1. IEC60076
2. 5 years warranty
3. easy install&free maintenanc

If you have interest in our products,or there is anything we can do for you ,pls feel free to contact me !! Thanks very much.——Lisa Luo

1.About us

We're manufacturer  and specialize in electrical field for several years,also export products with good quality and right price in China. If the following parameter specifications do not meet your requirements, please contact us to quote and produce according to your requirements.

Our power transformers sell well all over the world, and are exported to Ethiopia, Malaysia, Thailand, Kenya, Mozambique, Congo, Rwanda, Pakistan, South Africa, etc. 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!

2.Product Features foroil immersed distribution transformer specification

Oil immersed distribution transformer specification produced by MINNAN have adopt series of important reforms in material, process and structure. The transformer has the features of small size, light weight, hign efficiency, low loss, reliable operation etc. which can reduce a large amount of power network loss and operation expenses with significant economic benefits.

3.Scope of Application

 Oil immersed distribution transformer specification is suitable for power plant, substation, heavy section plant or enterprises etc.


4. Product Standard

The product complies with national standard: GB1094.1-1996 [Power Transformer Section 1 General], GB1094.2-1996 [ Power Transformer Section 2 Temperature Rise] , GB1094.3-2003 [ Power Transformer Section 3Insulation Level, Insulation Test and External Insulation Air Gap] , GB1094.5-2003[ Power Transformer Section The Capacity to Bear Short Circuit] , GB/T6451-2008[Three-Phase Oil-immersed On-Load Tap-Changing Transformer Technical Parameters and Requirements].

We also can produce products as per standard offered by customers from domestic and overseas. For details, pls refer to the information in "Inquiry and Ordering Instruction" part  bellow.

5.Model and Meaning

(1) (2)(3)(4)(5)(6)(7)-(8)/(9)(10)

Model No.



Phase No.: D for single phase, S for three phase


Cooling Mode: J for self cooling, normally not marked, F for oil-immersed air cooling, S for water cooling


Circulation Mode: Natural circulation not marked, P for forced circulation


Coil No.: Dual coil not marked, S or triple coil, S for dual splitting


Conductor Mode: Bronze Conductor not Marked, L for aluminum conductor


Tap-Changing Mode: Non-Excitation Tap-changing not marked, Z for on-load tap-changing


Design Serial No.: 9, 10......


Rated Power(kva)


High Voltage Coil Rated Voltage Level(kv)


Protection Code: Usually don't mark, TH for hygrothermal, TA for hot-dry

6. Product Application Enviroment Conditions

Device Type:

Outdoor or indoor

Environment Temperature:

+40°C (highest temperature), -30 °C (lowest temperature)


≤1000 meters (if >1000 meters, temperature rise need to be modified)

Relative Temperature:

≤ 90%(25 °C )

Installation Area:

Area with no corrosive gas and obvious fouling etc.

7. Product Structure Features-  power distribution transformer specification


Remark: Specification of rectifier transformer could be customized.

8.When inquiring or ordering, customer need to offer bellow information to begin our cooperation

(1) Product name and model no.    (2) Rated capacity,  (3) System voltage, (4) Voltage combination, (5) Coupling group, (6) Short circuit impedance, (7) No-load loss, (8) On-load loss, (9) No-load current, (10) Rated freqency, (11) Cooling method, (12) Altitude,  (13) Working environment and other special requirement.

Remark: Specification of rectifier transformer could be customized.

Packaging & Shipping


Wooden Package


FOB Shanghai Port


50% T/T in advance, 50% T/T at sight of B/L copy ; L/C at sight

Quotation Valid Date:

30 days

Delivery Time:

Within 15-30 days after 30% deposite received

Transportation Method:

Sea or Railway

Oil filling in vacuum condition

High voltage:6/6.3/6.6/10/10.5/11

Low voltage:0.4

High voltage tapping rang:±5% or ±2x2.5%

Connection symbol:Yyno or Dyn11



FOB Price: US $ 100 - 100,000 / Set | Get Latest Price
Minimum Order: 1 Set/Sets
Port: Ningbo/Shanghai
Payment Terms: L/C

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