Littelfuse PGR-8800 User Manual Download

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Pub. PGR-8800-M. December 14, 2012 • www.littelfuse.com • ©

2012

Littelfuse •

•

1/82

Arc-Flash

Relay

PGR-8800

ARC-FLASH RELAY

DECEMBER 14, 2012

REVISION 2

PGR-8800 SERIES

ARC-FLASH RELAY

Summary of Contents for PGR-8800

Page 1: ...Pub PGR 8800 M December 14 2012 www littelfuse com 2012 Littelfuse 1 82 Arc Flash Relay PGR 8800 PGR 8800 ARC FLASH RELAY DECEMBER 14 2012 REVISION 2 PGR 8800 SERIES ARC FLASH RELAY ...

Page 2: ...PGR 8800 Arc Flash Relay Rev 2 Pub PGR 8800 M December 14 2012 www littelfuse com 2012 Littelfuse 2 82 ...

Page 3: ...r Check 15 4 1 1 PGA LS10 Connection 16 4 1 2 PGA LS10 Installation 17 4 2 PGA LS20 and PGA LS25 Fiber Optic Sensor with Sensor Check 18 4 2 1 Fiber Connection 18 4 2 2 Receiver Wiring Connections 18 4 2 3 Transmitter Wiring Connections 18 4 2 4 PGA LS20 and PGA LS25 Connection 19 4 2 5 Fiber Optic Sensor Adjustment 20 4 2 5 1 Sensor Adjustment for a Fiber Length other than 60 cm 20 4 2 5 2 Sensor...

Page 4: ...tons 35 12 2 3 Default Configuration 35 12 2 4 General Settings 36 12 2 5 Optical Sensor Settings 36 12 2 6 Current Sensor Settings 38 12 2 7 Digital Input Settings 40 12 2 8 Output Settings 41 12 2 8 1 Trip Coil Output 41 12 2 8 2 Coordinated Tripping 42 12 2 9 Communications Settings 43 12 2 10 Advanced Settings 46 12 2 11 About Tab 47 12 3 Data Log Drive 47 13 COMMISSIONING 48 13 1 Configuratio...

Page 5: ...Breaker Feedback Detection 64 C 1 2 Current Sensor Detection 64 C 1 3 Total Clearing Time 64 C 1 3 1 Arc Detection Delay 64 C 1 3 2 Circuit Breaker Operating Time 64 C 1 3 3 Output Delay 65 C 1 3 4 Total Clearing Time Examples 65 C 1 4 Relay Output 65 C 1 5 Link Output 65 C 1 6 D1100 Diode Logic Unit 65 C 2 Application and Configuration 66 C 2 1 Single PGR 8800 Configuration 66 C 2 2 Dual PGR 8800...

Page 6: ... PGA LS10 Detection Range for a 3 kA Fault 15 6 PGA LS10 Connection Diagram 16 7 PGA LS10 Mounting Details 17 8 PGA LS20 and PGA LS25 Connection Diagram 19 9 LED Flash Patterns 27 C 1 Single PGR 8800 Application 67 C 2 Dual PGR 8800 Configuration using Link Interface 70 C 3 Single PGR 8800 Configuration with Current Sensor Input 72 C 4 Dual PGR 8800 Configuration using Link Interface and Current S...

Page 7: ... 8800 See Section 11 3 and Appendices A and B The PGR 8800 can be used on any electrical system with any voltage ac or dc and can be powered from either an ac or dc supply or both If it is powered from line supply it can charge a backup battery to power the PGR 8800 when the line supply is lost 1 1 Current Supervised Arc Flash Protection The PGR 8800 has three phase current inputs which can be use...

Page 8: ... trip No PC driver or software installation is required 1 6 Scalable System Up to four PGR 8800 modules can be connected into a single system allowing a total of 24 optical sensors per system 1 7 Upstream Circuit Breaker Tripping The PGR 8800 can be configured to trip an upstream circuit breaker as a backup to local circuit breaker failure Circuit breaker failure can be detected with a discrete in...

