Cutler-Hammer Digitrip OPTIM 550 - Page 5

I.B. 29C891B
Page vi
Effective 11/98
LIST OF FIGURES
Figure Title Page
1-1 Series C L-Frame Molded Case Circuit Breaker with OPTIM Trip Unit .....................................................2
1-2 SPB Systems Pow-R Circuit Breaker with OPTIM Trip Unit......................................................................2
1-3 DSII Power Circuit Breaker with OPTIM Trip Unit .....................................................................................2
1-4 Family of Digitrip OPTIM Trip Unit Rating Plugs........................................................................................3
1-5 Family of Digitrip Trip Units Comparison ...................................................................................................3
1-6 Hand Held Programmer in Use..................................................................................................................4
1-7 Breaker Interface Module in Service..........................................................................................................4
1-8 Monitor and Control from Central PC ........................................................................................................5
1-9 Typical System Configurations ..................................................................................................................6
2-1 Typical OPTIM Trip Unit Circuitry (DSII Type Circuit Breaker Shown) ......................................................8
2-2 OPTIM Trip Unit Mounted in Series C L-Frame Circuit Breaker (K-Frame is Similar)...............................9
2-3 OPTIM Trip Unit Mounted in Series C N-Frame Circuit Breaker ...............................................................9
2-4 Front View of L-Frame Type OPTIM Trip Unit (K and N-Frame Designs are Similar).............................10
2-5 K, L and N-Frame Type OPTIM Trip Unit Battery Compartment.............................................................10
2-6 K, L and N-Frame Type OPTIM Trip Unit Programming Port..................................................................11
2-7 OPTIM Trip Unit Mounted in Series C R-Frame Circuit Breaker .............................................................11
2-8 OPTIM Trip Unit Mounted in SPB Circuit Breaker...................................................................................12
2-9 OPTIM Trip Unit Mounted in DSII Circuit Breaker ...................................................................................12
2-10 Front View of R-Frame, SPB and DSII/DSLII Type OPTIM Model 1050 Trip Unit
with R-Frame Rating Plug Installed .........................................................................................................13
2-11 R-Frame, SPB and DSII/DSLII Type OPTIM Trip Unit Battery Compartment .........................................13
2-12 OPTIMizer Shown Connected to Programming Port of DSII Type Circuit Breaker .................................14
2-13 Family of OPTIM Trip Unit Ratings Plugs................................................................................................14
2-14 Power Accessory Requirements for K, L and N-Frame Circuit Breakers ................................................15
2-15 Externally Mounted Potential Transformer Module (necessary for K, L and N-Frame only) ...................16
2-16 Ground Fault Alarm Indicator (necessary for K, L and N-Frame only) ....................................................16
3-1 Sample of Partial Time-Current Trip Curve .............................................................................................21
3-2 Typical Trip Curve Horizontal Movement.................................................................................................21
3-3 Typical Long Delay Time Slope Adjustment............................................................................................21
3-4 Overcurrent Protective Function Combinations.......................................................................................25
3-5 Typical OPTIM Trip Unit Time-Current Curve (10 Curve Shaping Adjustments).....................................26
3-6 Typical Long Delay Setting Adjustment...................................................................................................27
3-7 Typical Long Delay Time Adjustment (I
2
t) Response ..............................................................................27
3-8 Typical Long Delay Time Adjustment (I
4
t) Response ..............................................................................28
3-9 Typical Short Delay Pickup Adjustment...................................................................................................28
3-10 Typical Short Delay Time Adjustment, Flat Response ............................................................................29
3-11 Typical Short Delay Time Adjustment, (I
2
t) Response.............................................................................29
3-12 Multi-layer Ground Fault Protection Scheme Using Zone Selective Interlocking ....................................30
3-13 Typical Instantaneous Pickup Adjustment...............................................................................................31
3-14 Ground Fault Alarm LED .........................................................................................................................32
3-15 Typical Ground Fault Pickup Adjustment.................................................................................................33
3-16 Typical Ground Fault Time Delay Adjustment, Flat Response................................................................33
3-17 Typical Ground Fault Time Delay Adjustment, (I
2
t) Response ................................................................33
3-18 Typical Waveform and Harmonic Display................................................................................................36
3-19 Auxiliary Power Module ...........................................................................................................................38
3-20 Typical Performance Test Record Form..................................................................................................39