GE Multilin W650, Instruction Manual, Page: 44 / 622

2-14 W650 Wind Generator Protection System GEK-113032A
2.4 TECHNICAL SPECIFICATIONS 2 PRODUCT DESCRIPTION
2
2.4.1.21 VOLTAGE UNBALANCE (60V)
2.4.2 CONTROL
2.4.2.1 AUTORECLOSE (79)
2.4.2.2 FUSE FAILURE
2.4.2.3 BREAKER FAILURE (50BF)
Timing accuracy ±3.5% of operate time or 30 ms. (whichever is greater)
Block Time after close 0.00 to 900.00 s in steps of 0.01 s
Snapshot Events Selectable by setting
Pickup level 0.00-500.00% (V2/V1 ratio) in steps of 0.01%
Reset delay 0.00 to 900.00 s in steps of 0.01 s
Trip delay 0.00 to 900.00 s in steps of 0.01 s
Timing accuracy ±3.5% of operate time or 30 ms. (whichever is greater)
Snapshot Events Selectable by setting
Schemes Three-pole tripping schemes
Number of shots Up to 4 reclose attempts before lockout
Dead time Independent dead time setting before each shot
adjustable between 0 and 900 s in steps of 0.01 s
Reclaim time 0.00 to 900.00 s in steps of 0.01 s
Condition permission Selectable by setting
Hold time 0.00 to 900.00 s in steps of 0.01 s
Reset time 0.00 to 900.00 s in steps of 0.01 s
Snapshot Events Selectable by setting
Possibility to modify protection settings after each shot programmable through PLC (block signals available after each
shot)
Algorithm based on positive sequence of voltage and current
Activation by V
2
/V
1
ratio
Current Input Fundamental Phasor (without harmonics)
Rated current For connection to 1 or 5 A CTs.
Pickup level for supervision 0.05 to 160.00 A in steps of 0.01 A
Pickup level for high level 0.05 to 160.00 A in steps of 0.01 A
Pickup level for low level 0.05 to 160.00 A in steps of 0.01 A
Pickup level for internal arcing 0.05 to 160.00 A in steps of 0.01 A
Reset level 97% of the pickup level