Page 9: ...which have been damaged in transport See the PGR 8800 Arc Flash Relay Application Guide for additional installation information 54 3 2 14 38 8 1 53 SIDE BOTTOM TOP FRONT 200 0 7 88 20 0 0 79 20 0 0 79 160 0 6 30 130 2 5 13 122 2 4 81 4 0 0 16 4 0 0 16 4 OPEN SLOTS 5 6 X 6 8 0 22 x 0 27 6 0 0 24 5 0 0 20 130 0 5 13 NOTES 1 DIMENSIONS IN MILLIMETRES INCHES NOTE 2 2 MINIMUM CLEARANCE REQUIRED FOR CON...

Page 10: ...ED SEE SECTION 11 R G ALARM ONLINE TO UPSTREAM CIRCUIT BREAKERTRIP COIL 24 250 VAC R TRIP NOTE 3 RED WHITE YELLOW BLACK NOTE 4 PGA LS10 POINT SENSOR NOTES 1 RELAY OUTPUTS SHOWN DE ENERGIZED 2 CURRENT SENSOR INPUTS MUST BE CONFIGURED SEE SECTION 12 3 TERMINALS 33 AND 36 ARE INTERNALLY CONNECTED FOR PGR 8800 00 ONLY 4 ATOTAL OF SIX POINT OR FIBER OPTIC SENSORS CAN BE CONNECTED 5 USB B CONNECTOR FOR ...

Page 11: ...E CONNECTED SEE SECTION 11 ALARM ONLINE TO UPSTREAM CIRCUIT BREAKERTRIP COIL TRIP NOTE 3 NOTE 4 PGA LS10 POINT SENSOR NOTE 5 RED WHITE RED WHITE YELLOW SHIELD BLACK SHIELD BLACK NOTES 1 RELAY OUTPUTS SHOWN DE ENERGIZED 2 CURRENT SENSOR INPUTS MUST BE CONFIGURED SEE SECTION 12 3 TERMINALS 33 AND 36 ARE INTERNALLY CONNECTED FOR PGR 8800 00 ONLY 4 ATOTAL OF SIX POINT OR FIBER OPTIC SENSORS CAN BE CON...

Page 12: ...elay can be supplied by ac or dc voltage 3 1 AC Supply Connect an ac supply to terminals 31 and 32 The supply voltage must be 100 to 240 Vac 100 240 VAC N L GND 31 L2 N 32 L1 33 LINE 3 2 DC Supply Connect a dc supply to terminals 31 and 32 ensuring correct polarity The supply voltage must be 110 to 250 Vdc GND 110 250 VDC 31 L2 N 32 L1 33 LINE ...

Page 13: ...c or dc The PGR 8800 supplies a constant current constant voltage CCCV of 27 V with no load and maximum available current of 200 mA A sealed lead acid battery with a capacity between 2 and 15 Ah such as a pair of Panasonic VRLA LC R122R2P should be used and exchanged regularly according to the manufacturer s recommendations If the PGR 8800 is supplied by the backup battery and the battery voltage ...

Page 14: ... The sensors can be used together in any combination Both sensor types have LED indication of sensor health and fault location A sensor check circuit tests the sensor to verify that the sensor assembly is functioning correctly A healthy sensor will indicate two fast flashes of its internal red LED every few seconds A sensor that has detected an arc will slowly flash red The sensors connect to the ...

Page 15: ...sensor wiring and electronics If the sensor does not detect the sensor check LED a sensor fail alarm will occur the ONLINE output will change state and the ONLINE LED will begin to short flash See Section 9 The sensor includes 10 m of shielded three wire electrical cable which can easily be shortened or extended to a maximum of 50 m Use Belden 85240 or equivalent cable wire colors may vary 2 m 6 6...

Page 16: ...Y BE NECESSARYTO DISCONNECTTHE PLUG IN CONNECTOR DURING INSTALLATION 10 m 32 8 ft NOTES 1 DIMENSIONS IN MILLIMETERS INCHES UNLESS OTHERWISE STATED 2 UPTO 6 PGA LS10 PHOTOELECTRIC POINT SENSORS WITH BUILT IN CIRCUIT CHECK CAN BE CONNECTED TERMINAL FUNCTION COLOR TERMINAL 5V TERMINALTX TERMINAL RX TERMINAL 0V SUPPLY CIRCUIT CHECKTRANSMIT RECEIVE SHIELD RED WHITE YELLOW BLACK COPPER NOTE 2 FIGURE 6 P...

