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Open air capacitor banks
Eaton's comprehensive line of Cooper Power series open air bank solutions are available in externally fused, fuseless or internally fused designs. Each design is custom built in a variety of parallel/series combinations to meet a full range of application needs based on kvar requirements, system voltage, protection strategy and system solutions. Open air banks provide economical and reliable methods for reducing losses and improving power quality.
Engineered-to-order solution
Customised to meet specific application needs
Complete range of accessories
Easy integration
System improvements
Improved power factor and reduced losses
Core features
- Unfused [(standard-duty (SD), heavy-duty (HD) and extreme-duty (XD)] or internally fused
- Available with units mounted vertically or horizontally, based on installation conditions
- Robust, lightweight, welded aluminium frame (steel optional)
- Frame-integrated lifting provision
- Externally fused banks available with expulsion or current limiting fuses connected to each unit
- Compact, relay protected, fuseless banks utilising series string configuration
- Station-class bus support insulators
Modular construction
Eaton’s Cooper Power series open air capacitor banks use a range of frame structures and bus configurations that can be scaled and configured to meet application needs. These customisable configurations can apply a variety of series-parallel connections and allow for side-by-side or phase-over-phase bank orientation. Modular assemblies can optimise system footprint, reduce installation time and labour and allow for banks to be reconfigured, extended or relocated over time as system demands evolve.
Orientation options meet specific installation needs
Eaton's Cooper Power series open air capacitor banks are available with vertically or horizontally-oriented capacitor units. Vertical orientation results in bushings at right angles with respect to mounting floor. This type of construction is typically used to limit the bank footprint within the substation area and provide additional safety benefits. Horizontal orientation results in bushings being parallel with the ground. This type of construction is typically used when overall height is limited or more than three blocks are being stacked on top of each other. When facing significant height limitation, flat mounting is available.
Robust and reliable structure
Eaton’s Cooper Power series open air bank designs are made with a 6061-T6 aluminium welded frame, delivering a high strength, lightweight and corrosion resistant solution. Frames are analysed by in-house structural engineering and are fabricated in our factory. Frames are also available with galvanised steel construction, most commonly used in exceptionally large banks or to meet application-specific needs. Banks are engineered to meet specific site requirements, including wind, ice, other environmental conditions and seismic-specified loading.
Specifications
Ratings
| Per Capacitor Unit kvar | 50-700 (Externally Fused) 50-1000 (Fuseless) 200-1200 (Internally Fused) |
| Basic Insulation Level (BIL) | 75-200 kV |
| Quantity of capacitors per frame structure | 4-36 (typical) |
| System Voltage (kV L-L) | Up to 800 |
| Bank Mvar | 1-100 (typical) |
Standards
| IEEE Standards | Std. 18 |
| IEC Standards | 60871-1 |
| CSA | CAN/CSA-C871-1 |
Enclosure
| Bank frame | 6061-T6 aluminum Galvanized steel (optional) |
| Elevating structure (available) | 6061-T6 aluminum Galvanized steel (optional) |
Systems
| Bank type | Externally fused Fuseless Internally fused |
| Bank connection | Ungrounded Wye Grounded Wye Delta Single-Phase |
| Bank configuration | Single Wye Double Wye "H" Bridge Differential |
Download Links
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This brochure outlines Eaton’s Cooper Power series broad commercial and industrial medium-voltage transformer, switchgear, fuse, sectionalizer, switch, regulator, tool, OEM equipment, cable accessory, lightning arrester, power capacitor and recloser offerings.(PDF 5 MB, 01/05/2017)
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This brochure outlines Eaton’s Greenwood, SC, Emerald Road facility continued environmental commitment.(PDF 395 KB, 11/02/2020)
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This brochure describes Eaton's comprehensive capacitor unit recycling program which includes onsite material pickup and supports all units regardless of age, original manufacturer or current condition.(PDF 405 KB, 17/04/2020)
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This brochure describes what's inside an Eaton Cooper Power series power capacitor, what you need to know when selecting a power capacitor and the anatomy of a power capacitor.(PDF 942 KB, 31/07/2020)
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This catalog describes Eaton’s Cooper Power series capacitor block banks which can supply small or large Kvar requirements wherever the need exists(PDF 5 MB, 01/09/2015)
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This catalog describes Eaton's Cooper Power series bus-mounted expulsion type capacitor fuse which provides highly reliable, economical protection for capacitor banks where medium-energy-interrupting ability is required.(PDF 221 KB, 26/09/2019)
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This catalog describes the variety of Cooper Power series accessories that Eaton offers to increase the reliability and availability of power capacitor installations.(PDF 2 MB, 01/09/2015)
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This catalog describes Eaton's Cooper Power series fuseless capacitor banks featuring standard-duty (SD), heavy-duty (HD) and extreme-duty (XD) all-film capacitors.(PDF 351 KB, 01/08/2015)
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This document describes instructions for installing Eaton’s Cooper Power series expulsion fuses.(PDF 1 MB, 01/11/2016)
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This document describes instructions for installing Eaton’s Cooper Power series externally fused block banks.(PDF 965 KB, 01/11/2016)
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This document describes instructions for the installing Eaton’s Cooper Power series capacitor blocks on substation banks.(PDF 1 MB, 01/11/2016)
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This document describes the installation and maintenance instructions for Eaton’s Cooper Power series line of medium-voltage, single-phase capacitors.(PDF 626 KB, 30/11/2016)
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This is a CSI formatted construction guide specification for medium-voltage capacitors.(DOCX 290 KB, 04/06/2020)
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This form guides the user through ordering Eaton's Cooper Power series open air capacitor bank.(PDF 321 KB, 28/09/2018)
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This document provides formulas that provide an accepted analytic approach for estimating the transient currents expected during capacitor switching.(PDF 1 MB, 01/11/2016)
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This white paper describes manufacturing and design innovations incorporated within Eaton’s Cooper Power series power capacitor offerings including Standard-duty (SD type), Heavy-duty (HD type), Extreme-duty (XD type) and Internally fused units resulting in numerous performance, packaging and safety advantages.(PDF 951 KB, 09/04/2019)
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This white paper discusses how the optimal use of a capacitor bank in the energy distribution system was addressed with the aid of Eaton CYMDIST software.(PDF 687 KB, 24/11/2020)
Need product support?
Contact us
P: 877-277-4636
P: 877-ETN-CARE
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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 2020 revenues were $17.9 billion, and we sell products to customers in more than 175 countries.
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