Transcript for:
An Overview of Aloko Mill Power Generation Company

[Music] Alco Mill power company sayag was established on 2001 and originally registered as a closed Omani joint stock company sayuk under the commercial company's law of Oman to build and operate a 369 megawatts power planted outcome Mill in the sharkia region of Oman the company was converted to a general joint stock company on September 22nd 2004. consequent to the listing the companies issued share Capital as own 65 by NG group and 35 by public investors the plant reached commercial operation in 2003 and since then supplied 280 megawatts electricity to Oman Power and Water procurement company under a 15-year power purchase agreement PPA this means gas turbine operating Under full load and capacity plant comprises of three General Electric frame 9 gas turbines model PG 9171e designed for operation in open cycle configuration and convertible to closed cycle configuration if needed together with related ancillary equipment required for a fully independent operation these turbines are also designed to run on both natural gas and light distillate fuel oil less than one percent sulfur gas is supplied to the site through a 12-inch pipeline branched from the 48-inch say raw pipeline to sewer LNG while a light distillate is transported by Road tankers to the site 3x123 megawatts GE frame 9 gas turbine single shaft gas turbine generators for power generation application at ISO condition the generator coupled with each GT is an Austin make air-cooled 121.25 MBA 15 000 volts 3000 revolutions per minute foreign [Applause] [Music] sets generator Step up Transformer electrically connected with each gas turbine generator Transformer or Hyundai make with a rated power of 120 MVA and rated voltage of 132 15 kV three sets of unit auxiliary Transformers stepping down from 15 kV to 6.6 KV with primary side connected to 15 kV isolated bus duct from generator to Sun the facility consists of two by one hundred percent capacity trains with change over logic natural gas received its side will be treated and conditioned to pressure levels as required by the gas turbines the facility consists of the following five subsystems Inlet ESD skid inlet filter separator skids A and B metering skid water bath heater skids A and B pressure reduction skid the plant light distillate fuel system consists of the following four subsystems diesel oil unloading pumps diesel oil storage tanks 2 by 6588 cubic meters diesel oil transfer pumps to GTS bsdg and fire pump oil forwarding pumps the plant includes raw water unloading and storage service and potable water system fire water system has the following equipments one now fire water storage tank of 848 cubic meters capacity two nodes of fire water pumps one AC motor driven and one DG driven 1-0 jockey pump fire pump controllers the compressed air system consists of one know each of instrument air and service air compressor trained together with membrane dryer and air receiver vessel the details of the system are summarized below make Atlas Copco type zd4528 oil-free Max working pressure 8.6 bar foreign the plant Black start diesel generator set is a 3200k reward seal a model 18 v200 engine pair with an AB 710 mr04 4-pole 6.6 KV generator the total running hours on this gen set is only 978.4 hours the electrical system consists of 6.6 KV switch gear 0.415 KV common MCC and three sets of 0.415 KV gtmcc one per GT 6.6 KV and 0.415 KV common mccr in the plant electrical building ups and DC system good or make UPS system of 60 KVA 230 vac system with a battery rack of 220 vac built with 178 cells of 555 on ecd batteries for five hours backup power plant was built with the most modern equipment and Machines of General Electric of America and the GTS has been operated and maintained to date in accordance with OEM recommendations all major outage has been performed by OEM GE under long-term service agreement ltsa since planned Cod till 2017. inspection done based on factored fire and starts ffs inspection done based on factored fired hours ffh C combustion inspection hgpi Hot Gas path inspection me major inspection all machines have undergone me around 2011 to 2012 period at 52 000 ffh under an ltsa and recommendation from OEM has been adhered to and followed the latest data as on 31st of December 2021 on GD units operation since last me and last inspection [Music]