Page 17: ...L SURFACE NOTE 3 PANEL Ø9 0 354 PGA LS10 DRILLTEMPLATE SURFACE PANEL SURFACE Ø9 0 354 DRILLTEMPLATE SURFACE MOUNTED PGA LS10 PGA LS10 PANEL MOUNTED NOTES AND INSTALLATION 1 ALL DIMENSIONS IN MILLIMETERS INCHES 2 AFFIXTHE DRILLTEMPLATE WHERETHE SENSOR ISTO BE MOUNTED 3 MOUNTING SCREWS ARE M4 OR 8 32 4 THE PGA LS10 CAN BE SURFACE OR PANEL MOUNTED SELECT THE APPROPRIATE HOLES AND DRILLTHROUGHTHETEMPL...

Page 18: ...omponents are monitored to ensure correct operation 4 2 1 Fiber Connection The fiber is the light collecting element of the PGA LS20 and PGA LS25 It must be installed so it has line of sight to all current carrying parts In some cases this may be accomplished by following the bus bars along the back wall of the cabinets Drill holes using the included drill template and fasten the transmitter and r...

Page 19: ... is no sensor fault arc flash detection will function normally in this condition SHIELD BLACK SHIELD BLACK FIBER PGA LS20 8 m 26 2 ft PGA LS25 5 m 16 4 ft NOTES 1 DIMENSIONS IN MILLIMETERS INCHES UNLESS OTHERWISE STATED 3 THE PGA LS20 AND PGA LS25 SENSORS SHIP ASSEMBLED WITH A PLUG IN CONNECTOR IT MAY BE NECESSARYTO DISCONNECTTHE PLUG IN CONNECTOR DURING INSTALLATION BLACK SLEEVE PGA LS20 2 m 6 5 ...

Page 20: ...screw on the receiver counter clockwise until the PGR 8800 sensor indicator LED for that sensor changes to red If the LED was already flashing red in step 5 it should change to green first 8 Adjust the TRIP LEVEL setting back to the desired position 4 2 5 2 Sensor Adjustment in Small Compartments If the fiber optic sensor is used in multiple compartments of varying size the sensor must be calibrat...

Page 21: ... light on the sensor A trip will be indicated if the sensor detects the light but a trip signal will not be sent to the circuit breaker If the LED on the sensor or relay isn t indicating a trip cleaning is necessary Note that in service mode the PGR 8800 will not trip if an arc flash occurs Remember to return the PGR 8800 to online mode after testing is completed In dusty environments sensor clean...

Page 22: ...mmed delay time for the light as soon as the absolute value of the current on any phase exceeds the inhibit setting Thus the current inhibit does not add any delay to the trip if the arc is drawing current 6 2 Overcurrent Protection In addition two definite time overcurrent protection levels are provided that will trip on current detection alone Overcurrent levels can be set from 150 to 1 000 of r...

Page 23: ...imal performance For best performance select current transformers with a primary rating approximately equal to the system s rated current The PGR 8800 measures instantaneous currents and is insensitive to phasing and polarity The current sensor inputs have a burden of less than 0 25 VA at 5 A will withstand up to 75 A for 1 s and are isolated from all other terminals up to 500 Vac Ø A Ø B Ø C 5A S...

Page 24: ...41 and 42 In SERVICE mode this input does not affect the TRIP COIL output The TRIP input can also be configured to connect to the auxiliary contact of a circuit breaker to verify that the circuit breaker has tripped successfully See Appendix C The TRIP input is enabled by default 7 3 Reset The RESET input is used as a remote reset after a fault has been detected There are two RESET inputs terminal...

Page 25: ... 45 The SERVICE output signals that the PGR 8800 is being commissioned or set up The output is energized when the PGR 8800 is in service mode or is connected via USB to a PC The SERVICE output can also be configured to trip an upstream device after a local circuit breaker failure or to follow the Trip Coil output See Appendix C 8 3 Tripped The TRIPPED output consists of two contact sets A change o...

Page 26: ... pulse period delay The output is an IGBT that can carry 10 A ac or dc for five seconds The TRIP COIL output is isolated up to 1 000 Vac NOTE The TRIP COIL output is an IGBT switch There is a voltage drop of 2 4 V across the TRIP COIL output when energized See Section 14 The TRIP COIL output consists of a rectifier bridge and an IGBT The IGBT is able to switch large currents and high voltages In c...

