Substation Automation

Substation Automation
By: BCCambalon Its a picture of a Substation Located in the central part of Mindanao Equip with MBSC System or Substation Automation System, Its the 2nd largest substation of NGCP with 10-bays, The MBSC was commissioned last September 2009. BCC

Mapping of Data-points for SCADA RCC & ACC according to CMC Point – to- Point Testing M The MBSC System Architecture Redundant Hardware configuration , Server, LAN, Gateway etc We conducted the Test and Commissioning of the MBSC System with AREVA Engr., Engineering works; configuration and mappings of data points for the RCC according to the CMC Conducted Simulation of SCADA Functionality. Check the IP address of each Servers, Workstations, IEDs, Integration to SCADA Control Centers MRCC and DACC, Point to point testing, Circuit breaker control commands issued RCC-(Iligan). By -passed interlocking It was a great experience being part of the commissioning team were in we do test of the MBSC system and sometime RE-DO the test to satisfy the team. However, the training of the MBSC system was not long but its a big difference in the real world. BCC

OS- Windows XP, Client Server Database- MS SQL SA - SCADA Software Editor- System Configuration Editor (SCE) Substation Maintenance Tools (SMT) BCU –Conformance with IEC 61850 Intelligent Electronic Device (IED) Meter – Modbus Protocol IED Protection Relay – IEC Protocol RCC/ACC Gateway remote SCADA link – DNP 3.0 Protocol We will take this later BCC

Topic Outline Introduction Substation Functions Trends in Technology
Substation Automation Topic Outline Introduction Substation Functions Trends in Technology IEC Architecture and Protocols Typical Substation Automation System Bay Control Unit (BCU) LN Functional Architecture Substation Configuration Language (SCL) BCC

EQUIPMENT LAYERS Gateway Server Workstation s (UI) STATION BCUs IEDs Relay Protections Electronic Meters BAY PROCESS Circuit Breakers Disconnects Transformers BCC

IEC 61850 - Substation Automation
Introduction Substation Automation (SA) is a system to enable an electric utility to remotely monitor, control and coordinate the distribution components installed in the substation. High speed microprocessor based Remote Terminals Units (RTUs) or Intelligent Electronic Devices (IEDs) are used for substation automation and protection. Intelligent Electronic Devices, is not “ Improvised Explosive Devices”, Microprocessor-Based Substation Control (MBSC) These IEDs are installed in strategic locations for collection of system data and automatic protection of substation equipment. BCC

Data communication between the control centre and IEDs in remote locations and among the IEDs becomes an important issue to realize the substation automation functions. Various protocols are used for tele-control purpose, but none of them fully support the interoperability among IEDs supplied by different vendors in the substation. These protocols are Modbus, Modbus Plus, DNP 3.0, and IEC Electric Power utilities are facing problem of INTEROPERABILITY among IED supplied by different companies, universal standard to eliminate the problem of interoperability. BCC

Substation Functions Types of Substation Automation System
Interface to the switch yard equipment Control and monitoring of the switch yard eqpt. Alarms and Recording Protection of the power equipment Revenue metering Automation functions Types of Substation Automation System Load shedding, Voltage regulation, Auto - recloser OLTC tap changer, Capacitor bank, Reactor, etc. Microprocessor-Based Substation control (MBSC) SA System, IEC61850 Protocols RTU- Based SA System, Legacy Protocols BCC

Basic Substation Automation System
Basic Model of the Substation Automation System Data points: DI, DO, AO, AI/MV Digital Input for the position of the CB, Ds CT & VT for Merging Unit, Analog data but converted digital A/D– 12, 16 and 32bit resolution. Hardware devices, LAN Server/Workstation, IED’s Software for monitoring, control, real time display and alarms. BCC

Typical Conventional Substation
Substation Automation Typical Conventional Substation /Mimic Most of our substations are conventional type Remote Terminal Unit (RTU) however, the RTU is being added and placed in the conventional substation To monitor the parameters of the substation in the RCC for supervision and management of the grid and process by the SCADA functions. Its a TERMINAL UNIT place in remote location, and the Function is a Data Acquisition Unit, no complex processing, and Mainly Master-Slave, get data from the fields devices store in the buffer/memory and wait until the RCC polled these data in regular intervals. BCC

