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SEL-451 Data Sheet

Schweitzer Engineering Laboratories, Inc.

8

The operator can see all valuable information on a bay 
before making a critical control decision. Programmable 
interlocks help prevent operators from incorrectly open-
ing or closing switches or breakers. The SEL-451 will 
not only prevent the operator from making an incorrect 
control decision, but can notify and/or alarm when an 
incorrect operation is initiated.

                    

                    

                    

                    

Circuit Breaker Operations From 
the Front Panel

Figure 6

 through 

Figure 9

 are examples of some of the 

many selectable one-line diagrams in the SEL-451. The 
one-line diagram is selectable from the Bay settings. 
Additional settings for defining labels and analog quanti-
ties are also found in the Bay settings. One-line diagrams 
are composed of the following:

Bay Names and Bay Labels (Bay Labels available 
in one-line diagrams 14, 17, 18, and 23. All other 
one-line diagrams use the Bay Name.)

Busbar and Busbar Labels

Breaker and Breaker Labels

Disconnect Switches and Disconnect Switch Labels

Analog Display Points

Figure 10

 shows the Breaker Control Screens available 

when the 

ENT

 pushbutton is pressed with the circuit 

breaker highlighted as shown in 

Figure 10

 (a). After 

pressing the 

ENT

 pushbutton with the breaker highlighted 

                    

Figure 6

Breaker-and-a-Half

                    

Figure 7

Ring Bus With Ground Switch

BAYNAME

BK2

BK1

SW1

SW2

BK3

BAYLAB2

BAYLAB1

BUSNAM1

BUSNAM2

ESC

NAVIG

BAYNAME

6 ANALOGS
I:99999.9 A
V:99999.9 KV
P:99999.9 MW
Q:99999.9 MV 
F:99.9 HZ

BAYLAB1

SW2

SW3

BK1

BK2

SW1

BAYLAB2

ESC

NAVIG

                    

Figure 8

Double Bus/Double Breaker

                    

Figure 9

Source Transfer Bus

BAYNAME

6 ANALOGS 
I:99999.9 A
V:99999.9 KV
P:99999.9 MW
Q:99999.9 MV 
F:99.9 HZ

BUSNAM1

SW2

SW3

BK1

BK2

SW1

BUSNAM2

ESC

NAVIG

BAYNAME

BUSNAM1

BK1

BK2

BUSNAM2

BAYLAB1

I:99999.9 A
V:99999.9 KV
P:99999.9 MW

I:99999.9 A
V:99999.9 KV
P:99999.9 MW

ESC

NAVIG

Содержание SEL-451-5

Страница 1: ...rogrammable elements for local control remote control protection latching and automation latching Local metering on the large format front panel LCD eliminates the need for separate panel meters Serial and Ethernet links efficiently transmit key information including metering data protection element and control input output I O status IEEE C37 118 Synchrophasors IEC 61850 Edition 2 GOOSE messages ...

Страница 2: ...ion of transfer tripping is included Sequential Events Recorder SER Record the last 1000 events including setting changes power ups and selectable logic elements Dual CT Input Apply with ring bus breaker and a half or other two breaker schemes Combine currents within the relay from two sets of CTs for protection functions but keep them separately available for monitoring and station integration ap...

Страница 3: ... MET PMU SBM SER 4 EIA 232 2 Ethernet 1 16S EC 81O U SIP THM SIP THM Software Invertible Polarities IEC 60255 Compliant Thermal Model 32 O U Synchronism Check Over and Underpower Overcurrent Dual Breaker Failure Overcurrent Time Overcurrent Trip Close Pushbuttons Overvoltage Directional Overcurrent Autoreclosing Over and Underfrequency 32O U Access Security Serial Ethernet Best Choice Ground Break...

Страница 4: ...ercurrent 67 Dual Circuit Breaker Failure 50 BF Synchronism Check 25 Instantaneous Overcurrent 50 Time Overcurrent 51 Over Undervoltage 27 59 Over Underpower 32 Frequency 81 Reclosing 79 Expanded SELOGIC Control Equations Event Reports and Oscillography Sequential Events Recorder SER Dual Breaker Condition Monitor Station Battery Monitor Fault Locator Load Encroachment Supervision TiDL Remote Data...

Страница 5: ... drops below pickup for one cycle The other choice emulates the reset characteristic of an electromechanical induction disc relay Breaker Failure Protection Incorporated into the SEL 451 is a full function breaker failure system Current can be individually monitored in two breakers High speed open pole detection logic allows you to set the pickup current below minimum load for sensitivity without ...

Страница 6: ...ts This allows col lecting separate current metering and breaker monitor information for each breaker Breaker monitoring func tions for two breakers are done within one relay Individ ual breaker currents allow for breaker failure functions on a per breaker basis within the SEL 451 Breaker diag nostics are reported on a comparative basis allowing for advanced proactive troubleshooting Custom Contro...

Страница 7: ... or MIRRORED BITS to switch protection upon loss of one relay Bay Control The SEL 451 Bay Control provides dynamic bay one line diagrams on the front panel screen with disconnect and breaker control capabilities for numerous predefined user selectable bay types Additional user selectable bay types are available via a QuickSet interface that can be downloaded at selinc com The bay control is equipp...

