The D550 is a digital automatic voltage regulator (AVR) for alternators with rated field current up to 7 A. It offers a vast array of regulation modes suitable for all power generation applications, including grid-connected configurations.

The D550 is a digital automatic voltage regulator (AVR) for alternators with rated field current up to 7 A. It offers a vast array of regulation modes suitable for all power generation applications, including grid-connected configurations.

This manual describes how to install, use, set up and maintain the D550 AVR. The purpose of this AVR is to regulate alternators with a field current of less than or equal to 7A in continuous operations, and 15A maximum in the event of short-circuit for 10 seconds maximum. 1

The D550 is a digital automatic voltage regulator (AVR) for alternators with rated field current up to 8 A at 55°C. It ofers a vast array of regulation modes suitable for all power generation applications, including grid-connected configurations.

Within Leroy-Somer's range of digital voltage regulators, the new D550 replaces the D510C and adds to the D350 (excitation up to 5 A) and D700 (25 A) to provide a complete offer with features and performance adapted to the era of network digitalization.

The CAN BUS interface is available on the D550 on its D-SUB male connector placed near LEDs indicators. This connector drives CAN BUS lines and specific signals for D550 options which can be connected on it.

The D550 Leroy Somer digital automatic voltage regulator AVR provides excitation current up to 7 A with excellent reliability and precision for SHUNT, permanent magnet (PMG) or AREP (auxiliary winding) excitation types.

The D550 stands out as a digital automatic voltage regulator (AVR) engineered to handle alternators with a rated field current of up to 8 A even at high temperatures of 55°C. Its versatile regulation modes cater to various power generation setups, including grid-connected systems.

The D550 digital automatic voltage regulator provides excitation current with excellent reliability and precision for SHUNT, permanent magnet generator (PMG) or AREP (auxiliary winding) excitation types. Frequency Range: 10 Hz - 400 Hz. Voltage Setting Range (+/- %): 30%. Compatible with: LSA 40; LSA 42.3; LSA 44.3; LSA 46.3; LSA 47.2; LSA 49.3 ...

EasyReg Advanced is a dedicated software to configure and monitor Leroy-Somer digital Automatic Voltage Regulators (AVR). It is compatible with the D700, D550 and D350. EasyReg Advances includes a complete set of tools: EasyReg Advanced support both Ethernet and USB communication protocols.