Specifications; Protection Specifications - GE D90 Plus Instruction Manual

CHAPTER 2: PRODUCT DESCRIPTION

Specifications

NOTE:

Protection specifications

PLUS
D90 LINE DISTANCE PROTECTION SYSTEM – INSTRUCTION MANUAL
Specifications are subject to change without notice.
AUTORECLOSURE
Applications:..........................................................two breakers
Tripping schemes: ..............................................single-pole and three-pole
Reclose attempts:...............................................up to 4 before lockout
Reclosing mode: ..................................................selectable
Breaker sequence:..............................................selectable
AUXILIARY OVERVOLTAGE
Pickup level: ...........................................................0.000 to 1.100 pu in steps of 0.001
Dropout level:........................................................<98% of pickup
Level accuracy: ....................................................±0.5% of reading from 10 to 208 V
Pickup delay: .........................................................0.00 to 600.00 seconds in steps of 0.01
Reset delay: ...........................................................0.00 to 600.00 seconds in steps of 0.01
Timing accuracy: ................................................±3% of operate time or ±4 ms (whichever is greater)
Operate time:........................................................<2 cycles at 1.10 × pickup at 60 Hz
AUXILIARY UNDERVOLTAGE
Pickup level: ...........................................................0.000 to 1.100 pu in steps of 0.001
Dropout level:........................................................>102% of pickup
Level accuracy: ....................................................±0.5% of reading from 10 to 208 V
Curve shapes:.......................................................GE IAV Inverse, Definite Time
Curve multiplier: ..................................................0.00 to 600.00 in steps of 0.01
Timing accuracy: ................................................±3% of operate time or ±4 ms (whichever is greater)
Figure 14: Order codes
SPECIFICATIONS
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