5-310
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CONTROL ELEMENTS
CHAPTER 5: SETTINGS
5
5.8.11.4 Breaker restrike
SETTINGS
CONTROL ELEMENTS
MONITORING ELEMENTS
BREAKER RESTRIKE 1(2)
One breaker restrike element is provided for each DSP in the M60.
According to IEEE standard C37.100 entitled IEEE Standard Definitions for Power Switchgear, restrike is defined as “a
resumption of current between the contacts of a switching device during an opening operation after an interval of zero
current of ¼ cycle at normal frequency or longer.”
Figure 5-175: Typical restrike waveform and detection flag
The breaker restrike algorithm responds to a successful interruption of the phase current following a declaration of
capacitor bank offline as per the breaker pole indication. If a high-frequency or system frequency current with a
magnitude greater than the threshold is resumed at least ¼ of a cycle later than the phase current interruption, then a
BREAKER RESTRIKE 1
BREAKER RESTRIKE 1
FUNCTION: Disabled
Range: Disabled, Enabled
BKR RESTRIKE 1
BLOCK: Off
Range: FlexLogic operand
BREAKER RESTRIKE 1
SOURCE: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4
BREAKER RESTRIKE 1
PICKUP: 0.50 pu
Range: 0.10 to 2.00 pu in steps of 0.01
BREAKER RESTRIKE 1
RST DELAY: 0.100 s
Range: 0.000 to 65.535 s in steps of 0.001
BREAKER RESTRIKE 1
HF DETECT: Enabled
Range: Disabled, Enabled
BKR RSTR 1 BKR OPEN:
Off
Range: FlexLogic operand
BKR RSTR 1 OPEN CMD:
Off
Range: FlexLogic operand
BKR RSTR 1 CLS CMD:
Off
Range: FlexLogic operand
BREAKER RESTRIKE 1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
BREAKER RESTRIKE 1
EVENTS: Disabled
Range: Disabled, Enabled
Содержание M60
Страница 9: ...TABLE OF CONTENTS M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ix INDEX ...
Страница 10: ...x M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TABLE OF CONTENTS ...
Страница 14: ...1 4 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION 1 ...
Страница 208: ...4 88 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FLEXLOGIC DESIGN USING ENGINEER CHAPTER 4 INTERFACES 4 ...
Страница 494: ...5 286 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL CONTROL ELEMENTS CHAPTER 5 SETTINGS 5 Figure 5 158 Time out mode ...
Страница 552: ...5 344 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 5 SETTINGS 5 ...
Страница 596: ...7 14 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TARGETS MENU CHAPTER 7 COMMANDS AND TARGETS 7 ...
Страница 602: ...9 4 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL SATURATION DETECTOR CHAPTER 9 THEORY OF OPERATION 9 ...
Страница 652: ...C 6 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL COMMAND LINE INTERFACE APPENDIX C COMMAND LINE INTERFACE C ...
Страница 660: ...iv M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ABBREVIATIONS ...