⚡ load sharing systems (lss)

Load Sharing
Systems (LSS)

Complete Load Sharing Systems – Generator Load Sharing, Isochronous Load Distribution, Droop Control, Digital Load Sharing Modules, Protection Relays & Integration. Our experienced team (OEM-trained, 15+ years) supports MAN B&W, Wärtsilä, Caterpillar, MAK, Rolls-Royce, Bergen, Niigata, Yanmar, ABC, Daihatsu, SEMT Pielstick and more.

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250+
Load sharing retrofits

Woodward, DEIF
OEM trained on major makes

24/7
load sharing support

Experienced
team – 15+ years

🔧 real vessel experience

Our engineers have worked on Load Sharing Systems for generators driven by MAN B&W 23/30, 28/32, 32/40; Wärtsilä 20, 26, 32; Caterpillar 3500/3600; MAK M20/M32; Rolls-Royce Bergen; Niigata; Yanmar; ABC; Daihatsu; SEMT Pielstick and more.

From prime movers to generator control panels – we cover all load sharing aspects.

⚡ load sharing systems (lss)

KW & KVAR Sharing · Isochronous · Droop · Cross Current

✓ Generator Load Sharing Systems – Woodward, DEIF, ComAp, GAC
✓ Isochronous Load Sharing – speed/frequency controlled
✓ Droop Control (speed droop / voltage droop) – 3% to 5% adjustable
✓ Cross Current Compensation – reactive load sharing
✓ Digital Load Sharing Modules – LSSC, LSM, GCP, DGC
✓ Load Sharing with Shaft Generators – PTO/PTI modes
✓ Synchronizing and Paralleling Systems
✓ Reverse Power / Minimum Power Protection
✓ Load Dependent Start/Stop (spinning reserve)
✓ Automatic Load Sharing between dissimilar gens
✓ Integration with PMS and SCADA
✓ Retrofit of Obsolete Load Sharing Cards

Experienced with Woodward, DEIF, ComAp, GAC, Basler, Siemens, ABB – our team delivers.

🎛️ load sharing controllers

Woodward · DEIF · ComAp · GAC · Basler

Controller makes & models

✓ Woodward – LSSC (Load Sharing & Speed Control), 2301A, EASYGEN 1000/3000, UG, PEC
✓ DEIF – AGC 100/150/200/400, PPU 300, Multi-line 2
✓ ComAp – InteliGen NTC, InteliGen 1000, InteliMains
✓ GAC (Governor America Corp) – LSM, LSC, ESG, ESD
✓ Basler – DGC-2020, DGC-500, DECS-150/250
✓ Deep Sea Electronics – DSE8610, DSE8660, DSE8xxx marine
✓ Siemens – Siprotec, S7-1200/1500 based load sharing
✓ ABB – PGC, Symphony Plus load sharing

Load sharing modules / cards

✓ Woodward LSSC (Load Sharing & Speed Control) – 9907-120, 9907-130
✓ Woodward LSM (Load Sharing Module) – 9905-xxx
✓ GAC LSM (Load Sharing Module) – 250, 251, 252 series
✓ Basler LSM – BE1-25, BE1-11
✓ DEIF load sharing lines – CAN bus based
✓ ComAp load sharing – InteliShare, IB-LS
✓ ABB Unitrol – load sharing for excitation
✓ Siemens S7 function blocks – load sharing via Profibus

🔧 prime mover & generator integration

Diesel / Gas / Shaft Generators · Engine Governors

Engine makes & models (genset)

✓ MAN B&W – 23/30, 28/32, 32/40, 48/60 (genset control, load sharing)
✓ Wärtsilä – 20, 26, 32, 46F (load sharing integration)
✓ Caterpillar – 3500, 3600 series, C32, C280 (ADEM, electronic governors)
✓ MAK – M20, M25, M32, M43 (load sharing with Woodward/DEIF)
✓ Rolls-Royce Bergen – B32:40, C26:33 (load sharing retrofits)
✓ Niigata – 6L, 8L, 12L series gensets
✓ Yanmar – 6EY, 8EY, 12EY (aux genset load sharing)
✓ ABC – DZ, VDZ genset engines (load sharing upgrades)
✓ Daihatsu – DK, DC series (load sharing modules)
✓ SEMT Pielstick – PA, PC series gensets

Governor & excitation interface

✓ Woodward governors – UG, PGA, ProAct, 505/505E with load sharing
✓ Heinzmann – digital governors with load sharing option
✓ GAC – ESG, ESD, APECS with load sharing modules
✓ Basler DECS – excitation with load sharing (cross-current)
✓ ABB Unitrol – AVR with load sharing compensation
✓ Siemens Sipart – excitation control
✓ Shaft generator load sharing – frequency converters (VACON, ABB, Siemens)