Page 27: ...d but not all relays are being detected Off Link mode is disabled INHIBIT On red INHIBIT input is active or current sensing is inhibiting trips current not above setting Fast red flashing The PGR 8800 detects an arc light but the INHIBIT input or current sensing is preventing a trip Short red flashing Digital input circuit check failed check the wiring of the inputs or use the configuration softwa...

Page 28: ...IP button but not by an arc fault overcurrent or TRIP input unless configured to trip in service mode See Section 12 2 8 Press and hold RESET to configure the sensors See Section 13 1 Short red flashing PGR 8800 is in service mode and has detected an error The front panel LED s will provide error information Slow red flashing PGR 8800 is in the process of auto set up or firmware update Off PGR 880...

Page 29: ...system Trip Level is set too low which could lead to unintentional tripping Slow red flashing Sensor caused a trip event Press RESET to clear the trip Short red flashing Sensor check of the sensor failed check the wiring and if using a PGA LS20 ensure the small metal adjustment screw is not set to minimum sensitivity See Section 4 2 6 Off SENSOR input is inactive CURRENT SENSORS On green Current s...

Page 30: ...n online mode press the RESET button to clear a trip if trip conditions are no longer present In service mode when the RESET button is pressed for more than one second the optical sensor detection process will begin See Section 13 1 10 4 Mode Reset When MODE and RESET are pressed for more than 20 seconds a file system reset will occur This will erase the logged information 10 5 Mode Trip When MODE...

Page 31: ... the local circuit breaker The PGR 8800 Link function continuously monitors link cable break faults 11 2 Button Function When a PGR 8800 is configured for the Link function the front buttons can be shared with all modules in the system or set to apply only to the local module For example if one PGR 8800 is set to service mode and Link user interface is enabled all the linked modules will be placed...

Page 32: ... 61850 or other network type can be used for remote network connections and many other communications options TIA 485 TIA 485 PGR 8800 SERIES ARC FLASH RELAY PGR 8800 SERIES ARC FLASH RELAY PGR 8800 SERIES ARC FLASH RELAY PGR 8800 SERIES ARC FLASH RELAY Set the Modbus interface and address with the configuration software Each PGR 8800 must have a unique Modbus address See Section 12 2 9 and Append...

Page 33: ... when a PC is connected with a USB cable In service mode arc flash protection is inactive by default but can be configured to trip in service mode See Section 12 2 8 The PGR 8800 will remain in service mode until the USB cable is disconnected and the MODE button is pressed to return to online mode When connected to a PC the PGR 8800 appears as two mass storage devices and two drives will be displa...

Page 34: ...unction of the button 12 2 1 Configuration Software Tabs The configuration software is displayed in a window with eight tabs along the top of the screen Click on a tab to display the relevant configuration options General Set the date time and a general description of the relay Optical Sensors Configure optical sensors and arc detection time before tripping Current Sensors Set overcurrent and curr...

Page 35: ...ll cancel any changes made to the value before the configuration software was opened The Reset button will load the factory default for that setting 12 2 3 Default Configuration It is possible to use the basic protection features of the PGR 8800 without using the configuration software Any connected optical sensors with circuit check will be automatically detected and cause the relay to report an ...

Page 36: ...d provides the option to synchronize with the connected PC 12 2 5 Optical Sensor Settings Common Settings These settings apply to all optical sensors The arc detection time specifies the amount of time light from an arc must be detected to cause a trip Valid settings are 0 ms to 20 000 ms and the default setting is 1 ms If set to 0 ms the effective trip time is 0 8 ms If a sensor detects light app...

Page 37: ... Check this box to disable sensor check The corresponding sensor check LED will still flash if connected Change configuration Once a sensor is connected to a terminal the PGR 8800 will report an error if it is removed If a sensor is removed this allows the sensor expected status to be reset NOTE Sensor status can also be reset by placing the PGR 8800 in service mode and then pressing the RESET but...

Page 38: ...kboxes When using current sensors the signal being applied to the sensors ac or dc must be defined The module will automatically track the zero point if AC is selected The rated nominal load current is the typical current level that will be observed on the current transformer primary and is the reference for the Inhibit and Overcurrent functions The current transformer ratio must also be defined T...

