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Publicaciones del Canal
Safety Procedures for Electric Shock, Drowning, and Serious Injury
#Safety is one of the most important priorities on board a ship and in every industrial workplace. The poster explains the basic actions that should be taken in case of electric shock, drowning, or serious injury. Quick and correct actions can save a person’s life before professional medical help arrives.
In the case of an #electricshock, the first priority is to protect yourself. Never touch the casualty until the electrical power has been switched off or the victim has been separated from the power source using an insulating object such as wood or plastic. High voltage can cause severe burns, heart failure, or respiratory arrest.
If a person is drowning, they should be removed from the water as quickly and safely as possible. Resuscitation should begin immediately if necessary, and the casualty should be treated for hypothermia after #rescue.
For a serious injury, it is important to eliminate any ongoing danger before helping the casualty. Heavy bleeding should be controlled by applying direct pressure. If a spinal injury is suspected, the casualty should not be moved unless absolutely necessary, and the head, neck, and spine should be kept aligned.
The poster also highlights the ABC of #resuscitation:
A – Airway: Check if the casualty is responsive and open the airway by tilting the head and lifting the chin.
B – Breathing: Look, listen, and feel for normal breathing. If the casualty is not breathing, begin rescue breaths.
C – Circulation: Check for a pulse and start chest compressions if there is no pulse, continuing CPR until help arrives or the casualty recovers.
Finally, if the casualty is breathing but remains unconscious, they should be placed in the recovery position to keep the airway open and reduce the #risk of choking.
Following these simple emergency procedures can significantly improve the chances of #survival and reduce the severity of injuries. Every crew member should be familiar with these basic first aid principles and be prepared to act quickly and safely in an emergency.
| 2 |  +4ME EGR O2 Sensor Unit Cabinet common alarm ➡️ Flow to O2 Sensors is low ➡️ Cleaning filters
#MAN #ME #EGR #O2 #Sensors #sensor | 971 |
| 3 |  +9ME EGR O2 Sensor Unit Cabinet common alarm ➡️ Flow to O2 Sensors is low ➡️ Cleaning filters
#MAN #ME #EGR #O2 #Sensors #sensor | 942 |
| 4 |  Happy International Day of the Seafarer! ⚓️
Today we celebrate the dedication, professionalism, and resilience of seafarers around the world. Thank you for keeping global trade moving and connecting people across oceans.
Wishing you calm seas, fair winds, safe voyages, and a swift return home to your loved ones.
Fair winds and following seas! 🌊🚤
#seafarer #seafarers | 706 |
| 5 |  +1#Transformers usually fail and burn out due to overheating caused by excessive current, insulation breakdown, short circuits, poor cooling, moisture ingress, or overvoltage conditions. When a transformer is overloaded, the windings generate excessive heat, which gradually damages the insulation. Once the #insulation deteriorates, internal faults such as inter-turn short circuits can occur, leading to rapid overheating and possible fire.
Another common cause is inadequate #cooling. If cooling fans, oil circulation systems, or radiators are not functioning properly, the transformer temperature can rise above its design limits. Moisture contamination can also reduce the insulation resistance and increase the risk of electrical breakdown.
#Voltage surges caused by lightning strikes, switching operations, or network disturbances may puncture the insulation and initiate internal faults. Loose electrical connections can create localized hot spots, while harmonic currents from nonlinear loads such as frequency converters and rectifiers can increase losses and overheating.
In marine applications, #transformer failures are often related to overload, vibration, aging insulation, high humidity, salt contamination, and insufficient ventilation.
Regular insulation testing, temperature monitoring, and maintenance of cooling systems are essential to prevent transformer damage. | 736 |
| 6 |  +9#MGPS (Marine Growth Prevention System) is a system used on ships to prevent marine organisms such as barnacles, mussels, algae, and shell growth from accumulating inside seawater piping and cooling systems.
Its main purpose is to protect:
- Sea chests
- Seawater cooling pipelines
- Heat exchangers
- Condensers
- Filters
- Main engine and generator cooling systems
How it works
The most common MGPS uses copper and aluminum (or iron) #anodes installed in the sea chest.
When #DC power is applied:
The copper anode releases copper ions (Cu²⁺) into the seawater, which inhibit the growth of marine organisms.
The aluminum or iron anode releases ions that help reduce #corrosion and form a protective coating inside the system.
