The Multilin DGCM provides high accuracy metering and recording of all AC signals, measuring the following key parameters:

Basic Measurements

• Current: Ia, Ib, Ic, In
• Phase-to-phase and phase-to-ground voltages for bus and line: Van, Vbn, Vcn, Vbb, Vab, Vbc, Vca
• Active power (per-phase and total): Wa, Wb, Wc, W
• Reactive power (per-phase and total): VARa, VARb, VARc, VAR
• Total active, reactive and apparent energy: MWh, MVARh, MVAh
• Power factor (per-phase and total)
• Frequency 

Power Quality Measurements

• Voltage sag/swell
• Current unbalance
• Demand: voltage, current, active power, apparent power, energy, temperature
• 2nd to 15th harmonic for current
• 2nd to 15th harmonic for voltage
• THD in 20% for current
• THD in 20% for voltage

Event Recorder

To enable more effective distribution, post fault analysis and troubleshooting, the Multilin DGCM provides an integrated event recorder and detailed diagnostic features. The event recorder offers:

• Storage for up to 1024 consecutive events

Trending and Data Logging

The Multilin DGCM provides a 200 channel RMS recorder for advanced disturbance diagnostic features.

The Multilin DGCM data logger helps in better understanding the analog channel behavior, by sampling at a selectable time interval rate of 1 to 60 minutes.

The Multilin DGCM utilizes industry standard communications technologies, making it one of easiest and flexible controllers to use and integrate into new and existing SCADA or DMS infrastructures.

Multiple Protocol Support

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.

Simultaneous industry standard protocols supported:

• DNP 3.0 – Serial and Ethernet
• Modbus Serial and Ethernet
• IEC 60870-5-104

Integrated Cellular

The Multilin DGCM’s integrated cellular modem eliminates the need for external wireless devices, which reduces infrastructure costs.

Several options for MDS™ radios when purchased with enclosure:

• MDS iNET-II
• MDS TransNet

Software and Configuration

The EnerVista Suite is an industry-leading set of software programs that simplifies every aspect of using the Multilin DGCM. EnerVista provides the tools to monitor the status of the protected asset, maintain the controller and integrate information measured by the Multilin DGCM into SCADA or DMS monitoring systems.

EnerVista Launchpad

EnerVista Launchpad is a powerful software package that provides users with of the setup and support tools needed for configuring and maintaining GE Vernova’s Multilin products. The setup software within Launchpad allows the configuration of devices in real-time, by communicating via serial, Ethernet or modem connections, or offline, by creating device setting files to be sent to devices at a later time.

• 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. 
Learn More

The DDFR Archiving System will automatically copy all data stored in DDFR’s located throughout a companies wide area network into a centralized network location allowing users to analyze fault and disturbance data without having to be at the same location as the DDFR. This DDFR Archiving System that runs on coma network PC or Server can retrieve data from multiple DDFR’s thereby creating a permanent enterprise wide library of all past disturbances on your power system. The information collected by the DDFR Archiving System will be categorized in separate directories for each DDFR, making it easy for users to identify data about faults and disturbances related to each individual substation.

Users can analyze sequence of Event Records, Transient Fault Records, and Disturbance Records that have been stored on a DDFR or archived onto a network location by the DDFR Archiving System by using the EnerVista DDFR Setup Software. The DDFR Setup Software’s Event Record viewer and COMTRADE viewer can access archived records to provide local or remote analysis capability to anyone with access to network storage location.

The EnerVista™ DDFR Setup Software contains a Sequence of Event viewer that allows for easy analysis of the Events stored in the DDFR or archived to the network location. Each recorded event will contain detailed information including:

• Timestamp of Event
• Description of the Event
• Name of Substation
• Name of Source Relay
• Model of the Source Relay

The Sequence of Event viewer provides the ability to sort the recorded events by any of the available fields of information or to perform queries to show only the events that are necessary for troubleshooting a particular fault.

