Auto and/or manual step size
configuration
Discharge timer on each step
Selectable operating modes
Alarms
Powermonitor data concentrated into the
MicroLogix 1500 controller and displayed
with an optional HMI
Phase current, line voltage, frequency, real
and reactive power, power factor and THD
Manual operation
Linear, last-in, first-out
Balanced, distribute usage of capacitor
steps
Best Fit, finds best match of capacitor
step size to system kVAR needs
Special, customer-defined
%THD, linear mode with a voltage %THD setpoint
Bad step, indicates blown fuse, capacitor failure
Target power factor not achieved
High / Low voltage
%THD High
Current unbalance
The Allen-Bradley Capacitor Bank Controller is a pre-engineered PLC-based solution designed for various capacitor bank control applications. The solution combines standard, off-the-shelf, Allen-Bradley hardware with application ladder code necessary to perform power factor correction in one single package.
In addition, the Capacitor Bank Controller allows the user to add additional code and functions to address application specific needs. This makes the Allen-Bradley Controller unique in its flexibility and adaptability compared with other standard, fixed-function capacitor control products available in the market today.
Start using this powerful, affordable, and easy to use solution to reduce power factor penalties, kW demand charges, and release kVA loading.
DESCRIPTION
The Capacitor Bank Control system consists of a MicroLogix 1500 controller, one or more Powermonitor 3000s, a standard Data Access Terminal (DAT) that is mounted on the MicroLogix 1500 controller, and an optional Human-Machine Interface (HMI).
Pre-engineered ladder logic code in the controller gathers real and reactive power data from up to four power feeds including utility feeds and/or generators.
The logic operates on the data in standard engineering units of kVAR & kW and acts to minimize imported and exported reactive power by switching up to ten
individually switched capacitor groups. This strategy controls power factor within specified limits while providing the flexibility to modify the system to meet the specific requirements of the application.
BENEFITS
- Basic and advanced control of capacitor banks to reduce power factor penalties and kVA demand charges.
- Ability to monitor and control Vars to multiple feeders.
- Advanced Var control modes for precise power factor control.
- Simple addition of I/O for additional steps and functionality (ex: alarming).
- Can use up to (4) Current Transformer and Potential Transformer inputs per circuit for better Var control of unbalanced systems or 1 CT & 1 PT for balanced systems.
- Local and remote communications capabilities for programming, viewing, sending information and alarming for real time electrical system status.
- Easy to configure and view through an optional display module.
- Full functioning real time power & energy monitoring (Hundreds of parameters captured, logged, and available within the Powermonitor for taking action and/or passing to other systems displayed locally and/or remotely).
- Open system architectures utilizing the familiarity with PLCs and standard off the shelf hardware.
- Seamless integration into Rockwell Automation and 3rd party HMI and SCADA systems.
OPTIONS
- Up to three additional Powermonitors to aggregate up to four total feeds.
- PanelView 550 keypad HMI terminal with serial or EtherNet/IP communications.
- Ethernet power monitors to power and energy data to your local
area network.