5.28 MVA BESS Step Up Pad Mount Transformer - 480Y/277 x 480Y/277 Grounded Wye Primary, 34500V Delta Secondary - KNAN/Bell Green - W/ Electrostatic Shield

Product Overview

5.28 MVA BESS Step Up Pad Mount Transformer - 480Y/277 x 480Y/277 Grounded Wye Primary, 34500V Delta Secondary - KNAN/Bell Green - W/ Electrostatic Shield is a product intended for professional commercial and industrial applications.

Key Specifications

• Temperature Rise: This unit features 65°C temperature rise for reduced heat waste, increased reliability and longer life. At 65°C temperature rise, the transformer offers 5280 KVA (5.28 MVA). The transformer meets standard efficiency requirements. The combination of low temperature rise and high efficiency makes this unit suitable for use in electrical rooms, air conditioned spaces in buildings, underground vaults, and similar locations, in addition to outdoor areas.
• Insulation Fluid: The MT-PML-R89-3P-GE.E-5.28MVA-DMA-LT-DF-A6-BB-CZ-2C2-M1 features biodegradable cooling fluid (KNAN) with a capacity of 700 gallons. We offer transformers with FR-3 oil fluid, if needed.
• Biodegradable Fluid: Biodegradable cooling fluid (vegetable oil) has a higher heat capacity compared to mineral oil, making the liquid safer to use and more reliable during operations. Vegetable oil has a higher flash point and fire point than mineral oil, hydrocarbon oil, silicone oil and synthetic ester. This cooling fluid is also non-toxic and can tolerate higher breakdown voltages than mineral oil. When operating at high temperatures, biodegradable cooling liquid sustains up to 120% loan conditions, which helps preserve the transformer's lifespan and performance.
• Gauges: The following gauges are included with the system: liquid level, temperature, and pressure/vacuum gauges. Standard liquid level, temperature, and pressure/vacuum gauges are analog, manual reading types. These gauges have auxiliary contacts.
• Fault Pressure Devices: This transformer features an automatic action fault pressure device. Fault pressure devices are used to detect high rates of pressure rise within the tank.
• Rapid Rise Relay: There are no rapid rise relays on the unit. This safety component is designed for protection when a rapid increase in tank pressure occurs. The relay is suitable for detecting sudden pressure fluctuations above predetermined safe limits.
• Surge arresters: This system comes with high elbow surge arresters on the secondary (medium voltage) side. Designed for over-voltage and transient voltage protection, the components prevent damage caused by lightning, internal switching or voltage surges. We can offer models without high elbow surge arresters that have mounting provisions for customer-provided surge arresters.
• Valves: The MT-PML-R89-3P-GE.E-5.28MVA-DMA-LT-DF-A6-BB-CZ-2C2-M1 is equipped with a pressure relief valve, fill valve, and drain valve with sampler port.
• Load Break Switch: This transformer is equipped with one independently operated 2-position load break switch on the secondary (medium voltage) side.
• Protection Fuses: This transformer is equipped with bayonet fuses on the secondary (medium voltage) side. For units without protection fuses, upstream protection is provided. We recommend provisions for protection fuses when possible, as blown fuses may require more frequent oil changes.

This item is grouped with 3 MVA / 3000 KVA Pad Mount Transformers.

Before ordering: Verify ratings, dimensions, compatibility, and installation requirements before ordering.