GEK-113308
MIWII Directional Power Protection System
2-5
2 PRODUCT DESCRIPTION
2.4 LOSS OF FIELD ELEMENT(40). MIWII1000
2
Circle 1 Timing (DELAY CIRCLE 40 1)
This setting adjusts the timing for circle #1. It defines the time period during which the unit will hold the trip, after measured
impedance is detected inside circle #1.
Circle 2 Trip (TRIP ENABLE 40 2)
This setting allows the trip of Circle #2. In order for the unit to produce trip and close the trip contact, unit 40 must be
enabled, as well as this setting. If the unit is enabled but the trip is not, the unit is operative and will produce digital pickup
and virtual trip signals, that can be configured to close outputs, light up LEDs or trigger the oscillography; however, the unit
will not close the general trip contact (not programmable).
Circle 2 Diameter (DIAM CIRCLE 40 2)
This setting is used for fixing the diameter of circle #2, in secondary ohms, by passing the primary values to unit terminals,
taking into account the VT ratios and the installation current.
Circle 2 Offset (OFFS CIRCLE 40 2)
This setting is used for fixing the offset of circle #2, in secondary ohms, by passing the primary values to unit terminals,
taking into account the VT ratios and the installation current.
Circle 2 Timing (DELAY CIRCLE 40 2)
This setting adjusts the timing for circle #2. It defines the time period during which the unit will hold the trip, after measured
impedance is detected inside circle #2.
jX
R
Zoffset 2
Zoffset 2 + Zdiam 2
Zoffset 1
Zoffset 1 + Zdiam 1