Fuseless Capacitor Banks


Eaton’s Cooper Power series fuseless capacitor banks feature the latest capacitor technology, the Standard-Duty (SD), Heavy-Duty (HD), and Extreme-Duty (XD) all-film capacitors. The banks are designed to meet or exceed all applicable ANSI, IEEE, NEMA, and IEC standards. The industry demand for more reliable and lower total life cycle cost (TLC) capacitor equipment has essentially made the fuseless capacitor bank the standard for substation applications at 34.5 kV and higher. Fuseless banks have been offered since the late 1980’s and are not a new technology, but an application of an existing technology, the all-film capacitor we introduced in 1971.


Fuseless capacitor banks offer the following advantages:

  • Low initial and operating costs
  • Low losses
  • Small footprint
  • Ease of unbalance protection
  • Ease of installation and maintenance
  • Increased protection against animal faults
  • Increased reliability and availability
  • Ideal for harmonic filters

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