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SPECIFICATIONS
Specifications
NOTE:
NOTE
NOTE:
NOTE
NOTE:
NOTE
NOTE:
NOTE
Password security
Protection
1–8
Specifications are subject to change without notice.
To obtain the total element operating time, i.e. from the presence of a trip condition to
initiation of a trip, add 8 ms output relay time to the operate times listed below.
For multi-phase protection elements, the trip delay setting applies to the first trip phase.
The remaining phases trip instantaneously if the first phase is tripped.
Specifications are subject to the VFD function being disabled or bypassed.
PASSWORD SECURITY
Master Password: ............................................... 8 to 10 alpha-numeric characters
Settings Password:............................................. 3 to 10 alpha-numeric characters for local and remote
Control Password: .............................................. 3 to 10 alpha-numeric characters for local and remote
PHASE/NEUTRAL TIMED OVERCURRENT (51P/51N)
Pickup Level: ......................................................... 0.05 to 20.00 x CT in steps of 0.01 x CT
Dropout Level:...................................................... 97% of Pickup @ I > 1 x CT
Curve Shape:......................................................... ANSI Extremely/Very/Moderately/Normally Inverse
Curve Multiplier: .................................................. 0.05 to 50.00 in steps of 0.01
Reset Time: ............................................................ Instantaneous, Linear
Curve Timing Accuracy:.................................. ±3% of expected inverse time or 1 cycle, whichever is
Level Accuracy: ................................................... per CT input
DIRECTIONAL POWER (32)
Measured power:................................................ 3-phase
Characteristic angle:......................................... 0º to 359º in steps of 1°
Power pickup range: ......................................... -1.200 to 1.200 x Rated Power in steps of 0.001
Pickup level accuracy:...................................... 2.5% or 0.01 pickup, whichever is greater
Hysteresis: ............................................................. 2% of pickup
Pickup time delay:.............................................. 0.0 to 600.0 s in steps of 0.1 s
Operate time:........................................................ < 55 ms at 1.1 x pickup at 60 Hz
Timer accuracy: .................................................. ± 3% of delay setting or ± ¼ cycle (whichever is greater)
access
access
Pickup - 0.02 x CT @ I < 1 x CT
Definite Time (0.1 s base curve)
IEC Curve A/B/C and Short Inverse
IAC Extremely/Very/-/Short Inverse
greater, from pickup to operate
< 65 ms at 1.1 x pickup at 50 Hz
from pickup to operate
339 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
CHAPTER 1: INTRODUCTION
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