The treated seawater then circulates throughout the ship’s cooling system.
Main Components
- Control unit
- Rectifier / DC power supply
- Copper anodes
- Aluminum or iron anodes
- Current monitoring circuits
- Alarm and indication system
Common Faults
- Anode Open Circuit
- Anode Short Circuit
- Low Output Current
- High Output Current
- Earth Fault
- Anode Consumption Alarm
Typical Checks by Marine Engineers
- Verify power supply voltage.
- Check anode output current.
- Inspect anode wear and condition.
- Measure insulation resistance of anode cables.
- Check for short circuits to hull.
- Confirm current settings according to the manufacturer’s manual.
A properly functioning MGPS significantly reduces fouling in seawater systems, improves cooling efficiency, and lowers #maintenance costs. | 902 |
| 7 |  Sin texto... | 981 |
| 8 |  ☁️ "Marine Engineering Manuals" is a cloud of instructions, videos, courses and literature (a closed channel and chat for electricians and engineers).
💡 This channel provides a lot of manuals, courses, videos, instructions, drawings, as well as software, firmware for equipment and educational literature. The information on the channel is available online and offline. Just download it to your device and always have access to it, even in the ocean without communication. The database of instructions is updated every day.
⚓️ The channel currently has tens of thousands of files in the form of instructions, drawings, videos, software and literature.
⚙️ Here you can find instructions for both modern and obsolete equipment that is still found on ships.
🤩 The channel also posts video instructions for ship systems and equipment.
✅ In a separate closed channel chat, you have the opportunity to search for the necessary information, the admins always try to find the necessary manual for you.
🆓 The closed chat is available for free, apply 👉 LINK 🔗 📱
➡️ Content on the channel is not publicly available and cannot be distributed. This is done so that any information can be posted, as well as so that the project can exist for a long time and without problems.
☝️ Access to the channel is symbolically paid. The channel has online and offline backups that need to be constantly updated and kept up to date.
⭐️ Access to the channel is paid monthly via the LINK 🔗 (you can unsubscribe or subscribe again at any time).
☝️ When your subscription to the main channel ends, you will still have access to the chat, but the files from the main channel will no longer be available until you pay for the monthly subscription.
#closedchannel #instructions #drawings #manuals #paidsubscription #uniquecontent #ETOmanuals #ETO #MEM #MarineEngineeringManuals #EngineeringManuals | 1 029 |
| 9 | Sin texto... | 1 119 |
| 10 | Sin texto... | 1 031 |
| 11 |  Articles about Automatic Voltage Regulator:
1. Automatic Voltage Regulators. What is a generator AVR or Automatic Voltage Regulator?
2. Automatic Voltage Regulator and Parallel Operation of generators. Voltage droop
3. Automatic Voltage Regulator. Real power, Reactive power, Apparent power. KW, KVAR, KVA
4. Function of Voltage Regulator and Parallel Generator Operation
5. The Current Transformer Unit - Parallel Switch. Paralleling Different Size Generators
6. Checking and Troubleshooting a Reactive Compensation Circuit for the AVR in an Isolated AC Bus
7. ACB Trouble. The generator does not connect to the main busbars. Troubleshooting
#alternators #automaticvoltageregulator #AVR #brushlessalternators #generator #generators #powerfactor #regulators #thyristor #voltage #voltagecontrol #voltageregulator | 988 |
| 12 |  Turning natural gas (#NG) into liquefied natural gas (LNG) is essentially a massive purification and refrigeration process. The goal is to shrink the #gas so it can be shipped across oceans without pipelines.
By cooling natural gas to -162°C (-260°F), it turns into a liquid and shrinks to 1/600th of its original volume.
This transformation happens at an industrial facility called a liquefaction plant (or an LNG "train"). The process is strict, because if the gas isn't completely pure before it hits the deep freeze, the entire facility will freeze shut.
The #Liquefaction Process
Pre-Treatment (Acid Gas Removal)
*Step 1*
Raw natural gas directly from the ground contains carbon dioxide (CO_2) and hydrogen sulfide (H_2S). These are stripped away using a solvent (typically an amine solution). This is critical because CO_2 freezes into solid dry ice at -78.5°C, which would clog the pipes later.
Dehydration (Water Removal)
*Step 2*
The gas passes through dehydration columns filled with molecular sieves (desiccants) to absorb every trace of water vapor. Just like CO_2, any remaining water would turn to ice and shatter the high-speed machinery.