Page 39: ...Current Inhibit is enabled the INHIBIT LED on the front of the PGR 8800 will be on when current is below the set point When the current is above the set point the INHIBIT LED will be off Overcurrent Protection The PGR 8800 has two definite time overcurrent set points which can be used for instantaneous short and long time overcurrent protection This feature is disabled by default The current level...

Page 40: ...see Section 7 and the inputs can be configured to be inactive when connected to COM inverted The Trip inputs can also be inhibited if enabled Otherwise a Trip input is allowed to occur regardless of the Inhibit Inputs function selection When the PGR 8800 sends a trip signal to the local circuit breaker the status of the circuit breaker can be monitored using the Trip input In the case of a local c...

Page 41: ...applied to a shunt circuit breaker or removed from an undervoltage circuit breaker is defined by the circuit breaker pulse time and can be set from 1 to 5 s An external trip voltage is applied to one side of the Trip Coil output If voltage is not present while in shunt mode the PGR 8800 will deactivate the ONLINE output and flash the Trip Coil red LED This feature can be disabled by deselecting th...

Page 42: ...it breaker fails Circuit breaker failure is detected by connecting the auxiliary contact to the PGR 8800 Trip input or by measuring the current using the current sensors or both The Service and Tripped outputs can be configured to match the Trip Coil output or to trip an upstream circuit breaker on a clearing failure The Link interface can also be used for coordinated tripping by sending a trip si...

Page 43: ...lti function communications port The port is disabled by default and can be configured as follows through the Link Interface drop down list Nothing Disable communications port Link multiple units Connect up to four PGR 8800 relays Modbus Enable remote communication using the Modbus protocol Factory test Not intended for customer use Selecting each option in the drop down list will reveal further o...

Page 44: ... trip Received Link alarm signal trips this unit If selected this option will allow the module to receive a Link alarm sent from another unit and will trip the module Link sends and receives the user interface This option will allow the module to send and receive button presses Pressing RESET on one module will reset all link enabled modules with this option selected Modules will also change mode ...

Page 45: ...rity Number of start bits 19200 Even 8 Number of stop bits controlled by parity selection Even Parity 1 Odd Parity 1 None 2 Allow writes via MODBUS is disabled by default Network Termination Since the PGR 8800 Modbus interface shares the Link interface the network is already terminated internally This limits the number of units which can be connected and the maximum length of the connection See Se...

Page 46: ...ply failure while writing to the log drive can lead to loss of data See Section 12 3 Internal Drives Configuration In addition to the hardware reset procedures outlined in Section 10 the configuration software allows for partial reset of certain modules and configuration Every parameter can be individually reset by using the Reset button associated with it see Section 12 2 2 Resetting the configur...

Page 47: ...er hardware revision number and serial number 12 3 Data Log Drive The PGR 8800 can log all significant events including trips errors and button presses By default data logging is disabled See Section 12 2 10 Once enabled the raw data is logged in a plain text file on the log drive This file can be viewed in any text editor or in the included log hta log reader Log hta requires Internet Explorer 5 ...

Page 48: ...l its internal LED turns off This should happen at approximately the same distance at which was used before the local sensor reacted The PGR 8800 LED associated with the sensor will change to solid green at the same time 6 Return to the central unit and confirm that all LED s for connected sensors are showing a solid green LED Illuminate the local sensor again to store the results 7 The system wil...

Page 49: ...D will be off 13 4 Full Operation Test Online 1 Make sure that the system is ready for test The TRIP COIL output will be tripped during this procedure 2 If necessary press MODE to switch to online mode ONLINE LED will be solid green 3 Confirm that there is a solid PGR 8800 green LED for each connected optical sensor This confirms that sensors are connected and healthy 4 Confirm that a short red fl...

Page 50: ... Time Settings 0 to 20 000 ms 0 8 ms effective minimum Trip Coil Output Type IGBT Switch Configuration Normally Open Form A UL Rating 120 240 Vac 1800 VA 0 75 A maximum continuous 125 250 Vdc 138 VA 0 75 A maximum continuous Supplemental Rating Make Carry 0 2 s 30 A Voltage Rating 24 to 300 Vac 24 to 300 Vdc Current Rating 20 A for 2 s 10 A for 5 s Control Voltage Alarm 5 V Operating Modes Shunt o...

