MARINE ELECTRICAL PROBLEMS
DON’T WAIT FOR PORT ARRIVAL.
Marine Electrical Services · Vessel Automation · Switchboards · Power Management Systems · IAS · PMS · Fire & Gas · Dry Dock Modernization & Lifecycle Support.
And how SMEC resolves them — before they become detentions.
Every scenario below has resulted in vessels being detained, drydocks delayed, or voyages cancelled. SMEC is the intervention that stops each one in its tracks.
Your MSB fails at sea. Your class surveyor is arriving in 48 hours.
A main switchboard with 12–15-year-old busbars, ageing ACBs, and a manufacturer who no longer makes replacement parts. One spurious trip in the Indian Ocean and you’re running on the emergency generator, calling every electrical contractor in the region — none of whom have done class-approved MSB work on your vessel type.
SMEC response: Pre-qualified inventory of OEM-compatible ACB, busbars, and protection relays. MSB overhaul teams deployable within 24 hours across India and UAE ports. Class-approved drawings submitted before mobilisation.
Your drydock date is confirmed. Your IAS supplier stopped support three years ago.
DECKMAN, SEAWARE, Lyngsoe, old Kongsberg AMOS-based systems — when the vendor discontinues support, your class surveyor starts asking questions at the annual survey. Your drydock is 90 days away and you have no migration plan, no drawings, and no integrator who understands your existing wiring.
SMEC response: Vendor-agnostic IAS/ERAMS migration using DEIF, Emerson, Phoenix Contact, or custom-engineered systems. Full reverse-engineering of existing installation. Class documentation prepared in parallel with drydock planning.
Your vetting inspector flags your PMS as "no documented preventive maintenance."
You have a Power Management System that has been running for 18 years without a structured maintenance programme. No calibration logs. No load-sharing test records. No alarm setpoint documentation. SIRE 2.0 now asks direct questions about electrical system maintenance — and your answers are exposing the vessel to vetting failure.
SMEC response: Annual Maintenance Contract covering PMS, IAS, MSB, and fire safety systems. All calibrations, test records, and setpoint documentation class-ready and SIRE 2.0 compliant.
Electrical system failure is never just an electrical problem.
electrical scope
related
per day — electrical
breakdown
from general electrical
contractors
detentions — electrical
system deficiencies
It becomes a cargo problem.
When propulsion drives fail or power management systems trip, cargo loading stops. Charterers claim demurrage. Cargo owners file notifications. An electrical outage cascades into a commercial crisis within 24 hours.
It becomes a certification problem.
Class surveyors encountering unremedied electrical deficiencies issue conditions of class or detentions. A PSC inspector who sees an alarm system not functioning raises immediate deficiency notices. Electrical failures don’t stay electrical — they become documentary crises.
It becomes a drydock budget problem.
Unplanned electrical scope discovered in drydock costs three to five times more than pre-planned work. A pre-docking survey by SMEC 60 days before the vessel enters dock converts emergency scopes into budgeted items — protecting your owner’s CAPEX plan.
It becomes a safety problem.
Fire and gas detection systems, emergency shutdown systems, and bridge alarm management systems that develop silent faults put crew at risk. These systems do not announce their failures — they fail at the moment they are most needed.
Complete marine electrical capability — under one accountable partner.
Five service lines. One point of contact. From survey to sea trial, SMEC manages the complete electrical and automation scope of your vessel — with zero sub-vendor dependency.
Main Switchboard (MSB) Supply & Replacement
Factory-built MSBs for vessels up to 60,000 GRT. Full type-tested, class-approved panels with ACB, metering, protection relays, and bus bar systems. Drop-in replacement or new construction.
Emergency Switchboard (ESB) Overhaul
Emergency switchboard inspection, overhaul, and replacement per SOLAS requirements. All ACB functionality tested. Class conditions of class cleared within planned drydock window.
Distribution Board & Lighting Panel Supply
Section boards, distribution panels, lighting control boards for vessel accommodation, cargo, and engine room areas. Custom fabrication with class-approved documentation.
Power Factor Correction Systems
Capacitor bank installation and harmonic distortion mitigation for vessels with high VFD loading. Reduces reactive power penalty and improves generator loading characteristics.
Shore Power Connection Systems
Cold ironing and shore power frequency conversion equipment for vessels operating in emission-controlled areas. Designed for California CARB, EU Green Shipping, and port emission standards.