ACC Substation HMI RCC DNP 3.0 Protocol HMI Workstation PORTS Software RCC RTU is a Master – Slave message exchange Polling of data by the Master a specified interval, sometime confirmation is needed in the message exchange DNP Protocols However the Baud rate: 1200 to Kbps, limited bandwidth, and only selected data are map to the ACC. Microwave communication link for the RCC/ACC , Control Centers are MASTER – RTU ports are logical SLAVES maps for Control Centers However, serial data connection, but physical wire distance May require a RS232 to RS485 or FO converter for longer distance from the RTU to the HMI Local Remote switch is installed part of the automation system where in the RCC can not issue a command to the substation is the LR switch is in Local Mode. BCC

INPUT-OUTPUT (DATA POINTS): DI, DO, AI
Substation Automation RTU-Based SA ACC DNP 3.0 Protocol RCC PORTS Software IEC Modbus INPUT-OUTPUT (DATA POINTS): DI, DO, AI IED’s Internal data from the IED , another RTU Ports for IED’s: connected/polled from the other PORTS of the RTU Meter A/D (16-Bit BCD) Serial connection RS485, Protocol – IEC , Modbus RTU Baud Rate 1200 to Kbps (Master /Slave) However, RTU to Meter/Relay , the RTU is the MASTER and the meters and relays are the SLAVE Integrated in the SCADA Software for CONTROL and Monitoring , real-time display, alarm display, trending etc. IED, Meter, Modbus Protocol, 16/32 bit resolution Protection Relay, IEC More IED can be connected in daisy chain RS485 configuration Physically wire DI, DO, AI DI,DO, AI BCC

INPUT-OUTPUT (DATA POINTS): DI, DO, AI Position/ Status of Switchgears
Substation Automation RTU-Based SA RTU LOGIC CB NC NO STATUS RT Display 0000 IN-TRANSIT 0001 OPEN CLOSE Digital Input (DI) Opto Coupler, Fast Acting Relay Software INPUT-OUTPUT (DATA POINTS): DI, DO, AI IED’s DI, Digital Input - Optically isolated (interfacing Fast Acting Relay) 1KV, To Isolate the high voltage Electrical system induction Electrical Signal to Optical and back to Electrical signal Double Point Status (DPS) Pair points (NC & NO), standard for reliability Similar to ... The door is close , to confirm the door is not open DI, Double Point Status NO NC 0000 0001 Position/ Status of Switchgears BCC

INPUT-OUTPUT (DATA POINTS): DI, DO, AI Close /Trip for Switchgears
Substation Automation RTU-Based SA Digital Output (DO) RTU Host Slave Master Opto Coupler, Fast Acting Relay sel DO Card t SBO Command DNP 3.0 resp Software opr RCC INPUT-OUTPUT (DATA POINTS): DI, DO, AI DO, 6Amps, contact Form C relay output (SPDT)., SBO, DO SBO Command Send select address Response the selected address Operate Trip/Close If time is elapse the control command will be aborted. You may re-do the process DI DO Close /Trip for Switchgears BCC

INPUT-OUTPUT (DATA POINTS): DI, DO, AI Close /Trip for Switchgears
Substation Automation RTU-Based SA Analog Input (AI) Opto Coupler, Fast Acting Relay SBO Command DO Card AI Card DNP 3.0 Software RCC INPUT-OUTPUT (DATA POINTS): DI, DO, AI AI i i T P Analog Inputs Uses transducer to convert Temp/ Pressure to mA, instrumentation and control standard signal. AI, 16-bit resolution, 4-20 ma, +-1 ma, +-1V, +-5V Scaling of the RAW digital data to Engineering Value DI 4 to 20 mA, 0 to 1 mA, (12 to 16 –Bit BCD) DO Temperature Pressure Close /Trip for Switchgears BCC

SA RTU-Based Legacy Protocols
Substation Automation SA RTU-Based Legacy Protocols RCC ACC RTU DNP 3 SCADA Software INPUT-OUTPUT (DATA POINTS): DI, DO, AI IED’s : 103, Modbus AI, Analog Inputs SA RTU-Based legacy protocols Master- Slave Architecture exchange of messages RCC to RTU – DNP 3.0 protocol RTU to IED – 103 and Modbus protocols Mapping of Ports according to CMC Transducers : Temperature, Pressure, etc DI DO BCC

