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I.L.  29-8858 

9.0  REFERENCES 

9.1  Digitrip RMS Trip Assemblies 

I.L. 29-885 

I.L. 29-886 

I.L. 29-888 

Instructions for Digitrip  RMS 510 Trip  Unit 

Instructions for Digitrip  RMS 610 Trip  Unit 

Instructions for Digitrip  RMS 810 Trip  Unit 

9.2  Type OS Low-Voltage AC Power Circuit Breakers 

LB. 33-790-1 

Instructions for Low-Voltage Power Circuit 
Breakers Types DS and DSL 

LB. 33-790-1 

AD 32-870 

SC-5619-93 

SC-5620-93 

SC-5621-93 

508B508 

Supplement B to Digitrip RMS Trip Units 

Typical Time-Current Characteristic 

Curves for Types DS and DSL Circuit 

Breakers 

Instantaneous  (I) 

Long Delay and  Short Delay  (LS) 

Ground  (G) 

Connection Diagram for Type DS Circuit 
Breakers 

9.3 Type SPB Systems Pow-R Breakers 

I.L. 29-801 

Instruction for the Systems Pow-R Breaker 
and  Drawout Mechanism 

I.L. 29-849 

AD 29-863 

SC-5623-93 

SC-5624-93 

SC-5625-93 

I.S. 15545 

Supplementary Instructions for the Sys­
tems Pow-R Breaker used with the Digitrip 

RMS Trip  Units 

Typical Time-Current Characteristic 

Curves for Type SPB Systems Pow-R 

Breaker 

Instantaneous  (I) 

Long Delay and  Short Delay  (LS) 

Ground  (G) 

SPB Master Connection Diagram 

9.4 Series C® R-Frame Molded Case Circuit Breakers 

29C106 

29C107 

29C713 

AD 29-167R 

SC-5626-93 

SC-5627-93 

SC-5628-93 

Effective May  1997 

Frame Book 

Frame Instruction Leaflet 

Supplementary  Instructions  for Series C® 

R-Frame used with the Digitrip  RMS Trip 
Units 

Typical Time-Current Characteristic 

Curves for  R-Frame Circuit Breakers 

Instantaneous  (I) 

Long Delay and  Short Delay  (LS) 

Ground  (G) 

Page  15 

I.L. 29C714 

Master Connection Diagram for Series  C® 

R-Frame Circuit Breaker 

APPENDIX A ZONE INTERLOCKING 

Assume 

a ground fault of 

2000 

Amperes occurs and 

refer to Fig A.1. 

CASE 1 :   There is no Zone Selective Interlocking. 

(standard time delay coordination is used) 

Fault 

The branch breaker will trip clearing the fault in 
0.1 s. 

Fault 

The feeder breaker will trip clearing the fault in 

0.3 

s. 

Fault 1 

The breaker will trip clearing the fault in 

0.5 

s. 

CASE 2:  There is Zone  Selective  Interlocking 

Fault 

The branch breaker trip unit will initiate the trip in 

0.03 

s to clear the fault and Z3 will send an inter­

locking signal to the Z2 trip unit;  and Z2 will send 
an interlocking signal to Z1. 

Z1 and Z2 trip units will begin to time out,  and in 
the event that the branch breaker Z3 would not 
clear the fault,  the feeder breaker Z2 will clear the 
fault in 

0.3 

s (as above). Similarly,  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). 

Fault 

The feeder breaker trip unit will initiate the trip in 

0.03 

s to clear the fault;  and Z2 will send an inter­

locking signal to the Z1 trip unit. Z1 trip unit will 
begin to time out,  and 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). 

Fault 1 

There are no interlocking signals. The main 
breaker trip unit will initiate the trip in 

0.03 

s. 

Figure A.2 presents a Zone Selective  Interlocking con­
nection diagram for a system with two main breakers 
from incoming sources and a bus tie breaker. Note the 
blocking diode D1 is needed so that the feeder breakers 
can send interlocking signals to both the main and tie 
breakers,  without having the tie breaker send itself an 
interlocking signal. 

