DEIF LSU‑112DG Active Load Sharing Unit

Technical Specifications

Model:LSU‑112DG

Brand:DEIF

System compatibility:Uni‑line series active load‑sharing unit for multi‑generator parallel power station. Cooperates with speed governor via electronic potentiometer EPQ96‑2 / EPN‑110DN. Works together with synchroniser FAS‑113DG / HAS‑111DG for complete genset parallel solution. Without reverse‑power protection function,choose LSU‑113DG if reverse‑power protection is required.

Function:Active‑power load‑sharing controller. Built‑in power and frequency transducer,measures generator AC voltage and CT current. Supports standalone frequency control mode and parallel proportional active‑power sharing mode. Provides two relay speed‑adjust outputs for governor increase/decrease signal. Delivers analogue PS/FS bus‑line signal for inter‑generator load balance. Front‑panel potentiometers adjust proportional range Xp,minimum pulse time Tn,derating setting. Supports isochrone or constant‑power operation mode.

Installation:35mm DIN‑rail mounting or base screw mounting inside switchgear cabinet

Interface:

‑Terminal block:PT voltage input,CT current input

‑Relay output:SG increase / SG decrease for governor control

‑Analogue parallel bus terminals PS / FS

‑Unload input,status signal output

‑Front‑panel setting potentiometers and LED status indicators

Circuit feature:Hardware analogue measuring circuit,surge suppression for AC measuring inputs,fault status relay contact output,non‑software configuration,parameter adjustment via local potentiometers.

Feature:Discontinued classic marine load‑sharing unit,classification society approved;relay contact rating 250VAC / 24VDC,8A resistive load. Distinguished from LSU‑113DG:no built‑in reverse‑power protection function.

Diagnostic:Front‑panel LED indicates power supply,voltage detection and control‑active status;fault status output contact opens under power loss or internal failure.

Power supply:24VDC(18‑32VDC),typical power consumption 2.5W

Protection class:IP20

Horizontal operating temperature:‑25℃ ~ +70℃

Storage temperature:‑40℃ ~ +85℃

Relative humidity:5%‑95% non‑condensing

Shock & vibration:Complies with DNV marine environmental requirement

Weight:0.74kg

Dimensions:145mm ×110mm ×75mm

Certification:DNV,CE,marine type approval

Built‑in function

LSU‑112DG active load‑sharing unit realises proportional active‑power distribution for DEIF multi‑generator parallel system. It sends adjust relay pulses to engine governor to balance load among paralleled gensets. Widely used for marine and industrial generator parallel switchgear cabinets.

Product Brief

LSU‑112DG belongs to DEIF Uni‑line series spare‑part family,active‑power load‑sharing unit without reverse‑power protection. Parameters adjusted by front‑panel potentiometers. When reverse‑power protection is needed,please select LSU‑113DG. Widely applied for genset parallel cabinet maintenance and renovation. ESD anti‑static protection shall be followed during installation.