2-22 M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS CHAPTER 2: PRODUCT DESCRIPTION
2
Offset impedance: 0.00 to 250.00 Ω in steps of 0.01
Pickup level: 0.002 to 30.000 pu in steps of 0.01
Dropout level: 97 to 98%
Operation time: <16 ms at 3 × pickup at 60 Hz
AMP UNBALANCE
Average and full load amps: RMS
I_1 and I_2 amps: phasor
Pickup level: 0.0 to 100.0% in steps of 0.1
Dropout level: 97 to 98% of pickup
Level accuracy: ±0.1
Pickup delay: 0.00 to 600.00 s in steps of 0.01
Reset delay: 0.00 to 600.00 s in steps of 0.01
Operate time: <20 ms at 1.10 × pickup at 60 Hz
Timer accuracy: ±3% of operate time or ±20 ms, whichever is greater
MECHANICAL JAM
Operating condition: Phase overcurrent
Arming condition: Motor not starting
Pickup level: 1.00 to 10.00 × FLA in steps of 0.01
Dropout level: 97 to 98% of pickup
Level accuracy: at 0.1 to 2.0 × CT: ±0.5% of reading
at >2.0 × CT rating: ±1.5% of reading
Pickup delay: 0.10 to 600.00 s in steps of 0.01
Reset delay: 0.00 to 600.00 s in steps of 0.01
Timer accuracy: ±3% of operate time or ±20 ms, whichever is greater
ACCELERATION TIME
Acceleration current: 1.00 to 10.00 × FLA in steps of 0.01
Acceleration time: 0.00 to 180.00 s in steps of 0.01
Operating mode: Definite Time, Adaptive
Timer accuracy: ±100 ms or ±0.5% of total time (whichever is greater)
Level accuracy: ±0.5% of reading or ±0.4% of rated (whichever is greater) at 0.1 to 2.0 × CT rating; ±1.5% of read-
ing at >2.0 × CT rating
UNDERPOWER
Operation: three-phase apparent power
Number of elements: 2, alarm and trip stages in each element
Pickup level: 0.05 to 2.00 pu in steps of 0.01
Pickup level accuracy: ±1.0% of reading
Hysteresis: 3%
Pickup delay: 0 to 600.00 s in steps of 0.01
Timer accuracy: ±3% of operate time or ±10 ms, whichever is greater
Operate time: <35 ms at 60 Hz
UNDERCURRENT
Operation: per-phase current
Number of elements: one with 2 stages, alarm and trip
Pickup level: 0.10 to 0.95 × FLA in steps of 0.01
Pickup level accuracy: ±0.5% of reading or ±0.4% of rated (whichever is greater) at 0.1 to 2.0 × CT rating; ±1.5% of read-
ing at >2.0 × CT rating
Dropout level: 102 to 103% of pickup
Pickup delay: 0 to 600.00 s in steps of 0.01
Timer accuracy: ±3% of operate time or ±10 ms, whichever is greater
Pickup time: <55 ms at 60 Hz
SENSITIVE DIRECTIONAL POWER
Measured power: 3-phase, true RMS
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