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Страница 1: ...Table of Contents System Power Factor Remote Remote Closing and Tripping of Circuit Breakers 27 Remote Resetting of the Trip Unit References Digitrip RMS Trip Assemblies Type DS Low Voltage AC Power C...
Страница 2: ...ilt in over temperature protection feature factory set to trip the breaker if the chip temperature exceeds 95 C If over temperature is the reason for the trip the Long Delay Time LED will light RED an...
Страница 3: ...d Figs 1 and 4 continues to supply power to the LEDs To check the sta tus of the battery see Section 4 5 power derived through current sensors integrally mounted in the circuit breaker The Digitrip RM...
Страница 4: ...the power relay module NOTICE 1 1 3 Discriminator High Initial Current Release For Types LS and LSG Trip Units only When the Digitrip RMS 810 Trip Unit is not equipped with an adjustable instantaneous...
Страница 5: ...s installed Since the specific values vary for different cir cuit breaker types and ratings refer to time current curves listed in Section 6 for the values applicable to your breaker If breaker trips...
Страница 6: ...aw 08 Setting i l s Sec i t 6 Short 3 ta Seiusg Srsake trips AT 6 test km Breaker TPJ AT 6T It hems i St rt 9 te tune See T l tel Trsji Settnty Rm ir tied 185as te KP CJW Fig 3 1 Digitrip RMS 810 Typ...
Страница 7: ...g signal from another breaker F that is tripping but the fault current level is less than the setting for breaker M the presence of the Zone Interlocking signal from the other breaker F can not cause...
Страница 8: ...t breakers 2 of Current Sensor Rating for Type DS circuit breakers WAVE SHAPE Sinusoidal ref IEC 947 2 Appendix F Harmonic content included for True RMS reading 1 2 1 2 Instrumentation Power and Energ...
Страница 9: ...ss and release the STEP push button to clear the reason for trip message and the display window will then show the values of current at the time of trip See notes 1 2 and 3 under Table 3 The values re...
Страница 10: ...and the cause of trip is displayed Trip Unit test will begin as soon as you release push to test button and the display shows the elapsed time of test TEST and trip breaker is ready to begin 4 0 TEST...
Страница 11: ...is often desirable to choose different levels of ln for different cir cuit breakers of the same frame rating An assortment of rating plugs with different ln values is available for each breaker frame...
Страница 12: ...aker reaches 20 40 if single phase current of the frame current sensor rating the Trip Unit will trip the breaker again As indicated in Figs 2 and 4 a back up battery is pro vided to maintain the mode...
Страница 13: ...VAC control power is lost to the Power Relay Module the LOCKOUT after trip will reset and the breaker can be closed again However the cause of trip bit will remain set in the Digitrip s non volatile m...
Страница 14: ...rrent exceeding the pre selected value the LED in the appropriate segment of the simulated Time Current curve will light RED indi cating the reason for the TRIP The available settings along with the i...
Страница 15: ...h on the rating plug label see Fig 4 and on the applicable LS Time Current Curve referenced in Section 6 Long Delay Time Sec at 6 x lr Available Settings i l 2 4 7 10 12 15 20 24 Seconds at 6 Times Lo...
Страница 16: ...0 250 63 75 88 125 150 188 250 O c 150 300 75 90 105 120 180 225 300 w 400 100 120 140 160 200 240 300 400 LU Fig 8 4 Short Delay Time Settings 600 630 800 1000 150 180 210 240 300 360 450 600 315 473...
Страница 17: ...o tection the Digitrip RMS 810 Trip Unit also has a Ground Time Memory GTM function which serves to protect loads in the event of a sputtering arc to ground Without the GTM function the Trip Unit woul...
Страница 18: ...IT IS IN SERVICE AND CARRYING LOAD CURRENT WHETHER DONE BY LOCALLY OR BY REMOTE MEANS IS NOT RECOMMENDED ANY TRIPPING OPERATION WILL CAUSE DISRUP TION OF SERVICE AND POSSIBLE PERSONAL INJURY RESULTIN...
Страница 19: ...timer will be running in the display window and then Quickly press and release the TRIP RESET push button before the Trip Unit operates Now the LTM will be reset 1 CAUTION A SETTING OF EITHER 6T OR G...
Страница 20: ...TM resets quickly it will not normally affect ground fault test results but if Ground Fault tests are repeated quickly the GTM can make the breaker appear to trip too soon Note To STOP a TEST initiate...
Страница 21: ...S 810 Trip Unit is its ability to communicate both informa tion and control signals via the Cutler Hammer Inc pro prietary INtegrated COMmunications INCOM Local Area Network LAN INCOM interconnects mi...
Страница 22: ...IP MODEL 810 TRIP UNITS AND TRIP UNITS PROVIDED AS A PART OF NEW CIRCUIT BREAKERS WILL ALREADY CONTAIN A FAC TORY SET BAUD RATE AND ADDRESS WHICH IN GENERAL WILL NOT APPLYIO YOUR NETWORK FOR PROPER CO...
Страница 23: ...WERE SWITCHED THE INCOM COMMUNICATIONS SYSTEM WILL BE CONFUSED AND THE INFORMA TION COMING FROM THE 001 TRIP UNIT AS WELL AS THE COMMANDS GOING TO THE 001 TRIP UNIT WILL ACTUALLY INVOLVE THE 100 CIRC...
Страница 24: ...at last breaker See T D 17 513 Fig 11 1 INCOM with Remote Master Computer Assemblies Electronic Monitor AEM Twisted Pair No 18 AWG See Section 5 5 for cable specifications See View Cut off Shield at D...
Страница 25: ...1200 Baud when applied on the same network with Digitrip RMS 700 and 800 Trip Units See Section 5 1 item 5 5 5 INCOM Network Interconnections INCOM sends bursts of data on a 92 to 115 2 kHz car rier a...
Страница 26: ...ystem to display any of the information that is listed in Table 5 Table 3 Table 3 Table 3 DISC DISCriminator Trip EXTT EXTernal Trip GNDT GrouND Trip X X XXX XXX XXX XXX X X XXX Table 3 Table 3 Table...
Страница 27: ...RMS 810 Trip Unit can respond to com mands from the remote master computer to TRIP the circuit breaker remotely and furthermore if the circuit breaker has been equipped with the applicable optional e...
Страница 28: ...Instructions for Digitrip RMS 610 Trip Unit Instructions for Digitrip RMS 810 Trip Unit T D 17 531 LIST OF FIGURES 6 2 Type DS Low Voltage AC Power Circuit Breakers I B 33 790 1 Page Figure Instructi...
Страница 29: ...y in the event that the feeder breaker Z2 would not clear the fault the main breaker Z1 will clear the fault in 0 5 s as above 30 LIST OF TABLES Page Table 1 Digitrip RMS 810 Protection Functions 2 Di...
Страница 30: ...N c Short Delay Output Signal to Higher Level Zone Short Delay Input Signal from Lower Level Zone Ground Output Signal to Higher Level Zone Ground Input Signal from Lower Level Zone SO i 0 1 Sec 100 A...
Страница 31: ...CORRECTED PRIOR TO RECLOSING THE CIRCUIT BREAKER SHOULD IT NOT BE CORRECTED AND THE CIRCUIT BREAKER BE RE CLOSED TOO QUICKLY THEN BECAUSE OF THE INHERENT LONG TIME MEMORY FUNCTION SEE NOTE IN SECTION...
Страница 32: ...urn OFF and the Remote Alarm Con tacts of the signal relay in the Power Relay Module will reset open Following any corrective actions and or inspec tions of the circuit breaker and related equipment r...