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Содержание Digitrip RMS 510 LI

Страница 1: ...IS ENERGIZED DEATH OR SEVERE PERSONAL INJURY CAN RESULT FROM CONTACT WITH ENERGIZED EQUIP MENT ALWAYS VERIFY THAT NO VOLTAGE IS PRESENT BEFORE PROCEEDING WITH THE TASK AND ALWAYS FOLLOW GENERALLY ACCE...

Страница 2: ...S Digitrip Type LI LS and LSI trip units can be applied on 3 pole or 4 pole circuit breakers for protection of the neutral circuit IF the circuit breaker is wired and MARKED for NEUTRAL PRO TECTION Re...

Страница 3: ...rotection U Fig 2 2 Long Time Short Time Protection LS Effective May 1997 Fig 2 3 Long Time Short Time Instantaneous Protection LSI Page 3 Fig 2 4 Long Time Instantaneous Ground Protection UG w w w E...

Страница 4: ...me Instantaneous Ground Protection LS G The Digitrip RMS 510 Trip unit provides three basic func tions Protection Information and Testing A typical trip unit and rating plug are illustrated in Fig 1 I...

Страница 5: ...through the circuit breaker exceeds approximately 10 of the frame current sensor rating the green LED will flash On and Off once each second to indicate the trip unit is energized and operating prope...

Страница 6: ...tream breaker s trip unit to the input terminals of the upstream breaker s trip unit For specific instructions see the applicable connection dia grams for your breaker listed in Section 9 0 I L 29 885...

Страница 7: ...the breaker to trip in a time progressively earlier than the Long Delay Time Setting When the load current returns to normal the LTM begins to reset and after about 1 0 minutes it has reset fully so...

Страница 8: ...ght 8 times Ir the Long Delay Setting For currents greater than 8 times Ir the 12t response reverts to the flat response Note See also Section 3 6 Zone Interlocking above 4 6 Instantaneous Current Set...

Страница 9: ...60 200 240 300 400 UJ 0 600 150 180 210 240 300 360 450 600 UJ a 630 158 189 221 252 315 378 473 630 2 800 200 240 280 320 400 480 600 800 9 1000 250 300 350 400 500 600 750 1000 J 1200 300 360 420 48...

Страница 10: ...it Required following all automatic trip and test operations Push then release Test button to test Test operation begins with release of pushbutton Fig 5 Integral Test Panel Lower Right Corner of Trip...

Страница 11: ...0 of the breaker frame or current sensor rating be sure the GREEN Unit Status LED in the lower right corner of the trip unit See Figs 1 and 5 is blinking on and off indi cating that there is enough cu...

Страница 12: ...g make sure the circuit breaker is carrying no more than 50 of the Long Delay Current Setting fr The I L 29 8858 trip unit will not execute your instructions to Test itself when the load current excee...

Страница 13: ...attery should be the same type or equivalent Acceptable 3 0 volt lithium batteries may be Fig 6 Typical Rating Plug Trip Unit Connector F u InII Keyed Cavity Page 13 obtained from the following compan...

Страница 14: ...t breaker can carry with the specified current sensors installed The Sensor Rat ing can be the same or less than the Frame Rating but not greater The Rating Plug See Fig 6 fits into a special cavity t...

Страница 15: ...er APPENDIX A ZONE INTERLOCKING Assume a ground fault of 2000 Amperes occurs and refer to Fig A 1 CASE 1 There is no Zone Selective Interlocking standard time delay coordination is used Fault 3 The br...

Страница 16: ...D any Zone Interlock Wiring The maximum distance between first and last zone is 250 feet 1 1 0 m A Maximum of 20 breakers may be con nected in parallel in one Zone F22 C SO SI 0 1 Sec Legend C Common...

Страница 17: ...I L 29 8858 Page 17 NOTES Effective May 1997 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 18: ...Page 18 I L 29 8858 NOTES Effective May 1997 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 19: ...I L 29 8858 Page 19 NOTES Effective May 1997 w w w E l e c t r i c a l P a r t M a n u a l s c o m...

Страница 20: ...SE OR MERCHANTABILITY OR WARRANTIES ARISING FROM COURSE OF DEALING OR USAGE OF TRADE ARE MADE REGARDING THE INFORMATION RECOMMENDATIONS AND DESCRIPTIONS CONTAINED HEREIN In no event will Cutler Hammer...

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