Страница 8: ...bels available in one line diagrams 14 17 18 and 23 All other one line diagrams use the Bay Name Busbar and Busbar Labels Breaker and Breaker Labels Disconnect Switches and Disconnect Switch Labels Analog Display Points Figure 10 shows the Breaker Control Screens available when the ENT pushbutton is pressed with the circuit breaker highlighted as shown in Figure 10 a After pressing the ENT pushbut...

Страница 9: ... a disconnect is designated as status only the disconnect is displayed in the one line diagram of the relay front panel HMI but it is not select able when navigating the front panel HMI Three posi tion disconnects are also supported with control display functionality on a per position basis Rules Based Settings Editor QuickSet develops settings on or offline The system automatically checks interre...

Страница 10: ...ram and a form with apparatus specific settings is displayed QuickSet Templates Use the fully licensed version of QuickSet to create custom views of settings called Application Designs to reduce complexity decrease the chance of errors and increase productivity Lock and hide unused settings Lock settings to match your standard for protection I O assignment communications and SELOGIC control equati...

Страница 11: ...nt panel labels to change the function and identification of target LEDs and operator control pushbuttons and LEDs The blank slide in label set is included with the SEL 451 Label sets can be printed from a laser printer using templates supplied with the relay or hand labeled on supplied blank labels Figure 12 Factory Default Status and Trip Target LEDs 8 Pushbutton 16 Target Option Figure 13 Facto...

Страница 12: ...front panel navigation buttons Auxiliary Trip Close Pushbuttons and Indicating LEDs Optional auxiliary trip and close pushbuttons see Figure 17 and indicating LEDs allow breaker control independent of the relay The auxiliary trip close push buttons are electrically separate from the relay operating even if the relay is powered down Make the extra con nections at terminals 201 through 208 See Figur...

Страница 13: ...ickup dropout recloser state changes etc The relay SER stores the latest 1 000 entries Voltage Sag Swell Interruption Records The SEL 451 can perform automatic voltage disturbance monitoring for three phase systems The voltage sag swell interruption VSSI recorder uses the VSSI Relay Word bits to determine when to start trigger and when to stop recording The VSSI recorder uses nonvola tile memory s...

Страница 14: ...rial port communications on the LCD and in the Event Report Use the event report data to see an oscillographic display of the battery voltage Monitor the substation battery voltage drops during trip close and other control operations Figure 19 Example PTP Network SEL 487B SEL 487E SEL 411L SEL 421 SEL 451 GPS SEL 2488 SEL 2740M Figure 20 SNTP Diagram SEL 2401 SEL 3354 SEL 2725 SEL 487E Table 3 Met...

Страница 15: ...n Time Domain Link TiDL Technology The SEL 451 supports remote data acquisition through use of an SEL Axion with a technology known as TiDL The Axion provides remote analog and digital data over an IEC 61158 EtherCAT TiDL network This technology provides very low and deterministic 1 5 ms latency over a point to point architecture The SEL 451 can receive as many as eight fiber links from as many as...

Страница 16: ...tching control points Program latch set and latch reset conditions with SELOGIC control equations Set or reset the latch control points via control inputs remote control points local control points or any programmable logic condition The latch control points retain states when the relay loses power Replace traditional indicating panel lights and switches with as many as 24 latching target LEDs and...

Страница 17: ... and other functions Compressed ASCII Comma delimited ASCII data reports Allows external devices to obtain bay data in an appropriate format for direct import into spreadsheets and database programs Data are checksum protected Extended Fast Meter Fast Operate and Fast SER Binary protocol for machine to machine communication Quickly updates SEL 2032 Communications Processors RTUs and other substati...

Страница 18: ...er tripping MIRRORED BITS also help reduce total pilot scheme operating time by eliminating the need to close output contacts and debounce contact outputs Use the dual port MIRRORED BITS communications capabilities for high speed communications assisted schemes applied to three ter minal transmission lines Communication The SEL 451 offers the following serial communication features Four independen...

Страница 19: ...fer settings files to and from the relay via the high speed Ethernet port through use of FTP IEEE C37 118 Synchrophasors The latest IEEE Synchrophasor Protocol provides a stan dard method for communicating synchronized phasor measurement data over Ethernet or serial media The integrated Ethernet card in the SEL 451 provides two independent connections by using either TCP IP UDP IP or a combination...

Страница 20: ...operating on 100 Mbps Ethernet Use the IEC 61850 Edition 2 Ethernet protocol for relay monitoring and control functions including the follow ing As many as 128 incoming GOOSE messages The incoming GOOSE messages can be used to control as many as 256 control bits and 256 analog quantities in the relay with 3 ms latency from device to device These messages provide binary control inputs to the relay ...

Страница 21: ...tication from any client requesting to initi ate an MMS session The client request must be accom panied by the 2AC level password ACSELERATOR Architect Use ACSELERATOR Architect SEL 5032 Software to manage the logical node data for all IEC 68150 devices on the network This Windows based software provides easy to use displays for identifying and binding IEC 61850 network data between logical nodes ...