Page 51: ... Resistive 240 Vac 3 A Resistive 30 Vdc Terminals Wire Clamping 22 12 AWG 0 14 to 2 5 mm2 conductors Current Inputs Full Scale 5 A Secondary Continuous 10 A Secondary Thermal Withstand 75 A for 1 s Burden 0 25 VA at 5 A Trip Time 1 to 20 000 ms Trip Level Overcurrent 1 150 to 1 000 of rated nominal load current Overcurrent 2 150 to 1 000 of rated nominal load current Accuracy 1 A secondary Resolut...

Page 52: ...for further information Sensors PGA LS10 PGA LS20 and PGA LS25 Type Point sensor Fiber optic sensor Detection Zone Output Electrical Cable 180 x 360 half sphere 0 35 mA Shielded 3 wire 0 5 mm2 20 AWG electrical cable 360 along fiber 0 35 mA Shielded 3 wire 0 5 mm2 20 AWG electrical cable Factory Cable Length 10 m 32 8 ft electrical cable PGA LS20 8 m 26 2 ft active 10 m 32 8 ft total 2 m shielded ...

Page 53: ...9 CE European Union EMC standards EN60255 26 Surge Withstand ANSI IEEE C37 90 1 2002 Oscillatory and Fast Transient 15 ORDERING INFORMATION PGR 8800 Certiﬁcation 0 UL C tick 1 CE C tick 0 PGA LS10 Point Sensor PGA LS202 Fiber Optic Sensor 10 m 32 8 ft total PGA LS252 Fiber Optic Sensor 8 m 26 2 ft total PGA 0031 DIN rail mounting brackets D1100 0010 Diode Logic Unit 1 See Ordering Information for ...

Page 54: ...ittelfuse will at Littelfuse s option repair replace or refund the original purchase price of a PGR 8800 that is determined by Littelfuse to be defective if it is returned to the factory freight prepaid within the warranty period This warranty does not apply to repairs required as a result of misuse negligence an accident improper installation tampering or insufficient care Littelfuse does not war...

Page 55: ...ization is accomplished by detection of an idle communication line The communication line is considered idle when no communication exists for an equivalent delay of 3 5 characters The first byte received after idle line detection is interpreted as the address byte of the next message Message bytes must be transmitted in a continuous stream until the complete message has been sent If a delay of mor...

Page 56: ...1 Byte 2 Byte 3 Byte 4 Byte 5 Byte 6 Byte 7 Byte 8 Slave Address Function Code MSB Register Address LSB Register Address MSB Number of Registers LSB Number of Registers LSB CRC MSB CRC The two byte values of starting register and number of registers to read are transmitted with the high order byte followed by the low order byte The CRC value is sent with the LSB followed by the MSB A 4 2 Write to ...

Page 57: ...s per the standard for malformed or out of range requests A 5 PGR 8800 DATABASE Appendix B contains the Modbus Registers in the Communications Database Table The table starts at register 200 and each register is 16 bits wide A 6 SPECIFICATIONS Interface Isolated TIA 485 2 wire multi drop Protocol Modbus RTU Baud Rate 1 200 to 19 200 bit s Bit Format 8 bits even or odd parity one or two stop bits M...

Page 58: ...3 Read Only 11 T1 304 40305 Light on Sensor 4 Read Only 15 T1 305 40306 Light on Sensor 5 Read Only 19 T1 306 40307 Light on Sensor 6 Read Only 23 T1 307 40308 Current on CT1 Read Only 25 26 T2 308 40309 Current on CT2 Read Only 27 28 T2 309 40310 Current on CT3 Read Only 29 30 T2 Analog Inputs Min value since last read 400 40401 Number of analog inputs on system Read Only N A 16 bit word always 9...

Page 59: ...rd always 4 1301 41302 Status of Online output Read Only 46 49 T14 1302 41303 Status of Service output Read Only 50 53 T14 1303 41304 Status of Tripped output Read Only 54 57 T14 1304 41305 Status of IGBT output Read Only 59 60 T14 Event Flags 1500 41501 Number of status flags available Read Only N A 16 bit word always 58 1501 41502 Not used Read Only N A T15 1502 41503 Sensor 1 Read Only N A T15 ...

