1. Dane znamionowe silnika i prądnicy.
Silnik : In = 3,8 [A] nn = 1420 [obr/min] Un = 380 [V] Pn = 1,7 [kW] cosϕ = 0,83 |
Prądnica : In = 13,2 [A] Un = 110 [V] Pn = 1,1 [kW] nn = 1400 [obr/min] |
2. Prąd rozruchu i biegu jałowego.
Schemat układu :
V : EM; kl 0,5; zakres 600 [V] Ar : EM; zakres 20 [A] Ao : EM; kl. 0,5 zakres 10 [A]
|
Połączen.: |
trójkąt |
|
Połączen.: |
gwiazda |
|
L.P |
Ir |
In |
Io |
Ir |
Iu |
Io |
|
A |
A |
A |
A |
A |
A |
1 |
11.5 |
2.2 |
2.0 |
5.25 |
3.8 |
0.52 |
2 |
11.5 |
2.2 |
1.95 |
5.25 |
3.8 |
0.525 |
3 |
11.5 |
2.2 |
1.95 |
5.25 |
3.8 |
0.5 |
Średnia |
11.5 |
2.2 |
1.96 |
5.25 |
3.8 |
0.515 |
2. Przełącznik zero -gwiazda - trójkąt.
Schemat przełącznika :
L.P |
Ir (g) |
Ir/Iu |
Ir (t) |
Ir/Iu |
Io |
Io/Iu |
|
A |
% |
A |
% |
A |
% |
1 |
9 |
237 |
6.8 |
178.9 |
3 |
78.9 |
2 |
8.8 |
231.6 |
5.1 |
134.2 |
3 |
78.9 |
3 |
9.1 |
239.5 |
5 |
131.6 |
3 |
78.9 |
3. Przełącznik zmiany kierunku wirowania.
L.P |
Lewy : trójkąt |
Prawy : trójkąt |
Lewy : Gwiazda |
Prawy : Gwiazda` |
|
I [A] |
I [A] |
I [A] |
I [A] |
1 |
17 |
25 |
6 |
8 |
2 |
17 |
27 |
7 |
8.5 |
3 |
17 |
27 |
6.5 |
8.5 |
3. Charakterystyki obciążenia.
Schemat układu :
|
U |
I1 |
I2 |
I3 |
I |
P1 |
cosϕ |
Uh |
Ih |
ω |
M |
P2 |
P2° |
η |
L.P. |
V |
A |
A |
A |
A |
W |
- |
V |
A |
ob/se |
Nm |
W |
- |
- |
1 |
380 |
2 |
2 |
2 |
2 |
250 |
0.2 |
109 |
0 |
160 |
0.25 |
40 |
0.04 |
0.16 |
2 |
380 |
2.1 |
2.1 |
2.1 |
2.1 |
450 |
0.32 |
104 |
2 |
159 |
1.59 |
253 |
0.23 |
0.56 |
3 |
380 |
2.45 |
2.2 |
2.25 |
2.3 |
800 |
0.5 |
100 |
5 |
158 |
3.48 |
550 |
0.5 |
0.68 |
4 |
380 |
2.5 |
2.3 |
2.4 |
2.4 |
950 |
0.6 |
96 |
7 |
157 |
4.63 |
727 |
0.66 |
0.76 |
5 |
380 |
2.9 |
2.8 |
2.8 |
2.8 |
1300 |
0.7 |
92 |
10 |
156 |
6.28 |
980 |
0.89 |
0.75 |
6 |
380 |
3.1 |
2.98 |
3.1 |
3.06 |
1500 |
0.74 |
90 |
12 |
155 |
7.38 |
1145 |
1.04 |
0.76 |
7 |
380 |
3.6 |
3.5 |
3.5 |
3.53 |
1800 |
0.8 |
84 |
15 |
154 |
8.6 |
1330 |
0.2 |
0.74 |
8 |
380 |
3.8 |
3.75 |
3.75 |
3.77 |
2000 |
0.8 |
82 |
16 |
153 |
9.06 |
1387 |
0.26 |
0.69 |
9 |
380 |
3.9 |
3.85 |
3.8 |
3.85 |
