AVRs
AVRs
01/03/2016

Analogue Voltage Regulators
Marelli Motori analogue regulation systems are suitable for low and medium voltage machines. The
regulators are fully insulated in order to mantain high reliability also with severe ambient conditions (high
level of humidity, dust, salt atmosphere) and in case of high vibration level. The AVRs can work both for
single and three phase operations.

 

Digital Regulators
Marelli Motori digital regulation systems provide functional and reliable solutions for the excitation control
of synchronous generators
.These highly integrated and robust AVRs are fully configurable and guarantee
easy commissioning, monitoring and maintenance by user-friendly proprietary HMI (human-machine interface)
software.

A wide range of built-in control functions, protections and operating modes make Marelli Motori digital
AVRs flexible and suitable for a wide range of applications, including marine, hydro and cogeneration. Our
automatic voltage regulator, MEC 100 is DNV type approved.

Standard
160÷225
Auxiliary winding*,
mains
Single phase Arrangement Internal
AVR code
M00FA122A - - - - Under-frequency -


Standard
160÷225
PMG Single phase Arrangement Internal
AVR code
M00FA133A - - - - Under-frequency -


Standard
160÷250
Auxiliary winding*,
mains
Single phase Arrangement Internal
AVR code
M16FA655A - - - Over-excitation Under-frequency -


Standard
500÷560
Auxiliary winding*,
mains
Single phase Arrangement Internal
AVR code
M40FA610A Arrangement for varicomp Arrangement for device Arrangement - Under-frequency Auxiliary inputs


Standard
630÷800
Auxiliary winding*,
mains
Single phase Arrangement Internal
AVR code
M63FA310A Arrangement for varicomp Arrangement for device Arrangement - Under-frequency Auxiliary inputs


On request
630÷800
PMG Three phase Arrangement Internal
AVR code
M40FA644A Arrangement for varicomp Arrangement for device Arrangement Over-excitation Under-frequency Auxiliary inputs


Standard
315÷450
On request
160÷250
Auxiliary winding*,
mains,
PMG
Three phase Arrangement Internal
AVR code
M31FA600A Arrangement for varicomp Arrangement for device Arrangement Over-excitation Under-frequency Auxiliary inputs


On request
160÷900
Auxiliary winding*,
mains
Single phase Arrangement Arrangement for external filters
AVR code
M71FA310A
M71FA320A
Arrangement for varicomp Internal Arrangement Field over-current,
field over-voltage,
generator over/under voltage,
generator over-current,
loss of sensing
Under-frequency,
over/under-excitation
PC interface,
soft start,
auxiliary inputs,
contact inputs