D550 Genuine Leroy Somer AVR offers excitation currents of up to 7 A while maintaining high reliability and precision for SHUNT, permanent magnet (PMG), or AREP (auxiliary winding) excitation types.
D550 Genuine Leroy Somer AVR 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 has sophisticated safeguards like as over-excitation limiting and voltage sensing loss, as well as voltage droop enabling Genset parallel operation. The D550 additionally has a Load Acceptance Module (LAM) to deal with load impact situations.
|Excitation mode||SHUNT, AREP, PMG|
|Rated excitation current||7 A|
|Regulation accuracy (+/- %)||0.25 %|
|Frequency range||10 – 400 Hz|
|Voltage setting range (+/- %)||30 %|
|kU/F limitation||0.5 < k< 3|
|Loss of sensing voltage||✓|
|Short circuit current limitation||✓|
|Parallel operation between alternators||✓|
|Load Acceptance Module (LAM)||✓|
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