Heavy Hydrocarbon & Mercury Removal
*Step 3*
Activated carbon #filters absorb mercury, which is highly toxic and can corrode aluminum heat exchangers. The gas is then slightly chilled to separate "heavy" hydrocarbons like butane and propane, leaving nearly pure methane (CH_4).**The Big Chill (Liquefaction)**
*Step 4*
The pure methane enters the main cryogenic heat exchanger. Using giant refrigeration loops (often utilizing mixed refrigerants like nitrogen, ethane, and propane), heat is extracted from the gas until it plummets to -162°C. At this point, it condenses into a clear, colorless, non-toxic liquid.**Storage and #Shipping**
*Step 5*
The LNG is pumped into massive, heavily insulated storage tanks at atmospheric pressure. From there, it is loaded onto specialized double-hulled LNG tankers—essentially giant floating thermoses—to be shipped across the globe.
The Thermos Principle:
LNG #tankers and storage tanks do not have active refrigeration units to keep the gas liquid during transit. Instead, they rely on extreme insulation. A tiny fraction of the liquid naturally warms up and evaporates—this is called "boil-off gas"—and it is typically captured and used to power the ship's engines.
When the ship reaches its destination, the process is reversed at a regasification terminal, where the #LNG is carefully warmed up, turned back into a gas, and fed into local pipeline networks. | 1 015 |
| 13 | https://t.me/marine_troubleshooting | 779 |
| 14 |  A contactor is an electrically controlled switch used to turn a power circuit ON or OFF. It’s commonly used in #motors, #lighting systems, #HVAC, and industrial machines.
How a contactor works (simple explanation)
A #contactor has two main parts:
Coil (#electromagnet)
Contacts (switching parts)
Working principle step-by-step:
1. No power to coil (OFF state)
The contacts remain open (NO – Normally Open).
No current flows to the load (like a motor or light).
2. Power applied to coil
When voltage is supplied to the coil, it creates a magnetic field.
This magnetic field pulls a movable part called the armature.
3. Contacts close (ON state)
The armature movement closes the contacts.
Now current flows through the circuit to the load.
The device (motor, lamp, etc.) turns ON.
4. Power removed from coil
The magnetic field disappears.
A spring pushes the armature back.
Contacts open again → device turns OFF.
Simple idea:
Small control power (coil) → controls large power #circuit (contacts)
Example:
You press a start button → coil energizes → contact closes → motor runs
You press stop button → coil de-energizes → contact opens → motor stops
Key points:
- Used for high power switching
- Provides safe control using low voltage
- Can be controlled manually or automatically (#PLC, #timers, #sensors) | 817 |
| 15 |  I wonder how many ants it takes to short-circuit? 🤔
#ants #shortcircuit | 1 007 |
| 16 |  Reading milli amps with Process Clamp meter Fluke 772
#Fluke #ProcessClampMeter #ClampMeter | 962 |
| 17 |  LNG carriers are specialized ships designed to transport liquefied natural gas (LNG) at extremely low temperatures across oceans safely and efficiently. Here’s a clear step-by-step explanation.
1) What LNG actually is
Natural gas is mostly #methane. To ship it economically, it’s cooled to about −162 °C, turning it into a liquid.
Why liquefy it?
Gas shrinks about 600 times in volume
Makes long-distance transport possible by sea instead of pipelines
This process happens at export terminals before loading onto the ship.
2) Cargo tanks — the heart of the ship
LNG carriers look different from normal #tankers because they carry cryogenic tanks instead of oil tanks.
There are two main tank designs:
Moss type (spherical tanks)
Developed by Moss Maritime
- Big aluminum spheres sticking above deck
- Very strong and simple
- Easy to inspect
- Slightly less cargo capacity
Membrane type (prismatic tanks)
Developed by Gaztransport & Technigaz (#GTT)
- Tanks are integrated into the hull
- Thin stainless or Invar membrane supported by insulation
- More cargo capacity
- Most modern LNG carriers use this design
Inside the tanks:
Double insulation layers
Special materials that tolerate cryogenic temperatures
Secondary barrier in case of leakage
3) Boil-off gas — LNG constantly evaporates
Even with insulation, some LNG warms up and turns back into #gas. This is called boil-off gas (#BOG).
Instead of wasting it, ships use it as fuel.
