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 .