezistentei

Rn1=Rcrt/10

Rn1=24,5 kohmi

Ua 1( 110.679718= V 1max n

2n+:=

Ua n( ) 110.679718= V

Ua 1( ) 78.262379= V 1 112.5=

grade CUa max( ) 0= V

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Rn2=Rcrt

Rn2=245 kohmi

Ua 1( 350= V 1max n

2n+:=

Ua n( ) 350= V

Ua 1( ) 247.487373= V 1 112.5= grade C

Ua max( ) 0=

V

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Rn3=Rcrt*10

Rn3=2450 kohmi

Ua 1( 350= V 1

max

n

2n+:=

Ua n( ) 350= V

Ua 1( ) 350= V 1 112.5= grade C

Ua max( ) 0= V

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2. Analiza solicitarii unei grupari de rezistoare

2.1

fmax 11:= grade C

Rezistor cu pelicula decarbon TA670

Rezistor de volumCBT50

Rezistor cu pelicula de carbonTA672

Rn1 4700:= Rn2 50000:= Rn3 10000:=

Pn1 0.25:= Pn2 0.5:= Pn3 1:= W

Umax1 25:= V Umax2 350:= V Umax3 50:= V

n1 70:= grade C n2 70:= grade C n3 70:= grade C

max1 155:= grade C max2 125:= grade C max3 155:= grade C

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Ua1(teta) intersectat Ua2(teta) = {124;65.462}

fmax 20:= grade C

Uadm 108.397417= V

fmax 70:= grade C

Uadm 108.397417= V

fmax 10:= grade C

Uadm 87.194846= V

fmax 12:= grade C

Uadm 69.557424= V

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Ua2(teta) intersectat Ua3(teta) = {115;216.93}

Ua1(teta) intersectat Ua3(teta) = {154;11.757}

Uadm = min(Ua1(teta),Ua2(teta),Ua3(teta) = {115;11.757}

I. SOLICITAREA ELECTRIC A REZISTOARELOR- SOLREZ.XMCD

2.2

fmax 11:= grade

C

Rezistor de volumCBT50

Rezistor cu pelicula de carbonTA672

Rezistor cu pelicula decarbon TA670

Rn1 36000:= Rn2 39000:= Rn3 7500:=

Pn1 0.25:= Pn2 0.5:= Pn3 1:= W

Umax1 25:= V Umax2 35 0:= V Umax3 50 0:= V

n1 70:= grade C n2 70:= grade C n3 70:= grade C

max1 155:= grade C max2 125:= grade C max3 15 5:= grade C

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Ua1(teta) intersectat Ua2(teta) = {112;213.38}

Ua2(teta) intersectat Ua3(teta) = {115;188.29}

Ua1(teta) intersectat Ua3(teta) = {85;248.53}

Uadm = min(Ua1(teta),Ua2(teta),Ua3(teta) = {85;188.29}

fmax 20:= grade C

Uadm 250= V

fmax 70:= grade C

Uadm 250= V

fmax 10:= grade C

Uadm220.293921=

V

fmax 12:= grade C

Uadm 133.143805= V

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II Comportarea in frecventa a rezistoarelorRn 35:= ohmi

tol 10:= %

Pn 3:= W

lb 14:= mm

Db 3:= mm

N 28:= Spire

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III Comportarea in frecventa acondensatoarelor

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IV Solicitarea electrica a condensatoarelor infunctie de frecventa

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