69 kV 18 MVA Power Transformer

  • Primary Voltage Ratings: 69 kV Delta
  • Secondary Voltage Ratings: 13.8kV Wye
  • H.V. TAP RANGE: 69kV ± 2*2.5%
  • CONNECTION TYPE: Dyn1
  • TYPE: Conservator type
  • Standards: IEC
  • Application: Substation
  • Power Rating: 18 MVA, 24 MVA
  • Cooling Method: ONAN, ONAF

The 18 MVA transformer, manufactured by Daelim Transformer in December 2016, serves a substation in Guayaquil, Ecuador. Designed to IEC standards, it features a high voltage of 69 kV and a low voltage of 13.8 kV, with ONAN/ONAF cooling. It has an impedance of 7.3% at 18 MVA. Key features include no-load losses of 14.8 kW and load losses of 52 kW. Daelim Transformer provides reliable, high-efficiency products with competitive pricing and fast delivery. Contact us for detailed specifications and quotes.

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18 mva transformer at 69kv substation
The 18 MVA transformer was completed by Daelim Transformer in December 2016 and serves a substation in Guayaquil, Ecuador. Designed and manufactured to IEC standards, this transformer features a high voltage of 69 kV and a low voltage of 13.8 kV. The cooling method is ONAN/ONAF, and the impedance at 18 MVA is 7.3%.

HIGH VOLTAGE SIDE
Position Tap Switches Voltage Current
18 MVA 24 MVA
1 2-3 72450V 14.4A 191.3A
2 3-4 70725V 146.9A 195.9A
3 4-5 69000V 150.6A 200.8A
4 5-6 67275V 154.5A 206A
5 6-7 65550V 158.5A 211.4A
LOW VOLTAGE SIDE
Voltage Current
18 MVA 24 MVA
13.8 kV 753.1A 1004.1A

Losses:

  • No-Load Loss: 14.8 kW
  • Load Loss: 52 kW

Weight:

  • Tank and Accessories: 12,000 kg
  • Oil: 8,000 kg
  • Active Part: 17,000 kg
  • Transport Weight: 29,500 kg
  • Total Weight: 36,500 kg

Accessories:

18 mva transformer accessories

  • Pressure Relief Device with Contact
  • Oil Temperature Indicator with Contacts
  • Winding Temperature Indicator with Contacts
  • Vacuum Valve for Conservator Tank
  • Winding Thermometer
  • Oil Thermometer
  • Cooling Radiator
  • Conservator
  • Air Breather for Main Conservator
  • Draining and Filling Valve for Conservator
  • Connection Valve for Conservator and Rubber Bag
  • HV CT Terminal Box
  • LV CT Terminal Box
  • Oil Sampling Device
  • Cooling Fans (Single Phase AC 220V, 60 Hz)
  • Control Box

Daelim Transformer is a leading transformer manufacturer, delivering hundreds of large power transformers annually to markets in the Americas and Europe. Our team is proficient in IEEE, ANSI, IEC, EU, CSA, and AS standards. We offer safe, reliable, environmentally friendly, and high-efficiency transformer products with competitive pricing and quick delivery. Contact Daelim Transformer now for specifications, pricing, and technical documentation.

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