UPS & Battery Charger Systems
Critical power continuity for navigation, alarm monitoring, and fire detection systems. UPS systems supplied, installed, tested, and maintained under AMC with full IEC 62040 compliance.
IAS / ERAMS Design, Supply & Commissioning
Complete Integrated Automation System and Engine Room Alarm Monitoring System projects — from front-end engineering design through class approval, installation, commissioning, and sea trial sign-off. Vendor-agnostic using DEIF, Emerson, Phoenix Contact, or custom PLC-based platforms.
IAS Migration — Legacy to Modern Platform
Vendor-agnostic migration of end-of-life DECKMAN, SEAWARE, Lyngsoe, Kongsberg K-Chief, and other obsolete systems. Full reverse-engineering of existing I/O, wiring, and sensor configurations. Complete class documentation for each phase.
Power Management System (PMS) Upgrade
PMS upgrades for vessels with obsolete load-sharing controllers, analogue governor systems, or unsupported manufacturer platforms. New systems include automatic load sharing, preferential trip, blackout prevention, and full SOLAS alarm integration.
Engine Room Alarm Monitoring (ERAMS)
Standalone or integrated engine room alarm and monitoring systems. Point-to-point I/O wiring, Modbus/PROFIBUS integration, custom alarm setpoint configuration, and SOLAS 24-hour unattended machinery space compliance.
Boiler & Purifier Control Systems
Boiler management system replacement (including MISSION and equivalent legacy systems), automatic burner controller upgrades, and purifier sequence controller migration. Full documentation and class submission.
Bridge Alarm Management System (BAMS)
Bridge alarm management per SOLAS Ch. IV and MSC.302(87). Central alarm display, watch alarm systems, and integration with IAS and fire detection. Compliant with IACS UR E.22.
VFD Retrofit for Ballast Pumps, Cargo Pumps & Fans
Variable frequency drive installation for pump and fan systems — reducing energy consumption 30–60%, extending motor life, and eliminating direct-on-line starting surges that stress switchboard busbars.
Thruster Drive System Overhaul & Upgrade
Overhaul and modernization of thruster control and drive systems on offshore vessels, PSVs, and SOVs. Drive card replacement, governor tuning, control system interface rewiring, and joystick calibration.
Propulsion Motor Controller Modernization
Replacement and upgrade of main propulsion motor control systems on electric propulsion vessels. Full integration with PMS, IAS, and joystick control systems. Sea trial support included.
Harmonic Filter Installation
Active and passive harmonic filters for vessels with multiple VFDs generating excessive THD. Reduces harmonic distortion to IEEE 519 / IEC 61000 limits, preventing transformer overheating and instrument failures.
Motor Starter & Soft Starter Panels
Direct-on-line, star-delta, and soft starter panels for all deck machinery and engine room auxiliaries. Custom fabrication, class documentation, and commissioning testing.
PLC Panel Design & Supply
Custom PLC panels for deck automation, ballast system control, cargo temperature monitoring, and mooring systems. Siemens S7, Allen Bradley, and Schneider Modicon platforms supported.
Fire Detection System Supply & Overhaul
Marine fire and smoke detection systems — design, supply, installation, and commissioning. Addressable and conventional systems with full SOLAS Chapter II-2 compliance. MSA Safety and custom-designed panels.
Gas Detection Systems (Tankers & LNG)
Fixed gas detection for tankers, LPG carriers, and offshore vessels. HC, H₂S, CO, and O₂ detection with zone-based alarming and ESD integration. Esders calibration support included.
Emergency Shutdown System (ESD)
PLC-based emergency shutdown logic for engine rooms, pump rooms, and cargo areas. Full integration with fire and gas detection, ventilation shutdown, and bridge alarm management.
CO₂ System Control Panel Overhaul
Engine room and cargo hold CO₂ fixed firefighting control panel overhaul. Valve actuator testing, pressure alarm testing, time-delay relay checks, and full SOLAS compliance survey.
BWTS Electrical Integration
Ballast Water Treatment System electrical integration — power supply from MSB, control panel interfacing with IAS, and automation integration. New installation or retrofit to existing BWT units.
ISM Safety System Documentation
Preparation of safety system documentation packages for ISM audits and SIRE 2.0 inspections. Alarm setpoint registers, calibration certificates, maintenance logs, and test records — all class-formatted.
