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Home > Products > Power Transformer > 33kv Kema Tested Distribution Transformer

33kv Kema Tested Distribution Transformer

Basic Info

Model No.:  S-50/33

Product Description



Model NO.: S-50/33


Phase: Three


Cooling Method: Oil-immersed Type Transformer


Certification: ISO9001-2000


Frequency Characteristics: Power Frequency


Brand: Tianan


Environment: Outdoor


Trademark: TIANAN


Origin: Ningbo, Zhejiang, China




Application: Power


Coil: Core-type Transformer


Winding Type: Two-winding Transformer


Usage: Power Transformer


Shape of Coil: Ring


Altitude: up to 1, 000m Above Sea Level


Special Conditions: Depends on The Customer


Specification: IEC


HS Code: 850423110


Our company is well recognized manufacturer, exporter and trader of premium quality assortment of Power Transformer in Ningbo, Zhejiang, China.



Rated voltage: 33kV

Rated capacity: 50kVA

Frequency: 50Hz, 60Hz

Tapping range: +-2*2.5%

Vector group: Ynd11

Cooling: ONAN, ONAF

Tap changer: OLTC, NLTC

On-load loss: low

No-load loss: low



12~36kV Three-phase oil immersed transformer

NINGBO TIANAN (GROUP) CO., LTD.



1. General

(1) Application:

>> 12, 24,36KV class transformers are widely used in power transmission and distribution stations,

industry plants, Generation Setup Unit (GSU).

>> They have the characteristic of high efficiency, low loss and maintenance free.

(2) Type and Rating

**Capacity range :50-50000KVA.

**Secondary voltage: 415V ,400V etc.

**Frequency :50Hz ,60Hz.

**Type: Single phase ,three phase.

**No-load tap changer and on-load tap changer.

**ONAN and ONAF.

**Set-up and set-down type.

(3) Standard: IEC60076-1, IEC60076-2, IEC60076-5, IEC60317, ANSI, IEEE, AS, etc.



2. Conditions of service

(1) Altitude: Up to 1,000m above sea level.

(2) Ambient temperature:

**Max: +40ºC.

**Average (daily, Max.): +30ºC.

**Average (yearly, Max.): +20ºC.

**Min: -45ºC.

(3) Environment: Outdoor.

(4) Special conditions:

It may be consulted between manufacturer and customer.



3. Structural Features

(1) Iron core

The iron core is made of cold rolled grain oriented silicon steel sheet. Laminations are cut to length

onGEORG cut to- length line with steplap cut and automatic stacking functions.

The multistep lamination structure can reduce the loss and noise .

The steel sheet in the core limbs and yokes are clamped together by glass-epoxy bonds.

(2) Winding

High quality enameled or paper covered copper is used as conductor, the winding was made as

drum type, spiral type, improved spiral type, continuous type and interleaved type to ensure the insulation strength. Standard tapings are ±2*2.5%of the HV winding.

(3) Tank

The tank, cover and the conservator are made by corrugated steel plate .For the small transformers,

we use a deep tank and a cover, but for larger transformers, we manufacture bell type .The corrugated construction are a effective way for oil cooling.

(4) Insulation oil

The tanks are filled with high quality grade mineral oil as per IEC296 and it is PCB and PCT free.

The oil is used to help cooling the transformer. It is also used provide part of the electrical insulation between internal live parts.

(5) Tap changer

Tap changers are used to regulate the output voltage of the transformers to required levels .We

achieve this by changing the ratios of the transformer on the system by altering the number of turns in the HV winding .Tap changers can be on load (OLTC) or off load(OCTC).

(6) Assembly

The core and the windings assembled together from the active part of the transformer. The active

body assembled with multi-windings and identical pressure dry method adopted, effectively improved

the electrical strength and the ability to short circuit withstanding.



4. Test equipment

Strict test should be done according to IEC standard, by high technical Equipments to ensure the

quality and the reliable of every transformer.



