Multilin 469 Motor Management Relay ... - GE Digital Energy
Multilin 469 Motor Management Relay ... - GE Digital Energy
Multilin 469 Motor Management Relay ... - GE Digital Energy
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
5.6.2 Thermal Model<br />
PATH: SETTINGS S5 THERMAL MODEL THERMAL MODEL<br />
<br />
THERMAL [<br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
MESSA<strong>GE</strong><br />
SELECT CURVE<br />
STYLE:<br />
OVERLOAD PICKUP<br />
LEVEL: 1.01 x FLA<br />
ASSIGN TRIP<br />
RELAYS:<br />
UNBALANCE BIAS<br />
K FACTOR: 0<br />
COOL TIME CON-<br />
STANT<br />
COOL TIME CON-<br />
STANT<br />
HOT/COLD SAFE<br />
STALL RATIO: 1.00<br />
ENABLE RTD<br />
BIASING: No<br />
RTD BIAS<br />
MINIMUM: 40°C<br />
RTD BIAS CENTER<br />
POINT: 130°C<br />
RTD BIAS<br />
MAXIMUM: 155°C<br />
THERMAL CAPACITY<br />
ALARM: Off<br />
ASSIGN ALARM<br />
RELAYS:<br />
THERMAL CAP.<br />
ALARM<br />
THERMAL CAPACITY<br />
ALARM EVENTS: Off<br />
CHAPTER 5: SETTINGS<br />
Range: Standard, Custom, Voltage<br />
Dependent<br />
Range: 1.01 to 1.25 in steps of 0.01<br />
Range: Trip, Trip & Aux2, Trip & Aux2 &<br />
Aux3, Trip & Aux3<br />
Range: 0 to 19 in steps of 1. (0 defeats<br />
this feature)<br />
Range: 1 to 1000 min. in steps of 1<br />
Range: 1 to 1000 min. in steps of 1<br />
Range: 0.01 to 1.00 in steps of 0.01<br />
Range: Yes, No<br />
Range: 0°C to RTD BIAS CENTER value<br />
in steps of 1<br />
Range: RTD BIAS MINIMUM value to<br />
RTD BIAS MAXMIMUM value<br />
in steps of 1<br />
Range: RTD BIAS CENTER value to<br />
250°C in steps of 1<br />
Range: Off, Latched, Unlatched<br />
Range: Alarm, Alarm & Auxiliary2,<br />
Alarm & Aux2 & Aux3, Alarm &<br />
Auxiliary3, Auxiliary2, Aux2 &<br />
Aux3, Auxiliary3, None<br />
Range: 10 to 100% in steps of 1<br />
Range: On, Off<br />
The primary protective function of the <strong>469</strong> is the thermal model. It consists of five key<br />
elements: the overload curve and overload pickup level, the unbalance biasing of the<br />
motor current while the motor is running, the motor cooling time constants, and the<br />
biasing of the thermal model based on Hot/Cold motor information and measured stator<br />
temperature. Each of these elements are described in detail in the sections that follow.<br />
The <strong>469</strong> integrates stator and rotor heating into one model. <strong>Motor</strong> heating is reflected in<br />
the A1 STATUS MOTOR STATUS MOTOR THERMAL CAPACITY USED actual value register.<br />
If the motor has been stopped for a long period of time, it will be at ambient temperature<br />
5–38 <strong>469</strong> MOTOR MANA<strong>GE</strong>MENT RELAY – INSTRUCTION MANUAL
Change language