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MX350 AUTOMATIC TRANSFER CONTROL SYSTEM – INSTRUCTION MANUAL
SPECIFICATIONS
CHAPTER 1: INTRODUCTION
Specifications
NOTE
NOTE:
Specifications are subject to change without notice.
Timing specifications
GENERAL TIMING ACCURACY
Accuracy:................................................................±500 ms
Protection specifications
OVERVOLTAGE
Pickup level:...........................................................1.05 to 1.10 × VT in steps of 0.01 (programmable)
Dropout: ..................................................................1.03 to 1.08 × VT in steps of 0.01 (programmable)
Time delay: ............................................................No programmable time delay
UNDERVOLTAGE
Pickup level:...........................................................0.75 to 0.99 × VT in steps of 0.01 (programmable)
Dropout: ..................................................................0.85 to 1.00 × VT in steps of 0.01 (programmable)
Time delay: ............................................................No programmable time delay
OVERFREQUENCY
Pickup level:...........................................................50.1 to 63.0 Hz in steps of 0.1 (programmable)
Dropout: ..................................................................50.0 to 62.9 Hz in steps of 0.1 (programmable)
Time delay: ............................................................No programmable time delay
Accuracy:................................................................±0.05 Hz
UNDERFREQUENCY
Pickup level:...........................................................45.0 to 59.9 Hz in steps of 0.1 (programmable)
Dropout: ..................................................................45.1 to 60.0 Hz in steps of 0.1 (programmable)
Time delay: ............................................................No programmable time delay
Accuracy:................................................................±0.05 Hz
POWER FACTOR
Pickup level:...........................................................0.99 lag to 0.99 lead in steps of 0.01 (programmable)
Dropout: .................................................................. hysteresis
Time delay: ............................................................0 to 65535 seconds in steps of 1
Accuracy:................................................................±0.05
VOLTAGE IMBALANCE
Pickup level:...........................................................0.05 to 0.20 in steps of 0.01 (programmable)
Dropout: ..................................................................0.03 to 0.18 in steps of 0.01 (programmable)
Time delay: ............................................................1 to 60 seconds in steps of 1
CURRENT IMBALANCE
Range:......................................................................4 to 40% in steps of 1
Pickup level:...........................................................0.04 to 0.40 in steps of 0.01 (programmable)
Time delay: ............................................................1 to 60 seconds in steps of 1 s
Timing accuracy: ................................................±500 ms
Elements:................................................................alarm
Accuracy:................................................................±2%
