Key Features

• Auto/manual or Local/Remote
• Cold Load Pickup
• Phase IOC detection
• Phase TOC detection

• Neutral TOC detection
• Over Voltage
• Under Voltage
• Voltage Unbalance

FDIR/FLISR

A key driver and measurement of utility effectiveness is in the reliability of power to its customers. As many faults on overhead distribution lines are transient in nature, reclosing at the substation and installation of mid-line reclosers./switches can improve a utilities SAIDI reliability index by up to 24%.

When permanent faults occur on overhead lines, having feeders with increasing degrees or automation can greatly enhance distribution grid reliability and reduce restoration of unfaulted segments from several hours to a few seconds or minutes. A key component of these automation schemes is intelligent controllers that can integrate with FDIR systems through sharing local information and accepting control commands.

Recloser Control

Robust Design

Based on GE's proven controller platform with tens of thousands of units installed globally, the Multilin DGCR undergoes extensive Accelerated Life Testing (ALT) and Highly Accelerated Life Testing (HALT) to validate accurate functionality under specified conditions and to ensure accurate performance in extreme operating conditions and harsh environments.

Modes of Operation

The Multilin DGCR Recloser controller provides two modes of operation:

• Remote mode
• Local mode

The Multilin DGCR recloser controller measures three phase voltages and currents, and based on the measurements, manages Auto-Recloser functionality:

Typical Application of Distribution Automation solutions

(Centralied Volt/VAR control (CVVC) & Fault Detection, Isolation & Restoration(FDIR))

Above depicts a simplified distribution network and two key distribution automation solutions driving grid optimization, efficiency and reliability

Key Features

• Multiple setpoint groups
• Expandable inputs and outputs for advanced applications
• Customized automation schemes using FlexLogic™

Automation & Control

The Multilin DGCR offers powerful I/O and programmable logic (FlexLogic™) options for advanced automation and control, reducing the need and costs associated with additional programmable controllers or discrete control devices.

Remote Control

For both operational efficiency and reliability reasons, the Multilin DGCR provides remote control for operating switchgear. The Multilin DGCR is capable of providing both local and manual control of the switchgear.

Set Point Group Control

The Multilin DGCR 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 DGCR provides 32 virtual inputs and 32 virtual outputs that provide users with the ability to send commands to the device. The Multilin DGCR can accept commands from SCADA, through the front HMI, or front USB port to issue commands such as close or open.

Command Setting

The Multilin DGCR has the ability to force commands from the menu structure. This can also be achieved via the EnerVista™ software that runs on a PC. This simulation ensures that the close and open commands can be safely issued from a distance without using the HMI.

FlexLogic™

FlexLogic in the Multilin DGCR provides the ability to create customized control schemes. This minimizes the need and costs associated with auxiliary components and wiring.

Key Features

• Metering - current, voltage, power, energy,frequency, PF, Harmonics
• Event Recorder - Up to 256 time tagged events
• Statistics & counters
• Enhanced system diagnostics & reporting

Metering & Monitoring

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

• Phase-Ground Voltages (kV)
• Phase to phase Voltages (kV)
• Positive, Negative, Zero Sequence Voltage
• Phase A, B, and C currents (A)
• Positive, Negative, Zero Sequence Current Ground Current (A)

• 3-Phase Active power (KW)
• 3-Phase Reactive power (KVar)
• 3-Phase Apparent Power
• Power Factor (Lag or Lead)
• Pos. & Neg. (Import & Export) Real Energy (kWh)

• Pos. & Neg. (Import & Export) Reactive Energy (kVarh)
• 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

These data points can be easily integrated into a customer's database for seamless viewing through a SCADA or DMS system like GE's PowerOn or GeNe.

Statistics & Counters

• Trip Counter
• Open Counter
• Close Counter

• KI²t Phase A Counter
• KI²t Phase B Counter

• KI²t Phase C Counter
• Total Close/Open Operation

Maintenance Elements

The maintenance elements in the Multilin DGCR provides alarms to the system based on the maximum number of closing/opening executed commands per period of time and I²t measurements per feeder.

Event recorder

The Multilin DGCR provides an integrated event recorder and detailed diagnostic features. The sequence of events recorder offers the following features:

• Up to 256 consecutive events stored
• Enable or disable, operate and dropout events by set points
• Phase voltage/current and power metering shot is also included and stored at each event

Advanced Device Health Diagnostics

Comprehensive device health diagnostic tests are performed by the Multilin DGCR during startup and continuously at runtime to test its own major functions and critical hardware User Interface.

Key Features

Key Features

• 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.

Security

The DGCR and associated software tools provide a suite of security features that ensure only approved personnel can make changes to the device configuration or execute operational commands.

Password Security

The DGCR 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.

EnerVista™ Software

The EnerVista™ Suite is an industry-leading set of software programs that simplifies every aspect of using the DGCR Voltage Regulator Conroller. The EnerVista™ suite provides all the tools to monitor the status of the protected asset, maintain the controller, and integrate information measured by the DGCR 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