Basler Electric BE1-51/27C - Manual (Page 67)

9137200998 Rev E 61
Specifications
BE1-51/27C Time Overcurrent Relays electrical and physical specifications are described below.
Operational Specifications
Time Overcurrent Pickup Selection Range
Continuously adjustable over the current sensing input ranges specified in the style chart.
Time Overcurrent Measuring Accuracy
±2% of pickup setting.
When the TAP CAL control is fully CW, the actual pickup will be within
±5% of the front panel TAP
selector setting.
Time Overcurrent Dropout Ratio
Better than 92% of pickup level.
Instantaneous Overcurrent Pickup Range
Continuously adjustable over the range of 1 to 40 times the time overcurrent pickup setting.
Instantaneous Overcurrent Measuring Accuracy
±2% of pickup setting.
Instantaneous Overcurrent Dropout Ratio
Better than 98% of pickup level.
Instantaneous Response
Figure 38 shows the typical response for the instantaneous pickup element.
Figure 38. Typical Instantaneous Response Time
BE1-51/27C Specifications