GE DBF, Instructions Manual

Page: 4 / 65

TABLE OF CONTENTS
GEK-106168E DBF Breaker Failure Protection i
TABLE OF CONTENTS
TABLE OF CONTENTS TABLE OF CONTENTS
TABLE OF CONTENTS
1. GENERAL DESCRIPTION AND APPLICATION ........................................................................................... 1
1.1. GENERAL DESCRIPTION ................................................................................................................................. 1
2. OPERATION LOGIC ...................................................................................................................................... 3
2.1. PROTECTION FUNCTIONS .............................................................................................................................. 3
2.1.1. Overcurrent units.......................................................................................................................................... 3
2.2. MONITORING AND RECORDING FUNCTIONS.............................................................................................. 5
2.2.1 Measurement ............................................................................................................................................... 5
2.2.2 Associated Breaker Status........................................................................................................................... 5
2.2.3 Target Lamps ............................................................................................................................................... 5
2.2.4 Circuit Breaker Breaking Capacity Monitoring ............................................................................................. 9
2.2.5 Built-in Self-Checking Unit.......................................................................................................................... 10
2.3. A
NALYSIS
F
UNCTIONS
. ........................................................................................................................................ 10
2.3.1 Event Recorder. .......................................................................................................................................... 10
2.3.1 Oscillography .............................................................................................................................................. 10
2.4. C
ONTROL
.......................................................................................................................................................... 12
2.4.1 Tables of Settings ...................................................................................................................................... 12
2.4.2 Time Synchronization.................................................................................................................................. 13
2.4.3 Configurable Inputs and Outputs ............................................................................................................... 13
2.5. M
AN
-
MACHINE
I
NTERFACE
(HMI) ........................................................................................................................ 15
2.6. R
EMOTE
C
OMMUNICATIONS
................................................................................................................................ 16
3. SETTINGS .................................................................................................................................................... 17
4. TECHNICAL CHARACTERISTICS .............................................................................................................. 21
4.1. M
ODEL
L
IST
....................................................................................................................................................... 21
4.1.1. Special Models ........................................................................................................................................... 21
4.2. T
ECHNICAL
C
HARACTERISTICS
............................................................................................................................ 22
5. HARDWARE DESCRIPTION ....................................................................................................................... 25
5.1. P
HYSICAL
D
ESCRIPTION
..................................................................................................................................... 25
5.1.1. Case .......................................................................................................................................................... 25
5.1.2. Electrical Connections............................................................................................................................... 25
5.1.3. Internal Construction ................................................................................................................................. 25
5.2. O
PERATING
T
HEORY
.......................................................................................................................................... 27
5.2.1. Magnetic Module ....................................................................................................................................... 27
5.2.2. CPU Board ................................................................................................................................................ 27
5.2.3 Power Supply ............................................................................................................................................. 28
5.2.4 Keyboard and Display ................................................................................................................................ 28
6. ACCEPTANCE TESTS................................................................................................................................. 29
6.1. C
ONNECTIONS AND
N
ECESSARY
E
QUIPMENT
...................................................................................................... 29
6.2. V
ISUAL
I
NSPECTION
........................................................................................................................................... 29
6.3. P
ANEL
I
NSULATION
T
ESTS
.................................................................................................................................. 29
6.4. R
ELAY
S
ETTING
................................................................................................................................................. 30
6.5. I
NDICATORS
........................................................................................................................................................ 30
6.6. P
OWER
S
UPPLY
................................................................................................................................................. 30
6.7. C
OMMUNICATIONS
.............................................................................................................................................. 31
6.8. I
NPUTS
............................................................................................................................................................... 32
6.8.1 Digital inputs................................................................................................................................................ 32
6.8.2 IRIG-B Synchronizing Input........................................................................................................................ 32
6.9. F
UNCTIONS
......................................................................................................................................................... 33
6.9.1 50BF 1P Unit Test ...................................................................................................................................... 33
6.9.2 50BF 3P Unit Test ...................................................................................................................................... 34
6.9.3 Internal Arc Test......................................................................................................................................... 35
6.9.4 3P NO I FUNCTION.................................................................................................................................... 35