ÇAĞRILI KONUŞMALAR / KEYNOTES Invited Speeches ... - TPJD

Electrical & Control Systems of an Unmanned Platform: Akçakoca
Savaş Saydere
Turkish Petroleum Corporation, Department of Production, Ankara
At this presentation we will introduce basis of electrical power, safety, control, telecommunication
and instrumentation systems of an unmanned gas platform. The electrical and control systems
are designed according to redundancy, fail safe philosophy and as simple as possible. Except
equipments in the control room, all the electrical or electronic equipments are ex-proof or in the
ex-proof Junction boxes. The main systems are as follows: Generators: Gas Turbine and Diesel
generators, which both of them are exproof. The main advantages are low maintenance, working
between %0-100 loads, no problem at following transient currents, etc. Diesel Generator is the
redundant one. MCC:) With two ATS, Motor Control Center (MCC) can make selections of the
power supplies and all the main power is observed with a power analyzer. MCC is withdrawer
type. DC UPS: It is designed for 50 amp nominal. Whenever there is a blackout, it has 3 days
DC backup at worst case. It has 12x80 amp charger for fast charging. Control Room is a positive
pressured room that is taking it air from unclassified are. It has fully redundant heating, airconditioning
and ventilation system. It has special extinguishing, air flow, gas and smoke
detections. Nav-Aids is a system to warn with voice and lights surrounding area of the platform
according to Solas (Safety of Life at Sea). It consist of 4 lanterns, 1 horn, control systems, batteries,
chargers, etc. If there is a blackout, it uses 2 solar rays of panels for supply and charging Auxiliary
Equipments: Lighting is consisting of 5 power lines, which consist of both emergency and normal
lightning. False loads are for the diesel generator for low power consumption. Heaters are for
helping protection from freezing of some equipments and piping. Also, there are various kinds of
equipments like intrusion detector, vibration detector, receptacles, etc. Fire detection systems:
Fusible pug panel that has 28 fusible plugs around the platform with two lines. As an additive,
fire detectors, gas detectors, esd and fire stations, safety transmitters and switches, horns and
beacons, etc. Skid base instrumentation systems mainly consist of transmitters, switches, control
valves, etc. Wellhead control is with a dedicated wellhead control panel systems which is at side.
PLC, telecommunication, onshore control, IO connections. System is with hot redundant PLC, all
the Safety Integrity Systems are fail safe IOs.
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