The COMTRADE viewer that is included with the EnerVista DDFR Setup Software provides the ability of analyzing the Transient Fault Records and Disturbance Records that have been archived by the DDFR. This full featured COMTRADE viewer allows for analyzing records in a standard time based format that shows the magnitude of all measured quantities, or in Phasor diagram view that shows the magnitude and angle differences between any of the parameters. The COMTRADE viewer can also perform a harmonic analysis on all measured Phasor quantities and display the harmonic content for every point in the record up to the 25th harmonic.

When used with advanced microprocessor based relays such as the UR family, the DDFR System meets or exceeds requirements of International Standards for Digital Fault Recording.

• Continuous monitoring of AC input channels
• Metering - current, voltage, frequency, power, energy and synchrophasors as per IEEE C37.118
• Transient recorder - 128 samples/cycle, 1 minute or more of storage capacity
• Disturbance recorder – 1 sample/cycle, 5 minutes or more of storage capacity
• Event recorder - 8000 time tagged events, with 0.5 ms scan of digital inputs
• Comprehensive display of metering, phasors, maintenance and fault information via the front panel

Monitoring & Diagnostics

The D90^Plus includes detailed metering and recording for all AC signals. Voltage, current, and power metering are built into the relay as a standard feature. Current and voltage parameters are available as total RMS magnitude, and as fundamental frequency magnitude and angle.

The D90^Plus incorporates advanced automation features including powerful FlexLogic™ (user programmable logic) independent for protection and automation schemes. Combined with the communication capabilities, the D90^Plus provides an advanced, highly flexible platform for substation automation applications. The D90^Plus integrates seamlessly with other relays for distributed applications like interlocking and special protection schemes.

• Multiple protocols - IEC 61850, DNP 3.0 Level 2, Modbus RTU, Modbus TCP/IP, IEC 60870-5-104
• Up to three independent IP addresses
• Increase network availability by reducing failover time to zero through IEC62439-3 "PRP" support
• Front USB port for high-speed communications

Advanced Communications

The D90^Plus provides for secure remote data and engineering access, making it easy and flexible to use and integrate into new and existing infrastructures. Fiber optic Ethernet provides high-bandwidth communications allowing for low-latency controls and high-speed file transfers of relay fault and event record information. The availability of three independently configurable Ethernet options provide the means to create fault tolerant communication architectures in an easy, cost-effective manner. The D90^Plus supports the most popular industry standard protocols enabling easy, direct integration into SCADA systems.

• IEC 61850
• DNP 3.0
• Ethernet Global Data (EGD)
• IEC 60870-5-104
• Modbus RTU, Modbus TCP/IP
• PRP as per IEC 62439-3

The EnerVista™ suite is an industry-leading set of software programs that simplifies every aspect of using the D90^Plus relay. The EnerVista™ suite provides all the tools to monitor the status of the protected asset, maintain the relay, and integrate information measured by the D90^Plus into DCS or SCADA monitoring systems. Convenient COMTRADE and Sequence of Events viewers are an integral part of the UR setup software included with every UR relay, to carry out postmortem event analysis and ensure proper protection system operation. Learn More

Access Control

Multilin devices and relays are designed with simple but powerful security to enable reliability and compliance for virtually any project or implementation. With support for multi-level permissions and multi-factor supervisory controls, Multilin devices can help you manage the integrity of your system during commissioning, testing, implementation, and beyond. The UR and UR^Plus families provide separate authentication for settings and commands to the system. In addition, as discrete authentications for local and remote access, they also provide a supervisory control factor that can lock or unlock a device for configuration changes and other modifications.

Intrusion Detection

Multilin’s family of protection and control products can also help enable your security perimeter and intrusion detection programs. By providing essential alarming and logging of critical events, Multilin devices can help you detect potential breaches within your system and allow you to respond quickly and effectively. Specifically, unsuccessful access attempts are logged, alarmed, and lead to potential attackers being locked out. This ensures the reliability of your system during questionable activity, and a control factor that can lock or unlock a device for configuration changes and other modifications.