Full Vessel Electrical Modernization Package
End-to-end vessel modernization — MSB, ESB, PMS, IAS, VFDs, and safety systems — planned as a unified project through a single drydock window. Scope-locked pricing, class co-ordination, and sea trial included.
PLC Platform Migration
Obsolete PLC platform (Siemens S5, Mitsubishi A-series, Omron C-series) to modern equivalent. Logic re-programming, I/O mapping, HMI redesign, and complete class submission — without changing field wiring.
HMI Modernization
Replacement of CRT-based and low-resolution HMI screens with industrial touchscreen systems. Full tag database migration, alarm philosophy preserved, and operator training included.
Scrubber / EGC Electrical Integration
Exhaust gas cleaning system electrical integration — power supply from MSB, control panel interfacing with IAS, and automation integration. Class-approved documentation for MARPOL Annex VI compliance.
Cargo Monitoring System (INMCS / IVMP) Modernization
Cargo temperature, pressure, and level monitoring system migration for LPG, LNG, and chemical tankers. INMCS and IVMP replacement with modern Ethernet-based platforms. Cargo class survey support.
Engine Monitoring System (EMS) Upgrade
Main and auxiliary engine performance monitoring system upgrades — cylinder pressure trending, exhaust temperature profiling, and shaft power measurement integration for ISM and condition monitoring compliance.
Single-point accountability from survey to sea trial.
Most electrical contractors hand over to a specialist after the switchboard. SMEC doesn't sub-contract the critical work — we own it from the first drawing to the last test report.
A general electrical contractor accepts the job, then sub-contracts the PLC work. The main vendor blames the sub. The sub blames the main vendor. Your vessel is off-hire and your superintendent is mediating between contractors.
One contract. One engineer. One point of contact. SMEC's in-house team handles engineering, fabrication, installation, commissioning, and class documentation — no sub-contractors for critical scope.
Your contractor has never worked on your vessel class before. They spend the first three days reverse-engineering existing wiring. The drydock window is closing. Class is asking questions.
500+ vessels across all types — tankers, bulk carriers, container ships, OSVs. SMEC engineers have reverse-engineered more vessel electrical installations than most contractors have seen in total.
Your contractor submits drawings after installation starts. Class raises comments. Work has to be redone. The drydock window extends by two weeks and the bill goes up by 40%.
Class submissions happen before installation starts. SMEC's in-house drawing office prepares class-ready electrical and single-line diagrams submitted for class approval 4–6 weeks before dock date.
The contractor completes the job and disappears. Three months later your IAS starts throwing unknown alarms. The contractor no longer has the documentation. Your warranty claim goes nowhere.
Every SMEC project includes a 12-month defect liability period with documented spares. AMC contracts available immediately post-commissioning. Remote diagnostic support for all SMEC systems.
No sub-contractors for critical scope. One contract, one engineer, one accountability chain — from the first drawing to the last test report.
Working with the platforms your vessel already runs
SMEC engineers work with systems from all major marine electrical OEMs — supporting modernization, lifecycle management, migration, and integration projects. Vendor-agnostic assessment. Best-fit specification for your vessel.
MSB panels, VFDs (Altivar), PLCs (Modicon M340/M580), and marine-rated distribution equipment. Our engineers are certified on the full Schneider ecosystem.
PLC platform migration (S5 to S7), Sinamics VFDs, Siprotec protection relays, and Simatic WinCC SCADA. Legacy Siemens reverse-engineering is a SMEC core capability.
Generator controllers, PMS integration, and automatic mains failure systems. DEIF-preferred installer for marine power management applications across India and the UAE.
Marine automation, IAS integration, and control room engineering. Emerson platforms used for PMS and IAS implementations across offshore and commercial vessel applications. SMEC is an authorized service provider for Emerson main engine pneumatics — covering pneumatic control systems, governor controls, and auxiliary engine pneumatic interfaces.
Industrial relay modules, terminal blocks, and Axioline I/O for IAS migration projects. Phoenix Contact PLCnext used for modern marine automation retrofit applications.
Fixed gas detection systems, flame detectors, and fire suppression panel integration for SOLAS II-2 compliant fire and gas system modernization on all vessel types.
