Protocolo MirroredBits SEL

8182019 Protocolo MirroredBits SEL

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MIRRORED BITSreg COMMUNICATIONS

SIMPLE POWERFUL FIELD983085PROVEN



2

Use patented SEL MIRRORED BITS communications to implement advancedprotection control and monitoring

Economical

Eliminate expensive external commu-nications equipment wiring and

maintenanceSimple

Operate directly through a serial digitalchannel

Secure

Exchange up to eight bits of informationwith protection-level security depend-ability and speed

Flexible

Use common communications channelsincluding dedicated optical fiber

multiplexed digital networks analogmicrowave and spread-spectrum radio

Monitored

Report time-stamped sequence of eventscommunications disturbances event typeand duration and channel availability in adetailed communications log available ineach relay or logic processor

OVERVIEW

TECHNOLOGY OVERVIEW

MIRRORED BITS communications is an innovative low-cost relay-to-relay communi-cations technology that sends internal logic status encoded in a digital messagefrom one device to another This technology opens the door to numerous protectioncontrol and monitoring applications that would otherwise require more expen-sive external communications equipment wired through contacts and controlinputs Applications for MIRRORED BITS communications include line protection pilot

schemes remote device control and monitoring relay cross tripping and more

SEL RELAY 1 SEL RELAY 2

T

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N

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T

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E

C

E

I

V

E

T

R

A

N

S

M

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T

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C

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TMB1

TMB2

TMB8

RMB1

RMB2

RMB8

TMB1

TMB2

TMB8

RMB1

RMB2

RMB8

OPERATIONAL OVERVIEW

The Received MIRRORED BITS (RMBs) of one relay follow the status of the respectiveTransmit MIRRORED BITS (TMBs) sent from the other relay Use the RMBs in program-mable logic to implement transfer tripping blocking interlocking permissiveschemes direct control or any function that can normally be per formed with aprogrammable contact input Each of the relays in the scheme repeatedly sendsand receives the digital logic message while continually monitoring and checkingthe received message integrity An internal monitoring point asserts when a good

signal is received and deasserts immediately upon detection of a bad messageOther elements are available for channel alarming and availability as well

KNOW THE STATUS OF YOUR COMMUNICATIONS LINK

The MIRRORED BITS communications log takes the guesswork out of the perfor-mance of your communications system The communications log example belowdemonstrates the type of data available for communications event analysis

In addition to the communications log a separate communications Sequence ofEvents report is available This report contains time tags for the asser tion anddeassertion of any of the reported communications failures

=gtcom a

SEL-311L 87L Date 052803 Time 152656250

EXAMPLE BUS B BREAKER 3

FID=SEL-311L-R108-V0-Z003002-D20030329 CID=E097

Summary for Mirrored Bits channel A

For 012203 180611003 to 052803 152656249

Total failures 1 Last error Relay Disabled

Relay Disabled 1

Data error 0 Longest Failure 0000 sec

Re-Sync 0

Underrun 0 Unavailability 000000

Overrun 0

Parity error 0

Framing error 0 Loop-back 0

Bad Re-Sync 0

=gt



3

APPLICATIONS

421SEL-421SEL-

RemoteMonitoring

Digital Analog or Virtual Terminal

MIRRORED BITSreg Communications

52 52ENHANCED MIRRORED BITS COMMUNICATIONS

Available in the SEL-400 Series Relays

middot Transmit analog and digital values

middot Establish an engineering connection with the remoterelay via vir tual terminalMIRRORED BITS communications

middot Synchronize the relay internal clock with MIRRORED BITS communications

BREAKER CONTROL AND MONITORING

Use Fiber Optics in Place of Control Wiring

Use the SEL-2505 Remote IO Module to eliminate controlwiring between a circuit breaker and its associated relayMIRRORED BITS communications can also be used to provide

breaker position and monitoring Fiber optics eliminate dcsignal ground loops and hazardous induced voltages causedby ground potential rise

SEL RelaySEL-

2505Breaker

Substation Yard Control House

Fiber-Optic Link

AUTOMATE YOUR DISTRIBUTION SYSTEM

Transfer Sources Keep Load in Service During Outage

middot Use SEL MIRRORED BITS communications to securely sharerecloser status source status and other logic information

between SEL-651R Advanced Recloser Controls

middot Check voltage or synchronism check on closing

middot Use 12 Vdc auxiliary power available for modem or radio

Source 1Source 2Recloser Recloser

Hospital(critical load)

