GE Power Management
745 Transformer Management Relay
vii
TABLE
OF
CONTENTS
9.1.4
TOOLBAR.................................................................................................. 9-3
9.1.5
HARDWARE CONFIGURATION............................................................... 9-3
9.2 INSTALLATION & CONFIGURATION
9.2.1
745PC INSTALLATION ............................................................................. 9-5
9.2.2
STARTUP & COMMUNICATIONS CONFIGURATION ............................. 9-6
9.3 USING 745PC
9.3.1
SAVING SETPOINTS TO A FILE .............................................................. 9-7
9.3.2
745 FIRMWARE UPGRADES ................................................................... 9-8
9.3.3
LOADING SETPOINTS FROM A FILE...................................................... 9-9
9.3.4
ENTERING SETPOINTS ........................................................................... 9-9
9.3.5
VIEWING ACTUAL VALUES ................................................................... 9-11
10. COMMISSIONING
10.1 GENERAL
10.1.1 INTRODUCTION ..................................................................................... 10-1
10.1.2 TESTING PHILOSOPHY ......................................................................... 10-1
10.1.3 SAFETY PRECAUTIONS ........................................................................ 10-2
10.1.4 CONVENTIONS....................................................................................... 10-2
10.2 TEST EQUIPMENT
10.2.1 TEST SETUP........................................................................................... 10-3
10.3 GENERAL PRELIMINARY WORK
10.3.1 DESCRIPTION ........................................................................................ 10-4
10.3.2 DIELECTRIC STRENGTH TESTING ...................................................... 10-5
10.4 LOGIC INPUTS & OUTPUT RELAYS
10.4.1 LOGIC INPUTS........................................................................................ 10-6
a PROCEDURE .......................................................................................... 10-6
10.4.2 OUTPUT RELAYS ................................................................................... 10-7
a PROCUDURE:......................................................................................... 10-7
10.5 DISPLAY, METERING, COMMUNICATIONS, ANALOG
OUTPUTS
10.5.1 DESCRIPTION ........................................................................................ 10-8
10.5.2 CURRENT INPUTS ................................................................................. 10-8
10.5.3 VOLTAGE INPUT .................................................................................... 10-9
10.5.4 TRANSFORMER-TYPE SELECTION ..................................................... 10-9
a AUTOMATIC TRANSFORMATION PERFORMED IN THE 745 ............. 10-9
b EFFECTS OF ZERO-SEQUENCE COMPONENT REMOVAL ............. 10-10
10.5.5 AMBIENT TEMPERATURE INPUT ....................................................... 10-11
a BASIC CALIBRATION OF RTD INPUT ................................................. 10-11
b DETAILED CALIBRATION OF RTD INPUT .......................................... 10-11
c AMBIENT TEMPERATURE BY MONTHLY AVERAGES...................... 10-12
10.5.6 ANALOG OUTPUTS.............................................................................. 10-13
10.5.7 TAP POSITION...................................................................................... 10-13
10.6 PROTECTION SCHEMES
10.6.1 WARNING.............................................................................................. 10-14
10.6.2 HARMONIC RESTRAINED PERCENT DIFFERENTIAL ...................... 10-14
a MINIMUM PICKUP ................................................................................ 10-14
b VERIFICATION OF LOCAL RESET MODE .......................................... 10-15
c VERIFICATION OF REMOTE RESET MODE....................................... 10-15
d VERIFICATION OF SOLID STATE OUTPUT........................................ 10-15
e BASIC OPERATING TIME .................................................................... 10-16
f
SLOPE MEASUREMENTS.................................................................... 10-16
g SLOPE KNEEPOINT ............................................................................. 10-17
h 2nd HARMONIC RESTRAINT ............................................................... 10-18
i
5th HARMONIC RESTRAINT ................................................................ 10-18
j
ENERGIZATION DETECTION SCHEME.............................................. 10-19
Summary of Contents for 745 TRANSFORMER MANAGEMENT RELAY
Page 30: ...2 8 745 Transformer Management Relay GE Power Management 2 3 SECURITY 2 GETTING STARTED 2 ...
Page 210: ...7 36 745 Transformer Management Relay GE Power Management 7 2 BLOCK DIAGRAMS 7 SCHEME LOGIC 7 ...
Page 322: ...9 12 745 Transformer Management Relay GE Power Management 9 3 USING 745PC 9 745 PC SOFTWARE 9 ...
Page 396: ...A 4 745 Transformer Management Relay GE Power Management A 1 FIGURES AND TABLES APPENDIXA A ...
Page 400: ...C 2 745 Transformer Management Relay GE Power Management C 1 WARRANTY INFORMATION APPENDIXC C ...
Page 406: ...vi 745 Transformer Management Relay GE Power Management ...
Page 407: ...GE Power Management 745 Transformer Management Relay NOTES ...