5. Technical Data of Typical Products



>S9, S10 series 10KV three phase off -load tap changer distribution transformer



Type
Rating
KVA
On-load
loss
(w)
Load
loss
(w)
I
(%)
UK
(%)
Dimension (mm) Weight
(kg)
a b c
S9-M-50/11 50 170 870 2.0 4.0 1215 660 1170 430
S9-M-250/11 250 560 3050 1.2 4.0 1190 815 1370 1115
S9-M-400/11 400 800 4300 1.0 4.0 1515 770 1580 1380
S9-M-500/11 500 960 5050 1.0 4.0 1635 840 1610 1600
S9-M-1000/11 1000 1700 10300 0.7 4.5 1960 1095 1960 2860
S9-M-2500/11 2500 3300 23000 0.55 5.5 2230 2305 2445 5660
S10-M-30/10 30 110 600 1.8 4.0 870 645 1025 310
S10-M-50/10 50 140 870 1.7 4.0 1090 650 1080 395
S10-M-80/10 80 200 1250 1.6 4.0 1140 675 1110 490
S10-M-100/10 100 240 1500 1.5 4.0 1185 690 1130 560
S10-M-125/10 125 280 1800 1.4 4.0 1205 710 1180 670
S10-M-160/10 160 340 2200 1.3 4.0 1255 720 1200 780
S10-M-200/10 200 400 2600 1.2 4.0 1295 740 1215 875
S10-M-250/10 250 470 3050 1.1 4.0 1340 755 1260 1115
S10-M-315/10 315 560 3650 1.0 4.0 1400 770 1320 1280
S10-M-400/10 400 680 4300 0.9 4.0 1500 860 1400 1490
S10-M-500/10 500 810 5150 0.9 4.0 1575 895 1430 1740
S10-M-630/10 630 1020 6200 0.8 4.5 1660 930 1545 2110
S10-M-800/10 800 1190 7500 0.7 4.5 1830 1070 1590 2625
S10-M-1000/10 1000 1450 10300 0.6 4.5 1935 1175 1685 2860
S10-M-1250/10 1250 1650 12000 0.6 4.5 1960 1170 1730 3330
S10-M-1600/10 1600 2040 14500 0.5 4.5 2325 1220 2120 3765
S10-M-2000/10 2000 2140 17820 0.5 4.5 2395 1260 2225 4530






>>S11 series 20KV three phase off -load tap changer distribution transformer




TYPE
Voltage ratio(kV) Connection No
load
Loss
(W)
Load
loss
(W)
Io
(%)
UK
(%)
Dimensions (mm) Weight (Kg)
a b c d e f
S11-M-30/20




20(10)
±5%/0.4




Yyn0


Dyn11
100 690/
660
2.1





5.5
1100 700 1240 14 400 400 640
S11-M-50/20 130 1010/
960
2.0 1130 710 1260 14 400 450 710
S11-M-63/20 150 1200/1150 1.9 1160 740 1270 14 400 450 780
S11-M-80/20 180 1440/1370 1.8 1200 770 1280 14 400 450 860
S11-M-100/20 200 1730/
1650
1.6 1220 800 1300 14 400 450 900
S11-M-125/20 240 2080/
1980
1.5 1270 840 1330 19 550 450 970
S11-M-160/20 290 2540/
2420
1.4 1320 870 1350 19 550 550 1100
S11-M-200/20 340 3000/
2860
1.3 1360 900 1380 19 550 550 1240
S11-M-250/20 400 3520/
3350
1.2 1430 910 1430 19 550 650 1420
S11-M-315/20 480 4210/
4010
1.1 1460 920 1450 19 550 650 1570
S11-M-400/20 570 4970/
4730
1.0 1490 940 1470 19 660 750 1740
S11-M-500/20 680 5940/
5660
1.0 1570 970 1540 19 660 750 1950
S11-M-630/20 810 6820 0.9

6.0
1650 1000 1580 19 660 850 2290
S11-M-800/20 980 8250 0.8 1750 1070 1650 19 820 850 2690
S11-M-1000/20 1150 11330 0.7 1830 1170 1690 19 820 850 2880
S11-M-1250/20 1380 13200 0.7 1900 1200 1790 19 820 850 3400
S11-M-1600/20 1660 15950 0.6 1950 1250 1850 19 820 900 4100