Hydraulic and motion control integration for offshore applications. Deck machinery control systems and hydraulic power unit control panel engineering.
Engine monitoring, temperature measurement, and sensor systems for EMS upgrades on main and auxiliary engines. Condition monitoring and performance trending integration.
Engineering problems. Engineering solutions.
Each case below represents a real engineering challenge solved by SMEC’s in-house team — from initial assessment through class-approved commissioning. Client names withheld by confidentiality agreement.
The vessel was operating with ageing switchboard components and obsolete protection devices, increasing the risk of electrical failures during operation. ACBs were beyond rated service life and spare parts for the protection relays were no longer available from the OEM. Class survey was approaching.
- Pre-docking engineering assessment and condition survey
- Main Switchboard modernization — new panels and busbar replacement
- ACB replacement with modern moulded case breakers
- Protection relay upgrade to digital IDMT numerical relays
- Class-approved SLD, GA drawings submitted 5 weeks pre-dock
- Factory Acceptance Test (FAT) with class surveyor witness
- Site Acceptance Test (SAT) and commissioning onboard
- Sea trial support — full load test and protection verification
- ✓Improved electrical reliability across all distribution circuits
- ✓Reduced maintenance requirements — obsolete components eliminated
- ✓Increased system availability with modern protection coordination
- ✓Enhanced operational safety — class survey passed, zero conditions raised
- ✓Project completed within planned drydock window — no overrun
Generator load sharing instability was causing operational interruptions. The existing analogue governor system could not maintain stable kW sharing between generators running in parallel. Blackout risk was escalating as load demands changed. OEM support for the existing PMS controller was no longer available.
- Load sharing analysis and protection coordination study
- Generator synchronization upgrade — analogue to digital DEIF controllers
- PMS integration with automatic load sharing and kW/kVAR control
- Protection logic optimization — preferential trip and blackout recovery
- Dead bus detection and auto-start sequence engineering
- Class drawing submission — SLD, functional description, protection grading
- Sea trial support — blackout test, preferential trip test, load sharing accuracy test
- ✓Stable load sharing — kW imbalance reduced to within 5% of rated load
- ✓Blackout risk eliminated through dead bus detection and auto-recovery
- ✓Improved fuel efficiency — generators operating at optimal load point
- ✓Class survey passed — blackout test witnessed by surveyor
- ✓Reduced operational interruptions — no unplanned shutdowns post-commissioning
Legacy PLC platform reached end-of-life. OEM support discontinued and spare cards unavailable. The vessel’s engine room automation relied on the obsolete platform for over 300 I/O points. Source code was unavailable — the original programme had to be reverse-engineered from the running system.
- Migration strategy — risk assessment, parallel running plan, rollback plan
- PLC reverse-engineering from running system — no source code available
- I/O mapping — 340 field I/O points retained, no rewiring required
- PLC replacement — Siemens S7-1500 platform
- HMI redevelopment — 14 operator screens migrated to TIA Portal WinCC
- Marine SCADA integration and remote diagnostics setup
- Parallel testing on bench, in-service parallel running, class commissioning
- ✓Modern automation platform — full OEM support restored
- ✓Easier maintenance — full source code and documentation handed over
- ✓Improved diagnostics — remote fault monitoring enabled
- ✓Future-ready architecture — expansion I/O available for BWTS integration
- ✓Zero downtime migration — vessel remained in service throughout
What technical buyers say
Feedback from Technical Superintendents, Fleet Managers, Chief Engineers, and Shipyard Project Managers who have worked directly with SMEC’s engineering teams.
SMEC completed the electrical modernization within the planned dry dock schedule. Their engineering team coordinated effectively with the class surveyor during testing and commissioning, helping us return the vessel to service on time and within budget.
Their expertise in marine electrical systems and automation significantly reduced commissioning challenges. The team was technically strong and highly responsive throughout the project — every query was answered by an engineer, not a project coordinator.
From troubleshooting to final commissioning, the engineering support was excellent. Communication was clear throughout and the project execution met our operational expectations. The FAT documentation was class-ready on the first submission.
The Power Management System upgrade significantly improved generator reliability while minimizing downtime during implementation. SMEC managed the parallel running period professionally — we never lost UMS compliance at any stage of the migration.
SMEC demonstrated excellent technical knowledge of marine automation and switchboard modernization. We appreciated their structured engineering approach from planning through commissioning — every phase had a clear deliverable and a named SMEC engineer accountable for it.