Page 60: ...Link command setup Read Only N A T15 1544 41545 Trip button Read Only N A T15 1545 41546 Output trip momentary command Read Only N A T15 1546 41547 CB closed feedback Read Only N A T15 1547 41548 CB clearing failure Read Only N A T15 1548 41549 Current detect for CB failure Read Only N A T15 1549 41550 Currently AC powered Read Only N A T15 1550 41551 Currently DC powered Read Only N A T15 1551 41...

Page 61: ... State done Read Only N A T15 1632 41633 Trip log complete Read Only N A T15 1633 41634 Link command service Read Only N A T15 1634 41635 Link command online Read Only N A T15 1635 41636 Modbus command service Read Only N A T15 1636 41637 Modbus command online Read Only N A T15 1637 41638 Error link Read Only N A T15 1638 41639 Error task failed Read Only N A T15 1639 41640 Error power failure Rea...

Page 62: ...7 41718 Mode button Read Only N A T15 1718 41719 Trip button long press Read Only N A T15 1719 41720 Reset button Read Only N A T15 1720 41721 Reset button long press Read Only N A T15 1721 41722 Link trip Read Only N A T15 1722 41723 Link command inhibit Read Only N A T15 1723 41724 Link command trip Read Only N A T15 1724 41725 Link command reset Read Only N A T15 1725 41726 Modbus command inhib...

Page 63: ... Read Only N A T15 1755 41756 Local CB tripped via Tripped relay Read Only N A T15 1756 41757 Link alarm sent due to Light Read Only N A T15 1757 41758 Link alarm sent due to Trip Read Only N A T15 1758 41759 Link alarm sent due to Trip fault tripped Upstream Read Only N A T15 TYPES T1 16 bit word 0 1023 approx 35 lux unit T2 16 bit word 0 1023 approx 100 mA unit T3 Reading 0 Not detected 1 Detect...

Page 64: ...ected This configuration is described in Section C 2 2 If the unit is configured as a stand alone device the Service and Tripped output relays can be programmed to trip an upstream circuit breaker See Section C 1 4 C 1 1 Circuit Breaker Feedback Detection An available auxiliary contact in a circuit breaker can be used to provide feedback of the main contact positions The PGR 8800 trip inputs T1 or...

Page 65: ...rcuit breaker tripped by an upstream PGR 8800 connected via Link interface 1 40 1 40 82 ms C 1 4 Relay Output For smaller systems one of the relay outputs can be configured to trip the upstream circuit breaker directly The relay outputs are rated for pilot duty B300 and will trip most circuit breakers See Section C 2 1 for a programming and wiring example C 1 5 Link Output The Link feature can be ...

Page 66: ...onfiguration shown below The configuration software hides the extra settings associated with Coordinated Tripping as the feature is not yet enabled C 2 1 Single PGR 8800 Configuration Figure C 1 shows an incoming feeder with a circuit breaker a bus bar and a zone protected with a PGR 8800 All sensors are downstream of the circuit breaker but the upstream circuit breaker can be tripped if a local c...

Page 67: ...ensor Sensor Sensor FIGURE C 1 Single PGR 8800 Configuration In this application a circuit breaker with an auxiliary contact provides a trip input signal The configuration software displays two warnings to configure a digital input as a feedback signal from the circuit breaker auxiliary contact and to configure a relay output to trip an upstream circuit breaker In the Tripped Output section select...

Page 68: ...so possible to use the Service Output to trip the upstream circuit breaker On the Digital Inputs tab set the Trip Input Main function to Circuit breaker feedback Select CB is closed when low switch closed When Trip Input T1 or T2 terminal 41 and 42 respectively is connected to Common terminal 45 the monitored circuit breaker is determined to be closed This will remove the warning message and the c...

Page 69: ...ttelfuse com 2012 Littelfuse 69 82 Ensure the delay time for the local circuit breaker is set correctly for the circuit breaker type The default is a 2 cycle circuit breaker delay See Section C 1 3 2 for instructions on how to determine the circuit breaker operating time ...

Page 70: ...p 24 24 Link Sensor Sensor Upstream PGR 8800 Trip Coil Link Sensor Link Bus Auxiliary Contact Trip Input C B Feedback Clearing Failure Sent through Link FIGURE C 2 Dual PGR 8800 Configuration using Link Interface The local circuit breaker auxiliary contact feedback is configured as in Section C 2 1 Configure the local PGR 8800 to use the Link Interface The unit address must be unique and the numbe...

