Rtd Bias Maximum; 12.10 System Setpoints - GE Multilin 469 Quick Reference Manual

SYSTEM DATA

12.10 System Setpoints

52

RTD Bias Maximum:

This setpoint is set to the rating of the insulation or slightly less. A class F insulation is used
in this motor that is rated at 155°C, so setting should be 155.
You should now be familiar with maneuvering through and editing setpoint messages. As
such, we will now limit our discussion to just the values that must be programmed, in order
to meet the requirements of the example application. Any setpoints not explicitly
mentioned should be left at the factory default value.
The S2 setpoints page contains setpoints for entering the characteristics of the equipment
on the motor electrical system. In our example, these characteristics are specified under
the Power System Data and Instrument Transformer Data headings in the previous sub-
section. From this information and the resulting calculations, program the page S2
setpoints as indicated.
For current transformers, make the following change in the
setpoints page:
SENSING
"400 A"
PHASE CT PRIMARY:
MOTOR FULL LOAD AMPS FLA
: "5 A Secondary"
GROUND CT
: "50 A"
GROUND CT PRIMARY
PHASE DIFFERENTIAL CT
ENABLE 2-SPEED MOTOR PROTECTION
: "348 A"
: "None"
: "No"
469 MOTOR MANAGEMENT RELAY – QUICK REFERENCE GUIDE
QUICK REFERENCE GUIDE
806550A1.CDR
S2 SYSTEM SETUP CURRENT