Electrical, Electronic and control engineering at operational level
Electrical, Electronic and control engineering at operational level
Introduction:
In marine industry, the usage of electrical motors, generators, transformers etc., is extensive. The performance of the electrical devices can be set to operate in a predetermined manner using control equipment.
The modern marine machinery has many control systems, assisting in safety of machinery and personnel.
Sources of electrical power on ship includes main alternator, emergency batteries, emergency generator and shore power. Due to the increasing need of machinery and equipment to be installed in the ship, there arises a high demand for more electric power. This can be achieved by using high voltage systems onboard. These HV systems have to be safely maintained, operated and designed based on the marine mandatory rules and procedures. Electric propulsion is becoming popular nowadays.
On board the ships, there are many auxiliary machines, supporting the operation of the main machinery. In order to avoid break downs, accident and the stoppage of the ship, it is necessary to understand the routine works on the auxiliary machinery based on the main machinery function.
The usage of computers and computer networks in ships is extensive. IT systems used in the office and onboard ships are integrated to develop customized ship management systems. An Electronic Chart Display and Information System (ECDIS) is a computer based navigation information system that complies with the IMO regulations and can be used as an alternative to paper charts. The Automatic Identification System (AIS) is an automatic tracking system that shows surrounding ships on the screen for identifying and locating nearby vessels.
Shipboard communication is very important for the smooth functioning. Every seafarer must learn to communicate in various scenarios like handing over and taking over, explaining the possible failure and working together during emergency situation. It is essential to communicate to our colleagues in English to avoid any communication gap. Effective communication comes only by practice and make sure that you understand your colleagues and they understand you.
The communication process involves verbal and written modes of transmitting a message, an incident or a report covering an issue. The receiver must get the communication correctly and respond fittingly. There are also technical devices on board that need be correctly used to transmit information internally; e.g., from the ER to ship's cabin or vice-versa. Bridge to ER communication will have to be maintained at all costs and even under complete failure of power.
Learning objectives:
At the end of this unit, you will be able to
- Monitor the operation of electrical, electronic and control systems
- Monitor the operation of automatic control systems of propulsion and auxiliary machinery
- Operate generators and distribution systems
- Operate and maintain power systems in excess of 1,000 volts
- Operate computers and computer networks on ships
- Use English in written and oral form
- Use internal communication systems
