Eaton Cutler-Hammer Digitrip 3000, Instructions For Installation, Operation And Maintenance

Page 1: ...I B 17555C Effective November 1999 Supersedes I B 17555A dated March 1999 Instructions for Installation Operation and Maintenance of the Cutler Hammer Digitrip 3000 and Digitrip 3030 Protective Relay...

Page 2: ...l Testing 10 2 1 6 Communications 11 2 2 Protective Relay Hardware 11 2 2 1 Front Operations Panel 11 2 2 2 Rear Access Panel 14 2 2 3 External Hardware 16 2 3 DT3000 and DT3030 Specifications and Tes...

Page 3: ...A1 3 0 Installation A1 3 1 Panel Preparation A1 3 2 Digitrip 3001 Drawout Relay Parts List A2 3 3 Mounting the Drawout Outer Case A2 4 0 Wiring and Setup A3 5 0 Application Considerations A6 6 0 Draw...

Page 4: ...tion Diagram for Typical Ground Zone Selective Interlocking 34 5 1 Cutout Dimensions Inches 35 5 2 Digitrip 3000 Protective Dimensions Inches 36 7 1 Inverse Time Overcurrent Phase I4T Curves SC 5390 9...

Page 5: ...tive Interlocking Connection Diagram A6 B 1 Digitrip 3000 with DSPS B2 B 2 Digitrip 3010 3020 Dimensions Inches B5 B 3 Digitrip 3010 3020 Typical Wiring Diagram B7 B 4 Digitrip 3010 3020 Protective Re...

Page 6: ...Characteristic for Ground Element 8 2 4 Miscellaneous Settings 9 2 5 Factory Set Defaults 10 3 1 Digitrip 3000 Curve Shapes 19 3 2 Digitrip 3000 Display Messages 29 5 1 Digitrip 3000 Dip Switch Setti...

Page 7: ...lation application or maintenance activity a Cutler Hammer representative should be contacted Notes 1 Additional product specifications and information in Appendix A 2 Additional product specification...

Page 8: ...IN ADDITION CAU TIONS ARE ALL UPPER CASE AND BOLDFACE CAUTION COMPLETELY READ AND UNDERSTAND THE MATE RIAL PRESENTED IN THIS DOCUMENT BEFORE ATIEMPTING INSTALLATION OPERATION OR APPLI CATION OF THE EQ...

Page 9: ...e pendently programmed over a range of 5 5 to 5000 5 Refer to Table 2 4 for all available CT ratio settings Protective functions are also configured by using the pushbuttons on the faceplate of the re...

Page 10: ...tely Inverse Very Inverse Extremely Inverse lEC Curves 4 shapes per IEC 255 3 IEC A Moderately Inverse IEC B Very Inverse IEC C Extremely Inverse IEC D Definite Time The ground element of Digitrip 300...

Page 11: ...Net Monitor and Control System The protocol permits a remote master computer to perform 1 Interrogation of relay data 2 Execution of circuit breaker Close and Trip commands 3 Reset of the relay after...

Page 12: ...Short Delay and Instanta neous settings using In CT Rating In 1200A Pickup Setting 1 5 Pickup amps 1 200 1 5 1800A Example ANSI and lEC curves using Ipu CT Rating 1200A Ipu Pickup Current 1800A CT Ra...

Page 13: ...0 175 0 200 0 225 0 250 0 275 0 300 0 325 0 350 0 375 0 400 0 425 0 450 0 475 0 500 0 525 0 550 0 575 0 600 0 625 0 650 0 675 0 700 0 725 0 750 0 775 0 800 0 825 0 850 0 875 0 900 0 925 0 950 0 975 1...

Page 14: ...5 0 250 0 275 0 300 0 325 0 350 0 375 0 400 0 425 0 450 0 475 0 500 0 525 0 550 0 575 0 600 0 625 0 650 0 675 0 700 0 725 0 750 0 775 0 800 0 825 0 850 0 875 0 900 0 925 0 950 0 975 1 00 10 0 05 SEC 1...

Page 15: ...In After the 10 cycle period has passed the discriminator will no longer be functional It becomes functional again only when the breaker opens and then is reclosed Ground Fault After the phase instant...

Page 16: ...roduces a selected level of internal test current to simulate an over load or short circuit It checks proper functioning of the relay and verifies that curve settings have been set up correctly The in...

Page 17: ...ampere demand current Reset applies to both normal operations and integral testing If the unit is in the auto reset mode as set by DIP switch 9 on the back of the unit the trip relays and the trip al...

Page 18: ...I B 17555C Effective November 1999 Page 12 Fig 2 1 Typical Communications Wiring Diagram...

