Reporting to the chief engineer, the ETO or equivalent engineer is responsible for the day-to-day maintenance and operation of all electronic, audio-visual and communications equipment on board. For large ships, these systems are likely to be numerous and complex, including radio, radar, telephones, satellite communications including internet, other communications, navigation systems, personal computers, email servers, […] Read more
The induction motor has two main components, the stator and the rotor. The stator carries three separate insulated phase windings which are spaced 120 degree (electrical) apart and lying in slots cut into a laminated steel magnetic core. This type of stator winding is similar to the construction used for an a.c. generator. The ends […] Read more
Overheating problem on Ship Extremes of temperature will affect the performance and the effective life of any electrical apparatus. Devices which depend on electromagnetic operation by shunt coils will find that the resistance of the coil increases with temperature and so with less current, the field strength ‘H’ is reduced ( H=NI where N is […] Read more
Responsibilities of IT Tehnician on Cruise ship: Maintain inventory of all software and computer, printer, and network hardware with serial numbers and record of ownership Assist shoreside IT with application deployment, upgrades, and troubleshooting User assistance: Assist users when required in all computer based applications Instruct users in basic handling routines, such as login, logout, […] Read more
If a fault occurs on a generator stator or its associated cables, the tripping of the generator circuit breaker alone is not sufficient Although the m... Read more
The fuse is a piece of wire which can carry a stated current; if the current rises above this value it will melt. If the fuse melts (blows) then there... Read more
What does an electro technical officer do? An electro technical officer handles several responsibilities on vessel mainly related to electrical system... Read more
Avoid working “live” Electrical testing must often be performed on energized circuits and equipment. But the safest technique for doing tasks such as... Read more
2nd ETO on Cruise ship Attractive rotation & €46,220 Annual salary – I want to speak candi... Read more
If the generator load is suddenly increased in one step from P1 to P2, and the mechanical input from the prime mover is also changed fromP1 to P2 to match with the load, the generator power angle (rotor lead angle) will start changing from δ1 to δ2 under the accelerating power Pa = P2 – […] Read more
Short circuit calculations are done to ensure that fault current in short circuits does not exceed breaker’s and other equipment’s maximum ratings. Under short circuit, the mechanical stresses on bus-bars and cabling becomes much higher than under normal operation, and class rules and standards defines certain limits that the equipment shall be designed for.A typical […] Read more
Find and Correct the Cause of Trouble After any electrical failure on ship has been corrected by Electrotechnical Officer (ETO), be sure to locate and correct the cause so the same failure will not be repeated. Further investigation may reveal other faulty components. Also be aware that although troubleshooting charts and procedures greatly help in […] Read more
Being an ETO on a super yacht is one of the most exciting jobs in the world. Not only do we get to learn about cutting-edge audio visual, IT, electrical and bridge navigation systems – we get to install and support these state-of-the-art systems while traveling to far and exotic places around the world. But […] Read more
A material must contain charged particles to be able to conduct electric current. In solids, the current is carried by electrons. Copper, lead, aluminium, iron and carbon are some examples of solid conductors. In liquids and gases, the current is carried by the part of a molecule which has acquired an electric charge, called ions. […] Read more
For the measurement of temperatures, there are three basic types of electrical thermometers. 1. Resistance thermometers operate on the principle that the resistance of a metal varies in direct proportion to its temperature. They are normally used for temperatures up to approximately 1500°F. 2. Thermocouples operate on the principle that a difference in temperature in […] Read more
To successfully carry out the various test procedures suggested in this manual, certain test instruments are essential. The following lists detail the basic requirements in this respect. It should be noted that in addition to these instruments a comprehensive kit of tools is also essential. For fault finding purposes this need not include any specialised […] Read more
Power currents (a. c.) can be measured simply by means of a clamp meter which acts as a current transformer. The instrument tongs are clipped round a single insulated conductor – the circuit is not interrupted. The value of current is obtained from the magnetic flux strength around the conductor and is usually displayed on […] Read more
Most multimeters can only measure current up to 10 A maximum. The current measuring facility is intended only for small current components and, in particular, for electronic circuits. The instrument will almost certainly be damaged if it is used to measure the current to motors and other power circuits. The basic current range can be […] Read more
Ever since AC generation and distribution has been introduced on a large scale on ships around 1950, there has been debate about the type of distribution system. The main focus with the type of distribution system is the treatment of the systems neutral with respect to grounding. When selecting the grounding method on ship the […] Read more
Ship protection and monitoring relays ensure safety and a high level of ship electrical system availability by monitoring electrical power (voltage, current, and frequency).An important function of ship monitoring relays is early error detection. This makes it possible to respond to irregularities before it is necessary to switch off part or all of a ship’s […] Read more
