Transformer Envirotran critical load substation transformer

With enhanced surge protection and a hardened design, Eaton’s Cooper Power series Envirotran Critical Load Transformer (CLT) offers an unparalleled combination of reliability, efficiency, safety, performance and value. Providing superior operation in stressful electrical environments, these substation transformers are filled with Envirotemp FR3 dielectric fluid for enhanced fire protection and longer lifespan.

  • Available up to 35 kV and 12 MVA

  • Envirotemp enables NECT compliance for indoor and roof-mounted transformers

  • Overload capability above nameplate without significant loss of insulation life

  • Not reliant on an RC snubber circuit for transient surge protection

  • ANSI/IEEE BIL withstand ratings are higher for liquid-filled transformers, making them less susceptible to failure

Envirotran critical load substation transformer Specifications:

  • Basic Impulse Level, BIL (kV)
    30kV to 250kV
  • Max. Available Power (kVA)
  • Max. Primary Voltage (V)
  • Max. Secondary Voltage (V)


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