🔄 synchronizing & paralleling

Auto Synchronizer · Check Sync · Paralleling

✓ Auto synchronizers – Woodward (SPM, easYgen), DEIF (AGC), ComAp (InteliSync)
✓ Check sync relays – Basler BE1-25, SEL-25, Siemens 7UM
✓ Manual synchronizing lamps / scopes – retrofit to digital
✓ Dead bus closing – first on, fast transfer
✓ Closed bus transfer (make before break) – no break
✓ Open bus transfer (break before make) – with fast sync
✓ Paralleling switchgear control – ACB, MCCB integration
✓ Generator protection during parallel operation
✓ Load sharing during parallel mode – kW/kvar
✓ Island mode / infinite bus operation

⚡ reactive load sharing

KVAR Sharing · Cross Current · Droop · AVR

Reactive load sharing methods

✓ Cross current compensation – CT based sharing
✓ Voltage droop – 2% to 5% adjustable
✓ Line drop compensation
✓ Digital AVR with load sharing – Basler DECS, ABB Unitrol
✓ Reactive power sharing via CAN bus – DEIF, ComAp
✓ Integration with excitation systems
✓ VAR/PF control modes

AVR / excitation makes

✓ Basler – AVC63, AVC125, DECS series
✓ Stamford – SX, MX, AS series AVRs
✓ Leroy Somer – R450, R610, D510
✓ ABB – Unitrol 1000/6000
✓ Siemens – Sipart, Thyripol
✓ Mitsubishi – AVR for marine gens
✓ Newage – various AVRs with load sharing options

🛡️ protection relays & safety

Reverse Power · Overcurrent · Under/Over Voltage

Protection relay makes

✓ Siemens – Siprotec 5, 7UM, 7SR
✓ ABB – REF, REM, REG 670 series
✓ Schweitzer (SEL) – SEL-700G, 710, 751
✓ GE Multilin – G60, 750, 850
✓ DEIF – PPM 300, 587
✓ Basler – BE1-11, DGC-2020 integrated protection
✓ Woodward – easYgen protection functions

Protection functions integrated with load sharing

✓ Reverse power (32) – prevent motoring
✓ Overcurrent (50/51) – instantaneous/IDMT
✓ Under/over voltage (27/59)
✓ Under/over frequency (81U/81O)
✓ Loss of excitation (40)
✓ Negative phase sequence (46)
✓ Differential protection (87G)
✓ Load shedding trigger (32/81U)

🔧 lss retrofit & troubleshooting

Modernization · Legacy Cards · Diagnostics

✓ Legacy load sharing card replacement – Woodward LSSC, LSM, GAC LSM, Basler
✓ PLC-based load sharing – Siemens, Rockwell, Mitsubishi, B&R
✓ HMI upgrade for load sharing display – touchscreen, trending
✓ Droop to isochronous conversion – digital controllers
✓ Synchronizer retrofit – analog to digital (SPM, DEIF, ComAp)
✓ AVR load sharing upgrade – cross current to digital
✓ Load sharing troubleshooting – on-site diagnostics, software validation
✓ Network integration – Modbus, Profibus, CANopen, Ethernet/IP for load sharing data
✓ Spare parts supply – for all major load sharing makes
✓ Load sharing card testing & repair – bench test, calibration

🌍 lss service coverage

Vessels We Serve with Load Sharing Expertise

Vessel Types

✓ Tankers (VLCC, Aframax, Product)
✓ Bulk Carriers (Capesize, Panamax)
✓ Container Vessels (Post-Panamax)
✓ LNG / LPG Carriers
✓ Offshore Vessels (PSV, AHTS, OSCV)
✓ Drilling Rigs (Jack-up, Semi-sub)
✓ FPSO / FLNG / FSRU
✓ Ro-Ro / PCTC / Car Carriers
✓ Cruise Ships / Ferries
✓ Naval Vessels

Global Service Locations

✓ UAE – Dubai, Abu Dhabi, Fujairah
✓ India – Mumbai, Kochi, Chennai, Kandla
✓ Singapore – Jurong, Tuas
✓ Middle East – Qatar, Saudi, Kuwait
✓ Europe – Rotterdam, Hamburg, Piraeus
✓ Asia – South Korea, China, Japan
✓ Worldwide – all major ports and shipyards

⚡ 24/7 load sharing support

Need Load Sharing System
service or retrofit?

Our load sharing engineers provide complete installation, troubleshooting, retrofit, and repair services for all load sharing systems – Woodward, DEIF, ComAp, GAC, Basler, AVR integration, generator paralleling. Available 24/7 worldwide.

Request LSS service Email LSS engineers

Email: service@seanav.org | Website: www.seanav.org

Load Sharing
Systems (LSS)