MEC-100 series

ModelMEC-100
Frame size400 ÷ 900
TechnologyDIGITAL
RegulatorMEC-100 series
Part numberM71FA310A
M71FA320A
ComplianceCE
DNV
  • Main Data
  • Electrical characteristics
  • Features
  • Dimensions and weight

Main Data

Generator frame sizeOn request
160÷900
AVR supplyAuxiliary winding*,
mains
Voltage sensingSingle phase
Voltage remote controlArrangement
Radio interference supressorArrangement for external filters
MEC 100 seriesM71FA310A
M71FA320A
Over-exitation deviceArrangement for varicomp
Parallel operation with the mainsInternal
Parallel operation with similar generatorsArrangement
Standard protectionsField over-current,
field over-voltage,
generator over/under voltage,
generator over-current,
loss of sensing
LimitersUnder-frequency,
over/under-excitation
FunctionPC interface,
soft start,
auxiliary inputs,
contact inputs

Electrical characteristics

Power supply voltage170 ÷ 277 Vac @ 50-400 Hz
Power supply sourceAuxiliary windings, mains, PMG
Voltage build-up5 Vac
Voltage sensing type1-phase / 3-phase
Voltage sensing range100 ÷ 500 Vac
Current sensing type1-phase
Current sensing range1 A - 5 A
Maximum continuative field current0 ÷ 10 Adc
Maximum forcing field current0 ÷ 20 Adc
Maximum field voltage250 Vdc
Field resistance3 Ω ÷ 20 Ω
Regulation accuracy from no load to full load±0.25 %
Steady state accuracy±0.1 %
Accuracy with ±4% engine governing±1 %
PF / VAR / FCR modes±2 %
Voltage matching±0.5 %
Thermal Drift±0.5 %
Response time1 cycle
Operating temperature-30°C ÷ +70°C
Storage temperature-40°C ÷ +80°C

Features

InterfaceMEC-100 Interface System software
FunctionDroop compensation
Soft start
Voltage matching
ProtectionUnder-frequency limiter
Over-excitation limiter
Under-excitation limiter
Field over-voltage
Field over-current
Generator over-voltage
Generator under-voltage
Generator over-current
Loss of sensing
Diode monitoring
Control2 external DC current inputs (4/20mA)
8 digital contact input
2 digital outputs

Dimensions and weight

L353 mm
B183,5 mm
K322 mm
J148,5 mm
H53 mm
D4.5mm
Weight2000g
Drawing

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