GE Multilin 345 - Page 21

CHAPTER 1: INTRODUCTION SPECIFICATIONS
345 TRANSFORMER PROTECTION SYSTEM – INSTRUCTION MANUAL 1–13
BREAKER FAILURE (50BF)
Pickup Level:..........................................................0.05 to 20.00 x CT in steps of 0.01 x CT
Dropout Level: ......................................................97 to 98% of pickup
Timer 1 Delay:......................................................0.03 to 1.00 s in steps of 0.01 s
Timer 2 Delay:......................................................0.00 to 1.00 s in steps of 0.01 s
Time Delay Accuracy: ......................................0 to 1 cycle (Timer 1, Timer 2)
Level Accuracy:....................................................per CT input
Reset Time: ............................................................<14 ms typical at 2 x pickup at 60 Hz
<16 ms typical at 2 x pickup at 50 Hz
LOCKOUT
Function: .................................................................Latch Trip command to Relay 1 TRIP
Block Close to Relay 2 CLOSE
Operation:...............................................................Any protection element
AMBIENT TEMPERATURE
High Temperature Pickup:..............................20°C to 80°C in steps of 1°C
Low Temperature Pickup: ...............................-40°C to 20°C in steps of 1°C
Time Delay:............................................................1 to 60 min in steps of 1 min
Temperature Dropout:......................................Configurable 90 to 98% of pickup
Temperature Accuracy:...................................±10°C
Timing Accuracy:................................................±1 second