Home > Products> SZ9 Series Transformer Fitted With On-load  
Scope of Application:
The transformer is fitted with O.L.T.C(on-load tap-changer). And it especially is the same with place which needs steady voltage and variational electrical power system.
Features of production:
Superior performance gets to the international level. It can save energy perfectly. Comparing to GB6451-1999, its no-load loss drops by 11.8% in average, the load loss drops by 22.4% in average. The production'score of voltage regulater is (±4×2.5%), and has automatica tap-changerlarger than old. It has strongpoint of lower core, temperature and stronger over loading. Firm configuration and good at anti-short circuit performance. The corrugated iron is made of imported steel plate and made with imported equipment, good-lookingworkable, durable. Tank and clamps go through acid picking and phosphorization, painting for times after rust frss processing, to make the paint film keep on.
  SZ9-200~1600/10 power-transformer with O.L.T.C.
Rated Capacity(kVA)
200
250
315
400
500
630
800
1000
1250
1600
connection team mark
Yyn0 or Dyn11
no-load loss (w)
0.48
0.56
0.67
0.80
0.96
1.30
1.50
1.83
2.08
2.70
load loss (w)
2.60
3.05
3.65
4.30
5.15
6.50
8.30
10.85
12.6
15.2
no-load current (%)
1.3
1.3
1.1
1.0
1.0
0.9
0.8
0.7
0.6
0.6
impedance voltage (%)
4
4
4
4
4
4.5
4.5
4.5
4.5
4.5
weight of core and winding assembly (kg)
635
720
730
1050
1175
1350
1730
2020
2350
2300
Oil-weight(kg)
250
260
265
310
395
440
505
650
720
970
weight(kg)
1095
1150
1220
1570
1870
2140
2715
3400
3810
4690
figuration size (mm)
L
1630
1680
1750
1800
1820
1900
2250
2360
2480
2480
W
640
750
830
920
1020
1020
1020
1120
1180
1250
H
1370
1420
1520
1570
1620
1700
2040
2150
2210
2300
setting size
(mm)
E1
550
550
550
550
660
660
820
820
820
820
E2
550
550
550
550
660
660
820
820
820
820
D
19
19
19
19
19
19
19
19
19
19
bushing size
(mm)
H1
1155
1175
1265
1305
1355
1395
1550
1655
1725
1875
h
905
925
1015
1055
1105
1145
1300
1405
1475
1625
h1
250
250
250
250
250
250
250
250
250
250
h2
160
160
160
160
260
270
270
330
330
330
h3
160
160
160
160
160
160
160
270
270
270
L1
250
250
300
300
300
300
300
300
300
400
L2
120
120
120
120
160
160
160
200
200
220
L3
120
120
120
120
160
160
160
200
200
200
B1
135
140
140
140
160
165
175
190
200
215
B2
130
140
140
140
145
150
150
150
170
175
low-voltage phase terminal
(mm)
picture
(二)
(二)
(三)
(三)
(四)
(四)
(四)
(四)
(四)
(四)
b
80
80
80
100
100
100
b1
45
45
45
45
45
45
d
14.5
14.5
14.5
14.5
14.5
14.5
δ
15
15
15
15
15
15
low-voltage zero-line terminal
(mm)
picture
(二)
(二)
(三)
(三)
(三)
(三)
(三)
(四)
(四)
(四)
b
     
80
80
80
b1
     
45
45
45
d
     
14.5
14.5
14.5
δ
     
15
15
15
 skeleton map of on-load tap-changer
点击可放大图片