GE Multilin™ D20/D200 Substation Controllers

GE Multilin™ D20/D200 Substation Controllers

DESCRIPTION

The Multilin D20/D200 Substation Controllers offer an industry leading design embedded with  high value substation automation applications that provide cost savings, increased reliability, and  improved operational efficiencies in electric power substations. The ability to support a wide range  of communication protocols and applications, allows the D20 to be interoperable with a broad range  of intelligent electronic slave and master devices. The D20 can execute simple to complex local logic,  compile and process data [collect and convert] and reports upstream to master stations. The D20’s  distributed, expandable I/O architecture and mission-critical automation control applications reinforce  why the D20 controller is being used in over 40,000 installations around the world.

Key Benefits

In a mission-critical substation-hardened package, the D20/D200 provides:

• Substation client and server functionalities by maintaining a distributed architecture for gathering  and controlling data on substation equipment while sending data to master stations via serial RS-232,  RS-485, fibre optic or Ethernet interfaces for point to point, multi-drop and remote connections. 

• Support for a broad range of SCADA host protocols, IED protocols, Communication options, Input/output  (I/O) peripheral modules, and operation and maintenance utilities substation automation applications.  Refer to the hardware manual and see the appendix section of this document for more details.

Applications

Functionalities such as data concentrator, protocol converter or a local automation platform to  implement popular distribution automation applications such as capacitor bank control, outage  prevention programs, feeder resource optimization and control interlocking inhibition and subgrouping.  Functionalities such as data concentrator, protocol converter or a local automation platform to  implement popular distribution automation applications such as capacitor bank control, outage  prevention programs, feeder resource optimization and control interlocking inhibition and subgrouping.

• Data Concentrator  Automatically consolidates collected information from intelligent electrical devices (IEDs), such as  relays and meters, and communicates to SCADA, EMS, DMS and Data Historian systems 

• Protocol Converter  Translates different data message formats between devices to support interoperability  

• Local Automation Platform  Implements popular distribution automation applications such as capacitor bank control, outage  prevention programs, feeder resource optimization and control interlocking, inhibition and subgrouping

Substation Controller Connectivity

The D20/D200 can support a wide range of substation automation communication protocols and enhanced SCADA applications. See Appendix B for a list  of supported protocols for both client and server devices. The following summarizes some of the different data translation applications that are equipped  in the D20/D200.

Communication Services Applications:

• Communication Watchdog: Monitors and report the health of  communications 

• Substation Maintenance: Suppresses SCADA point reporting during  substation maintenance 

• Virtual Terminal: Directs remote access to connected devices • Line Switch: Monitors main and secondary communication channels and  retransmits on a third channel 

• LAN Services: TFTP, SPT Server/Client, Time Server/Client 

• COM Statistics: Records a detailed communication pass/fail statistics 

• IRIG B Source: Time sync connected devices using IRIG-B 

• SNTP Client: Time sync over an Ethernet LAN  

Generation, Transmission, and Feeder Bay Automation  Applications: 

• Automatic Voltage Control module: Maintains steady voltage base on  user-defined targets and settings 

• Local / Remote Data Translation module: A master local/remote switch to  control the local/remote state of distributed devices 

• Secondary Master Trip/Close module: Enables the use of individual relays  (with external terminations) as master trip/close relays 

• Set-point Adjustment module: Adjust set points based on control request  durations or analog input values 

• Tap Position Indication module: Translates status points into scaled  analog input values to reflect transformer tap positions