GE L90 User Manual

5-292 L90 LINE CURRENT DIFFERENTIAL SYSTEM – INSTRUCTION MANUAL
GROUPED ELEMENTS CHAPTER 5: SETTINGS
5
Figure 5-160: Negative-sequence directional OC1 logic
5.7.13 Breaker failure (ANSI 50BF)
SETTINGS  GROUPED ELEMENTS  SETTING GROUP 1(6)  BREAKER FAILURE  BREAKER FAILURE 1(4)
 BREAKER FAILURE 1


BF1 FUNCTION:
Disabled
Range: Disabled, Enabled

BF1 MODE:
3-Pole
Range: 3-Pole, 1-Pole

BF1 SOURCE:
SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4

BF1 USE AMP SUPV:
Yes
Range: Yes, No

BF1 USE SEAL-IN:
Yes
Range: Yes, No

BF1 3-POLE INITIATE:
Off
Range: FlexLogic operand

BF1 BLOCK:
Off
Range: FlexLogic operand

BF1 RETRIP PICKUP
DELAY: 0.033 s
Range: 0.000 to 65.535 s in steps of 0.001

BF1 PH AMP SUPV
PICKUP: 1.050 pu
Range: 0.020 to 30.000 pu in steps of 0.001

BF1 N AMP SUPV
PICKUP: 1.050 pu
Range: 0.020 to 30.000 pu in steps of 0.001

BF1 USE TIMER 1:
Yes
Range: Yes, No

GE L90 Specifications

General

Communication	Ethernet, Serial
Mounting	Panel Mount
Frequency	50/60 Hz
Inputs	Digital, Analog
Outputs	Relay
Control	Local, Remote
Communication Interface	IEC 61850, DNP3, Modbus
Protection Functions	Differential, Ground Fault
Standards Compliance	IEC, IEEE