Fiber link up to 16 kmusing SEL-2815

MIRRORED BITSreg

Communications

3 1 1 3

SEL-

651RSEL-

651R

FAST BUS TRIP APPLICATIONWITH THE SEL9830852100 PROTECTION

LOGIC PROCESSOR

1

3 0

PU

2

1 = Trip

TimerTrip

Fault = 1No Fault = 0

No Fault = 0

Link to integrated system

RELAY 2

RELAY 3

RELAY 1

Relay 1 detects forward faultand Relays 2 and 3 do not detectfault so SEL-2100 transmits tripdecision to Relay 1 Relay 1 tripsto clear bus fault

SEL-2100

Protection Logic Processor



copy 1996ndash2014 by Schweitzer Engineering Laboratories Inc

PF00048 middot 20140327

SCHWEITZER ENGINEERING

LABORATORIES INC

Tel +15093321890Email info983104selinccomWeb wwwselinccom

MAKING ELECTRIC POWER SAFER

MORE RELIABLE AND MORE ECONOMICAL

Line Protection Automation and Monitoring

Legacy SEL-311A Phase and Ground Distance RelayLegacy S EL-311B Distance Relay With RecloserSEL-311C Transmission Protection SystemSEL-311L Line Current Dif ferential SystemSEL-321 Phase and Ground Distance Relay

SEL-411L Advanced Line Differential Protection Automation and Control SystemSEL-421 Protection Automation and Control System

Distribution and Feeders

SEL-351 Protection SystemSEL-351R Recloser ControlSEL-351R Falcontrade Recloser ControlSEL-351RS Kestrelreg Single-Phase Recloser ControlSEL-351S Protection SystemSEL-451 Protection Automation and Bay Control S ystemSEL-651R Advanced Recloser ControlSEL-751 Feeder Protection RelaySEL-751A Fee der Protection Relay

Substations

SEL-487B Bus Differential and Breaker Failure RelaySEL-487E Transformer Pr otection Relay

SEL-487V Cap acitor Bank Protection and Control SystemSEL-787 Transformer Protection RelaySEL-2414 Transformer Monitor

Generators and Distributed Generation Interconnections

SEL-700G Generator Protection RelaySEL-700GT Intertie Protection RelaySEL-700GW Wind Generator Relay

Motors

SEL-710 Motor Protection RelaySEL-710-5 Motor Protection Relay

PRODUCT AVAILABILITY

FIELD983085PROVEN TECHNOLOGY

Join other SEL customers who have usedMIRRORED BITS

communications since 1996 for fast secure and dependablecommunications Contact SEL for papers application guidesand other information to learn more about field-provenMIRRORED BITS communications applications

RELATED INFORMATION

Visit wwwselinccom to download SELMIRRORED BITS

communications information

middot Application Guide AG2001-12 Implementing MIRRORED BITS

Technology Over Various Communications Media

middot Technical Paper International DrivemdashDistributionAutomation and Protection

Metering

SEL-734 Advanced Metering SystemSEL-735 Power Quality and Revenue Meter

Automation and SCADA

SEL-2100 Logic Processor

SEL-2240 A xion

reg

SEL-2411 Progr ammable Automation ControllerSEL-2440 DPAC Discrete Programmable Au tomation ControllerSEL-2505 Remote IO ModuleSEL-2506 Rack-Mount Remote IO ModuleSEL-2523 Annunciator PanelSEL-2533 AnnunciatorSEL-3505 Automation ControllerSEL-3530 Real-Time Automation Controller (RTAC)

Testing

SEL-4388 MIRRORED BITS TesterSEL-2505PB MIRRORED BITS Interface

SEL Products That Aid in MIRRORED BITS Implementation

SEL-2126 Fiber-Optic Transfer SwitchSEL-2800 Fiber- Optic Transceivers

SEL-2810 Fiber-Optic Transceivers With IRIG-BSEL-2812 Fiber-Optic Transceivers W ith IRIG-BSEL-2814 Fiber-Optic Transceivers With Hardware Flow ControlSEL-2815 Fiber-Optic TransceiversSEL-2829 Fiber-Optic TransceiversSEL-2830 Fiber- Optic TransceiversSEL-2831 Fiber-Optic TransceiversSEL-2894 Interface C onverterSEL-3094 Interface C onverterSEL-9220 Fiber-Optic Adapter for SEL-300 Ser ies Relays

