
5-56
W650 Wind Generator Protection System
GEK-113032A
5.4 PROTECTION ELEMENTS
5 SETTINGS
5
5.4.5 GROUND CURRENT
The Ground Current menu incorporates the following overcurrent elements:
Ground time overcurrent (51G)
Ground instantaneous overcurrent (50G)
Ground directional element (67G)
5.4.5.1 GROUND TIME DELAYED OVERCURRENT ELEMENT (51G)
Ground TOC is a ground time delayed overcurrent protection element. The ground current is measured from the ground
input, terminals B9-B10, and it may be programmed as Fundamental phasor magnitude or RMS magnitude as required by
the application. The element trip can be time delayed using a selectable curve. It incorporates a reset time that is selectable
between instantaneous or linear.
Table 5–51: 51G ELEMENT SETTINGS
The snapshot event setting enables or disables the snapshot event generation for this element.
5.4.5.2 GROUND INSTANTANEOUS OVERCURRENT ELEMENT (50G)
Ground IOC is a ground instantaneous overcurrent protection element, with a setting range from 0.05 A to 160 A, which can
also be time delayed. The delay is selectable between 0.00 and 900 seconds. The ground current input quantity is
measured from the ground input, and it may be programmed as Fundamental phasor magnitude or RMS magnitude as
required by the application. The element incorporates a reset time selectable between 0 and 900 seconds, and a block
input that resets the pickup and trip signals to 0. The element outputs are the general pickup and trip signals of the element.
Table 5–52: 50G ELEMENT SETTINGS
The snapshot event setting enables or disables the snapshot event generation for this element.
SETPOINT > PROTECTION ELEMENTS > GROUND CURRENT > GROUND TOC
GROUND TOC 1> GROUND TOC 2 > GROUND TOC 3
SETTING DESCRIPTION
NAME
DEFAULT VALUE
STEP
RANGE
Function permission
Function
DISABLED
N/A
[DISABLED – ENABLED]
Input type
Input
PHASOR(DFT)
N/A
[PHASOR – RMS]
Pickup level
Pickup Level
1.00
0.01 A
[0.05 : 160.00]
Curve shape
Curve
IEEE Ext Inv
N/A
[See list of curves]
Time Dial
TD Multiplier
1.00
0.01 s
[0.00 : 900.00]
Reset type
Reset
INSTANTANEOUS
N/A
[INSTANTANEOUS – LINEAR]
Snapshot Event generation
Snapshot Events
ENABLED
N/A
[DISABLED – ENABLED]
SETPOINT > PROTECTION ELEMENTS > GROUND CURRENT > GROUND IOC
GROUND IOC 1> GROUND IOC 2 > GROUND IOC 3
SETTING DESCRIPTION
NAME
DEFAULT VALUE STEP
RANGE
Function permission
Function
DISABLED
N/A
[DISABLED – ENABLED]
Input type
Input
PHASOR(DFT)
N/A
[PHASOR – RMS]
Pickup level
Pickup Level
30.00
0.01 A
[0.05 : 160.00]
Trip time
Trip Delay
0.00
0.01 s
[0.00 : 900.00]
Reset time
Reset Delay
0.00
0.01 s
[0.00 : 900.00]
Snapshot event generation
Snapshot Events
ENABLED
N/A
[DISABLED – ENABLED]
Содержание Multilin W650
Страница 2: ......
Страница 10: ...VIII W650 Wind Generator Protection System GEK 113032A TABLE OF CONTENTS ...
Страница 30: ...1 20 W650 Wind Generator Protection System GEK 113032A 1 4 W650 HARDWARE 1 GETTING STARTED 1 ...
Страница 140: ...4 72 W650 Wind Generator Protection System GEK 113032A 4 3 WEB SERVER 4 HUMAN INTERFACES 4 ...
Страница 360: ...7 48 W650 Wind Generator Protection System GEK 113032A 7 2 IEC 61850 PROFILE FOR W650 7 IEC 61850 PROTOCOL 7 ...
Страница 368: ...8 8 W650 Wind Generator Protection System GEK 113032A 8 4 OBJECT DICTIONARY 8 W650 CANOPEN PROFILE 8 ...
Страница 406: ...11 22 W650 Wind Generator Protection System GEK 113032A 11 15 RECLOSER 79 11 COMMISSIONING 11 ...
Страница 422: ...13 6 W650 Wind Generator Protection System GEK 113032A 13 4 RELAY CONFIGURATION 13 FREQUENTLY ASKED QUESTIONS 13 ...
Страница 446: ...A 22 W650 Wind Generator Protection System GEK 113032A A 1 LOGIC OPERANDS APPENDIXA A ...
Страница 596: ...D 8 W650 Wind Generator Protection System GEK 113032A D 5 IEC 60870 5 104 POINT LIST APPENDIXD D ...
Страница 622: ...F 2 W650 Wind Generator Protection System GEK 113032A F 1 GE MULTILIN WARRANTY APPENDIXF F ...