Страница 22: ...es Inc 22 Diagrams and Dimensions Figure 27 Typical SEL 451 Front Panel Diagrams 3U Front Panel Rack Mount Option With Optional Bay Control Overlay 4U Front Panel Panel Mount Option 5U Front Panel Panel Mount Option With Auxiliary Trip Close Pushbuttons ...

Страница 23: ...ories Inc SEL 451 Data Sheet 23 Figure 28 Typical 3U and 4U SEL 451 Rear Panel Diagrams 3U Rear Panel Main Board 4U Rear Panel Main Board Connectorized Option INT5 I O Board 4U Rear Panel Main Board INT1 I O Board LEA Voltage Inputs ...

Страница 24: ...SEL 451 Data Sheet Schweitzer Engineering Laboratories Inc 24 Figure 29 Typical 5U SEL 451 Rear Panel Diagram Figure 30 Rear Panel With EtherCAT Board 5U Rear Panel Main Board With Two INT4 I O Boards ...

Страница 25: ...Schweitzer Engineering Laboratories Inc SEL 451 Data Sheet 25 Horizontal Mounting Shown Dimensions Also Apply to Vertical Mounting Figure 31 SEL 451 Dimensions for Rack and Panel Mount Models ...

Страница 26: ...nal 247 5 A One Second Thermal Rating 1 A Nominal 100 A 5 A Nominal 500 A One Cycle Thermal Rating 1 A Nominal 250 A peak 5 A Nominal 1250 A peak Burden Rating 1 A Nominal 0 1 VA 1 A 5 A Nominal 0 5 VA 5 A AC Voltage Inputs Three phase four wire wye connections are supported Rated Voltage Range 0 300 VL N Ten Second Thermal Rating 600 Vac Burden 0 1 VA 125 V LEA Voltage Inputs Rated Voltage Range ...

Страница 27: ...eaker Resistive DC or AC Outputs With Arc Suppression Disabled Make 30 A per IEEE C37 90 2005 Carry 6 A continuous carry 1 s Rating 50 A MOV Protection 250 Vac 330 Vdc 130 J Breaking Capacity 10 000 Operations 48 V 0 50 A L R 40 ms 125 V 0 30 A L R 40 ms 250 V 0 20 A L R 40 ms High Interrupt DC Outputs With Arc Suppression Enabled Make 30 A per IEEE C37 90 2005 Carry 6 A continuous carry 1 s Ratin...

Страница 28: ...to 85 C 40 to 185 F Note LCD contrast impaired for temperatures below 20 and above 70 C Stated temperature ranges not applicable to UL applications Humidity 5 to 95 without condensation Weight Maximum 3U Rack Unit 8 0 kg 17 7 lb 4U Rack Unit 9 8 kg 21 6 lb 5U Rack Unit 11 6 kg 25 6 lb Terminal Connections Rear Screw Terminal Tightening Torque 8 Ring Lug Minimum Maximum 1 0 Nm 9 in lb 2 0 Nm 18 in ...

Страница 29: ...DE for Power Systems Event Reports Length 0 25 24 seconds based on LER and SRATE settings Volatile Memory 3 s of back to back event reports sampled at 8 kHz Nonvolatile Memory At least 4 event reports of a 3 s duration sampled at 8 kHz Resolution 8 or 4 samples cycle Event Summary Storage 100 summaries Breaker History Storage 128 histories Sequential Events Recorder Storage 1000 entries Trigger El...

Страница 30: ...00 VLN Wye Pickup Accuracy Undervoltage Blocking 2 0 5 V Optional RTD Elements Models Compatible With SEL 2600 Series RTD Module 12 RTD Inputs via SEL 2600 Series RTD Module and SEL 2800 Fiber Optic Transceiver Monitor Ambient or Other Temperatures PT 100 NI 100 NI 120 and CU 10 RTD Types Supported Field Selectable Pickup Range Off 50 to 250 C 1 C step Accuracy 2 C As long as 500 m Fiber Optic Cab...

Страница 31: ... 0 5 0 2 8 00 V Frequency Input 40 65 Hz Accuracy 0 01 Hz Power MW P Per Phase Wye 3 Wye or Delta Per Terminal 1 0 1 1 2 INOM 33 5 300 Vac PF 1 0 5 lead lag 1 0 7 0 1 1 2 INOM 33 5 300 Vac PF 1 0 5 lead lag 3 MVAr Q Per Phase Wye 3 Wye or Delta Per Terminal 1 0 1 1 2 INOM 33 5 300 Vac PF 0 0 5 lead lag 1 0 7 0 1 1 2 INOM 33 5 300 Vac PF 0 0 5 lead lag 3 MVA S Per Phase Wye 3 Wye or Delta Per Termi...

Страница 32: ...products including without lim itation software firmware and documentation The information in this document is provided for informational use only and is subject to change without notice Schweitzer Engineering Laboratories Inc has approved only the English language document This product is covered by the standard SEL 10 year warranty For warranty details visit selinc com or contact your customer s...

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