Centralized Capacitor Control

Utilities have long understood the value of applying capacitors for voltage support and VAR management to reduce losses and release system capacity. The challenge has been cost-effective control of capacitor banks to match daily and seasonal requirements. Control has traditionally taken place at the bank using time, temperature, VAR, or voltage controllers. These tended to be inefficient and unreliable, providing no indication of proper operation. Intelligent, programmable devices evolved, but tended to be expensive, while still not optimizing power factor on a system-wide basis, and requiring highly technical on-site maintenance for every adjustment.

Virtual Verification with VAR Feedback

Our approach combines an inexpensive controller with centralized intelligence based on Power Factor feedback. The result is optimum power factor for all feeders, during all load conditions, with the lowest over-all system cost.

Modern communication technologies are the key ingredient. One-way communication uses feeder VAR monitoring to confirm operation for each bank. Two-way communication is used where downline voltage and neutral current levels are important. Our CBC series controllers even work nicely without remote communications, providing local control based on configurable Over-voltage/Under-voltage override thresholds.

Any Load or Weather Conditions

Centralized capacitor control allows more sophisticated and flexible control strategies to be implemented at the Yukon® Master Station without visiting every controlled capacitor bank, and alerts operations of failed banks via email. The browser-based viewer allows planners and engineers to monitor system performance without interrupting the operations group. Our customers tell us that intelligent, centralized capacitor control improves the bottom line with a rapid ROI.

Register to learn more about Centralized Capacitor Control hardware, software and value-proposition analyses.

CBC 5000 Series Features		Utility Benefits
900 MHz FLEX® Paging Communications Redundant paging providers Convenient socket-mount Polycarbonate case, remote/local toggles, trip/close toggles with settable delays, settable over-voltage, under-voltage overrides, indicator LEDs visible without opening case Infrared PDA Service Unit Port Optional mechanical counter When integrated to SCADA/EMS or Esubstation™, Yukon® software includes algorithms to flag & report banks that do not appear to function properly Group or individual control		Improve power factor with low cost remote control, free-up wasted capacity, reduce losses, improve voltage quality Nationwide FLEX Paging communications network is already in place and ready to use at a very low cost, high reliability Each unit is programmed with two paging service providers for true redundant communications Over-the-air programming of individual units or groups of units Yukon® Remote Power Factor Control software flags possible malfunctioning banks, optimizing capacitance, preventing addition of unneeded banks

CBC 7000 Series Features		Utility Benefits
Modular design allows you to choose the type of communica tion and packaging and the CBC can be   configured to meet your needs. Neutral-sensing circuits Local or Remote Trip and Close using two 120 VAC 30-Ampere relays for capacitor switch control Locally and remotely settable overvoltage and undervoltage points for Trip and Close LCD display provides status, configuration, and diagnostics Convenient surface mount or socket-mount configurations		Add the flexibility of two-way communications Remotely reconfigure voltage setpoints Be alerted about lost neutrals Easy and reliable communication paths Check bank operation status Check bank position status

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