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D550

€1,810.00
Tax included

The D550 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.

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D550 includes advanced protections such as over-excitation limitation and voltage sensing loss, and also features voltage droop for genset parallel operation. The D550 is also equipped with a Load Acceptance Module (LAM) to handle load impact events.

The D550 AVR is also optimized for grid paralleling operation, and complies with the latest grid code regulations, including the latest German grid code regulations VDE 4110 and VDE 4105. In this context, the D550 also includes active & reactive reverse power alarms.

Key specifications :

Technology Digital
Excitation mode SHUNT, AREP, PMG
Rated excitation current 7A
Regulation accuracy (+/-%) 0.25%
Frequency range 10 - 400Hz
Voltage setting range (+/-%) 30%
kU/F limitation 0.5 < k < 3
Loss of sensing voltage
Over-excitation limitation
Short circuit current limitation
Voltage drop
Parallel operation between alternators
Load acceptance module (LAM)

Configuration & setup :

D550 can be configured using the Leroy-Somer EasyReg Advanced software.

Data sheet

LSA compatible products
LSA 40
LSA 42.3
LSA 44.3
LSA 46.3
LSA 47.3
LSA 49.3
LSA 50.2
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