Consultants, engineering firms, contractors, and end-users are all reconsidering their previous uses of dry-type transformers indoors and making the switch to the superior new fluids. New fire safety and environmental advances have made the liquid-filled transformer the transformer of choice.

Specifically designed and approved for all indoor or roof-mounted applications placing the transformer near the load, Envirotran^® Transformers are suitable in all commercial and industrial environments.

In thirty years of use and over 250,000 units, transformers with fire-resistant fluids have never been the cause of a building or fluid-pool fire. VPI Dry-type and cast-resin transformers cannot claim this same perfect fire safety record.

Remove the headaches of installing an Indoor Powercenter in limited entry conditions with Cooper Power Systems new Triplex Indoor Powercenter.

Example: 2005 Dry-Type Transformer Fire at Bannow North Science Center

Other Examples:

• No fire-rated electrical vaults required
• No sprinklers or deluge systems required
• Containment pans available
• Less clearance distances required
• Lower insurance rates

Envirotran Indoor Powercenter Compared to Dry-Type Transformers:

• Lower Initial Cost
• Lower Installed Cost
• Higher Energy Efficiency
• Lower Sound Level
• Longer Insulation Life
• Higher Contamination Resistance
• Higher Short and Long Term Overloadability
• Routine Maintenance Does Not Require Downtime
• Integrated Overcurrent and Overvoltage Options May Eliminate Traditional Switchgear

• Unit substation transformers thru 10 mVA
• Close-coupled or stand-alone
• Primary Voltages: 5 kV through 35 kV, 200 kV BIL
• Secondary Voltages: 120 V through 15 kV, 95 kV BIL
• Classified by UL^® and Approved by FM
• 15% or 25% fan cooling
• 65°C or 55/65°C temperature rise

• Envirotemp^® FR3™ fluid - the highest firepoint of any fluid in the industry
• Enhanced transformer insulation life
• Meets all NEC safety requirements of Section 450-23 for indoor transformer applications
• EPA/ETV tested and approved

• Deadfront termination: radial, or loop configurations
• Containment pan
• K-factor rated
• NEMA TP-1 energy efficiency
• Vacuum fault interrupter (VFI) integral to the transformer tank
• 33% fan cooling rating