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Metal-Enclosed Capacitor Banks From Maysteel
Tailored for Industrial and Utility Applications

SmartBank™ Metal-enclosed Capacitor Banks

February 2007

Custom-engineered metal-enclosed capacitor banks from Maysteel deliver reliable, cost-effective power factor improvement for wind farms, refineries, substations, and other industrial or utility applications.

Part of the SmartBank™ series of power quality solutions, Maysteel’s metal-enclosed capacitor banks provide capacitive reactive power ratings up to 30 MVAR in a single enclosure. Either fixed or automatically switched designs are available, with up to 20 steps. System voltages range from 2.4 to 34.5 kV RMS. The banks meet or exceed ANSI, IEEE, NEC, NESC and other applicable standards.

Metal-enclosed banks are typically assembled, wired and tested before shipment, but can be field assembled if desired. A robust steel base simplifies installation and allows single-piece shipments up to 50 feet in length.

Other major features include:

Free-standing, heavy-gauge, compartmentalized Maysteel enclosures
Front and rear doors for easy accessibility
Integral control and protection systems
Short circuit ratings to 61kA RMSsymmetrical
Fused main disconnect switch or interlock with grounding switch
Key interlock system and three-point latching with padlockable handles
Mesh-backed ventilation louvers allow filter changes without opening the enclosure
Top-quality Maysteel switches and capacitors, or choice of other component brands

Maysteel, LLC, based in Menomonee Falls, WI, specializes in the manufacture of enclosures, assemblies and components – including power capacitor banks, harmonic filter banks, vacuum and oil switches, switchgear, and multi-purpose electrical gear. The company was founded in 1936 and today has four manufacturing plants comprising more than 500,000 square feet of production space. Since 1965, Maysteel has been privately owned by the U.S.-based Everett Smith Group, Ltd., which has operations in the United States, United Kingdom, Mexico, South Africa, Argentina and Hungary.