D-Vo

ModelD-Vo
Frame size400 ÷ 900
TechnologyDIGITAL
RegulatorD-Vo
Part number10024470
Compliance

CE
UL 
Grid code: compliant with VDE-AR-N-4110
  • Main Data
  • Electrical characteristics
  • Features
  • Dimensions and weight

Main Data

Generator frame sizeStandard:
≥800 frame size and all HV standard generators
On request:
160 ÷ 710 frame size
AVR supplyAuxiliary winding
PMG
Mains
Voltage sensingSingle phase | 3-phase
Voltage remote controlArrangement
Radio interference supressorArrangement for external filters
Over-exitation deviceArrangement for varicomp | PMG
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 Diode monitoring (DMS)
LimitersUnder-frequency,
over/under-excitation
FunctionPC interface,
Modbus TCP/IP,
FRT detection,
soft start,
9 digital input,
3 digital inputs,
3 analogue inputs,
external potentiometer

Electrical characteristics

Power supply voltage170 ÷ 277 Vac @ 50-400 Hz

Control power supply
24 ÷ 250 Vac @ 50 ÷ 400 Hz - 1-ph/3-ph
Power supply sourceAuxiliary windings, mains, PMG
Voltage build-up6 Vac
Voltage sensing type1-phase / 3-phase
Voltage sensing range100 ÷ 480 Vac
Current sensing type1-phase / 3-phase
Current sensing range1A 
Maximum continuative field current0 ÷ 10 Adc
Maximum forcing field current0 ÷ 20 Adc
Maximum field voltage200 Vdc
Field resistance3 Ω ÷ 20 Ω
Regulation accuracy from no load to full load±0.25% of rated voltage
Steady state accuracy±0.1 % of rated voltage
Accuracy with ±4% engine governing±1 % of rated voltage
PF / VAR / FCR modesPF mode: ±0.005PF(with PF between 0.9 lagging and 0.9 leading)
VAR mode: ±2% of rated power
FCR mode: ±2% of rated exciter current
Voltage matching±2% of rated voltage
Thermal Drift±0.5 % of rated voltage
Response time1 cycle
Operating temperature-30°C ÷ +70°C
Storage temperature-40°C ÷ +80°C

Features

InterfaceD-Vo Software
FunctionDroop compensation
Soft start
Voltage matching
Modbus TCP/IP
FRT detection
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 current inputs (4/20mA)
1 voltage input (+/-10V)
connection to external potentiometer 10kohm available
9 digital contact inputs (8 programmable)
3 digital outputs

Dimensions and weight

L335 mm
B189,6 mm
K322 mm
J148,5 mm
H60 mm
Weight3000g
Drawingimage

INSPIRED SOLUTIONS

Case histories marelli motori

Data center

The digital transformation of every aspect of our life is a great step forward in terms of opportunities and availability.

READ MORE
Case histories marelli motori

WINNING PARTNERSHIP

Our customer is an Italian leading independent energy producer in the market of electricity from clean, renewable and sustainable sources.

READ MORE
Case histories marelli motori

Dredge MacArthur

The General MacArthur will be one of the most efficient and technologically advanced dredges to ever enter the USA dredging market.

READ MORE
Case histories marelli motori

Hurtigruten Vessels

This is one of the largest investments in the Norwegian shipbuild ing industry in the last century, extremely significant considering the current marine industry outlook.

READ MORE
Case histories marelli motori

Al Zour Refinery

Nr. 20 oil&gas generators MJHV 710 LC4 IP55 (17) / IP56 (3) to equip emergency genset for a new refinery in Kuwait.

READ MORE
Case histories marelli motori

powerplant lubalesh

XL generators specifically manufactured for the hydro power sector the largest electrical machines produced by Marelli Motori.

READ MORE