Page 19: ...e specific message is determined by the color and a constant on or blinking operation Several of the LEDs are bi colored and can be lit green or red Operational LED The Operational LED at the top of t...

Page 20: ...ode Display Windows Two windows are used to display all of the relay s data setpoints and messages One window is located in the upper portion of the relay s faceplate and is labeled RMS Amperes A seco...

Page 21: ...is depressed A RESET COMMAND can be sent to the Digitrip 3000 by a master computer to remotely reset the Digitrip 3000 Auto Reset DIP Switch S9 ON In this mode the Trip Instantaneous contacts TB2 12...

Page 22: ...on the pro tection off alarm relay The contacts change state when nominal control power is applied to the relay and no inter nal errors are detected Terminals 12 and 13 are a NO configurable contact...

Page 23: ...d 85 of Long Delay or Inverse Time Overcurrent Setting OUTPUT TRIP CONTACTS Trip OC Comm Trip Inst Comm Close Momentary Make 30A ac dc for 0 25 sec Break 0 25A 250Vdc Break 5A 120 240Vac Continuous 5A...

Page 24: ...e 40 to 70 Degrees Celsius ADDITIONAL TESTS Dielectric Strength Current Inputs 3 000Vac for 1 minute Phase to Phase Seismic Test Meets requirements for UBC and California Building Code Zone 4 ZPA 3 5...

Page 25: ...ections 1 and 2 The operating characteristics of the relay are graphically rep resented by time current characteristic curves shown in Figure 3 2 As shown in Figure 3 1 the ANSI and IEC Curve Shapes a...

Page 26: ...p relay is energized Pickup set tings can be adjusted from 0 20 to 2 20 times In Refer to Tables 2 2 and 2 3 for a complete set of available set tings Figure 3 3 graphically illustrates how the Invers...

Page 27: ...I B 17555C Effective November 1999 Page 21 Fig 3 1 Digitrip 3000 Typical Wiring Diagram...

Page 28: ...tripping action based on a selected low value for Inverse Time Over current Time Multiplier The expected tripping action will not take place at the expected time if the Short Delay Time selected is in...

Page 29: ...illustrated Refer to Table 2 3 for the available ground fault settings When programming ground fault protection keep in mind that if NONE is selected the ground fault protection is disabled Even if th...

Page 30: ...November 1999 Page 24 Fig 3 4 Typical Inverse Time Overcurrent Pickup Horizontal Movement Fig 3 5 Typical Time Multiplier Adjustment I 2T Response Fig 3 6 Short Delay Setting Adjustment Fig 3 7 Short...

Page 31: ...breaker is closed during a pro gramming session and DIP Switch S2 is set to off the unit will exit the Program Mode without saving any new setpoint values and the message ERR will appear in the Set ti...

Page 32: ...t Settings pushbutton is pressed and released the Phase and Instantaneous LEDs remain on and the unit will now offer a choice of whether to turn the discriminator option on or off Refer to Section 2 1...

Page 33: ...ettings pushbutton boxes are used to highlight what displays will be activated and observed as the relay moves through the programming steps 3 3 4 TEST MODE The Test Mode is not intended for live prim...

Page 34: ...the following pushbuttons located on the front panel Select Tests Test Raise and Lower and Select Settings 3 4 1 ADDRESS AND BAUD RATE SETTINGS To enter the mode that permits changing the device Addre...

Page 35: ...RGM Entered the program mode LDT Digitrip 3000 tripped via the inverse time overcurrent function SDT Digitrip 3000 tripped via the short delay function INST Digitrip 3000 tripped via the instantaneous...

Page 36: ...I B 17555C Effective November 1999 Page 30 Fig 3 11 Local Programming Sequence Flow Chart...

Page 37: ...I B 17555C Effective November 1999 Page 31...

Page 38: ...r When a Digitrip 3000 initiates a trip signal the zone inter locking signal stays active for an additional 175 millisec onds Therefore if a downstream Digitrip 3000 is zone interlocked to an upstream...

Page 39: ...I B 17555C Effective November 1999 Page 33 Fig 4 1 Connection Diagram for Typical Phase Zone Selective Interlocking...

Page 40: ...I B 17555C Effective November 1999 Page 34 Fig 4 2 Connection Diagram for Typical Ground Zone Selective Interlocking...

Page 41: ...hen mak ing the cutouts and placing the holes for the mounting screws In particular the horizontal dimensions between the center of the mounting holes and the vertical edge of the cutout must be withi...

