⚡ load shedding & blackout prevention

Load Shedding
Blackout Prevention

Advanced Power Management – Load Sharing, Generator Protection, PMS Integration, Frequency Control, Instant Blackout Recovery. 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.

Request service Contact engineers

200+
PMS / load sharing refits

MAN, Wärtsilä
OEM trained on major makes

24/7
emergency response

Experienced
team – 15+ years

🔧 real vessel experience

Our engineers have implemented load shedding / blackout prevention on vessels with MAN B&W ME/ MC, Wärtsilä RT-flex, Sulzer, Caterpillar 3500/3600, MAK M43, Rolls-Royce Bergen, Niigata, Yanmar, ABC, Daihatsu, SEMT Pielstick and more.

From PMS integration to high-speed bus transfer – we cover all aspects.

⚡ power management systems (pms)

Load Sharing · Gen Protection · Blackout Recovery

✓ Load shedding & prioritization – trip non-essential consumers
✓ Generator protection – overload, reverse power, under freq
✓ Blackout prevention – spinning reserve, load dependent start
✓ Fast load reduction – for shaft generator/PTO modes
✓ Instant blackout recovery – auto start/ sync of standbys
✓ PMS integration – with propulsion control, thrusters
✓ Frequency/load control – isochronous, droop
✓ High-speed bus transfer – for vital consumers
✓ Shaft generator/GENOPTO management
✓ Emergency generator auto start/stop
✓ Load sharing (active/reactive) – digital/analog
✓ Integration with IAS/AMS/ECS

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

🔋 power management systems (pms)

PMS · Load Sharing · Generator Control

PMS makes & integrations

✓ Kongsberg – K-PMS, K-Chief
✓ Norcontrol – DataChief, AutoChief PMS
✓ Lyngsø – X-Mod, X-PMS
✓ Siemens – Siship, S7-400 based PMS
✓ ABB – ECS, PMS 800, Marine & Ports
✓ Wärtsilä – Nacos, UNIC PMS
✓ Valmet – DAMATIC, DNA PMS
✓ MAN CEON – cloud PMS modules
✓ Mitsubishi – integrated automation
✓ Rockwell / Allen Bradley – PLC based

Generator & Load control

✓ Woodward – EasyGen, LSSC, GCP
✓ DEIF – AGC, PPU, multi-liner controllers
✓ ComAp – InteliGen, InteliMains marine
✓ Deep Sea Electronics – DSE8xxx marine
✓ Basler – DGC, DECS load sharing
✓ GAC – LSM, LSC, digital load sharing
✓ SEL (Schweitzer) – protection relays
✓ Siemens Siprotec – generator protection

⚡ load shedding & blackout prevention

Fast load reduction · priority trip · recovery

Load shedding strategies

✓ Real-time power monitoring – generator kW/ kvar
✓ Load dependent start/stop – based on spinning reserve
✓ Shedding priority tables – non-essential, semi-essential, essential
✓ Fast load reduction (FLR) – for shaft generator/PTO trip
✓ Under-frequency load shedding (UFLS)
✓ kW and kvar based shedding
✓ Manual / semi-auto override
✓ Integration with propulsion drives – reduce thrust/pitch

Blackout prevention & recovery

✓ Spinning reserve management – % margin
✓ Auto start standby generator – before overload trip
✓ Closed bus transfer / open bus – seamless switching
✓ Blackout detection – <100V, <45Hz
✓ Instant auto synchronizing – dead bus closure
✓ Emergency generator auto connect
✓ High-speed bus transfer (HSBT) for vital consumers
✓ Post-blackout load ramp – avoid second blackout

🔧 generator & prime mover

Diesel / gas / shaft generators

✓ MAN B&W – 23/30, 28/32, 32/40, 48/60 (genset control, load sharing)
✓ Wärtsilä – 20, 26, 32, 46F (PMS integration, load shedding)
✓ Caterpillar – 3500, 3600 series, C32, C280 (ADEM, electronic governors)
✓ MAK – M20, M25, M32, M43 (genset automation)
✓ Rolls-Royce Bergen – B32:40, C26:33 (load sharing & blackout prevention)
✓ Niigata – 6L, 8L, 12L series gensets
✓ Yanmar – 6EY, 8EY, 12EY (aux & emergency gensets)
✓ ABC – DZ, VDZ genset engines (PMS retrofits)
✓ Daihatsu – DK, DC series (aux genset control)
✓ SEMT Pielstick – PA, PC series gensets
✓ Shaft generators – PTO/PTI, frequency converters (Siemens, ABB, VACON)
✓ Emergency generators – MTU, Scania, Volvo Penta (auto start / blackout recovery)

⚙️ propulsion & thruster integration

Load sharing with CPP, thrusters, shaft gen

Propulsion load control

✓ CPP pitch reduction – on overload / shaft gen trip
✓ Main engine power limit – via ShaPoLi / EPL
✓ Thruster power limiting – Brunvoll, Schottel, Ulstein
✓ DP system load feed – to PMS for total power
✓ Azimuth / Z-drive load reduction
✓ Integration with MAN Alpha / Wärtsilä Lips CPP
✓ Combinator curve adaptation during load shed

Shaft generator / PTO cases

✓ PTO trip fast load reduction – reduce propulsion instantly
✓ Genopto / Shaft gen control – frequency/voltage support
✓ Blackout recovery with shaft gen – re-sync
✓ Load sharing between shaft gen & diesel gens
✓ Integrated with frequency converters (VACON, ABB, Siemens)
✓ Closed bus transfer PTO/PTH modes

🛡️ generator protection & relays

Reverse power · overcurrent · under voltage

Protection relays – makes

✓ Siemens – Siprotec 5, 7UM, 7SR
✓ ABB – REF, REM, REG 670
✓ Schweitzer (SEL) – SEL-700G, 710, 751
✓ GE Multilin – G60, 750, 850
✓ DEIF – PPM, 587, multi-line
✓ Basler – BE1-11, DGC-2020
✓ Woodward – LSSC, easygen relay functions
✓ ComAp – InteliGen relays

Protection functions

✓ Reverse power / minimum power
✓ Overcurrent (instantaneous, IDMT)
✓ Under/over voltage & frequency
✓ Loss of excitation / field failure
✓ Negative phase sequence
✓ Stator earth fault / rotor earth fault
✓ Overload / load shedding trigger
✓ Differential protection (87G)

🔧 retrofit & troubleshooting

Modernization · Legacy PMS · Diagnostics

✓ Legacy PMS modernization – replacing obsolete load sharing modules
✓ PLC-based load shedding – Siemens, Rockwell, Mitsubishi, B&R
✓ HMI upgrade for power management – touchscreen, trending
✓ Blackout prevention retrofit – fast load reduction / auto synchronizers
✓ Load sharing card replacement – Woodward, GAC, Basler
✓ Generator protection upgrade – numerical relays, communication
✓ Frequency converter integration – for shaft gen/PTO stability
✓ PMS troubleshooting – on-site diagnostic, software validation
✓ Network integration – Modbus, Profibus, CANopen, Ethernet/IP
✓ Spare parts supply – for all PMS / load shedding makes

🌍 service coverage

Vessels We Protect from Blackout

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 blackout prevention support

Need Load Shedding or Blackout
Prevention retrofit?

Our power management engineers provide complete installation, troubleshooting, retrofit, and repair for all load shedding & blackout prevention systems – PMS, generator protection, load sharing, frequency control, blackout recovery. Available 24/7 worldwide.

Request service Email engineers

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

Load Shedding
Blackout Prevention