GE L60 Instruction Manual page 321
Line phase comparison
system
ur series
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Also See for L60:
- Instructions manual (768 pages) ,
- Instruction manual (736 pages) ,
- Communications manual (532 pages)
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5 SETTINGS
•
NEUTRAL DIR OC1 FWD PICKUP: This setting defines the pickup level for the overcurrent unit of the element in the
forward direction. When selecting this setting it must be kept in mind that the design uses a 'positive-sequence
restraint' technique for the "Calculated 3I0" mode of operation.
•
NEUTRAL DIR OC1 REV LIMIT ANGLE: This setting defines a symmetrical (in both directions from the ECA) limit
angle for the reverse direction.
•
NEUTRAL DIR OC1 REV PICKUP: This setting defines the pickup level for the overcurrent unit of the element in the
reverse direction. When selecting this setting it must be kept in mind that the design uses a positive-sequence restraint
technique for the "Calculated 3I0" mode of operation.
Figure 5–95: NEUTRAL DIRECTIONAL OVERCURRENT LOGIC
GE Multilin
L60 Line Phase Comparison System
5.5 GROUPED ELEMENTS
5-193
5
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