Page 71: ...no effect as the local PGR 8800 is not configured to receive the Link alarm The LINK cable wires must be connected to both units using terminals 37 and 38 The maximum length and cable type is described in Section 11 C 2 3 Single PGR 8800 Configuration with Current Sensor Input The single line diagram in Fig C 3 shows a local circuit breaker that does not have an available feedback auxiliary contac...

Page 72: ...Sensor Input NOTE In this application it is important that the current sensors are placed so that they only monitor current flowing through the local circuit breaker section Otherwise the upstream circuit breaker could trip even though the local circuit breaker cleared the fault NOTE It is critical for the correct function of this application that three current sensors are connected In this case t...

Page 73: ...ch has not yet been configured Select the Detect clearing failure by current checkbox Rated nominal load current and CT transformation ratio should be set correctly The rest of the setup does not influence the clearing failure function The relay output is configured as described in Section C 2 1 The warning message will disappear after selecting an output ...

Page 74: ...l circuit breaker failure Local PGR 8800 Trip Busbar to Other Zones Incoming Upstream Circuit Breaker Local Circuit Breaker Trip Coil Trip 24 24 Link Sensor Sensor Upstream PGR 8800 Trip Coil Link Sensor Link Bus Clearing Failure Sent through Link 5A Secondary Current Sensors FIGURE C 4 Dual PGR 8800 Configuration using Link Interface and Current Sensor Input Configure clearing failure as in Secti...

Page 75: ...set correctly The rest of the setup does not influence the clearing failure function Configure the local PGR 8800 to use the Link Interface The unit address must be unique and the number of linked units in the system must be configured Select Clearing Failure to allow the PGR 8800 to send the Link alarm signal to the upstream PGR 8800 The Received Link alarm signal trips this unit is not selected ...

Page 76: ...nnected to both units using terminals 37 and 38 The maximum length and cable type is described in the Section 14 C 2 5 Configuration of Multiple Inputs and Outputs It is possible to combine both input and output methods For example it is possible to use both the current sensor inputs and a circuit breaker auxiliary signal to detect a clearing failure The relay will send the upstream trip signal if...

Page 77: ... 24 Incoming Circuit Breaker D1100 Manual Trip 24 Incoming Circuit Breaker 24 Fig C 5 Tripping Common Upstream Circuit Breaker from Several Zones using D1100 Fig C 5 shows two incoming feeders and a tie breaker Each incoming circuit breaker trip coil is connected to an independent PGR 8800 through a D1100 Diode Logic Unit The tie breaker trip coil is also connected to the trip coil of each PGR 880...

Page 78: ...sabled Change configuration No change No change No sensor expected Sensor expected Sensor 2 Sensor description Sensor 2 Ignore sensor check errors Disabled Enabled Disabled Change configuration No change No change No sensor expected Sensor expected Sensor 3 Sensor description Sensor 3 Ignore sensor check errors Disabled Enabled Disabled Change configuration No change No change No sensor expected S...

Page 79: ...rent 2 Protection if enabled Trip on current above 150 150 1 000 of rated current Time delay 1 500 20 000 ms DIGITAL INPUTS Inhibit Inputs Function Inhibit when low switch closed Inhibit when low switch closed Inhibit when low with circuit check Inhibit when not low switch open Disabled Trip Inputs Main function Trip input Trip input Circuit breaker feedback Disabled Function with Trip Input main ...

Page 80: ...ut Trip upstream circuit breaker on clearing failure Tripped Output Tripped output function Indicate that the unit tripped Indicate that the unit tripped Follow trip coil output Trip upstream circuit breaker on clearing failure COMMUNICATIONS Link Interface Is used for Nothing Nothing Linking multiple units MODBUS Link Configuration if enabled Unit address 1 1 4 Unit address Number of linked units...

Page 81: ... AND SETTINGS MIN DEFAULT MAX UNIT PROGRAM SELECTION Internal Drives Reset configuration drive to factory default Disabled Enabled Disabled Reset log drive to factory default Disabled Enabled Disabled Configuration Reset configuration to factory defaults Disabled Enabled Disabled Notes 1 Firmware reference 1 03 08 ...

Page 82: ...PGR 8800 Arc Flash Relay Rev 2 Pub PGR 8800 M December 14 2012 www littelfuse com 2012 Littelfuse 82 82 This page left intentionally blank ...

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