Cutler-Hammer Digitrip OPTIM 550 - OPTIM Trip Unit Metering Tolerances

I.B. 29C891B
Page 19
Effective 11/98
Table 2.3 OPTIM Trip Unit Metering Tolerances
➀
Parameter Circuit Breaker Type Accuracy Range/Assumptions
Phase Current K, L, N ±2% Frame Current Rating 5% to 100% Frame Rating
R, SPB ±2% Frame Current Rating 5% to 100% (Current)
DSII, DSLII ±2% Sensor Current Rating Sensor Rating
Ground Current K, L, N ±5% Frame Current Rating 10% to 100% Frame
R, SPB ±5% Frame Current Rating 10% to 100% Frame
DSII, DSLII ±5% Sensor Current Rating 10% to 100% Current Sensor
Power and Peak K, L, N ±4% of (Frame Current Rating x 600V) x 3 ~ 1 sec. sampling window
Demand R, SPB ±4% of (Frame Current Rating x 600V) x 3 - Current @ 5% to 175% of frame
DSII, DSLII ±4% of (Current Sensor Rating x 600V) x 3 or sensor rating
System Power Factor K, L, N ±0.02 Balanced three
R, SPB ±0.02 Phase Load per
DSII, DSLII ±0.02 ANSI Std. C12.1-1988
Energy K, L, N ±5% of (Frame Current Rating x 600V x time) x 3 5% to 175% of Plug Rating I
n
R, SPB ±5% of (Frame Current Rating x 600V x time) x 3
DSII, DSLII ±5% of (Current Sensor Rating x 600V x time) x 3
Notes:
➀ Metered values are displayed via:
1. OPTIMizer Hand Held Programmer
2. Breaker Interface Module
3. Remote PC via IMPACC