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  • Marine Plants
  • Marine Plants

Marine Plants

Related Accreditation
Related AccreditationCommon Equipments being used
  • Motor Fine Analyzer
  • Ultraviolet Corona Detection Camera
  • Primary Current Injection Test System
  • Winding Resistance Tester

LNG Carriers

Built cryogenic sea vessels (LNG Carriers) or cryogenic road tankers are used for its transport. Liquefied natural gas takes up about 1/600th the volume of natural gas in the gaseous state. It is odorless, non-toxic and non-corrosive. Hazards include flammability. LNG in its liquid form cannot ignite. However, if released into the air or water, it warms rapidly, then vaporizes and turns into a gaseous vapor cloud that can be flammable.

This vapor cloud is lighter than air, so it rises and can t ravel downwind.

It will dissipate unless it encounters an ignition source when the vapor cloud is between approximately 5 to 15 percents of the surrounding air. Because of the possibility of flammable vapor clouds, there are safety concerns associated with LNG liquefaction, transport, and regasification processes.

Accidental releases of LNG can have disastrous consequences. Electrical safety checks is vital not only its propulsion system. The KESA’s ensuring the safety satisfies clients.

Drill Ship

Marine Plants

Electric power generation & distribution package, power management system, integrated process automation system, thruster & drilling motor and drive panels provides customer with the maximum benefit by reducing operation cost and system failure time for semi-submersible drilling rig, drillship and FPSO.

Complete electrical systems for the drill ships, used for oil and gas exploration drilling. The delivery for each rig includes power generation and the high and low voltage distribution systems, the drilling drive systems, the propulsion drive systems, as well as related engineering services. This comprehensive solution will reportedly help the rigs operate more safely as well as maximize onboard equipment reliability, efficiency and availability, while securing a stable supply of power throughout all rig systems.

Examinations of high voltage cables, stator, rotor and excitation unit, cleaning of all major sub-assemblies

Marine Plants

FPSO

Marine Plants

A properly selected electrical protection scheme is therefore required to detect and initiate automatic disconnection of abnormal faults on a power network so as to limit damage to faulted electrical equipment; maintain system stability; minimize service disruptions and to protect human life.

Power system Faults or abnormal conditions

Can be simply categorized as follows:

  • System or equipment overloads
  • Short circuit conditions
  • Ground faults
  • Over or under voltage situations
  • Equipment failures

ANALYSIS

  • Load flow analysis
  • Motor starting study
  • Short circuit study
  • Transient stability study
  • Electrical protective device co-ordination study (Carried out through the use of computer programs)
more

DIAGNOSIS

Circuit protective interruptive devices like circuit breakers or fuses, protection relays and current and voltage measuring devices which together form a protection scheme used to isolate faulted zones

Typical relay protection functions required for machines

  • Over current
  • Differential current
  • Field failure
  • Stator ground fault
  • Over/under voltage
  • Over/under frequency
  • Reverse power (prime mover failure)
  • Loss of synchronism

PROTECTION RELAY

  • Generator protection
  • Transformer protection - Over current
  • Instantaneous over current
  • Differential current
  • Primary and secondary winding ground fault
  • High winding temperature/high coolant temperature
  • High gas pressure
  • Switchgear protection - Busbar over current
  • Busbar Differential current
  • Ground fault protection
  • Ground fault monitoring
  • Under/over voltage
  • Bus transfer / Automatic transfer schemes
  • Feeder protection - Over current protection
  • Short circuit protection
  • Ground fault protection and/or monitoring
  • Motor protection
  • Load loss
  • Differential current
  • Stator ground fault
  • Single phasing
  • Excessive vibration
  • Mechanical jam
  • Abnormal Operating Conditions
  • Voltage
  • Frequency
  • Voltage and current imbalance
  • Load loss
  • Jamming
  • Jogging