Prodcut Range
-kVA , 10 kVA through 315MVA ;
-Temperature rise: 65℃;
-Cooling type: ONAN & ONAF
-Three phase-Hert: 60&50
-Primary voltage: 6 kV through 40.5 kV
-Secondary voltage: 380V & 400V & 415V & 433V or other
Technical Specification
S11/SZ13/SZ15 series three phase two winding off-load tap changer transformer
Rated capacity
Voltage Comb lnabonand Tap range
Vector
NO-load
Load loss
high pressure
high pressure
Low ressure
30
11
±5
0.4
Ty n0
100
630/600
2.3
4
50
130
910/870
2.0
4
63
150
1090/1040
1.9
4
80
180
1310/1250
1.9
4
100
200
1580/1500
1.8
4
125
240
1890/1800
1.7
4
160
280
2310/2200
1.6
4
200
340
2730/2600
1.5
4
250
400
3200/3050
1.4
4
315
480
3830/3650
1.4
4
400
570
4520/4300
1.3
4
500
680
5410/5150
1.2
4
630
810
6200
1.1
4.5
800
960
7500
1.0
4.5
1000
1150
10300
1.0
4.5
1250
1360
12000
0.9
4.5
1600
1640
14500
0.8
4.5
2000
1960
19800
0.8
5
2500
2310
23000
0.7
5
·30kva-1600kva 3-phase duplex winding non-excited tap-changing distribution transformer
(KVA)
Group Symbol
loss(W)
(W)
NO-load
current
(%)
Short circuit
impedance
(%)
(KV)
tap range(%)
(KV)
10.5
10
6.3
6
±2 ×2 .5%
0.69
Dyn11
Rated capacity
Voltage Comb lnabonand Tap range
Vector
NO-load
Load loss
high pressure
high pressure
Low ressure
50
20
±5%
0.4
Dyn11
210
1270/1210
2.00
6.5
100
290
2120/2020
1.80
6.5
125
340
2500/2380
1.70
6.5
160
360
2970/2830
1.60
6.5
200
430
3500/3330
1.50
6.5
250
510
4160/3960
1.40
6.5
315
610
5010/4770
1.40
6.5
400
730
6050/5760
1.30
6.5
500
860
7280/6930
1.20
6.5
630
1040
8280
1.10
6.5
800
1230
9900
1.00
6.5
1000
1440
12150
1.00
6.5
1250
1760
14670
0.90
6.5
1600
2120
17550
0.80
6.5
·50kva-1600kva 3-phase duplex winding non-excited tap-changing distribution transformer
(KVA)
Group Symbol
loss(W)
(W)
NO-load
current
(%)
Short circuit
impedance
(%)
(KV)
tap range(%)
(KV)
22
24
±2 ×2 .5%
Yyn0
Rated capacity
Voltage Comb lnabonand Tap range
Vector
NO-load
Load loss
NO-load
high pressure
high pressure
Low ressure
50
35
±5%
0.4
Dyn11
130
1200/1140
1.30
6.5
100
185
2010/1910
1.10
6.5
125
215
2370/2260
1.10
6.5
160
225
2820/2680
1.00
6.5
200
270
3320/3160
1.00
6.5
250
320
3950/3760
0.95
6.5
315
385
4750/4530
0.95
6.5
500
465
5740/5470
0.85
6.5
545
6910/6580
0.85
6.5
800
665
7860
0.65
6.5
785
9400
0.65
6.5
1000
920
11500
0.65
6.5
1250
1120
13900
0.60
6.5
1600
1350
16600
0.60
6.5
2000
1590
19700
0.55
6.5
2500
1890
23200
0.55
6.5
·630kva-31500kva triple phase duplex winding non-exciting regulating power transformer
(KVA)
Group Symbol
loss(W)
(W)
current
(%)
Short circuit
impedance
(%)
(KV)
tap range(%)
(KV)
38.5
±2 ×2 .5%
Yyn0
Rated capacity
Voltage Comb lnabonand Tap range
Vector
NO-load
Load loss
high pressure
high pressure
Low ressure
630
35
±5%
3. 15
Yd 11
830
7870
1.10
6.5
800
980
9410
1.00
6.5
1000
1150
11540
1.00
6.5
1250
1410
13940
0.90
6.5
1600
2000
1700
16670
0.80
6.5
2500
2180
18380
0.70
6.5
2560
19670
0.60
6.5
3150
35~38.5
±5%
3. 15
3040
23090
0.56
7.0
4000
3620
27360
0.56
7.0
5000
4320
31380
0.48
7.0
6300
5250
35060
0.48
7.0
8000
35~38.5
±2 ×2 .5%
3. 15
Yd 11
7200
38480
0.42
7.5
10000
8700
45320
0.42
7.5
12500
10080
53870
0.40
8.0
16000
12160
65840
0.40
8.0
20000
14400
79520
0.40
8.0
25000
17020
94050
0.32
8.0
31500
20220
112860
0.32
8.0
(KVA)
Group Symbol
loss(W)
(W)
NO-load
current
(%)
Short circuit
impedance
(%)
(KV)
tap range(%)
(KV)
6.3
10.5
6.3
10.5
3.3
6.3
6.6
1 .05
11