Components of the RTU-Based SAS
Substation Automation Components of the RTU-Based SAS Hardware: Server /Workstation Remote Terminal Unit Protocol : DNP 3.0, Modbus, IEC Digital Input Card (DI) Digital Output Card (DO) Analog Input Card(AI), Transducers, Converter, interfacing relay Opto Coupler, etc. Server – Processor, Memory and Speed 30% during high activity Workstation – Dual Video card , high resolution high Monitor – High resolution BCC

Components of the RTU-Based SAS
Substation Automation Components of the RTU-Based SAS Software: OS Windows Database Ms SQL SCADA Software (Small Scale 10,000 points) Data Acquisition and Control Graphical Trending Alarm Management Report Management User Interface Sequence of Events (SOE) Points List ,and Single Line Diagram, etc. So many cable in reels are needed in the substation, In the government practice? NOT BAD but we have social responsibilities, However, in Private “cost “ a big issue. BCC

but, you have many copper wires
Substation Automation but, you have many copper wires So many cable in reels are needed in the substation, In the government practice? NOT BAD but we have social responsibilities, However, in Private “cost “ a big issue. BCC

...You may also have too many Legacy Protocols
Substation Automation ...You may also have too many Legacy Protocols Different Legacy Protocols, Propriety to the manufacturer, usually Modbus for Digital Meter, DNP 3.0 , for protection, LON bus for ABB , Master / Slave communication, Only one Master is talking at a time, Message exchange in KBps, etc. BCC

Protocol A Protocol is an Agreement Between Two Devices on How to Communicate A set of: Message formats Services Procedures Addressing and naming conventions Different Legacy Protocols, Propriety to the manufacturer, usually Modbus for Digital Meter, DNP 3.0 , for protection, LON bus for ABB , Master / Slave communication, Only one Master is talking at a time, Message exchange in KBps, etc. Protocol – in people - talking on the same language so that the can understand each other. In Devices – its a message format and structure, for addressing, message length, baud rate , function codes, CRC checking, etc. BCC

Protocol A Protocol Defines Messages and Rules to Get the Job Done
Substation Automation Protocol A Protocol Defines Messages and Rules to Get the Job Done How to establish or end communication? Who manages the communications? How to direct/route messages? How is data represented or protected? How to control performance? The types of data supported? Supported “Commands” How to detect “errors” How to recover from errors? BCC

Trends in Technology for SA
Substation Automation Trends in Technology for SA Copper wires, large space for the panel cabinets BCC

Trends in Technology for SA
IEC Substation Automation Trends in Technology for SA X You may place the Bay Cubicle in the particular location Disadvantage for the fiber optic is that you need a special tools for checking the continuity and splicing for a break/cut. Purchase tools and train people. Advantage is that you know as soon as the fiber link is open, it is being monitored in the System and it can trigger an alarm. BCC

IEC 61850 Architecture Station Bus Process Bus VT CT
IEC Substation Automation MBSC IEC Architecture SCADA Client/Server Substation Host Fast Ethernet Communication Station Bus IP Address IP Address IP Address IP Address IED1 IED2 IED3 Focus more on what to communicate and How to communicate as well, Server-to Client Architecture thru the LAN, Fast Ethernet 100MBps to 1-GBps, (TCP/IP ) Uses IP address for each device Fast Ethernet Intelligent Switch, VLAN Server Client Server/Client Process Bus VT CT BCC

IEC 61850 Architecture Station Bus Process Bus VT CT
IEC Substation Automation IEC Architecture SCADA Master Substation Host Slave Client Station Bus Server IED1 Client IED2 IED3 Server/Client Server – Client Architecture Publisher – Subsbriber Reporting Supports: Musti-cast, Pier to Pier message exchange Process Bus VT CT BCC

The standard IEC „Communication Networks and Systems in Substations“ will provide interoperability between the electronic devices (IEDs) for protection, monitoring, metering, control and automation in substations. Interoperability and free allocation of functions opens up a vast range of possible solutions, but the consideration of customer requirements and commercially available equipment will scale down this range to a handful of them. BCC

Standard IEC 61850 IEC 61850 - Substation Automation
The functions performed by Substation Automation (SA) system are in, general, switch control, data monitoring, protection etc. In IEC-61850, these functions are broken into low-level functions called sub-functions. Each sub-function is performed by the IED installed in the substation. Each IED can perform one or many sub functions. A set of sub-functions is integrated together to realize a substation automation function. These communicate with each other through Local Area Network in the substation. Focus more on what to communicate (Standard Device Content), and How to communicate as well BCC

