Capacitor Bank Controller - Legacy

• Star Neutral Overcurrent (Blown Fuse Indication)
• Customized automation schemes using FlexLogic™
• Expandable inputs and outputs for advanced applications

Reverse Power Detection

The Multilin Capacitor Bank Controller includes a Reverse Power Detection function, which defines the minimum pickup required to detect reverse power conditions.

Neutral Overcurrent Protection (Blown Fuse Condition)

In situations where the capacitor bank has been tripped due to a neutral current unbalance situation, the Multilin Capacitor Bank Controller will execute a reclose action to validate the state of the fault, ensuring the fault was not transient in nature. This automatic reclose action ensures maximizes system reliability.

The Multilin Capacitor Bank Controller offers powerful I/O and programmable FlexLogic™ options for advanced automation control, reducing the need for additional programmable controllers or discrete control relays. The Multilin Capacitor Bank Controller has three identical set point groups. The activation of the group can be done either from the HMI or via a Digital Input.

Set point group control

The Multilin Capacitor Bank Controller has three identical set point groups. The activation of the group can be done either from the HMI or via a Digital Input.

Virtual Inputs and Outputs 

The Multilin Capacitor Bank Controller provides 32 virtual inputs and 32 virtual outputs that provide users the ability to send commands to the device. The Multilin Capacitor Bank Controller can accept commands from SCADA, through the front HMI, or front USB port to issue commands such as Open or Close.

Command Setting 

The Multilin Capacitor Bank Controller has the ability to force commands from the menu structure accessible through the Multilin EnerVista setup software that runs on a PC.

FlexLogic™ 

Advanced FlexLogic in the Multilin Capacitor Bank Controller provides the ability to create customized control schemes. This minimizes the need for auxiliary components and wiring, thus reducing complexity and costs.

• Metering - current, voltage, power, frequency, PF, Harmonics
• Event Recorder - Up to 256 time tagged events
• Temperature via RTD inputs
• Enhanced system diagnostics & reporting

The Multilin Capacitor Bank Controller provides high accuracy metering and recording of AC signals, measuring the following key parameters:

• Phase-Ground Voltage (kV)
• Phase-to-Phase Voltage (kV)
• Line Voltage (kV)
• A, B, and C Phase Currents (A)
• Line Current (A)
• Ground Current (A)
• 3-Phase Active Power (kW)
• 3-Phase Reactive Power (kVAR)
• 3-Phase Apparent Power
• Delta Reactive Power (KVAR)
• Power Factor (Lag or Lead)
• 2nd to 8th harmonic up to 20% – for current
• 2nd to 8th harmonic up to 20% – for voltage
• THD in 20% – for current
• THD in 20% – for voltage
• Temperature [ ºC ]

These data points can be easily integrated into a customer’s database for seamless viewing through a SCADA or DMS system.
The Multilin Capacitor Bank Controller has the ability to monitor the following setpoints / conditions and issue an alarm if measured values fall outside of specified limits:

• Minimum voltage limit
• Bank switch failed
• Switching alarm (Reverse Power)
• Total close counter reached
• Max Daily operation counter reached
• Minimum VAR Delta (variation)
• Minimum Volt. Delta (variation)
• Neutral overcurrent

Event recorder

To significantly reduce time and enable more effective disturbance, post fault analysis and troubleshooting, the Multilin Capacitor Bank Controller provides an integrated event recorder and detailed diagnostic features.

Data Management and Diagnostics

The Multilin Capacitor Bank Controller provides advanced disturbance diagnostic features that significantly reduce the time and costs associated with troubleshooting power system events and reconstruction. Recording functions include enhanced diagnostics with a 10 channel RMS recorder Data Logger.

Statistics & Counters

The Multilin Capacitor Bank Controller provides counters which records key operational parameters to aid in enabling preventative maintenance programs. The Multilin Capacitor Bank Controller includes many counters & statistical values.

Advanced Device Health Diagnostics

Comprehensive device health diagnostic tests are performed by the Multilin Capacitor Bank Controller during startup and continuously at runtime to test its own major functions and critical hardware. These diagnostic tests monitor for conditions that could impact the Multilin Capacitor Bank Controller’s performance, evaluates the potential impact and criticality of this condition and presents the device status to operators, via SCADA and/or through the front panel display.

The Multilin Capacitor Bank Controller utilizes industry standard, communications technologies making it one of easiest and most flexible controllers to use and integrate into new and existing SCADA or DMS infrastructures. Supported communication protocols include:

• DNP 3.0
• Modbus RTU (RS485)

Multiple communication ports and protocols allow for remote control and easy access to device and system information. All communication ports are capable of simultaneous communications. The Multilin Capacitor Bank Controller can also communicate to Volt/VAR or SCADA systems via wireless communications media. The supported wireless media includes:

• Wireless Radio (MDS or customer specific)
• GSM/GPRS
• Pre-wired for future radio

Front Penel quick keys provides direct access to key individual setting parameters

4-Level device security to maintain authorized access only

Simplified device configuration software tool and industry leading suite of software tools to manage and maintain Multilin devices.

The Multilin Capacitor Bank Controller and associated software tools provide a suite of security features that ensure only approved personnel can make changes to the configuration of the system or execute commands. These functions enable a utility to meet NERC/CIP requirements.

Password Security

The Multilin Capacitor Bank Controller offers multiple levels of password security to limit access control based on settings or command levels. There are four levels of password security provided:

• Local Settings Access
• Local Control Access
• Remote Settings Access
• Remote Control Access

Local Access refers to users making changes using the front USB serial port and the HMI. Remote Access refers to users making changes using the rear RS485 port. 

The EnerVista™ Suite is an industry-leading set of software programs that simplifies every aspect of using the Multilin Capacitor Bank Controller The EnerVista™ suite provides all the tools to monitor the status of the protected asset, maintain the controller, and integrate information measured by the DGCC into SCADA or the DMS monitoring systems. The ability to easily view sequence of events is an integral part of the setup software, as postmortem event analysis is critical to proper system operation. 
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