Page 42: ...ure sad dle screws 3 All contacts are shown in their de energized position Note that the Protection Off Alarm Relay is energized when control power is applied 4 The Digitrip 3000 comes with zone inter...

Page 43: ...put contacts COMMUNICATIONS CLOSE TRIP INST AND TRIP OC COMMUNICA TIONS have a 2000 volt ac breakdown rating for 1 minute between open contacts The relays trip alarm and protection off alarm have a 10...

Page 44: ...T THE CUR RENT SOURCE AND CONTROL POWER SUPPLY BEFORE TOUCHING THE COMPONENTS ON THE REAR OF THE DIGITRIP 3000 PROTECTIVE RELAY 6 3 REPLACEMENT Follow these procedural steps to replace the Digitrip 30...

Page 45: ...re was an Error While in the Test Mode Make Sure DIP switch S2 is in Correct Position More than 0 1 Per Unit of Current Cannot Flow While in Test Mode Table 5 1 Paragraph 3 3 3 RAM Appears in Settings...

Page 46: ...Select Trip Test while in the Test Mode Check Wiring from Protective Relay to Circuit Breaker Trip Coil Check that Circuit Breaker has Source of Tripping Power Figure 3 1 Figure 3 1 Paragraph 3 3 3 Wi...

Page 47: ...ive November 1999 Page 41 SECTION 7 TIME CURRENT CURVES 7 1 DIGITRIP 3000 INVERSE TIME OVERCURRENT CURVES The specific time current curves applicable to the Digitrip 3000 Protective Relay are included...

Page 48: ...I B 17555C Effective November 1999 Page 42 Fig 7 1 Inverse Time Overcurrent Phase I4T Curves SC 5390 92B...

Page 49: ...I B 17555C Effective November 1999 Page 43 Fig 7 2 Inverse Time Overcurrent Phase I2T Curves SC 5391 92B...

Page 50: ...I B 17555C Effective November 1999 Page 44 Fig 7 3 Inverse Time Overcurrent Phase IT Curves SC 5392 92B...

Page 51: ...I B 17555C Effective November 1999 Page 45 Fig 7 4 Inverse Time Overcurrent Phase Flat Curves SC 5393 92B...

Page 52: ...I B 17555C Effective November 1999 Page 46 Fig 7 5 Short Delay Phase Curves SC 5394 92B...

Page 53: ...I B 17555C Effective November 1999 Page 47 Fig 7 6 Inverse Time Overcurrent Short Delay Curves SC 5395 92B...

Page 54: ...I B 17555C Effective November 1999 Page 48 Fig 7 7 Instantaneous Curves SC 5396 92B...

Page 55: ...I B 17555C Effective November 1999 Page 49 Fig 7 8 Inverse Time Overcurrent Ground I4T Curves SC 5399 92B...

Page 56: ...I B 17555C Effective November 1999 Page 50 Fig 7 9 Inverse Time Overcurrent Ground I2T Curves SC 5400 92B...

Page 57: ...I B 17555C Effective November 1999 Page 51 Fig 7 10 Inverse Time Overcurrent Ground IT Curves SC 5401 92B...

Page 58: ...I B 17555C Effective November 1999 Page 52 Fig 7 11 Inverse Time Overcurrent Ground Flat Curves SC 5402 92B...

Page 59: ...I B 17555C Effective November 1999 Page 53 Fig 7 12 Short Delay Ground Curves SC 5403 92B...

Page 60: ...I B 17555C Effective November 1999 Page 54 Fig 7 13 ANSI Moderately Inverse Curves SC 6685 96...

Page 61: ...I B 17555C Effective November 1999 Page 55 Fig 7 14 ANSI Very Inverse Curves SC 6686 96...

Page 62: ...I B 17555C Effective November 1999 Page 56 Fig 7 15 ANSI Extremely Inverse Curves SC 6687 96...

Page 63: ...I B 17555C Effective November 1999 Page 57 Fig 7 16 IEC A Moderately Inverse Curves SC 6688 96...

Page 64: ...I B 17555C Effective November 1999 Page 58 Fig 7 17 IEC B Very Inverse Curves SC 6689 96...

Page 65: ...I B 17555C Effective November 1999 Page 59 Fig 7 18 IEC C Extremely Inverse Curves SC 6690 96...

Page 66: ...I B 17555C Effective November 1999 Page 60 Fig 7 19 IEC D Flat Curves SC 6691 96...

Page 67: ...I2T 4 14T I4T 4 K 3 for phase 1 for ground FLAT 0 Where I Input Current Ipu Pickup Current Setting D Time Multiplier Setting P A B ANSI MOD Moderately Inverse 0 02 0 0515 0 114 D 0 1 5 0 step of 0 1 A...

