China Electrical Power Transformer manufacturer

Distribution Oil Electrical Power Transformer 25kv 5000kva 50/60Hz Frequency

Product Details:
Place of Origin: China
Model Number: S9,S11
Payment & Shipping Terms:
Minimum Order Quantity: 1
Price: 200-200000/piece
Packaging Details: wood
Delivery Time: 15 DAYS
Payment Terms: T/T
Supply Ability: 5000 pieces/year
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Detail Information

Usage: Power,Distribution Transformer Phase: Three
Frequency: 50/60Hz Type: Oil Immersed,Oil Type,oil Immersed Current Transformer 132kv
Product Name: 33/11 Kv 50/60Hz 5000Kva Oil Immersed Power Distribution Transformer Material: Copper+alumnium
Output Voltage: 15kv 10 Kv 0.4/0.69kv Winding Material: Cooper
High Light:

industrial power transformer


power distribution transformer

Product Description

Distribution Oil Electrical Power Transformer 25kv 5000kva 50/60Hz Frequency





220kv,110kv and 66kv low loss series transformer if our independently developed new generation of transformer on the basis of absorption of domestic and foreign advanced technology,which features low local discharge ,low loss,low noise,high reliability ,strong protection against abrupt short circuit,its excellent performence has been recognized ny wide users and high appeaised by experts.the full sealed suspending cover free product sell well nationwide.


Amount of local discharge :the apparent discharge amount under 1.5 times if rated voltage is less than 80pc.

Noise:product of 63mva and below is lower than 58db(an)

Power loss:no-load loss is 30% lower than that of IEC stanard.

Reliability:all in service product have no damage or oil leakage occurred;

Short circuit withstanding :model SFZ11-50000/132 smoothly passed the short circuit withstanding test of the national transformer quality supervision and inspection center and also passed holland KEMA quality control systom.




The high voltage aoil adopts an interleaved continuous structure to improve the voltage characteristica under impact voltage and make voltage evently distrivuted.all stays and pads are chamfered to keep highly reliable insulation.


In the transformer winding there is a zigzag oil guide structure so as to fully cool all areas inside the winding ,lower the temperature rise of the winding and the hot points of the winding and [rolong the service life of insulation.the HV and MV regulation system are independently provide with voltage regulating winding to balance the ampere turn of each winding effecticely lower the axial electrodynamic force generated at short circuit of transformer and improve abrupt short circuit withstanding capacity.


The winding adopts radial 0 margin design ,between the core and the paper sleeve of LV winding ,and between the LV,HV,voltage regulating windings ,as well as before insertion of stays and shround plate they are fully dried and tightly matched to ensure extremely good compactness and concentricity of the entire winding.




The core is made of high permeable grain orientated top quality coid rolled silicon sheet and the materical is cut with advanced germany geoge gmbh automatic shear line with the cut burrs controlled within 0.002mm.

The sillicon sheet fabrication adopts no-upper yoke lapped technology and all lapped joints of the sillicon sheet are 45 c full miters.the laminated core sheets are integrally pressed and adhered with epoxy resin to make the three leg two yoke core a strong and flat integral one with good verticality precision ,this effectively improves no ;oad performance and reduces noises.

Bracing plates are used as support between coil leg and inner coil.the iron yoke is tied with wpoxy resin impregnated glass fiber band,and the lower iron yoke and the lower section of oil tank is tightened with counter pressure bolts.the upper iron yoke and the upper section of oil tank are fixed at 3 locations .hence the body inside the oil tank can withstand the vibration during transportation without any shift.




The tank wall adopts wide steel sheet,which will be folded into corrugated structure without splicing,in this way welds are decreased and mechanical strength id enhanced ,meanwhile ,the corrugated wall has deverging effect ,and thus plays a role in dectease of noise .the routing troughs and control cabinets of the secondary circuit are all made of stainless the entire transformer has a simple and good looking .

All sealing surfaces use quality sealing material and are precision machined.

On the edge of the tank there are double sealing grooves,and the outer sealing materical is used to shade the atmosphere and ultra ray to protect the inner seaing being damaged,thus at utmost prolinging service life and enhancing reliablity of the seal.




As we have good cooperation tie with many subassembly manufactures of famous transformer brands,we are able to provide different subassemblies as per users requrments .the whole procedure of manufacture ,R&D and sales services are carried out strictly in accordance with interational stanards and ISO quality management system.


Note: Due to continuous product improvement, the dimensions provided in this sample are for reference only. If necessary, our company can design and produce according to user requirements. Please contact the company in time.

Core Core-type Transformer Cooling Method Dry-type Transformer
Winding Type Auto-transformer Certification ISO9001-2000, ISO9001, CCC
Usage Distribution Transformer Frequency Characteristics Power Frequency
Shape of Core Ring Material Epoxy Resin
Rate High Voltage 6-35kv Rate Low Voltage 0.4kv
Connection Symbol Yyn0, Dyn1 Insulation Level Li75AC35/AC3, Li125AC55/AC3, Li170AC70/AC3
Use for Industry Rated Capacity 30-2500kVA
Trademark Hengfengyou Specification Length: 1200mm-2550mm, Width: 1100-1500
Origin Qingdao,China HS Code 8504329000



Main Technical Parameters for 10KV level S9-M/S10-M/S11- M Series three-phase full-sealed non-excitaiton-tap-changing distribbution transformer
No-load loss(W) On-load loss(W) No load
S9 S10 S11 S9 S10 S11
30 6
0.4 Dyn11
4 130 110 100 600 600 600 2.1
50 170 150 130 870 870 870 2
63 200 180 150 1040 1040 1040 1.9
80 250 200 180 1250 1250 1250 1.8
100 290 230 200 1500 1500 1500 1.6
125 340 270 240 1800 1800 1800 1.5
160 400 310 280 2200 2200 2200 1.4
200 480 380 340 2600 2600 2600 1.2
250 560 460 400 3050 3050 3050 1.2
315 670 540 480 3650 3650 3650 1.1
400 800 650 570 4300 4300 4300 1
500 960 780 680 5150 5150 5150 1
630 4.5 1200 920 810 6200 6200 6200 0.9
800 1400 1120 980 7500 7500 7500 0.8
1000 1700 1320 1150 10300 10300 10300 0.7
1250 1950 1560 1360 12000 12000 12000 0.6
1600 2400 1880 1640 14500 14500 14500 0.6
2000 5 2830 2270 1940 17140 17140 17140 0.6
2500 3350 2690 2300 20260 20260 20260 0.5



Distribution Oil Electrical Power Transformer 25kv 5000kva 50/60Hz Frequency 0

Distribution Oil Electrical Power Transformer 25kv 5000kva 50/60Hz Frequency 1


Distribution Oil Electrical Power Transformer 25kv 5000kva 50/60Hz Frequency 2



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