2150 |
0.81 |
80 |
17 |
152 |
9.47 |
1440 |
1.3 |
0.62 |
10 |
380 |
4 |
3.95 |
3.9 |
3.95 |
2300 |
0.82 |
78 |
18 |
151 |
9.86 |
1489 |
1.35 |
0.65 |
11 |
380 |
4.2 |
4.1 |
4.1 |
4.12 |
2300 |
0.82 |
76 |
19 |
150 |
10.2 |
1534 |
1.4 |
0.67 |
Przełączenie w gwiazdę :
|
U |
I1 |
I2 |
I3 |
I |
P1 |
cosϕ |
Uh |
Ih |
ω |
M |
P2 |
P2° |
η |
L.P. |
V |
A |
A |
A |
A |
kW |
- |
V |
A |
ob/se |
Nm |
W |
- |
- |
1 |
380 |
0 |
0 |
0 |
0 |
0.19 |
0.57 |
0.8 |
0 |
155 |
0.3 |
45 |
0.04 |
0.23 |
2 |
380 |
0.5 |
0.4 |
0.3 |
0.4 |
0.4 |
0.74 |
100 |
2 |
155 |
1.6 |
255 |
0.23 |
0.63 |
3 |
380 |
1.2 |
1.1 |
1.1 |
1.12 |
0.75 |
0.78 |
96 |
5 |
150 |
3.6 |
545 |
0.49 |
0.73 |
4 |
380 |
1.7 |
1.6 |
1.62 |
1.62 |
0.98 |
0.8 |
90 |
7 |
149 |
4.7 |
705 |
0.64 |
0.72 |
5 |
380 |
1.9 |
1.8 |
1.75 |
1.85 |
1.2 |
0.82 |
85 |
8 |
145 |
5.3 |
765 |
0.69 |
0.63 |
6 |
380 |
2.3 |
2.2 |
2.2 |
2.24 |
1.3 |
0.83 |
82 |
9 |
142 |
5.9 |
833 |
0.75 |
0.62 |
7 |
380 |
2.5 |
2.5 |
2.45 |
2.48 |
1.4 |
0.84 |
81 |
10 |
140 |
6.5 |
910 |
0.83 |
0.65 |
8 |
380 |
3.4 |
3.3 |
3.3 |
3.32 |
1.5 |
0.84 |
72 |
11 |
129 |
7.3 |
940 |
0.85 |
0.62 |
9 |
380 |
3.9 |
3.9 |
3.9 |
3.9 |
1.8 |
0.85 |
68 |
12 |
120 |
8.0 |
965 |
0.87 |
0.53 |
Przerwa w fazie L2 :
|
U |
I1 |
I2 |
I3 |
I |
P1 |
cosϕ |
Uh |
Ih |
ω |
M |
P2 |
P2° |
η |
L.P. |
V |
A |
A |
A |
A |
kW |
- |
V |
A |
ob/se |
Nm |
W |
- |
- |
1 |
380 |
2.9 |
0 |
2.8 |
1.9 |
300 |
0.7 |
106 |
0 |
159 |
0.23 |
36 |
0.03 |
0.12 |
2 |
380 |
3 |
0 |
3 |
2 |
400 |
0.83 |
102 |
2 |
158 |
1.54 |
244 |
0.2 |
0.61 |
3 |
380 |
3.2 |
0 |
3.15 |
2.12 |
650 |
0.86 |
101 |
3 |
157 |
2.2 |
347 |
0.3 |
0.53 |
4 |
380 |
3.2 |
0 |
3.2 |
2.13 |
700 |
0.9 |
99 |
4 |
156 |
2.85 |
444 |
0.4 |
0.63 |
5 |
380 |
3.5 |
0 |
3.5 |
2.33 |
850 |
0.95 |
98 |
5 |
155 |
3.5 |
542 |
0.49 |
0.63 |
6 |
380 |
3.8 |
0 |
3.75 |
2.52 |
1000 |
0.96 |
96 |
6 |
154 |
4.1 |
632 |
0.57 |
0.63 |
7 |
380 |
4.1 |
0 |
3.95 |
2.68 |
1200 |
0.97 |
94 |
7 |
153 |
4.7 |
716 |
0.65 |
0.6 |
8 |
380 |
4.5 |
0 |
4.4 |
3.3 |
1300 |
0.98 |
93 |
8 |
152 |
5.3 |
804 |
0.73 |
0.62 |