CHAPTER 2: PRODUCT DESCRIPTION
SPECIFICATIONS
M60 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL
2-21
2
Break 2:
1.50 to 30.00 pu in steps of 0.01
Operate time:
<¾ cycle at
I
diff
> 5 × pickup
PHASE/NEUTRAL/GROUND TOC
Current:
Phasor or RMS
Pickup level:
0.020 to 30.000 pu in steps of 0.001
Dropout level:
97% to 98% of pickup
Level accuracy:
0.1 to 2.0
×
CT:
±0.5% of reading or ±0.4% of rated (whichever is greater)
> 2.0
×
CT:
±1.5% of reading > 2.0
×
CT rating
Curve shapes:
IEEE Moderately/Very/Extremely Inverse; IEC (and BS) A/B/C and Short Inverse; GE IAC Inverse,
Short/Very/ Extremely Inverse; I
2
t; FlexCurves™ (programmable); Definite Time (0.01 s base
curve)
Curve multiplier:
Time Dial = 0.00 to 600.00 in steps of 0.01
Reset type:
Instantaneous/Timed (per IEEE)
Curve timing accuracy at 1.03 to 20 x pickup:
±3.5% of operate time or ±½ cycle (whichever is greater) from pickup to operate
Voltage restraint:
Modifies pickup current for voltage in the range of 0.1 < V < 0.9 VT Nominal in a fixed linear rela-
tionship
PHASE/NEUTRAL/GROUND IOC
Current:
Phasor only
Pickup level:
0.020 to 30.000 pu in steps of 0.001
Dropout level:
97 to 98% of pickup
Level accuracy:
0.1 to 2.0
×
CT rating:
±0.5% of reading or ±0.4% of rated (whichever is greater)
> 2.0
×
CT rating:
±1.5% of reading
Overreach:
<2%
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:
<16 ms at 3
×
pickup at 60 Hz (Phase/Ground IOC)
<20 ms at 3
×
pickup at 60 Hz (Neutral IOC)
Timer accuracy:
±3% of operate time or ±1/4 cycle (whichever is greater)
PHASE DIRECTIONAL OVERCURRENT
Relay connection:
90
°
(quadrature)
Quadrature voltage:
ABC phase seq.: phase A (V
BC
), phase B (V
CA
), phase C (V
AB
); ACB phase seq.: phase A (V
CB
), phase
B (V
AC
), phase C (V
BA
)
Polarizing voltage threshold:
0.004 to 3.000 pu in steps of 0.001
Current sensitivity threshold:
0.05 pu
Characteristic angle:
0 to 359
°
in steps of 1
Angle accuracy:
±2°
Operation time (FlexLogic operands):
Tripping (reverse load, forward fault):
<
12 ms, typically
Blocking (forward load, reverse fault):
<
8 ms, typically
NEUTRAL DIRECTIONAL OVERCURRENT
Directionality:
Co-existing forward and reverse
Polarizing:
Voltage, Current, Dual, Dual-V, Dual-I
Polarizing voltage:
V_0 or VX
Polarizing current:
IG
Operating current:
I_0
Level sensing:
3
×
(|I_0| –
K
×
|I_1|), IG
Restraint, K:
0.000 to 0.500 in steps of 0.001
Characteristic angle:
–90 to 90° in steps of 1
Limit angle:
40 to 90° in steps of 1, independent for forward and reverse
Angle accuracy:
±2°
Содержание M60
Страница 9: ...TABLE OF CONTENTS M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ix INDEX ...
Страница 10: ...x M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TABLE OF CONTENTS ...
Страница 14: ...1 4 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FOR FURTHER ASSISTANCE CHAPTER 1 INTRODUCTION 1 ...
Страница 208: ...4 88 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL FLEXLOGIC DESIGN USING ENGINEER CHAPTER 4 INTERFACES 4 ...
Страница 494: ...5 286 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL CONTROL ELEMENTS CHAPTER 5 SETTINGS 5 Figure 5 158 Time out mode ...
Страница 552: ...5 344 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TESTING CHAPTER 5 SETTINGS 5 ...
Страница 596: ...7 14 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL TARGETS MENU CHAPTER 7 COMMANDS AND TARGETS 7 ...
Страница 602: ...9 4 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL SATURATION DETECTOR CHAPTER 9 THEORY OF OPERATION 9 ...
Страница 652: ...C 6 M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL COMMAND LINE INTERFACE APPENDIX C COMMAND LINE INTERFACE C ...
Страница 660: ...iv M60 MOTOR PROTECTION SYSTEM INSTRUCTION MANUAL ABBREVIATIONS ...