Yawei S11 1200KVA & 1600KVA Distribution Transformer

Jiangsu Yawei Transformer Co.,Ltd. is one of the leading manufacturers and suppliers of yawei s11 1200kva & 1600kva distribution transformer in China. Please feel free to buy high quality yawei s11 1200kva & 1600kva distribution transformer from our factory. Customized orders are welcome.

YAWEI 1200KVA & 1600KVA 3 phase transformer was delivered to Zimbabwe in 2025. It is a Step Down transformer from 11kv to 0.669kv, the primary voltage is 11kv, the secondary voltage is 0.669kv. We can supply both Step Up and Step-Down transformer, the cooling method is ONAN. Our distribution transformer was designed with advanced technology and adopts high quality material and components which result in reliable quality and long service time.

YAWEI ensures that each one of our delivered transformer had passed the full acceptance test before shipping and we remains 0 fault rate record for more than 10 years so far, oil immersed power transformer is designed in accordance with IEC, ANSI and other major international standards.

Dispaly of Transformer Manufacturing

Iron Core

A transformer core is made through multiple steps of manufacture:
Material Selection: The core material will be made of silicon steel, which has good magnetic conduction and small losses.
Cutting: Steel sheet is cut to a certain pattern. They are usually thin so as to reduce the eddy current loss.
Lamination: The cutting sheet is stacked and laminates. Limit eddy current flow to cut on energy losses.
Insulation: Insulating material is introduced between laminate for further loss reduction and short circuit prevent

Assembly: And the laminated core, we put it in its final shape, that would be more like a rectangle or a cylinder shape, then we will do that.
Coating: Can put on a protective coat to prevent from rusting and make it to last long.
Testing: Finally it gets tested to make sure it works as well as necessary.
To ensure the transformer core does good and useful things for electrical stuff.

Winding

1. Enamelled magnetic copper or aluminum wire is produced by Nantong Budweiser, which is a 100% subsidiary company belongs to YAWEI.

2.Our windings are made of high quality copper.

3.Both High Voltage (HV) and Low Voltage (LV) windings are done using Coil Winding Machines. The Copper or Aluminum strips/wires used in winding are meticulously selected for its quality to give the best output. The Copper or Aluminum strips/wires are paper covered and acts as insulators.

Oil Tank

1. Oil tank is produced by Nantong Zhihe, which is also a 100% subsidiary company belongs to YAWEI.

2. The oil tank is a power transformer housing containing the iron core, winding and transformer oil.

3. The corrugated tank structure is fully sealed, and the corrugated will expand and compress with the increase of oil, isolating the transformer from the atmosphere and preventing oil deterioration and moisture.

After oil removal, rust removal and phosphating treatment, the surface of corrugated oil tank is coated with rainproof paint. Moisture and salt spray.

Details in the distribution transformer

Routine tests of transformer include

Transformers do type tests advantages include:

Performance Verification: Type testing is carried out to make sure that the transformer conforms to the prescribed performance standards and operation criteria, proving it to be of good reliability.
Quality Assurance: Carry out standardized tests to check whether the quality of materials and the process of making things is good so that the transformer can last long.
Safety Compliance: Type tests check if the transformer meets safety rule requirements, lowering the chance of electric dangers and making it safe to work with safely.
Efficiency Assessment: Testing out how different loads effect the transformer would be our test to see where it might start to lose any types of energy, so where energy starts to leak.
Thermal Performance: Type tests check how hot transformers get – temperature rise – to see if they stay within safe limits.
Short-Circuit Strength: Tests see if the transformer can take short circuits, so it can fix faults without breaking.
Insulation Integrity: Type Testing is to see if the insulation system works well with different kinds of working loads and environment stuff.
Reduction of Field Failures: If we use typing to detect problems when they could arise in a controlled environment, it would decrease the likelihood of the issue arising in the real world.
Enhanced Customer Confidence: If you provide documented result from your tester it helps customer build more trust with your product and that you are committed to manufacturing a good product.
Regulatory Compliance: type tests make sure the transformer satisfies industrial standards and laws and regulations so its entry into the market and acceptance is smooth.
In general, type testing is essential for guaranteeing that transformer are safe, effective, and well, to produce a better transformers for our more satisfied customers.

Packaging

Wooden case or according to client's requirementsPackaging: Wooden case or nude packing according to client's requirements.The requirements for the making and reinforcement of packing boxes. we strictly apply to international standards.

Why Choose YAWEI?

1. Over 30 years professional experience in manufacture different kinds of electrical transformers.
2. Customer oriented professional technician team service. Complete and satisfying and in-time service for customer
3. Pass high standard quality test and certificate of UL, EC, IEC, CNAS,SA,IEEE,ISO9001:2000 quality system certification
4. Large and complete manufacturing from winding casing and power transfer. Complete control and main machine and material
quality. Service and product and customer cost is under control.
5. Good after-sales installation service for team abroad
6. Factory supply willing to establish long term cooperation with end user or trading company.

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Transformer Technical Specification Reference Point

Rated Power: It is often expressed in KVA (kilovolt-ampere) which is indicative of the largest load that the transformer could safely manage under normal conditions.
High voltage, low voltage: the rated voltages for HV and LV are normally expressed as kV(kilovolts)
Frequency: Frequency of the power supply the transformer is designed for 50 Hz or 60 Hz.
Cooling System: How cooling is done for the transformer, like using Oil for Natural and Air as Natural (ONAN) or force Oil through air and force air through oil and (OFAF).
Number of Windings: usually two: HV and LV windings.
Number of Phases: Transformers can be single phase or three phase; three phase transformers are more common in industry.
Tap Changer: Device to alter the output voltage; could be no-load tap changer or load tap changer.
Losses: core losses and copper losses, expressed in Watts (W).
Impedance: short circuit current limiting capability represents the transformer's ability to limit the short circuits currents, it is provided in% usually.
Temperature Rise: Oil and winding temperature rise of the transformer above rated load, expressed in K (Kelvin)
Insulation Level: The voltage rating that the transformer can withstand, which consists of basic insulation voltage and power frequency withstand voltage.
Connection Group: Describes the winding configuration for the transformer, such as Y/Δ or Y/Δo
Materials: Materials contributing to good transformer, such as copper windings, grain - oriented silicon steel cores.
Environmental Suitability: Transformer working environment, Maximum ambient temperature, maximum working altitude:
these are important to choose and test a transformer's performance so that it can be reliable and efficient for a certain application.