Tnmd Bai8 to Dau Day Mba 3p
description
Transcript of Tnmd Bai8 to Dau Day Mba 3p
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 1
Bi 8:
T NI DY MY BIN P BA PHA
I. Mc tiu
Gip sinh vin nm c cc vn c bn v cch u ni cun s cp v th cp ca
My bin p 3 pha, ng thi gip sinh vin o c v kim chng lch pha ca cc kiu t
u dy MBA.
II. Thit b th nghim
- Ngun AC 3 pha 127/220V My bin p ba pha
- Probe p cch ly Dao ng k 2 knh.
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 2
- Volt k AC Dy ni
III. Tin trnh th nghim
1. T ni dy Y Y :
a. S nguyn l
Hnh 8.1 - Th nghim t ni dy Y Y
1U2
1U3
1U1
1V2
1V3
1V1
1W2
1W3
1W1
3U1
3U2
2U1
2U2
3V1
3V2
2V1
2V2
3W1
3W2
2W1
2W2
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 3
b. Thc hin:
- u mch theo s nguyn l, nh GVHD ti kim tra trc khi cp ngun.
- Tin hnh o in p trn cc u dy ni ca MBA 3 pha pha s cp v th cp. Ghi
nhn bng thng s theo yu cu.
Primary Winding Secondary Winding
Test Terminals Voltage Test Terminals Voltage
1U3 1U2 2U1 3U2
1V3 1V2 2V1 3V2
1W3 1W2 2W1 3W2
1U3 1V3 2U1 2V1
1V3 1W3 2V1 2W1
1W3 1U3 2W1 2U1
Bng 8.1 Bng s liu o th nghim t ni dy Y Y
- Dng probe p cch ly, o ng thi in p gia 2 u cc cun dy bn s cp v th
cp, v th in p, ch r gc lch pha ca 2 tn hiu trn th, ch r tn hiu no l
tn hiu trn cun primary v cun secondary.
- Ch : o in p 2 u cun p th u que ca probe p l u u, cn que en ca
probe p l u cui ca in p cn o
o Cun 1U3 1V3 v 2U1 2V1 lch pha:
o Lm tng t cho cc cun sau:
Cun 1U3 1V3 v 2V1 2W1
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 4
Cun 1U3 1V3 v 2W1 2U1
c. Nhn xt v gii thch
- V s cc cun dy, ghi r cc u dy v ngun cp cho pha s cp v th cp.
- V th vector tm t u dy ca MBA? Sinh vin nu r l t u dy no? Cho nhn
xt.
2. T ni dy Y - :
a. S nguyn l
Hnh 8.2 Th nghim t ni dy Y -
b. Thc hin
- u mch theo s nguyn l, nh GVHD ti kim tra trc khi cp ngun.
- Tin hnh o in p trn cc u dy ni ca MBA 3 pha pha s cp v th cp. Ghi
nhn bng thng s theo yu cu.
Primary Winding Secondary Winding
Test Terminals Voltage Test Terminals Voltage
1U3 1U2 2U1 3U2
1V3 1V2 2V1 3V2
1U2
1U3
1U1
1V2
1V3
1V1
1W2
1W3
1W1
3U1
3U2
2U1
2U2
3V1
3V2
2V1
2V2
3W1
3W2
2W1
2W2
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 5
1W3 1W2 2W1 3W2
1U3 1V3 2U1 2V1
1V3 1W3 2V1 2W1
1W3 1U3 2W1 2U1
Bng 8.2 Bng s liu o th nghim t ni dy Y -
- Dng probe p cch ly, o ng thi in p gia 2 u cc cun dy bn s cp v th
cp, v th in p, ch r gc lch pha ca 2 tn hiu trn th.
o Cun 1U3 1V3 v 2U1 2V1 lch pha:
o Lm tng t cho cc cun sau:
Cun 1U3 1V3 v 2V1 2W1
Cun 1U3 1V3 v 2W1 2U1
b. Nhn xt v gii thch
- V s cc cun dy, ghi r cc u dy v ngun cp cho pha s cp v th cp.
- V th vector tm t u dy ca MBA? Sinh vin nu r l t u dy no? Cho nhn
xt.
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 6
3. T u dy - Y:
a. S nguyn l
Hnh 8.3 Th nghim t ni dy - Y
b. Thc hin
- u mch theo s nguyn l, nh GVHD ti kim tra trc khi cp ngun.
- Tin hnh o in p trn cc u dy ni ca MBA 3 pha pha s cp v th cp. Ghi
nhn bng thng s theo yu cu.
Primary Winding Secondary Winding
Test Terminals Voltage Test Terminals Voltage
1U1 1U2 2U1 3U2
1V1 1V2 2V1 3V2
1W1 1W2 2W1 3W2
1U1 1V1 2U1 2V1
1V1 1W1 2V1 2W1
1W1 1U1 2W1 2U1
Bng 8.3 Bng s liu o th nghim t ni dy - Y
3U1
3U2
2U1
2U2
3V1
3V2
2V1
2V2
3W1
3W2
2W1
2W2
1U2
1U3
1U1
1V2
1V3
1V1
1W2
1W3
1W1
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 7
- Dng probe p cch ly, o ng thi in p gia 2 u cc cun dy bn s cp v th
cp, v th in p, ch r gc lch pha ca 2 tn hiu trn th.
o Cun 1U1 1V1 v 2U1 2V1 lch pha:
o Lm tng t cho cc cun sau:
Cun 1U1 1V1 v 2V1 2W1
Cun 1U1 1V1 v 2W1 2U1
c. Nhn xt v gii thch
- V s cc cun dy, ghi r cc u dy v ngun cp cho pha s cp v th cp.
