GE Multilin 745 - Page 142

S4 Elements745
Transformer Management Relay
Setpoints
http://www.GEindustrial.com/multilin
5–68
GE Multilin
FIGURE 5–29: Underfrequency 1 Scheme Logic
c) Frequency Decay
PATH: SETPOINTS !" S4 ELEMENTS !" FREQUENCY !" FREQUENCY DECAY
! FREQUENCY [!]
DECAY
FREQUENCY DECAY
FUNCTION: Disabled
Range: Enabled, Disabled
MESSAGE
FREQUENCY DECAY
TARGET: Self-Reset
Range: Self-Reset, Latched, None
MESSAGE
CURRENT SENSING:
Enabled
Range: Enabled, Disabled
MESSAGE
MINIMUM OPERATING
CURRENT: 0.20 x CT
Range: 0.20 to 1.00 x CT in steps of
0.01
MESSAGE
MINIMUM OPERATING
VOLTAGE: 0.50 x VT
Range: 0.10 to 0.99 x CT in steps of
0.01
MESSAGE
FREQUENCY DECAY
THRESHOLD: 59.50 Hz
Range: 45.00 to 59.99 Hz in steps of
0.01
MESSAGE
FREQUENCY DECAY
DELAY: 0.00 s
Range: 0.00 to 600.00 s in steps of 0.01
MESSAGE
FREQUENCY DECAY
RATE 1: 0.4 Hz/s
Range: 0.1 to 5.0 Hz/s in steps of 0.1
MESSAGE
FREQUENCY DECAY
RATE 2: 1.0 Hz/s
Range: 0.1 to 5.0 Hz/s in steps of 0.1
MESSAGE
FREQUENCY DECAY
RATE 3: 2.0 Hz/s
Range: 0.1 to 5.0 Hz/s in steps of 0.1