Historically:
Steam turbines burned the gas directly
Modern LNG carriers use:
- Dual-fuel diesel engines (#DFDE)
- ME-GI / X-DF slow-speed engines
- Re-liquefaction plants (on some ships)
Typical boil-off rate: 0.1–0.15% per day
This means the cargo partially powers the ship itself.
4) How loading works
At the export terminal:
- Ship cools cargo tanks gradually (cool-down)
- LNG is pumped via insulated loading arms
- Vapor return line sends gas back to shore to avoid pressure rise
- Tanks are filled while pressure and temperature are monitored
Loading a large LNG carrier (~170,000 m³) takes 12–18 hours.
5) Voyage and cargo management
During the voyage the crew must constantly control:
- Tank pressure
- Temperature
- Boil-off gas production
- Sloshing inside tanks
Key systems onboard:
- Cargo control room
- High-capacity compressors
- Gas combustion unit (#GCU) for emergency gas burning
- Emergency shutdown (#ESD) systems
Safety is extremely strict because LNG is flammable (but not explosive unless mixed with air).
6) Discharging LNG
At the import terminal:
- Ship connects unloading arms
- Cargo pumps push LNG ashore
- Shore terminal warms LNG back into gas (regasification)
- Gas enters national pipeline network
Unloading takes about 10–12 hours.
7) Why LNG carriers are among the safest ships
#LNGshipping has one of the best safety records in maritime history.
#Safety features include:
- Double hull
- Double containment tanks
- Gas detection everywhere
- Emergency shutdown systems
- Separation of cargo and accommodation areas
No major LNG #tanker cargo tank failure has occurred in commercial service.
8) Typical size of LNG carriers
Common sizes:
- 125,000 m³ – older ships
- 170,000 m³ – standard modern LNG carrier
- 210–266,000 m³ – Q-Flex & Q-Max mega carriers
Largest LNG carriers were built for Qatar’s #LNG export projects.
An #LNGcarrier is basically:
- A floating thermos flask
- That burns part of its cargo as #fuel
- And delivers super-cold liquid gas across oceans safely | 1 231 |
| 18 |  ETO Salary in 2026: What Has Changed Compared to 2025
In 2025, ETO was already a well-paid position. In 2026, it has become a high-demand, high-value engineering career with significant earning potential.
✅ Article ➡️ https://www.eto-engineer.com/2026/04/eto-salary-in-2026-what-has-changed.html
#automation #BulkCarriers #Container #cruiseships #ElectroTechnicalOfficer #electroengineer #ETO #Fleet #IT #LNG #LPG #Officer #Offshore #Salaries #seafarer #SETO #ship #vessels #windenergy | 1 151 |
| 19 | China launches fully electric intelligent container ship with reduced crew
#China has officially put into service the world’s largest fully electric intelligent container ship, marking a major milestone in the decarbonization of coastal shipping.
The #vessel has begun regular operations between the Ningbo‑Zhoushan Port and the city of Jiaxing, supporting short-sea container transport powered entirely by batteries.
A new step toward zero-emission #shipping
The #ship is designed to operate without traditional fossil fuels, relying on large swappable battery modules and high-voltage shore charging. With a capacity of about 740 TEU and a service speed of around 11.5 knots, the vessel demonstrates how #electrification can work on fixed coastal routes.
According to reports from TrasportoEuropa and The Week, the ship is equipped with advanced smart-#navigation technology, including real-time environmental monitoring, route optimization, collision-avoidance systems, and remote-operation capability.
Smaller crew, higher automation
Because the ship has no conventional main engine or fuel systems, automation plays a central role in operations. Industry experts estimate the crew size to be significantly reduced compared with traditional feeder container ships, likely around 6–9 personnel.
The vessel’s fully electric propulsion and high-voltage onboard power systems also highlight the growing importance of electro-technical officers (#ETO) in modern shipping.
Strategic importance for China
The project forms part of China’s broader push to cut emissions in maritime transport and modernize port logistics. The Ningbo-Zhoushan hub, already the world’s busiest port by cargo throughput, is expected to serve as a testing ground for future electric and autonomous #shipping technologies.
Industry analysts view the launch as a pilot project that could accelerate the global transition toward green coastal shipping.
Electric smart container ship sets sail in China
#news | 0 |
| 20 |  World power sockets
#socket #sockets | 0 |
