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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: CHNA
  • Model Number: S9 -10~20MVA 20-38kv
  • Usage: Power
  • Phase: Three
  • Coil Structure: Toroidal
  • Coil Number: Three phase duplex winding
  • High Voltage: 6\6.3\6.6\10\10.5\11\15KV
  • Low Voltage:: 0.4\0.69kV
  • Standards:: GB1094 IEC60076

Packaging & Delivery

Packaging Details Wooden Case or according to Customer's demand
Delivery Time 10 days or depend on the quantity you order

We're MANUFACTURER and specialize in electrical field for several years,also export products with good quality and right price in China. Our transformers sell well all over the world, and are exported to Ethiopia, Malaysia, Thailand, Kenya, Mozambique, Congo, Rwanda, Pakistan, South Africa and so on. We have won a good reputation among customers at home and abroad. We will do our best to provide more high-quality products and services for you in the future! If the following parameter specifications do not meet your requirements, please contact us to quote and produce according to your requirements.

 

33kv electric power transformer, Power transformer

 

Power transformer's Feature

1.Core made of high quality cold-rolled sillicon sheet

2.Coil made of high quality oxygen-free copper

3.Multilayered cylindric structure for high-voltage winding, toroidal structure for low-voltage winding, fine performance

4.New insulation structure enhances the ability agaist short circuit

5.Hermetic radiator oil tank, reduced volume and prolonged service life

6.Special securing structure, no drifting during shipping and sustained operation

7.Security: pressure relief valve, signal thermometer, gas relay

8.Corrosion resisting treatment, maintenance free

 

General
This kind of product is applied to power system of three-phase, 50/60Hz as well as 35kv and below, it is the main transformer equipment of medium and small-sized transformer substation, supplies power distribution, power and illumination for the industry and agriculture.
Company introduces in domestic and overseas advanced technique, adopts the latest material and optimizes design, which enables the product structure more reasonable, and greatly improves the product electric strength, mechanical strength and heat-sinking capability.
 
Structural Features
Iron core
The iron core is made of high quality cold rolled silicon steel sheet, adopts the kinds of types like full-bias multi-step seam, no punched hole, winding iron core, etc.. besides, both stainless steel stay plate and epoxy glass belt are for clamping it.
Coil
High quality enameled wire that is made of oxygen free copper or paper wrapped flat copper wire is used as conductor, the coils is provided kinds of types such as drum type, spiral type, improved spiral type, continuous type and interleaved type.
Oil tank
The oil tank is of barrel type or shield type, the heat-sinking element is provided with corrugated plate or plated radiator.
Not been equipped with trolley, but there is a base that accords with national standard rail gauge welded at the bottom of box for your convenience.
Safety protection device
   According to national standard and users requirements, It will be equipped with following devices: pressure relief valve, signal thermometer, oil purifier, oil conservator, oil sampling valve, etc..
 
Service Environment
Device types: outdoor type
Normal environment conditions of use: the elevation not more than 1000 m
Environmental highest temperature + 40°C, lowest -25°C
The special environment conditions of use: elevation of more than 1000 m
Environmental highest temperature + 40°C,  lowest -45°C. ( when you order details)
Mounting ambient: no corrosive gas, no obvious dirt environment
 
Accord to standard
1. IEC60076
2. GB1094.1 ~ 2-1996 power transformer
3. GB1094.3. 5-2003 power transformer
4. GB/T6451-2008 oil-immersed three-phases transformer power technical parameters and requirements 

 

 

 

Technical specs:

 

Rated capacity (KVA)

Voltage combination

Connection symbol

Loss(KW)

No-load current(%)

Impedance voltage(%)

Weight(Kg)

H.V.(KV)

High voltage tapping range

L.V.(KV)

load

No-load

oil weight

overall weight

50

20

24

33       35     38.5

±5%

0.4 0.415 0.433

Dyn11  Yyno Yd11

1.21

0.21

2.00

6.5

265

860

100

2.02

0.29

1.80

310

1150

125

2.38

0.34

1.70

320

1190

160

2.83

0.36

1.60

360

1230

200

3.33

0.43

1.50

390

1300

250

3.96

0.51

1.40

425

1480

315

4.77

0.61

1.40

460

1590

400

5.76

0.73

1.30

490

1760

500

6.93

0.86

1.20

540

2140

630

8.28

1.04

1.10

620

2380

800

9.9

1.23

1.00

780

2800

1000

12.15

1.44

1.00

910

3850

1250

14.67

1.76

0.90

1060      

4600

1600

17.55

2.12

0.80

1210

5200

 

 

 

 

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