- V th vector tm t u dy ca MBA? Sinh vin nu r l t u dy no? Cho nhn
xt.
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 8
4. T u dy -
a. S nguyn l
Hnh 8.4 Th nghim t ni dy -
b. Thc hin
- u mch theo s nguyn l, nh GVHD ti kim tra trc khi cp ngun.
- Tin hnh o in p trn cc u dy ni ca MBA 3 pha pha s cp v th cp. Ghi
nhn bng thng s theo yu cu.
Primary Winding Secondary Winding
Test Terminals Voltage Test Terminals Voltage
1U1 1U2 2U1 3U2
1V1 1V2 2V1 3V2
1W1 1W2 2W1 3W2
1U1 1V1 2U1 2V1
1V1 1W1 2V1 2W1
1W1 1U1 2W1 2U1
Bng 8.4 Bng s liu o th nghim t ni dy -
3U1
3U2
2U1
2U2
3V1
3V2
2V1
2V2
3W1
3W2
2W1
2W2
1U2
1U3
1U1
1V2
1V3
1V1
1W2
1W3
1W1
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 9
- Dng probe p cch ly, o ng thi in p gia 2 u cc cun dy bn s cp v th
cp, v th in p, ch r gc lch pha ca 2 tn hiu trn th.
o Cun 1U1 1V1 v 2U1 2V1 lch pha:
Lm tng t cho cc cun sau:
Cun 1U1 1V1 v 2V1 2W1
Cun 1U1 1V1 v 2W1 2U1
c. Nhn xt v gii thch
- V s cc cun dy, ghi r cc u dy v ngun cp cho pha s cp v th cp.
- V th vector tm t u dy ca MBA? Sinh vin nu r l t u dy no? Cho nhn
xt.
5. T u dy Y - zigzag
a. S nguyn l
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 10
Hnh 8.5 Th nghim t ni dy Y - zigzag
b. Thc hin
- u mch theo s nguyn l, nh GVHD ti kim tra trc khi cp ngun.
- Tin hnh o in p trn cc u dy ni ca MBA 3 pha pha s cp v th cp. Ghi
nhn bng thng s theo yu cu.
Primary Winding Secondary Winding
Test Terminals Voltage Test Terminals Voltage
1U1 1U2 3U1 2U2
1V3 1V2 3V1 2V2
1W3 1W2 3W1 2W2
1U3 1V3 3U2 3V2
1V3 1W3 3V2 3W2
1W3 1U3 3W2 3U2
- 2U1 2V1
- 2V1 2W1
- 2W1 2U1
Bng 8.5 Bng s liu o th nghim t ni dy Y - zigzag
1U2
1U3
1U1
1V2
1V3
1V1
1W2
1W3
1W1
3U1
3U2
2U1
2U2
3V1
3V2
2V1
2V2
3W1
3W2
2W1
2W2
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 11
6. T u dy - zigzag
a. S nguyn l
Hnh 8.6 Th nghim t ni dy - zigzag
b. Thc hin
- u mch theo s nguyn l, nh GVHD ti kim tra trc khi cp ngun.
- Tin hnh o in p trn cc u dy ni ca MBA 3 pha pha s cp v th cp. Ghi
nhn bng thng s theo yu cu.
Primary Winding Secondary Winding
Test Terminals Voltage Test Terminals Voltage
1U1 1U2 3U1 2U2
1V3 1V2 3V1 2V2
1W3 1W2 3W1 2W2
1U3 1V3 3U2 3V2
1V3 1W3 3V2 3W2
1W3 1U3 3W2 3U2
- 2U1 2V1
1U2
1U3
1U1
1V2
1V3
1V1
1W2
1W3
1W1
3U1
3U2
2U1
2U2
3V1
3V2
2V1
2V2
3W1
3W2
2W1
2W2
-
T ni dy My bin p 3 pha
Ti liu hng dn Th nghim my in Page 12
- 2V1 2W1
- 2W1 2U1
Bng 8.6 Bng s liu o th nghim t ni dy - zigzag
- Nu ng dng ca MBA u dy kiu zigzag?
IV. Yu cu
- Sinh vin phi hon thnh tt c cc yu cu trong bui th nghim. GVHD kim tra tng
bui th nghim ca SV.
- Np bo co ng hn
V. Np bo co
Bo co ghi r H tn, MSSV, Nhm, T, ngy thc hin bi TN.
Cc kt qu o v kt qu th nghim phi c trnh by r rng, ngn gn v y cc
yu cu theo bi hng dn bo co th nghim.
GV c quyn cho im 0 nhng bo co nh sau:
Nhng bi sao chp ln nhau di mi hnh thc.
S liu bo co khng trng khp vi s liu thc hin ti PTN.