200+
ALTS projects
Caterpillar, MTU
OEM trained on major gensets
24/7
ALTS support
Experienced
team – 15+ years

⚡ automatic load transfer systems (alts)

Generator synchronizing · Load sharing · Breaker control

  • ✓ Auto Synchronizing Units – Woodward, ComAp, Deif, Selco
  • ✓ Load Sharing & Load Distribution – isochronous, droop
  • ✓ Generator Protection (ANSI 25/27/32/81)
  • ✓ Breaker Control & Interlocking – ACB, MCCB
  • ✓ Priority Management & Load Shedding
  • ✓ Power Management Systems (PMS) Integration
  • ✓ Remote Start/Stop & Sequencing
  • ✓ Bus Tie Breaker Automation
  • ✓ kW/kVAr Control & Power Factor Regulation
  • ✓ Blackout Recovery & Heavy Consumer Management
  • ✓ SCADA / HMI for Power Plant
  • ✓ Retrofit of old relay logic to digital ALTS

Experienced with ABC, Daihatsu, Bergen, Yanmar, Caterpillar, MTU, Niigata – our team delivers.

🔧 generator sets & engines

Main & auxiliary genset experience

Genset engine makes & models

  • ✓ MAN – 7L21/31, 9L27/38, 12V28/33D
  • ✓ Wärtsilä – 4L20, 6L26, 9L32, 12V46
  • ✓ Caterpillar – 3406, 3412, 3508, 3512, 3516, 3616
  • ✓ MTU – 396, 4000, 8000 series
  • ✓ Yanmar – 6EY18, 6EY22, 8EY26
  • ✓ Daihatsu – DK-20, DC-32
  • ✓ ABC – 6DZC, 8VDZC, 12VDZC
  • ✓ Bergen – B32:40, C25:33
  • ✓ Niigata – 6L16X, 8L28HX
  • ✓ Cummins – KTA19, QSK23, QSK60
  • ✓ AKSA, Perkins, Scania, Deutz

Alternator & controller makes

  • ✓ Alternators: Leroy‑Somer, Stamford, Mecc Alte, Marelli, Kato
  • ✓ AVR: Basler, DECS, Leroy‑Somer R438/R450
  • ✓ Genset controllers: ComAp (InteliGen), Deif (AGC), Woodward (EasyGen), Selco, Deep Sea, ABB
  • ✓ Protection relays: Siemens, ABB, Schneider, GE Multilin
  • ✓ Switchgear: ABB, Siemens, Terasaki, L&T
  • ✓ PLCs: Siemens S7, Rockwell, Mitsubishi, B&R

🎛️ alts controllers & synchronizers

ComAp · Deif · Woodward · Selco · ABB

Multi-set controllers

  • ✓ ComAp InteliGen – NTC, NT, NTC BaseBox (load sharing, sync)
  • ✓ Deif AGC – AGC 200/400/500, PPM 300/600
  • ✓ Woodward easYgen – 1000/2000/3000/ LS-5 series
  • ✓ Selco S系列 – S2000, S3000, S5000 (Genset controllers)
  • ✓ Deep Sea Electronics – DSE8610, DSE8620, DSE8660
  • ✓ ABB PGC – Power Generation Controllers
  • ✓ Bernini – Gensys, Multifunction relays

Auto synchronizers & protection

  • ✓ Woodward SPM – Synchronizer & Load Sharing
  • ✓ Basler DGC-2020HD – Digital genset controller with sync
  • ✓ Schweitzer SEL-700G – Generator protection relay
  • ✓ Beckwith M‑3425A – Intertie protection & sync
  • ✓ ZIV 5IRG – Digital generator relay
  • ✓ Sync check relays (ANSI 25) – ABB SPAU 140, Siemens 7VE61

⚖️ load sharing & power management

kW/kVAr sharing · Priority · Shedding · Restoration

  • ✓ Isochronous load sharing – kW (real power) via CAN/LAN
  • ✓ Droop control for legacy systems
  • ✓ Automatic load dependent start/stop
  • ✓ Load shedding – priority based (ANSI 81)
  • ✓ Heavy consumer blocking & ramp control
  • ✓ Power factor control (kVAr sharing)
  • ✓ PMS integration with Propulsion Control / IAS – Kongsberg, Norcontrol, Lyngsø, Valmet
  • ✓ Generator protection against reverse power, overload, overcurrent
  • ✓ Bus transfer (AMF / mains failure)
  • ✓ Blackout recovery sequence
  • ✓ Analog / digital I/O expansion for old switchgear
  • ✓ SCADA visualization – touch panel, PC, web

🔄 automatic transfer switches

ATS · Breaker interlock · Bus tie · Shore connection

Transfer switches & breakers

  • ✓ Automatic Transfer Switches (ATS) – ABB OTM, Socomec, ASCO, GE Zenith
  • ✓ ACB retrofitting & motorising – ABB Emax, Terasaki AR, Siemens 3WL, L&T C-power
  • ✓ Bus tie breaker automation – synchronising & sectionalising
  • ✓ Shore connection changeover – cold ironing compatibility
  • ✓ Breaker control via PLC / relay logic
  • ✓ Mechanical & electrical interlocking schemes

Control & monitoring

  • ✓ Breaker status & trip indication
  • ✓ Remote close / open via mimic panel
  • ✓ Position feedback (aux contacts, encoders)
  • ✓ Spring charging motor control
  • ✓ Under‑voltage / shunt trip release supervision
  • ✓ Integration with AMS / PMS

🔧 alts retrofit & troubleshooting

Modernization · Legacy switchgear · Diagnostics

  • ✓ Legacy ALTS modernization – replacing dated sync relays and load sharers
  • ✓ PLC-based power management – Siemens S7-1500, Rockwell CompactLogix
  • ✓ HMI upgrade for power plant – WinCC, Ignition, Citect
  • ✓ Retrofit of 1980s Woodward (SPM, EGB) to digital EasyGen
  • ✓ Generator protection relay upgrade – from electromechanical to numerical
  • ✓ Load sharing card replacement (Woodward 2301, 2500)
  • ✓ Frequency transducer & speed sensor troubleshooting
  • ✓ Breaker control wiring & interlock diagnosis
  • ✓ Communication gateway setup – Modbus TCP/RTU, Profibus, IEC 61850
  • ✓ Spare parts supply for all ALTS makes

🌍 alts service coverage

Vessels & Rigs We Serve with ALTS Expertise

Vessel types

  • ✓ Tankers (VLCC, Aframax, Product)
  • ✓ Bulk Carriers (Capesize, Panamax)
  • ✓ Container Vessels
  • ✓ 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
  • ✓ Mega Yachts
  • ✓ Naval vessels
  • ✓ Power barges / offshore platforms

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
  • ✓ Africa – Nigeria, South Africa, Egypt
  • ✓ Americas – Houston, Rio, Panama
  • ✓ Worldwide – all major ports and shipyards

⚡ 24/7 automatic load transfer support

Need ALTS service, retrofit, or
load sharing troubleshooting?

Our ALTS engineers provide complete installation, troubleshooting, retrofit, and repair services for all automatic load transfer systems – synchronizing, load sharing, generator control, ATS. Available 24/7 worldwide.

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