Page 68: ...I B 17555C Effective November 1999 Page 62...

Page 69: ...ings The terminal blocks feature a 2 stage disconnect opera tion Removal of the DT3001 Inner Chassis will discon nect the trip circuits and short the ct secondaries before the unit control power is di...

Page 70: ...the panel so that the case studs project through their respective holes 3 3 4 The plastic outer flange is seated on the front of the panel and is attached to the top center and bottom studs that prot...

Page 71: ...lso be used to accommodate the wires 4 2 All contacts are shown in the de energized position NOTE The Protection Off Alarm Relay is energized when control power is applied and the DT3001 is operating...

Page 72: ...C Effective November 1999 Page A4 Fig A 4 DT3001 Typical AC or DC Schematic Fig A 5 DT3001 Typical AC External Current Connection with Zero Sequence Ground CT Fig A 6 DT3001 Typical Residual Ground Co...

Page 73: ...I B 17555C Effective November 1999 Page A5 Fig A 7 DT3001 Typical Wiring Diagram...

Page 74: ...d be 250 feet Route separate from power conductors 2 Jumper on devices in last zone used to provide time delay per inverse time overcurrent or short delay time setting If jumper is not used the Digitr...

Page 75: ...ther IQ product CAUTION THE DT3001 INNER CHASSIS MUST BE FULLY INSERTED AND FULLY LATCHED IN TO ITS DRA WOUT OUTER CASE FOR PROPER OPERATION OF THE DEVICE When the unit is seated properly the quick re...

Page 76: ...I B 17555C Effective November 1999 Page A8...

Page 77: ...romechanical relay or an electronic self powered relay The ct powering capability is critical for tripping if the ac auxiliary supply or its fuses fail prior to the fault or if the fault itself collap...

Page 78: ...1000 4 3 1997 Radiated EM Field at 10V m IEC 255 22 3 1989 Radiated EM Field at 10V m IEC 801 3 1984 Radiated EM Field at 10V m EN 61000 4 4 1995 Fast Transient Burst at 2kV IEC 255 22 4 1992 Fast Tra...

Page 79: ...Humidity 0 to 95 Relative Humidity Non Condensing Storage Temperature 40 to 70 Degrees Celsius COMMUNICATIONS PowerNet Compatible Built in INCOM Data Rate is 1200 or 9600 Baud Set INCOM address from...

Page 80: ...will operate with 3 phase currents in a tripped state with currents greater than 1 2 per unit or 6A rated secondary current NOTE There will be no effect to the DT3000 relay trip time accuracy when th...

Page 81: ...I B 17555C Effective November 1999 Page B5 Fig B 2 Digitrip 3010 3020 Dimensions Inches...

Page 82: ...VITY AND CT RATIOS For scenarios where the relay must trip with loss of ac power the main ct secondary current must be greater than 9 amperes for a single phase to ground fault or 6 amperes for a thre...

Page 83: ...I B 17555C Effective November 1999 Page B7 Fig B 3 Digitrip 3010 3020 Typical Wiring Diagram...

Page 84: ...99 Page B8 Fig B 4 Digitrip 3010 3020 Protective Relay Typical AC Schematic Fig B 5 Digitrip 3010 3020 Typical AC External Current Connection with Zero Sequence Ground CT Fig B 6 Digitrip 3010 3020 Ty...

Page 85: ...od reliability The Digitrip 3000 with DSPS can help to reduce ct satu ration problems The current powering transformers have been designed to present lower burden than most self powered relays especia...

Page 86: ...10 15 20 25 30 35 40 45 50 CT Current Amps CT Burden Z Ohms Total Burden With Vac 3 Phase I Total Burden No Vac 3 Phase I Total Burden With Vac 1 Phase I Total Burden No Vac 1 Phase I DT3000 With Dual...

Page 87: ...y go away if the load current is small 7 1 7 The ac voltage drop across the ct input should rise to a larger value at least twice as large as when ac was applied and maybe approaching 0 5 volt as show...

Page 88: ...1 00 1 25 0 5 10 15 20 25 30 CT Current Amps CT Voltage Drop Volts CT Voltage Drop With Vac 3 Phase I CT Voltage Drop No Vac 3 Phase I CT Voltage Drop With Vac 1 Phase I CT Voltage Drop No Vac 1 Phase...

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Page 92: ...OF FITNESS FOR A PAR TICULAR PURPOSE OR MERCHANTABILITY OR WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE ARE MADE REGARDING THE INFORMATION RECOMMENDATIONS AND DESCRIP TIONS CONTAINED H...