>>>>S9 series 35kV three phase Off-load tap changer power transformer



Capacity
KVA
Voltage and tap range Connection No-load loss
(kW)
Load loss
(KW)
NO-load current
(%)
Impedance
(%)
Dimensions (mm)
LxWxH
HV (kV) MV (kV) LV (kV)
50 35 ± 5 0.4 Dyn11
Yyn0
0.21 1.27/1.21 2.00 6.5 1100x845x1715
100 0.29 2.12/2.02 1.80 1190x915x1780
125 0.34 2.50/2.38 1.70 1220x1040x1780
160 0.36 2.97/2.83 1.60 1240x1070x1810
200 0.43 3.50/3.33 1.50 1380x780x1875
250 0.51 4.16/3.96 1.40 1540x880x1820
315 0.61 5.01/4.77 1.40 1440x800x1975
400 0.73 6.05/5.76 1.30 1660x825x1995
500 0.86 7.28/6.93 1.20 1710x865x2030
630 1.04 8.28 1.10 1630x1235x2070
800 1.23 9.90 1.00 1655x1415x2120
1000 1.44 12.15 1.00 1860x1435x2220
1250 1.76 14.67 0.90 1890x1640x2260
1600 2.12 17.55 0.80 2050x1720x2390
630 3.15
6.3
10.5
Yd11 1.04 8.28 1.10 1630x1235x2070
800 1.23 9.90 1.00 1655x1415x2120
1000 1.44 12.15 1.00 1860x1435x2220
1250 1.76 14.67 0.90 1890x1640x2260
1600 2.12 17.55 0.80 2050x1720x2390
2000 2.72 19.35 0.70 2400x1900x2410
2500 3.20 20.70 0.60 2500x1930x2700
3150 35~
38.5
± 5 3.15
6.3
10.5
3.80 24.30 0.56 7.0 2600x2100x2800
4000 4.52 28.80 0.56 2830 x2350x2855
5000 5.40 33.03 0.48 2930x2480x2930
6300 6.56 36.90 0.48 7.5 3150x2330x3220
8000 ± 2 x 2.5 3.15
3.3
6.3
6.6
10.5
11
YNd11 9.00 40.50 0.42 3295x3110x3345
10000 10.88 47.70 0.42 3450x3210x3440
12500 12.60 56.70 0.40 8.0 3620x3255x3500
16000 15.20 69.30 0.40 3980x3420x3650
20000 18.00 83.70 0.40 4030x3470x3690
25000 21.28 99.00 0.32 5050x4640x3930
31500 25.28 118.8 0.32 5120x4800x4030






>>>>S9 series 35kV three phase on-load tap changer power transformer



Type
Voltage compose and Tapping range (kV)

Connection
No-load
Loss
(kW)
Load
loss
(kW)
No-
load current (I%)
Impedance voltage (%) Transport weight (t) Gross weight (t) Dimensions
L×W×H (mm)
HV LV
SZ9-2000/35 35
±3×2.5%
6.3
10.5
Yd11 2.88 18.7 1.00 6.5 4.93 5.97 3010×2070×2540
SZ9-2500/35 3.40 21.7 1.00 6.5 5.68 6.95 3040×2270×2610
SZ9-3150/35 4.04 26.0 0.90 7.0 6.08 7.90 3160×2300×2640
SZ9-4000/35 35
38.5
±3×2.5%
6.3
10.5
4.84 30.7 0.90 7.0 7.10 9.11 3300×2330×2890
SZ9-5000/35 5.80 36.0 0.85 7.0 8.47 10.86 3350×2520×3000
SZ9-6300/35 7.04 38.7 0.85 7.5 9.87 12.30 3680×2650×3050
SZ9-8000/35 9.84 42.8 0.75 7.5 12.55 15.30 4190×2930×3280
SZ9-10000/35 35
38.5
±3×2.5%
6.3
6.6
10.5
11


Ynd11
11.6 50.6 0.75 7.5 14.70 17.86 4620×3160×3400
SZ9-12500/35 13.7 60.0 0.70 8.0 17.35 20.05 4740×3200×3540
SZ9-16000/35 16.0 73.0 0.70 8.0 19.45 23.74 4810×3360×3790
SZ9-20000/35 18.9 88.3 0.70 8.0 27.50 34.95 4880×3540×4150
SZ9-25000/35 22.4 104.4 0.65 8.0 32.51 40.22 4920×3920×4200
SZ9-31500/35 26.6 125.3 0.65 8.0 37.73 45.53 5010×4270×4460



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