Common Model for electrical system What to standardize
IEC Substation Automation Standard IEC Communication Networks and Systems for Power Utility Automation Common Model for electrical system What to standardize Need communication – not only connection Benefits Focus more on what to communicate (Standard Device Content), and How to communicate as well BCC

3 - phase currents and voltages Report, Event, Logs,
IEC Substation Automation What to Standardize 3 - phase currents and voltages Report, Event, Logs, Substation Configuration Language (SCL) Generic Object Oriented Substation Event (GOOSE), etc BCC

Common Model for Electrical System
IEC Substation Automation Common Model for Electrical System Status Settings, Measurements A Phase Current PhV Phase to ground voltage PhV.PhsA PhV.PhsB ... PPV Phase to phase voltage W Phase active power Var Phase reactive power VA Phase apparent power TotalW Total active power TotalVar Total reactive power TotalVA Total apparent power Hz Frequency BCC

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Time Critical Communication Services , mapped directly to the Ethernet (Link Layer) . Mac Address Generic Object Oriented Substation Events, Data Link Layer Protocol, VLAN and Ether-type Event - occurrence of any change of state , an IED will multicast a high speed, Generic Object Oriented Substation Event (GOOSE) report enables high speed trip signals to be issued. Max retransmission timeout parameter defines the final cycle of transmitting GOOSE messages. This can be called GOOSE keep alive cycle and it is common for the IEDs. NO retransmission within this time allows GOOSE Subscribers to assume GOOSE Publisher failure. GOOSE NI signals can be used to trigger relay outputs, to block protection functions, to initiate auto-reclose operations, to block controlled objects. They can also be used in building application logic schemes. For example : Overvoltage and it was configured as GOOSE, the signal is send in Publisher –Subscriber communication mode, where with in 4 ms the GOOSE control is sending in burst repeatedly !, On the occurrence of any change of state! BCC

IEC 61850 – Protocols for Substation Automation
IEC maps to VLAN=Ethernet BCC

IEC 61850 – Protocols for Substation Automation
7 6 5 4 3 OSI 7- layers , For those who “ Mahilig Kumain” neumonic ..Please Do Not Throw Sausage Pizza Away For the Ladies ... Please Do No Throw Shorts Panties Away Mapping of data : for ACSI, Abstract Communication Service Interface. MMS Manufacturing Message Structure GOOSE, Sampled Values, GSSE Data Link messages (Ethernet – MAC Address) 2 1 7 Layers of the OSI Model (Open System Interconnection ) BCC

GOOSE Back to Slide GOOSE! GOOSE , and GSSE, Generic Substation State Event Time Critical Communication Services , mapped directly to the Ethernet (Link Layer) . Mac Address MAC Address parameter defines Ethernet multicast address as a destination of GOOSE messages transmitted. Max retransmission timeout parameter defines the final cycle of transmitting GOOSE messages. This can be called GOOSE keep alive cycle and it is common for the IEDs. NO retransmission within this time allows GOOSE Subscribers to assume GOOSE Publisher failure. For the GOOSE message it is like the wild GEESE flying in V formation, and it takes the VLAN and Ether-type route, (Fast and Sure Cut ? /Short Cut ! ) On the other hand, the route for the normal message is being capsulated and de-capsulated in every layer. BCC

BMU BMU: BAY MEASUREMENT UNIT BPU: BAY PROTECTION UNIT BCU: BAY CONTROL UNIT LARGE DISPLAY ENGINEERING WORKSTATION GATEWAY REMOTE ACCESS BCU BPU IEC WRAPPER P H GATEWAY / SERVER TYPICAL SUBSTATION AUTOMATION SYSTEM -MBSC GPS STATION LEVEL BAY LEVEL PROCESS LEVEL HIGH / MEDIUM VOLTAGE EQUIPMENT CT, VT, DI, DO FUTURE EXPANSION VOLTAGE EQUIPMENT CT, VT, DI, DO, AI AUXILIARY I/O’s LEGACY / IED’s Redundant LAN IEC 61850 OPERATOR WORKSTATION 1 OPERATOR WORKSTATION 2 MAINTENANCE WORKSTATION NETWORK PRINTER Router TELECOM REMOTE MAINTENANCE Firewall TCP IP Serial REGIONAL / AREA / BACKUP CONTROL CENTER REMOTE LEVEL Bay Control Unit, Metering, and Protection, BCU shall have a redundant LAN Card Redundant : LAN - switch Fast Ethernet , Server (Hot – Standby) , Workstation, Gateway, Power Supply ,UPS ( Server – Client Architecture) . For Server – Processing Power and Memory, For Workstation – it shall have high resolution monitor and video card. GPS for the time synchronization, SCADA SOFTWARE, Control and Monitoring functions , real-time display, etc. During test and commissioning: response of the display to update real time data, response to command for Trip and Close. Fill-over redundancy from Hot to standby, During high activity “ tripping”, burst of data sent to the client from the servers, the processing power and the memory shall not fall to less than 30 % , Firewall for cyber security. For IED proprietary /Legacy protocol; use converter or wrapper For the Engineering / Maintenance Workstations: Updating , reconfiguration, Backup, etc. BCC

