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M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
GROUPED ELEMENTS
CHAPTER 5: SETTINGS
5
Definite time curve
The Definite Time curve shape operates as soon as the pickup level is exceeded for a specified period of time. The base
definite time curve delay is in seconds. The curve multiplier of 0.00 to 600.00 makes this delay adjustable from
instantaneous to 600.00 seconds in steps of 10 ms. The definite time curve shapes are defined as follows:
Eq. 5-46
Eq. 5-47
where
T = Operate Time (in seconds)
TDM = Multiplier setting
I = Input Current
I
pickup
= Pickup Current setting
T
RESET
= Reset Time in seconds (assuming energy capacity is 100% and RESET: Timed)
Recloser curves
The M60 uses the FlexCurve feature to facilitate programming of 41 recloser curves. See the FlexCurves settings section
earlier in this chapter for details.
5.7.8.3 Ground time overcurrent (ANSI 51G, IEC PTOC)
SETTINGS
GROUPED ELEMENTS
SETTING GROUP 1(6)
GROUND CURRENT
GROUND TOC1(6)
This element can provide a required time-delay operating characteristic versus the applied current or be used as a simple
definite time element. The ground current input value is the quantity measured by the ground input CT and is the
fundamental phasor or RMS magnitude. Two methods of resetting operation are available: “Timed” and “Instantaneous”
(see the Inverse TOC Curve Characteristics section for details). When the element is blocked, the time accumulator resets
according to the reset characteristic. For example, if the element reset characteristic is set to “Instantaneous” and the
element is blocked, the time accumulator clears immediately.
GROUND TOC1 FUNCTION
— This setting enables and disables the ground time overcurrent protection element.
GROUND TOC1
GROUND TOC1
FUNCTION: Disabled
Range: Disabled, Enabled
GROUND TOC1 SIGNAL
SOURCE: SRC 1
Range: SRC 1, SRC 2, SRC 3, SRC 4
GROUND TOC1
INPUT: Phasor
Range: Phasor, RMS
GROUND TOC1
PICKUP: 1.000 pu
Range: 0.020 to 30.000 pu in steps of 0.001
GROUND TOC1
CURVE: IEEE Mod Inv
Range: see the Overcurrent Curve Types table
GROUND TOC1
TD MULTIPLIER: 1.00
Range: 0.00 to 600.00 in steps of 0.01
GROUND TOC1
RESET: Instantaneous
Range: Instantaneous, Timed
GROUND TOC1 BLOCK:
Off
Range: FlexLogic operand
GROUND TOC1
TARGET: Self-reset
Range: Self-reset, Latched, Disabled
GROUND TOC1
EVENTS: Disabled
Range: Disabled, Enabled
Содержание M60
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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 ...