GE MM200 - MM200 Technical Specifications

CHAPTER 1: INTRODUCTION SPECIFICATIONS
MM200 MOTOR MANAGEMENT SYSTEM – INSTRUCTION MANUAL 1–7
Specifications
NOTE
NOTE:
Specifications are subject to change without notice.
Protection specifications
ACCELERATION TIMER
Pickup:......................................................................I
av
> I
cutoff
Dropout: ..................................................................I
av
< I
pu
or timer expired
Time delay: ............................................................ 0.5 to 250.0 seconds in steps of 0.1
Timing accuracy:................................................ ±500 ms or 1.5% of total time
Elements: ................................................................ trip and alarm
CURRENT UNBALANCE
Range: ...................................................................... 4 to 40% in steps of 1%
Accuracy:................................................................ ±2%
Time delay: ............................................................ 1 to 60 seconds in steps of 1 s
Timing accuracy:................................................ ±500 ms
Elements: ................................................................ trip and alarm
GROUND FAULT (CBCT)
Pickup level:........................................................... 0.5 to 15.0 A in steps of 0.1 A
Trip time delay on start:................................... 0 to 10 s in steps of 0.1 s
Trip time delay on run: ..................................... 0 to 5 s in steps of 0.1 s
Alarm time delay on start/run:..................... 0 to 60 s in steps of 1 s
Timing accuracy:................................................ ±100 ms or ±0.5% of total time
Elements: ................................................................ trip and alarm
LOAD INCREASE
Pickup level:........................................................... 50 to 150% of FLA in steps of 1%
Timing accuracy:................................................ ±500 ms
Elements: ................................................................ Alarm
MECHANICAL JAM
Pickup level:........................................................... 1.01 to 4.50 × FLA in steps of 0.01
Time delay: ............................................................ 0.1 to 30.0 seconds in steps of 0.1
Timing accuracy:................................................ ±500 ms
Elements: ................................................................ trip
CALCULATION METHOD
If I
AV
≥ I
FLA
: ( [I
M
- I
AV
] /I
AV
) x 100%
If I
AV
≤ I
FLA
: ( [I
M
- I
AV
] /I
FLA
) x 100%
Where:
I
AV
= average phase current
I
M
= current in a phase with maximum deviation from I
AV
I
FLA
= MOTOR FULL LOAD AMPS setpoint