Basler BE1-11m - Page 569

9424200996 84-25
BE1-11m Settings Calculation Examples
Table 206 lists the allowable time on the squirrel cage winding at 100% voltage.
Table 206. Allowable time on Squirrel Cage Winding at 100 Percent Voltage
% Speed
0
50
75
95
Seconds
16.7
25
34
288
○ Acceleration Time to Synchronous Speed (100% V) .............. 2.42 seconds
○ Acceleration Time to Synchronous Speed (85%) V) ............... 4.27 seconds
○ Power Factor relay (55) for pullout 0.90 P.F. lag; locked out until after 2.5 seconds
● CONSECUTIVE STARTS
○ Ambient Temperature .................................... 2 starts
■ Idle Starts Time ................................ 60 minutes
■ Running Starts Time ......................... 30 minutes
○ Operating Temperature ................................. 1 start
■ Idle Starts Time ................................ 90 minutes
■ Running Starts Time ......................... 60 minutes
● THERMAL TIME CONSTANT
○ Ambient (Stopped Condition) ........................ 190 minutes
○ Operating (Running Condition) ...................... 60 minutes
● RUNNING
○ Ride-Through Minimum Voltage .................... 75% for 30 seconds
○ Bearing Alarm Temperature .......................... 90°C
○ Bearing Trip Temperature ............................. 95°C
● OPERATING PERFORMANCE
○ Load % ........................................................... 100 ...... 75 ........ 50
○ Efficiency % ................................................... 97.23 ... 97.22 ... 96.85
● OTHER
○ Name
○ Location
The required motor curves are shown in Figure 84-31. Curve A shows the thermal limits at 100 percent of
the starting voltage. Curve B shows the thermal limits at 85 percent of the starting voltage. Figure 84-32
shows the synchronous motor V curves indicating operational parameters of load an power factor.