GE T60 User Manual

GE Multilin T60 Transformer Protection System vii
TABLE OF CONTENTS
7.1.2 VIRTUAL INPUTS.............................................................................................. 7-1
7.1.3 CLEAR RECORDS ............................................................................................ 7-2
7.1.4 SET DATE AND TIME ....................................................................................... 7-2
7.1.5 RELAY MAINTENANCE .................................................................................... 7-3
7.1.6 PHASOR MEASUREMENT UNIT ONE-SHOT.................................................. 7-4
7.1.7 SECURITY ......................................................................................................... 7-5
7.2 TARGETS
7.2.1 TARGETS MENU............................................................................................... 7-6
7.2.2 TARGET MESSAGES ....................................................................................... 7-6
7.2.3 RELAY SELF-TESTS......................................................................................... 7-6
8. COMMISSIONING 8.1 DIFFERENTIAL CHARACTERISTIC TEST
8.1.1 DESCRIPTION................................................................................................... 8-1
8.2 DIFFERENTIAL CHARACTERISTIC TEST EXAMPLES
8.2.1 INTRODUCTION................................................................................................ 8-3
8.2.2 TEST EXAMPLE 1 ............................................................................................. 8-4
8.2.3 TEST EXAMPLE 2 ............................................................................................. 8-9
8.2.4 TEST EXAMPLE 3 ........................................................................................... 8-10
8.2.5 TEST EXAMPLE 4 ........................................................................................... 8-11
8.3 INRUSH INHIBIT TEST
8.3.1 INRUSH INHIBIT TEST PROCEDURE ........................................................... 8-13
8.4 OVEREXCITATION INHIBIT TEST
8.4.1 OVEREXCITATION INHIBIT TEST PROCEDURE ......................................... 8-14
8.5 FREQUENCY ELEMENT TESTS
8.5.1 TESTING UNDERFREQUENCY AND OVERFREQUENCY ELEMENTS....... 8-15
8.6 COMMISSIONING TEST TABLES
8.6.1 DIFFERENTIAL RESTRAINT TESTS.............................................................. 8-17
8.6.2 INRUSH INHIBIT TESTS ................................................................................. 8-17
8.6.3 OVEREXCITATION INHIBIT TESTS............................................................... 8-18
9. MAINTENANCE 9.1 MODULES
9.1.1 REPLACE A MODULE....................................................................................... 9-1
9.2 BATTERIES
9.2.1 REPLACE BATTERY......................................................................................... 9-3
9.2.2 DISPOSE OF BATTERY.................................................................................... 9-5
A. FLEXANALOG AND
FLEXINTEGER
PARAMETERS
A.1 PARAMETER LISTS
A.1.1 FLEXANALOG ITEMS .......................................................................................A-1
A.1.2 FLEXINTEGER ITEMS ....................................................................................A-25
B. MODBUS
COMMUNICATIONS
B.1 MODBUS RTU PROTOCOL
B.1.1 INTRODUCTION................................................................................................B-1
B.1.2 PHYSICAL LAYER.............................................................................................B-1
B.1.3 DATA LINK LAYER............................................................................................B-1
B.1.4 MODBUS RTU CRC-16 ALGORITHM...............................................................B-2
B.2 MODBUS FUNCTION CODES
B.2.1 SUPPORTED FUNCTION CODES ...................................................................B-4
B.2.2 READ ACTUAL VALUES OR SETTINGS (FUNCTION CODE 03/04H) ...........B-4
B.2.3 EXECUTE OPERATION (FUNCTION CODE 05H) ...........................................B-5
B.2.4 STORE SINGLE SETTING (FUNCTION CODE 06H) .......................................B-5
B.2.5 STORE MULTIPLE SETTINGS (FUNCTION CODE 10H) ................................B-6

GE T60 Specifications

General

Frequency	50/60 Hz
Mounting	Panel Mount
Protection Functions	Overcurrent
Communication Protocols	DNP3
Operating Temperature	+70°C
Enclosure	IP54 (front panel)