BMU BMU: BAY MEASUREMENT UNIT BPU: BAY PROTECTION UNIT BCU: BAY CONTROL UNIT LARGE DISPLAY ENGINEERING WORKSTATION GATEWAY REMOTE ACCESS BCU BPU IEC WRAPPER P H GATEWAY / SERVER SUBSTATION AUTOMATION SYSTEM GPS STATION LEVEL BAY LEVEL PROCESS LEVEL HIGH / MEDIUM VOLTAGE EQUIPMENT CT, VT, DI, DO FUTURE EXPANSION VOLTAGE EQUIPMENT CT, VT, DI, DO, AI AUXILIARY I/O’s LEGACY / IED’s Redundant LAN IEC 61850 OPERATOR WORKSTATION 1 OPERATOR WORKSTATION 2 MAINTENANCE WORKSTATION NETWORK PRINTER Router TELECOM REMOTE MAINTENANCE Firewall TCP IP Serial REGIONAL / AREA / BACKUP CONTROL CENTER REMOTE LEVEL Primary – Hot Configuration: LAN, Severs, etc, Fill-over , in the event the Primary LAN /Server will down the Hot will TAKE- OVER in seamless way (e.g. TAKE-OVER of POST), unlike with the Hot-Stand By configuration, which will take a few minutes to CHANGE-OVER, (e. g. Change-Over of Command , it has ceremony, speeches, and oath taking etc. Not only dual RJ45 ports but Dual NIC – Network Interface Card BCC

End of MBSC Overview IEC 61850 - Substation Automation
Human Machine Interface (HMI ) End of MBSC Overview Graphical trending for analog measurement MW, MVAR, Frequency, Voltage Real-time status of the Substation equipment Query from the Database ,and export the file to CSV, and make your own report format , Tables, Graphs Alarms, SOE, etc. I there is an Internet connections: Facebook, tweeter, etc. but under the policy , its not allowed, controlled by the network administrator, Physical security: the CPUs are placed in a rack cabinet and only the mouse and keyboard Monitor are available for the user, by using KVM extender. HMI? Before it was MMI Man Machine Interface, because not all Substation Engineer maybe somebody aren’t men? Some are AC/DC, BCC

Bay control unit (bcu) IEC 61850 - Substation Automation
The REC670 is a Bay control IED. It is designed for the control, monitoring and protection of circuit breakers, disconnectors, earthing switches, transformer tap changer and other controllable field devices in different switchgear configurations. It can be integrated to a substation automation system and communicates with the master station primarily using IEC protocol. Different functions which used to be handled by different devices for the control and monitoring of a substation bay is integrated into one intelligent device called a Bay Control Unit or BCU. What is a BCU? One time when I was reading about BCU “may text si Mrs”!, But I was not able to read my cell-phone, but after an hour, I open and read it, the text was “BCU” I wonder why my WIFE knows BCU? But anyway among the IED’s will take up BCU so that you be able to send text …..“BCU” but not the METER nor PROTECTION relay… you may by-pass the protection , BCU sounds not familiar to some of you, but most Engineers are “ MAHILIG sa CONTROL ”We have Regional Control, Area Control, control room, control panel, control engineer “maraming control” at kong ano ano pa So.. Well take a look for BCU. BCC

FUNCTIONAL ARCHITECTURE The main substation automation (SA) function consists of several sub-functions which are appropriately interfaced. These sub-functions are known as Logical Nodes (LN). Logical nodes reside in the IED which is also called a Logical. The LN is the smallest part of a function, which communicates with other LNs and which may be implemented in a separate IED. Device (LD). One logical device (IED1) holds one or multiple Logical Nodes (LN1 and LN2). BCC

