S13-20kV-Oil-immersed transformer

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S13-20kV-Oil-immersed transformer

Technological innovations

  1. Corrugated fuel tank;
  2. Seven level temperature control technology to ensure operational safety;
  3. NOMEX paper insulation system;
  4. High temperature resistant oil;
  5. The robot fully automatic lamination adopts a fully inclined 45 degree 7-step step seam structure.
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Product Applications

Power plant, power system, coal and mine, transportation,etc.

Technical Parameter

Material, size, MOQ, color, parameters, use table layout

Features

According to the current international standard GB/T6451-1999 “Technical Parameters and Requirements of Three-phase Oil-immersed Power Transformers”, the average no-load loss of S13-MRL series is reduced by 50%, and the average load loss is reduced by 30% for capacities between 30 to 1600kVA. For S11-MRI series, the average no-load loss is reduced by 30%, and the average load loss is reduced by 25%.

Low no-load current

due to the excellent quality of the roll core material and the winding processing characteristics, the no-load current is significantly reduced. According to the current national standard GB/T6451-1999, the average no-load current of S13-MRL series is reduced by 75% and the average no-load current of S11-MRL series is also reduced by 75%.

Low operating noise

According to JB/T10088-1999 noise standards, the noise of S13-MRL and S11-MRL series is reduced by about 79dB.

Strong resistance to short circuit

The transformer body has an overall three-sided prism shape and screw bolts are set up around the four sides and in the center. The top and bottom iron rails are insulated and laminated with wooden blocks, which effectively resist the axial and radial mechanical stresses during sudden faults or short circuits.

Common Questions

Q1: Are you a manufacturer or a trading company?
A: We are a direct manufacturer with over 50 years of expertise in power transformers, inductors, and reactors. Being a factory-direct supplier means you get competitive pricing, full technical support, and complete control over production quality.

Q2: What is your warranty policy?
A: We stand behind the reliability of our products with a minimum 12-month warranty. Extended warranty options are also available depending on your project requirements.

Q3: What is the lead time for mass production?
A: Our standard lead time is 7 to 25 working days, which varies based on the order quantity and customization complexity. We always strive to balance fast delivery with meticulous workmanship.

Q4: How do you ensure quality control in your factory?
A: We implement a rigorous 100% inspection system. Throughout the entire manufacturing process—from incoming raw materials to finished products—our products go through 8 dedicated QC checkpoints to guarantee zero defects and long-term operational stability.

Q5: Can you offer customized products? How do I get a tailored solution?
A: Absolutely. We specialize in fully customized designs based on your specific application and electrical parameters. Simply share your requirements, and our engineering team will provide you with the optimal solution within 48 hours.

Q6: What information do you need for a custom transformer or reactor?
A: A technical drawing is the most efficient starting point. If that’s not available, please provide your required power (capacity) rating, voltage levels, installation size limitations, insulation class, and any special environmental conditions.

Q7: How quickly can I get a price, and how do I contact you?
A: We typically issue a detailed quotation within 24 hours after receiving your inquiry. You can reach us via Email at sales@hnlsdz.com or connect with us on WhatsApp at +86 17267488565 for immediate assistance.

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