Supply Of S13 Oil Immersed Transformer, Mining Transformer, Fully Sealed Oil Immersed Power Transformer

Application:
Power
Transport Package:
Plywood Box
Origin:
Zhejiang, China

Normal operation condition 

Altitude      < 1000 m Indoor

Max. Ambinet temperature     +40ºC

Max. Daily average temperature       + 30ºC

Max. annual average temperature    +20ºC

Min. temperature  -5ºC

Supply transformers operate under special conditions according to customer requirements.

Features 

1. The core is made of cold rolled grained high-oriented silicon steel sheets  that thickness ≤0.3mm with 45 degree mitred joints. The surface is coated with special resin for moisture and rust proof.

2. Normally the LV winding materials is copper foil cylinder type excepet for small capacity transformers which LV winding materials is copper wire; The HV winding structure is multi-layer cylinder type that has good ampere-turn balance, low leakage flux, high mechanical strength and strong short-circuit withstand capability.

3. By installing the low noise fans that controled by the temperature control device,the operation capacity of the transformer can be increased by 40%.

4. The temperature device which sensers buried in LV winding can control the fans or send alarm & trip signals to protect the transformer.

5. The transformer can be installed in a enclosure which protetion class is IP20 or IP23, the enclosure can prevent small animals coming inside the transformer to avoid short circuit, and also safeguard the personal safety.

6. Sc(b)9      No-load losses Equal To Standard Value In GB/T10228-2008

                    No-load losses Equal To Tagged Value In GB/T10228-2008

    Sc(b)10   No-load losses Decrease By 10% Compared with Standard Value In GB/T10228-2008

                    No-load losses Decrease By 5% Compared with Tagged Value  In GB/T10228-2008

Technical Data

35KV main 50kVA~2500KVA NLTC distribution transformer

Nominal
capacity(KVA)
Voltage unitcombination Low voltage(KV) Vector Group No-load loss(W) Loasloss (W) No-load current(%) Short-circuit impedance(%)
High voltage(KV)

 
High voltage tap
range
 
F class
(120ºC)
H class
(120ºC)
50
35
36
37
38.5



 

±2×2.5% or  ± 5%



 
0.4

 

Yyn0
Dyn11


 
450 1420 1520 2.3 6.0




 
100 630 2090 2230 2.0
160 790 2810 3000 1.5
200 880 3320 3550 1.5
250 990 3800 4060 1.3
315 1170 4510 4820 1.3
400 1370 5410 5790 1.1
500 1620 6650 7110 1.1
630 1860 7690 8230 1.0
800 2160 9120 9760 1.0
1000 2430 10400 11100 0.75
1250 2830 12700 13600 0.75
1600 3240 15400 16500 0.75
2000 3820 18200 19500 0.75
2500 4450 21800 2330 0.75

35KV main 800kVA~25000KVA NLTC Power transformer

Nominal
capacity(KVA)
Voltage unitcombination Low voltage(KV) Vector Group No-load loss(W) Loasloss (W) No-load current(%) Short-circuit impedance(%)
High voltage(KV)

 
High voltage tap
range
 
F class
(120ºC)
H class
(120ºC)
800


35
36
37
38.5


 



±2×2.5% or  ± 5%


 


3.15
6
6.3
10
10.5
11
 

Yyn0
Yd11
Dyn11

 
2250 9400 10000 0.95 6.0
1000 2670 10900 11600 0.95
1250 3130 12900 13800 0.85
1600 3690 15400 16500 0.85
2000 4230 18200 19500 0.75 7.0
2500 4860 21800 23300 0.75
3150 6030 24500 26200 0.70 8.0
4000 7020 29400 31500 0.70
5000 8370 34900 37400 0.60
6300 9900 40800 43700 0.60
8000 Ynd11
Yd11
Dyn11
11300 46000 49300 0.50 9.0
10000 12900 55500 59400 0.50
12500 6
6.3
10
10.5
15700 64600 69100 0.40
16000 19300 76000 81300 0.40
20000 22900 85500 91500 0.35 10.0
25000 27100 101000 108000 0.35

35KV main 2000kVA~25000KVA OLTC Power transformer

Nominal
capacity(KVA)
Voltage unitcombination Low voltage(KV) Vector Group No-load loss(W) Loasloss (W) No-load current(%) Short-circuit impedance(%)
High voltage(KV)

 
High voltage tap
range
 
F class
(120ºC)
H class
(120ºC)
2000


35
36
37
38.5

 



±4×2.5% 
 


3.15
6
6.3
10
10.5
11


Yd11
Dyn11
4500 19000 20300 0.75 7.0
2500 5220 22600 24200 0.75
3150 6300 25400 27200 0.70 8.0
4000 7380 30400 32600 0.70
5000 8730 36100 38600 0.60
6300 10300 41800 44700 0.60
8000 11800 47500 50800 0.50 9.0
10000 13500 57100 61200 0.50
12500 16400 66500 71100 0.40
16000 20200 78200 83700 0.40
20000 23800 88000 94200 0.35 10.0
25000 28100 104000 111000 0.35

Note: The physical dimension in the manual is only provided for design reference, and the fimal dimension shall be based on the actual outline drawing.

Epoxy Resin All Copper Dry Type Transformer

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