GE Multilin G650 Manual page 6

10. APPLICATION EXAMPLES
11. FREQUENTLY ASKED
QUESTIONS
12. G650TROUBLESHOOTING
GUIDE
A. LOGIC OPERANDS
B. MODBUS PROTOCOL
GEK-113285A
TABLE OF CONTENTS
9.9 CONNECTIONS FOR TESTING PROTECTION ELEMENTS
9.10 INSTANTANEOUS OVERCURRENT (50PH, 50N, 50G Y 50SG)
9.11 TIME OVERCURRENT (51PH, 51PL, 51N, 51G)
9.12 DIRECTIONAL ELEMENTS (67N, 67G)
9.12.1 67N ELEMENT................................................................................................. 9-14
9.12.2 67G ELEMENT ................................................................................................ 9-15
9.13 UNDERVOLTAGE ELEMENTS (27P, 27X)
9.13.1 27P ELEMENT................................................................................................. 9-16
9.13.2 27X ELEMENT................................................................................................. 9-16
9.14 OVERVOLTAGE ELEMENTS (59P, 59X, 59NH)
9.14.1 59P ELEMENT................................................................................................. 9-17
9.14.2 59X ELEMENT................................................................................................. 9-17
9.14.3 59NH ELEMENT .............................................................................................. 9-18
9.14.4 47 ELEMENT - NEG SEQ OV ......................................................................... 9-19
9.15 FREQUENCY ELEMENTS (81O/81U)
10.1 EXAMPLE 1: COMMUNICATION & PROTECTION SETTINGS
PROCEDURE
10.1.1 DESCRIPTION OF THE EXERCISE ............................................................... 10-1
10.1.2 PROCEDURE TO COMMUNICATE WITH THE RELAY ................................. 10-1
10.1.3 PROCEDURE TO SET THE PROTECTION FUNCTION ................................ 10-3
10.1.4 TEST ................................................................................................................ 10-4
10.2 EXAMPLE 2: PROCEDURE TO SET AN OPERATION
10.2.1 DESCRIPTION OF THE EXERCISE ............................................................... 10-5
10.2.2 PROCEDURE ................................................................................................. 10-5
10.2.3 TEST ................................................................................................................ 10-7
11.1 COMMUNICATIONS
11.2 PROTECTION
11.3 CONTROL AND HMI
11.4 RELAY CONFIGURATION
12.1 SYMPTOMS AND RECOMMENDED ACTIONS
A.1 LOGIC OPERANDS
B.1 ACCESS TO G650 DATA
B.2 MODBUS G650
B.2.1 FUNCTIONS USED ...........................................................................................B-2
B.2.2 PHYSICAL LAYER.............................................................................................B-2
B.2.3 DATA LINK LAYER............................................................................................B-3
B.2.4 GENERIC READING .........................................................................................B-4
B.2.5 GENERIC WRITING ..........................................................................................B-5
B.2.6 FUNCTION CODES ..........................................................................................B-6
B.2.7 EXCEPTIONS AND ERROR RESPONDS ........................................................B-6
G650 Generator Protection & Control System 5