AVR D350 Leroy Somer Voltage Regulator
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The D350 Leroy Somer digital automatic voltage regulator AVR for industrial alternators provides excitation current up to 5 A with excellent reliability for permanent magnet (PMG) or AREP (auxiliary winding) excitation types.
Leroy Somer AVR D350 includes advanced protections such as over-excitation limitation and voltage sensing loss. It also includes speed detection capabilities, with over- and under-speed alarms. Leroy Somer D350 Voltage Regulator also features voltage droop for genset parallel operation, and it is equipped with a Load Acceptance Module (LAM) to handle load impact events.
Details
Specifications for LEROY SOMER D350 AVR:
Technology: Digital
Excitation mode SHUNT, AREP, PMG
Rated excitation current 5 A
Regulation accuracy (+/- %) 0.25 %
Frequency range 10 – 100 Hz
Voltage setting range (+/- %) 10 %
kU/F limitation 0.5 < k< 3
Loss of sensing voltage ✓
Over-excitation limitation ✓
Short circuit current limitation ✓
Voltage droop ✓
Parallel operation between alternators ✓
Load Acceptance Module (LAM) ✓
Compatible Leroy Somer Alternators:
LSA 40
LSA 42.3
LSA 44.3
LSA 46.3
LSA 47.2
LSA 49.3
LSA 50.2
TAL 40
TAL 42
TAL 44
TAL 46
TAL 47
TAL 49
Configuration & setup
D350 can be configured using the Leroy-Somer EasyReg Advanced software.
Technical notes
ER09 : D350 contactor setting for three different voltages
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