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Medium-voltage transformers
VFI single-phase pad-mounted transformer
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VFI single-phase pad-mounted transformer

Eaton’s Cooper Power series VFI single-phase pad-mounted transformer combines voltage transformation and sectionalizing in a compact, money-saving package. Delivering comprehensive system protection, the vacuum fault interrupter transformer enables utilities to dramatically reduce the duration and scope of outages while optimizing performance.

Single-phase underground distribution transformer
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kVA
10-167
VFI rating
200 A continuous
Interrupting Rating
12,000 A rms

Core features

  • Reduces the number of customers impacted by an outage by up to 50%
  • Cuts time required to locate a fault by up to 50%
  • Provides ultimate reliability and flexibility through an extensive range of programmable controls and settings
  • Ideal for residential applications where space is limited or inline fault or radial tap protection is difficult
  • VFI sectionalizing capabilities deliver superior system protection
  • Slashes installation costs, complexity and space requirements compared to separate single-phase transformer and switchgear installs
  • Helps improve SAIDI and SAIFI metrics
  • Utilizes industry-standard protection schemes to deliver unparalleled transformer overcurrent and fault protection
  • Provides ease of use with resettable breaker operation, programmability and coordination with upstream and downstream protection devices
  • Offers safety and security with deadfront construction, coupled with aesthetically pleasing, low-profile Shrubline (ANSI Type-2) design
  • Meets or exceeds industry standards including ANSI, NEMA and DOE Energy Efficiency

Decrease the duration and scope of outages

The VFI transformer is capable of isolating faults up to 50% faster than conventional fused equipment — and can cut the number of affected customers in half. By dramatically reducing downtime, the VFI helps utilities enhance customer satisfaction.

Get more protection in less space

Only Eaton combines a transformer and sectionalizer in the smallest possible footprint, providing unparalleled reliability for underground systems with faster installation at a lower overall cost.

One solution, multiple applications

The VFI transformer easily coordinates with upline and downline protective devices as system changes occur. Use to tap off a main underground feeder; in place of a three-way junction cable; to sectionalize points on a long or densely loaded feeder; in high potential cable failure areas; and as a tie point between two systems.
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Eaton’s mission is to improve the quality of life and the environment through the use of power management technologies and services. We provide sustainable solutions that help our customers effectively manage electrical, hydraulic and mechanical power – more safely, more efficiently and more reliably. Eaton’s 2019 revenues were $21.4 billion, and we sell products to customers in more than 175 countries. 
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