.


:




:

































 

 

 

 





40000/230;

S=40000 , U=230, U=115, U=10,5, U=11%, U=22%, U=9,5%.

:

3.1.3 U=115

 
 

(.3.2.) ..

 

S=1000 ; U=115 .

= 0,6 ..,

12, 14 . , , 220=40 .

 

 

1 2

ABB LTB 145D1/B:

U=110= U=110;

I=3150 >I=57,44;

I=40>Ik1=8,37;

I= 40>iy=21,23.

14

ABB SGF123n+2E:

U=110= U=110;

I=1600 >I=57,74;

I=100>Ik1=8,37;

I=40>iy=21,23.

3 4

ABB LTB 145D1/B:

U=110= U=110;

I=3150 >I=57,44;

I=40>Ik2=5,23;

I= 40>iy=13,27.

ABB PEXLIMR.

 

I

12:

12=2×30000=60000 ..

34:

34=2×30000=60000 ..

14:

14=4×2500=10000 ..

14:

12=2×=4×2000=8000 ..

:

=2×250000=500000 ..

:

= 14+ 14+14+

= 60000*2+10000+8000+500000=638000 ..

 

:

=20000 ../.

=1×L×=16×20000=320000 ..

 

:

Σ1= +=638000+320000=958000y.e.

Σ1= 958000×151=144,6 ..

 

:

=0.004×=0.004×320000=1280 ..

:

=0.028×=0.028×320000=8960 ..

:

=0.01×=0.01×638000=6380 ..

.

:

=0.063×=0.063×638000=40194 ..

:

.=o×(W+ W)=0.09×(323293,2+359452,76)=61450 y.e.

o=0.09 y.e./×

 

:

Σ1=++,

Σ1=(8960+40194)+(61450+1280)+6380=118264y.e.

Σ1=118264×151=17,8 ..

:

I=0.12×Σ1+ Σ1=0.12×144,6+17,8=35,15 ..

 

II

3.3. .

 

II .

:

 

 

10000 .

:

:

Ė10000/35;

S=10000 , U=38,5, U=10,5, ΔP=8, ΔP=46,5,

U=7,5%, I=0,8%.

:

:

:

 

.

 

ΔW=2(ΔP×T+ΔP× τ ×K2)

ΔW=2(8×4000+46,5×2405,29×0,57 2)= 136677

 

3.2.1 35 .

, :

, :

:

I=2×I=2×89,57=179,14 .

:

.

j=1,1/2 =4000 .

95 I=330.

.

:

I=330>I=89,57

:

I =1,3xI=1,3x330=429A>I=179,14A.

:

r0=0,33 / 95 2, l=5,5 .





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