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69kV 4200kVA 5250kVA 3 Phase Power Transformer
Product Description
110 kV 115 kV power transformers according to standard
1. GB 6451 Specification and technical requirements for oil-immersed power transformers;
2. IEC 60076 Power Transformers;
3. AS NZS 60076 Power Transformers;
4.CSAC88-16 Power Transformers;
5. ANSI/IEEE C57.12.00 IEEE Standard for General Requirements for Liquid-Immersed Distribution, Power, and Regulating Transformers;
6. GOST R 52719 Power Transformers - General Specifications;
7. EN60076 Poer Transformer;
8. Local After-Sales Services In North America South America and other regions respond to your needs within 24 hours.
115 kV Transformer
The SF11-20000/115 is a 115 kV 20 MVA power transformer, offered by JZP Transformer. This transformer adheres to the stringent production standards of ANSI C57 Std. It features a high voltage capacity of 115 kV and a low voltage rating of 13.8 kV.
JZP Transformer brings a wealth of experience and a proven track record in high-voltage transformer projects within the American market. Their technical and sales teams demonstrate a deep understanding of local regulations and compliance with ANSI, IEEE, and CSA standards. Daelim Transformer's HV transformers have found successful applications in various installations across the United States, Canada, Mexico, Australia, Ecuador, and other nations.
115 kV 20 MVA Transformer Features
Voltage: This transformer operates at 115 kV and has a substantial capacity of 20 MVA.
Oil Conservator: Equipped with an oil conservator for enhanced performance and longevity.
Vector Group Symbol: The transformer follows a Dyn1 vector group symbol.
Cooling Methods: Utilizes a flexible cooling system, including ONAN, ONAF1, and ONAF2 methods. The power ratings differ under these methods: 12 MVA for ONAN, 16 MVA for ONAF1, and a robust 20 MVA for ONAF2.
Insulation Levels: The high-voltage insulation level is set at 550 kV, while the low-voltage insulation level is 110 kV.
Temperature Ratings: This transformer is designed to handle a maximum winding temperature rise of 65℃ and a maximum oil temperature rise of 55℃.
Tap Changer: The HV side boasts a versatile 5-position tap changer, allowing for five levels of voltage regulation within the range of ±2×2.5%.
Bushings: The high and low-voltage bushings are conveniently top-mounted.
Surge Arrestors: For enhanced safety and protection, the high voltage side is equipped with three surge arrestors.
110 kV 115 kV Transformer
115kV/110kV power transformers are designed and optimized by absorbing and utilizing advanced technologies domestically and abroad to optimize the transformer core, coil, body, leads, fuel tank, and other components, which feature low partial discharge, low loss, low noise, lightweight, and high reliability. Its excellent performance has won high praise from users and relevant experts. This product has the characteristics of stability, economy, and environmental protection, and is suitable for power plants, substations, large industrial and mineralization enterprises, etc.
Testing and Qualification
The 115 kV 20 MVA transformer undergoes a comprehensive series of tests to ensure it meets the rigorous standards set by ANSI C57. These tests include:
Measurement of Insulation
Measurement of Voltage Ratio and Vector Group
Measurement of Winding Parameters
Separate-Source Power-Frequency Voltage Withstand Test
Measurement of Bushing Capacitance and Dielectric Dissipation Factor
Lighting Impulse Voltage Withstand Test
Induced Over Voltage Withstand and Partial Discharge Test
Measurement of Impedance Voltage and Load Losses
Zero-Sequence Impedance Test Measurement of Noise Level
Pressure Seal Test Temperature Rise Test
Measurement of Winding Frequency Spectrum Response Curve
Current Transformer Test Polarity Test Dimension Test
This battery of tests ensures that the 115 kV transformer complies with ANSI C57 standards and is fully qualified, guaranteeing its reliability and performance.
110kV and 115kV Power Transformer Specifications
| 110kv Three-phase duplex winding power transformer on load changer | ||||||
| Rating | Voltage Combined | No Load Loss | Load Loss | No Load current | Short-circuit impendance | |
| (kVA) | HV | LV | ||||
| 6300 kVA | 110kV ±8 | 6.3kv | 10 | 36 | 0.8 | 10.5 |
| 8000 kVA | ×1.25% | 6.6kv | 12 | 45 | 0.8 | |
| 10000 kVA | 10.5kv | 14.2 | 53 | 0.74 | ||
| 12500 kVA | 115kV ±8 | 11kv | 16.8 | 63 | 0.74 | |
| 16000 kVA | ×1.25% | 20.2 | 77 | 0.69 | ||
| 20000 kVA | 24 | 93 | 0.69 | |||
| 25000 kVA | 28.4 | 110 | 0.64 | |||
| 31500 kVA | 33.8 | 133 | 0.64 | |||
| 40000 kVA | 40.4 | 156 | 0.58 | |||
| 50000 kVA | 47.8 | 194 | 0.58 | |||
| 63000 kVA | 56.8 | 234 | 0.52 | |||
| 110kv Three phase three winding power transformer on load changer | ||||||
| Rating | Voltage Combined | No Load Loss | Load Loss | No Load current | ||
| (kVA) | HV(kV) | MV(kV) | LV(kV) | |||
| 6300 kVA | 110kv±8 | 35kv | 6.3kv | 12 | 47 | 0.95 |
| 8000 kVA | ×1.25% | 37kv | 6.6kv | 14.4 | 56 | 0.95 |
| 10 MVA | 38.5kv | 10.5kv | 17.1 | 66 | 0.89 | |
| 12.5 MVA | 115kv±8 | 11kv | 20.2 | 78 | 0.89 | |
| 16MVA | ×1.25% | 24.2 | 95 | 0.84 | ||
| 20MVA | 28.6 | 112 | 0.84 | |||
| 25MVA | 33.8 | 133 | 0.78 | |||
| 31.5MVA | 40.2 | 157 | 0.78 | |||
| 40MVA | 48.2 | 189 | 0.73 | |||
| 50MVA | 56.9 | 225 | 0.73 | |||
| 63MVA | 67.7 | 270 | 0.67 | |||
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