The LN is the smallest part of a function, which communicates with other LNs and which may be implemented in a separate IED. The LN is an object, which comprises at least all related mandatory data and attributes and all extensions according to the rules of IEC It defines also the standardized access to its data. Therefore, LNs allow defining functional requirements in a standardized way. The resulting LN names (see section 3.3.2) may be used in the SLD (see Figure 2) representing the requested functionality. By adding the data objects used by the LNs as LN type BCC

IEC offers the concept of logical nodes (LN) for formally defining functions FUNCTIONAL ARCHITECTURE The LN is the smallest part of a function, which communicates with other LNs and which may be implemented in a separate IED. The LN is an object, which comprises at least all related mandatory data and attributes and all extensions according to the rules of IEC It defines also the standardized access to its data. Therefore, LNs allow defining functional requirements in a standardized way. The resulting LN names (see section 3.3.2) may be used in the SLD (see Figure 2) representing the requested functionality. By adding the data objects used by the LNs as LN type BCC

Substation Configuration Language (SCL)
IEC Substation Automation Substation Configuration Language (SCL) Type of SCL Files SSD – System Specification Description SCD – Substation Configuration Description ICD – IED Capability Description CID - Configured IED Description The standard IEC 61850 requires that any conformant IED has to provide an SCL based description, i.e. a file with all its capabilities. This IED Configuration Description (ICD) may be supplied on data storage medium like a CD or may be readable from the device itself. Important is that this standardized file can be read and written by all conformant system engineering tools. This tool may also contain a database with all ICDs for IEDs, which are common for the system integrator. BCC

Substation Configuration Language (SCL)
IEC Substation Automation Substation Configuration Language (SCL) The standard IEC requires that any conformant IED has to provide an SCL based description, i.e. a file with all its capabilities. This IED Configuration Description (ICD) may be supplied on data storage medium like a CD or may be readable from the device itself. Important is that this standardized file can be read and written by all conformant system engineering tools. This tool may also contain a database with all ICDs for IEDs, which are common for the system integrator. The standard IEC 61850 requires that any conformant IED has to provide an SCL based description, i.e. a file with all its capabilities. This IED Configuration Description (ICD) may be supplied on data storage medium like a CD or may be readable from the device itself. Important is that this standardized file can be read and written by all conformant system engineering tools. This tool may also contain a database with all ICDs for IEDs, which are common for the system integrator. BCC

The standard IEC requires that any conformant IED has to provide an SCL based description, i.e. a file with all its capabilities. This IED Configuration Description (ICD) may be supplied on data storage medium like a CD or may be readable from the device itself. Important is that this standardized file can be read and written by all conformant system engineering tools. This tool may also contain a database with all ICDs for IEDs, which are common for the system integrator. BCC

IED Tools connectivity package give access to the functionalities of the IED’s. allows integration of IED in to SCADA System The standard IEC requires that any conformant IED has to provide an SCL based description, i.e. a file with all its capabilities. This IED Configuration Description (ICD) may be supplied on data storage medium like a CD or may be readable from the device itself. Important is that this standardized file can be read and written by all conformant system engineering tools. This tool may also contain a database with all ICDs for IEDs, which are common for the system integrator. BCC

The standard IEC requires that any conformant IED has to provide an SCL based description, i.e. a file with all its capabilities. This IED Configuration Description (ICD) may be supplied on data storage medium like a CD or may be readable from the device itself. Important is that this standardized file can be read and written by all conformant system engineering tools. This tool may also contain a database with all ICDs for IEDs, which are common for the system integrator. BCC

THE END BCC

THANK YOU BCC BCC

BCC BCC

IEC PROTOCOLS BCC BCC

Design Process IEC 61850 - Substation Automation Single Line Diagram
Select IEDs (Physical Devices Check LD’s (Logical Devices) Map Functions (SSD LNs to ICD LNs SSD System Specification Description Detail Design (Signal flow, etc. Communication Architecture Single Line Diagram of the Substation, HV, MV, Aux CMC, Control, Monitor, Protection, Physical IED ABB, AREVA, Siemens, NARI Logical Devices : Bus 1, Bus 2, Middle breakers, SSD to ICD LN’s Communication, Bus, Ring, etc, Fiber Optic, and UTP. Signal Flow: Client / Server, Publisher –Subscriber, VLAN Substation Automation Functionality Detail Design (IED Functions) SCD System Configuration Description BCC

By: BBCambalon BCC BCC

Substation Automation

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