Talk to a marine electrical engineer — not a salesperson
Bring your vessel type, your challenge, and your drydock timeline. We’ll tell you what’s realistic.
Request Assessment →Your drydock window is fixed. Your electrical scope shouldn’t be.
The most expensive words in a drydock are "we found something." SMEC eliminates surprises with a pre-docking electrical survey 60 days before your vessel enters dock — converting emergency scopes into budgeted, class-approved work.
SMEC’s Drydock Electrical Package
One partner. Full electrical scope. From pre-docking survey to class sign-off and departure.
for a complete drydock
electrical package
Planned. Documented. Prioritised.
That’s what an AMC from SMEC means.
Reactive maintenance is expensive. An AMC with SMEC shifts your vessel from breakdown-driven repairs to a planned maintenance regime — with predictable costs, priority response, and full documentation for class and vetting.
always on
guarantee
class & vetting
spares dispatch
Every hull type. Every trade route. Every requirement.
SMEC’s marine electrical engineering expertise spans tankers, bulk carriers, container ships, offshore vessels, ferries, and defence craft — with systems engineered to class and operational requirements specific to each vessel type.
How SMEC takes a project from enquiry to commissioned system.
Every SMEC project — from a single VFD retrofit to a full vessel modernization — follows the same structured execution methodology. No surprises. No scope creep. No class rejections.
Technical Enquiry & Survey
Onboard survey of existing systems. Condition assessment. Scope definition report issued within 5 working days.
Engineering Design & Class Submission
In-house drawing office produces class-ready SLD, GA drawings, cable schedules, and load calculations.
Fabrication & Factory Testing
Switchboards and panels fabricated in-house at our Mumbai production facility. Type-tested at factory before delivery.
Installation & Wiring
SMEC installation team mobilised to drydock or port. Wiring, cable routing, and termination per approved drawings.
Commissioning & Class Survey
System commissioning with class surveyor present. Protection relay testing. PMS function testing. Fire detection loop testing.
Sea Trial & Handover
SMEC engineers attend sea trial. Full-load test, blackout test, PMS auto-start test. Commissioning report and as-built drawings delivered.
Technical and commercial questions — answered by engineers.
The questions below are asked by Technical Superintendents, Fleet Managers, and Chief Engineers. The answers are written to be specific enough to be genuinely useful — not marketing copy.
What are the signs of marine electrical system obsolescence? +
Why does a vessel need a PMS upgrade after 15 years? +
When should a vessel upgrade its Integrated Automation System (IAS)? +
How does SMEC handle class approval for electrical modifications? +
What is involved in a Power Management System (PMS) upgrade? +
Which class societies does SMEC work with? +
How can electrical failures impact dry dock schedules and budgets? +
Can SMEC provide emergency onboard support at any port globally? +
Can obsolete PLCs be replaced during a drydock without rewriting the entire programme? +
How do I know if my vessel's VFD systems are due for replacement? +
What is included in a marine electrical Annual Maintenance Contract (AMC) with SMEC? +
What does SMEC's pre-docking electrical survey include? +
What does SMEC do differently from a general electrical contractor? +
What is the difference between ERAMS and IVMP on a tanker? +
How long does a main switchboard (MSB) replacement take in drydock? +
How does SMEC manage harmonic distortion in vessels with multiple VFDs? +
What is the typical cost range for a drydock electrical package? +
Can SMEC replace a MISSION boiler control system during a drydock? +
Can ERAMS be replaced without putting the vessel in drydock? +
What documentation does SMEC provide after completing drydock electrical work? +
Talk To A Marine Electrical Engineer
Breakdown, drydock, ageing systems to modernise, or a fleet to maintain — SMEC responds with a technical assessment, not a brochure. 4-hour response guarantee.
Contact SMEC Directly
Choose the fastest channel for your situation. Emergency breakdown? WhatsApp is fastest. Drydock planning? Email with drawings. Technical question? Call our engineering desk.
Submit A Technical RFQ
Describe your vessel’s requirement — we respond with a technical assessment, guaranteed within 4 hours.
Major Ports Across India, UAE & The Middle East
SMEC engineers can mobilise to any major Indian, UAE, or Middle East port within hours. Emergency breakdown support available 24/7 across all listed locations.