Distribution Automation

Maximizing grid efficiency and reliability
Distribution Automation (DA) is a solution that enables an electric utility to remotely monitor, control and regulate its distribution assets and networks.  DA optimizes the flow of electricity from the utility to consumers, and ensure that the service is delivered efficiently and reliably.
Most utilities have long wished for real-time monitoring and remote control of system & assets such as substations, voltage regulators, capacitor banks, feeder switches, distribution transformers, and other physical facilities.  DA systems enable the ability to monitor and control assets, identify and isolate faults, restore service, and increase distribution network efficiency (VVC) and reliability (FDIR/FLISR).

Advanced visualization technologies enable the efficient recovery of distribution systems utilizing fault isolation, sectionalization and power system restoration capacities within our wide range of distribution assets, controllers, and high accuracy measurement devices. Our high speed wireless capability provides peer-to-peer communications, enabling distribution utilities to make intelligent decisions, enabling fast and efficient responses to service interruptions.

Advanced Distribution Management System
Distribution Management Systems
Outage Management Systems
Energy Management Systems
Demand Response Management Systems
Geospatial Solutions
Substation Based FDIR/FLISR

Feeder Protection
Gateways
RTUs
Automation Systems
Substation Projects

Power Transformers
Distribution Transformers
Voltage Regulators
Capacitors
Stack Rack & Pole Top Equipment

Voltage Regulator Controller
Capacitor Bank Controller
Multilin DGCM Field RTU
Power Line Monitoring
Switch Controller
Recloser Controller

Wireless Data Acquisition
Wireless LAN Extension
Wireless Backhaul
Ethernet Switches
Monitoring and Fault Detection - Enhances Distribution Grid reliability
Most distribution utilities around the world have a minimal or no monitoring on the main or lateral feeders. Early warning for over-current and earth fault detections as well as downstream faults and outages will improve information handling. Efficient fault detection will greatly enhance distribution grid reliability, reducing restoration time drastically from several hours to a few seconds or minutes. Distribution reliability indices of CAIDI, SAIFI, SAIDI, etc. and service quality performances are thereby greatly enhanced. The figure below demonstrates how monitoring data on a distribution network can reduce the fault location time from 1 to 3 hours to just a couple of minutes. Monitoring enables the utility to save on lost man-hours as well as lost revenue, improving their performances, reliability and profitability.

Fault detection, isolation and restoration - Driving maximized grid reliability

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 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.
 

 



Utilities face a difficult challenge having to dynamically balance the load scenario between customer demands and available generation capacity. Adding to the challenge is the ever changing consumption patterns due to factors such as day of the week, time of day, season, temperature and Power Factor from connected loads.

Maintaining an efficient and reliable distribution network is critical to a utility’s operation. Meeting this challenge requires voltage regulator controller and capacitor bank controllers working in unison.
These devices can operate as part of an integrated Volt/VAR Control (IVVC) scheme or as a Centralized Volt/VAR control (CVVC) system.

The IVVC or CVVC system works to achieve two key objectives:

Optimize Voltage - through ‘Conservation of Voltage’ that leads to reduced demand, that may result in decreased generation up to 6%.

Increased efficiency - through improved power factor and reduced VAR which helps to reduce power line losses.





There are a number of approaches used by the industry to deliver dynamic line rating:
  • Distributed weather and substation load data approach: monitors the influences that impact the conductor temperature, such as weather and load, and couples these with the static factors such as conductor size and type
  • Distributed load and conductor temperature approach: measures the temperature and load of the conductor directly on the conductor distributed throughout the circuit
  • Hybrid approach: uses a combination of distributed weather, load and conductor temperature data
The combination of using distributed weather data, load and conductor temperature is a cost effective and comprehensive way to deliver dynamic line rating. It enables the rating algorithms to become dynamic in their own right, as the conductor temperature measurement provides the potential for a calibration input to the algorithm to correct the thermal changes to the static values of the conductor over time, and uses the weather data to facilitate short term forecasting of rating. The conductor temperature input also delivers further value, as it delivers a line sag/clearance application.


 
  • Identifies additional capacity that can safely pass through the line
  • Determines incremental line sag and clearance from the line to the ground
  • Incorporates effect of cooling from wind and terrain on different parts of the line




Enhanced line monitoring systems capture and analyze data from multiple distributed locations, and notify and display this information to system operators and field crews. The information allows operators to make timely decisions and arms field crews with the information they need to quickly find and fix the faulted feeder. This enhances the overall efficiency and reliability of overhead line power systems.

 
  • Determines which segment of the line the fault occurred in
  • Directly notifies Field Crews of where to travel to fix faulted circuits
  • Tracks overcurrent events to enable Optimized Maintenance Scheduling



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Distribution Automation Controllers
Voltage Regulator Controller
Substation Based FDIR / FLISR
Capacitor Bank Controller
Capacitor Bank Controller
Field RTU
Field RTU
GE’s Multilin distribution automation controllers enable utilities to optimize voltage levels, reduce power losses and minimize outage duration. Deployed as part of a fault detection, isolation and restoration solutions (FDIR) and voltage and VAR control solutions (VVC), Multilin distribution automation controllers provide utilities with advanced technology to optimize grid efficiency. Learn more about our Distribution Automation Controllers
Line Monitoring System
The Multilin Intelligent Line Monitoring System is an end-to-end overhead line monitoring solution with advanced analytics that provides actionable intelligence to distribution utilities for improving the reliability and efficiency of their networks.
Outage Management Systems
GE Outage Management Systems (OMS) helps utilities manage the impact of outages by reducing the time and resources necessary to deal with service interruptions, thereby improving service reliability and increasing customer satisfaction.
Advanced Distribution Management Systems
The PowerOn Fusion Advanced DMS (ADMS) enables distribution utilities to deliver higher reliability, customer service and reduced operating costs while maintaining workforce safety and addressing major evolving technology challenges.
Feeder Protection Systems
Multilin™ Distribution Feeder Protection Systems provide advanced protection, powerful programmable logic, integrated communications support, and accurate system monitoring for applications including the protection of high-end feeders, MV feeders, reclosers, and LV feeders and MCCs.
 
Weather StationT-NETFMC-T6SNGFMC-T6Weather Station FMC-T6 T-NET Weather Station T4T-NETSNGSNG SNG T-NET T4