• Sourcing Solutions
  • Services & Membership
  • Help & Community

Quick Details

  • Place of Origin: Beijing, China (Mainland)
  • Brand Name: DAELIM
  • Model Number: SZ,SF,S11,S9 transformator 25kv
  • Usage: Power
  • Phase: Three
  • Coil Structure: Toroidal
  • Coil Number: 2 or 3 windings
  • KEY word: transformator 25kv
  • Cooling method: ONAN ,ONAF,ONWF,etc
  • Type of tap changer: OLTC or NLTC
  • Winding Material: High grade copper
  • Vector group: Dyn11,YNd11,YNyn0d11,Yd11,etc
  • Voltage range: Up to 230KV(max)
  • Power range: Up to 200MVA(max)

Packaging & Delivery

Packaging Details package details:standard international package ,proper for any special customer air or sea requirements ,one set one case
Delivery Time according to your quantity

10kv-220kv three phase oil-immersed three-phase transformator 25kv

Item No.

Information

Description

Oil immersed Distribution Transformer

 

 

 

Summary

The three-phase oil-immersed distributing transformer applies new type insulating structure and makes short-circuit resistance strong. The iron core is made of high-quality cold-rolled silicon-steel plate. High-voltage winding group is made up of high-quality oxygen-free copper lines and it adopts multilayered drum type structure. All fasteners have been processed with special treatment to prevent them from loosening.

 

Reliable Structure

 

 

 

1. Spiral loops with longitudinal oil path to produce a better interior cooling effect;

2. Improve the effectual support of the loop’s terminal face to strengthen the anti-short circuit electricity capability;

3. New suspending structure and instrument-positioning frames to guarantee that the long distance transport and movement will be more reliable.

 

 

Excellent Materials

 

1. Oxygen-free copper lines of lower resistivity, which will become smoother and burr-free after series of additional surface treatment, so the load loss of our transformer is lower and the electric performance is better.

2. High-quality silicon-steel plates which are of lower unit loss, and the no-load of the transformers is lower.

3. High-quality wooden laminating insulation pieces, which won’t split or move even under the influence of short circuit.

4. Thoroughly filtrated transformer oil containing less water, gas and impurities, which makes our transformers work better.

5. High-quality rubber sealing material, which can prevent the transformers form aging or leakage.

 

 

Transformer Service Condition

Altitude cannot exceed: 1000m

Highest ambient temperature: +40°C

Highest daily average temperature: +30°C

Highest annual average temperature: +20°C

Lowest outdoor temperature: -25°C

 

Good Technology

Compare with S7 series product, S9 series product reduces the no-load loss by 10%, load loss by 24% and no-load electric current by 46%; as a result, the operating cost will drop by 19%. Improved from S9 series product, S11 series product reduces the no-load loss by 20%; no-load electric current by 70%85%; average temperature by 10K; noise level by 2-4db; and double the products’ service life. Even under 20% overloads, it can also work for a long period of time.

 

technical parameter

Rated power
(kVA)


High Voltage
(kV)


H.V Tap range


Low Voltage
(kV)


Connection Symbol


Short-Circuit Impedance
(%)


No-load Loss
(W)


On-Load Loss
(W)


No-load Current
(%)

 
 

30

6
6.3
10
10.5
11

±5%
±2×2.5%

0.4

Yyn0
Dyn11

4

33

600

1.7

 

50

43

870

1.3

 

63

50

1040

1.2

 

80

60

1250

1.1

 

100

75

1500

1

 

125

85

1800

0.9

 

160

100

2200

0.7

 

200

120

2600

0.7

 

250

140

3050

0.7

 

315

170

3650

0.5

 

400

200

4300

0.5

 

500

240

5150

0.5

 

630

4.5

320

6200

0.3

 

800

380

7500

0.3

 

1000

450

10300

0.3

 

1250

530

12000

0.2

 

1600

630

14500

0.2

 

2000

5

750

17400

0.2

 

2500

900

20200

0.2

 

 

 

Brand

Daelim

Color

According to custom or as our model

Size

Standard size or Custom size

MOQ

1pcs

Lead Time

15-30 work days

Payment

Bank Transfer, Paypal, Western Union, Escrow, T/T, L/C

Sample shipment

UPS/DHL/Fedex/TNT/EMS,ect.

 

Package

standard international package .proper for any special customer air or sea requirments,one set one case

 Note:Large order delivery time according to your quantity and type of product

  the picture of factory

 

Transaction History of the Supplier

Below is the information about the supplier's transactions conducted via Alibaba.com. If you require further details regarding the transaction data, please contact the supplier directly.

Transaction Overview

Transactions

Transaction Details

This supplier has completedtransactions with buyers from .

Shipping Destination
Transaction Value
Transaction Date
Email to this supplier
Trade Assurance
China (Mainland) | Trading Company
Transaction Level:
Supplier Assessments:
17 Transactions 310,000+
The supplier’s transactions conduted via Alibaba.com in the past 6 months.
The supplier supports Trade Assurance – A free service that protects your orders from payment to delivery.
Supplier's Trade Assurance Limit: US $249,000
Learn More