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
Summary of Contents for M60
Page 9: ...TABLE OF CONTENTS M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ix INDEX ...
Page 10: ...x M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TABLE OF CONTENTS ...
Page 552: ...5 344 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 5 SETTINGS 5 ...
Page 660: ...iv M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ABBREVIATIONS ...