MIRRORED BITS COMMUNICATIONS IS A STANDARD FEATURE IN THESE PRODUCTS



2

Use patented SEL MIRRORED BITS communications to implement advancedprotection control and monitoring

Economical

Eliminate expensive external commu-nications equipment wiring and

maintenanceSimple

Operate directly through a serial digitalchannel

Secure

Exchange up to eight bits of informationwith protection-level security depend-ability and speed

Flexible

Use common communications channelsincluding dedicated optical fiber

multiplexed digital networks analogmicrowave and spread-spectrum radio

Monitored

Report time-stamped sequence of eventscommunications disturbances event typeand duration and channel availability in adetailed communications log available ineach relay or logic processor

OVERVIEW

TECHNOLOGY OVERVIEW

MIRRORED BITS communications is an innovative low-cost relay-to-relay communi-cations technology that sends internal logic status encoded in a digital messagefrom one device to another This technology opens the door to numerous protectioncontrol and monitoring applications that would otherwise require more expen-sive external communications equipment wired through contacts and controlinputs Applications for MIRRORED BITS communications include line protection pilot

schemes remote device control and monitoring relay cross tripping and more

SEL RELAY 1 SEL RELAY 2

T

R

A

N

S

M

I

T

R

E

C

E

I

V

E

T

R

A

N

S

M

I

T

R

E

C

E

I

V

E

TMB1

TMB2

TMB8

RMB1

RMB2

RMB8

TMB1

TMB2

TMB8

RMB1

RMB2

RMB8

OPERATIONAL OVERVIEW

The Received MIRRORED BITS (RMBs) of one relay follow the status of the respectiveTransmit MIRRORED BITS (TMBs) sent from the other relay Use the RMBs in program-mable logic to implement transfer tripping blocking interlocking permissiveschemes direct control or any function that can normally be per formed with aprogrammable contact input Each of the relays in the scheme repeatedly sendsand receives the digital logic message while continually monitoring and checkingthe received message integrity An internal monitoring point asserts when a good

signal is received and deasserts immediately upon detection of a bad messageOther elements are available for channel alarming and availability as well

KNOW THE STATUS OF YOUR COMMUNICATIONS LINK

The MIRRORED BITS communications log takes the guesswork out of the perfor-mance of your communications system The communications log example belowdemonstrates the type of data available for communications event analysis

In addition to the communications log a separate communications Sequence ofEvents report is available This report contains time tags for the asser tion anddeassertion of any of the reported communications failures

=gtcom a

SEL-311L 87L Date 052803 Time 152656250

EXAMPLE BUS B BREAKER 3

FID=SEL-311L-R108-V0-Z003002-D20030329 CID=E097

Summary for Mirrored Bits channel A

For 012203 180611003 to 052803 152656249

Total failures 1 Last error Relay Disabled

Relay Disabled 1

Data error 0 Longest Failure 0000 sec

Re-Sync 0

Underrun 0 Unavailability 000000

Overrun 0

Parity error 0

Framing error 0 Loop-back 0

Bad Re-Sync 0

=gt



3

APPLICATIONS

421SEL-421SEL-

RemoteMonitoring












SEL RelaySEL-

2505Breaker


Fiber-Optic Link










MIRRORED BITSreg

Communications

3 1 1 3

SEL-

651RSEL-

651R


LOGIC PROCESSOR

1

3 0

PU

2

1 = Trip

TimerTrip


No Fault = 0


RELAY 2

RELAY 3

RELAY 1


SEL-2100





PF00048 middot 20140327


LABORATORIES INC









Substations





Motors






RELATED INFORMATION






Metering




SEL-2240 A xion

reg


Testing








3

APPLICATIONS

421SEL-421SEL-

RemoteMonitoring












SEL RelaySEL-

2505Breaker


Fiber-Optic Link










MIRRORED BITSreg

Communications

3 1 1 3

SEL-

651RSEL-

651R


LOGIC PROCESSOR

1

3 0

PU

2

1 = Trip

TimerTrip


No Fault = 0


RELAY 2

RELAY 3

RELAY 1


SEL-2100





PF00048 middot 20140327


LABORATORIES INC









Substations





Motors






RELATED INFORMATION






Metering




SEL-2240 A xion

reg


Testing









PF00048 middot 20140327


LABORATORIES INC









Substations





Motors






RELATED INFORMATION






Metering




SEL-2240 A xion

reg


Testing






Documents

Protocolo MirroredBits SEL