Dimaano - Generator Instrumentation & Control - East Grace Park, Caloocan City, Philippines

Mariolito Dimaano

East Grace Park, Caloocan City, Philippines


Generator Instrumentation & Control


Performed and supervised installation, maintenance, troubleshooting and repair related eletro-mechanical works for Cummins, Perkins, Caterpillar and Mitsubishi generators.

Work History


CETPower Project

June 2009 - April 2013

CET - Consolidated Energy Trading
No.8, Ogmobosho St. Area8, Garki, Abuja, Nigeria

An IPP (Independent Power Producer) and involving in rental of both diesel and gas Cummins generator projects. Installation and maintenance of multiple KTA50 & GQSK60 generator.
_Installed, maintained, repaired and tested equipment for the generation and utilization of electric energy for diverse-industry.
_Performed general electromechanical repairs on client systems and equipment, ensuring to code requirements.
_Developed expertise in Cummins gas generator systems through various projects for public and private companies.
_Earn reputation for expertise in complex troubleshooting and problem solution.
_Gained extensive experience in analyzing and following manuals, schematic diagrams, blueprints and other specifications.
_Mastered the use of measuring instrument for diagnostic maintenance, troubleshooting and repair.
_Consistently commended for team-player mind set, "doing it right the first time" and working with minimal supervision under tight deadlines.
_Cultivate excellent relationships with clients, resulting in a strong base referral business.

Commissioning Technician


March 2007 - May 2009

Commissioning Technician,
Power Gas Energy Resources Limited,
Plot 3, Block D, Amuwo- Odofin Apapa Oshodi Expressway, Lagos Nigeria
www.powergas-nigeria.com , www.dgset.com

Supervised project installation, Doing testing & Commissioning, troubleshooting and repair of Cummins and Perkins gas generators. Mostly installed Cummins gas generators are GQSK60 and GQSV91. Perkins Model are 4016TESI, 40012TESI, 4008-30TRS2 and 4008TESI-200LC. Most of them are synchronized and parallel gas generators.

Supervision during offloading to the site, installation of Flat bed or Vertical Radiator, Laying and termination of Power and Control cables, installation of Gas Train piping, installation of Ventilation fans, installation of Exhaust muffler & cladding and other associated accessories. To secure the quality of each and every materials and workmanship meet the required standard.

Testing and Commissioning;
Perkins Gas Generators: Testing and calibration of gas train. ( Shut-off Valve, Gas Regulator, pressure relief valve, double solenoid valve and zero pressure regulator..) Check and testing of gas leak piping. Testing and calibration of synchronizing control panel, metering, transducers and safety shutdown sensors. Adjustment of gas mixture, by measuring the smoke emission using gas analyzer. Adjustment of Voltage Regulator and Speed Governor (Single or Parallel operation ). Load testin

Assistant Application Engineer


October 2003 - September 2006

October 28, 2003 to September 2006,
Assistant Application Eng’r,
Abunnayan Trading Corporation,
P.O. Box 321 Riyadh 11411 Kingdom of Saudi Arabia
Preparing product brochures and technical data specification for quotation offer for our unit sales engineers.
Attending project site evaluation for the installation requirement and data load analysis requirement for the required size of generators.
After-sales and service support doing testing, commissioning, troubleshooting and repair for the warranty generators..
Principal supplier of generator, GENTEC ENERGY LTD ( The Nova Building Herschel Street Slough, Berkshire SL1 1XS United Kingdom) using Perkins, Cummins Engine..
Project Accomplishment:
 Commissioned a Built, Operate and Transfer for Ministry of Interior ( Border Guard ) 3unit on each site of Continuous duty P400P1 Perkins2306C-E14TAG3 synchronize & parallel generators using 6200 series control. Total of 4 site at Sharora, Matif, Magaref, Umalmalha & Karkir, Saudi Arabia- Yemen Border. Five unit of P688 Perkins 2806C-E16TAG2 parallel generator at Shouba, Saudi Arabia, Iraq Border.
 GRAIN SILOS at Khamis Musayat, Abha,K.S.A. Rehabilitation of power house, generators controls, synchronizing switchgear and ATS. Supplied additional of Two unit of KTA38G4 diesel engine generators. In total of Six unit in parallel using a DEEPSEA 5510 V.5.0 supplied by BLACKBOX_lebanon.
 QATAR ALPHA BETON, State of Qatar. Commissioned a ready mix cement plant, two unit of continuous duty KTA50-G4, 415V,50Hz using DEEPSEA model 5510 V5.0 synchronized and parallel using LEROY_SOMER Alternator and R449 AVR.
 NATIONAL WATER, Bridgeman Jeddah K.S.A.. Waste water treatment plan. Commissioned two unit of continuous duty P688Perkins using 6200 Series Control Panel using LEROY_SOMER Alternator and R448 AVR..
 IBRAHEM _SHAKER ( LG Warehouse) Al kharj,2nd Industrial City K.S.A.. Commissioned two unit of continuous duty P250HE generator par

Power Generation Technical Support


June 2001 - January 2003

June 2001- January 2003,
Power Generation Technical Support,
. www.rezpro.com
P.O. Box 5687 Sharjah U.A.E
Ref: Mr. Neil Helliwel / Director Manager

Technical Support for maintaining a Diesel Engine Power Plant at U.S. Army KFOR Base. Rendering a Maintenance, troubleshooting and repair subcontracted to BROWN & ROOT.
 U.S. Army Base ( CAMP BONDSTEEL ) Ferizaj Kosovo a total of 20MW Diesel Engine Generators, 18 unit of weatherproof and silent proof 40ft container. Engine Model KTA-50G8, 1124KW,380vac,3Phase,50hz a PCCP Cummins Onan & 5 units of MC150-4 paralleling control.
 U.S. Army Base ( CAMP MONTEITH), Gilan Kosovo, Technical Support for maintaining 6.7MW, Six (6) Units of KTA50-G8, 1124KW & 2 units of MC150-4 paralleling panel in a weatherproof and attenuated 40ft container.
 U.S. Army Base ( CAMP MAGRATH ),Vitina Kosovo, Technical Support for maintaining 3.4MW, Three (3)Units of KTA50-G8 & MC150-4 sync panel in a weather proof and attenuated enclosure unit..
 Irish Camp Base, On-call service for 3 X 250KW, LTA-10 & MC150-4 paralleling panel. In a silent proof and attenuated enclosure unit..

Technical Support Engineer


July 1999 - May 2001

May 25, 2001 – July 27, 1999,
Technical Support Engineer,
9th Floor, The World Centre, 330 Sen Gil J. Puyat Ave. Makati City
Technical Support Group ( MHI Philippines )for Generators and Paralleling switchgear of MITSUBISHI Brand. High speed MGS series (1800 RPM) and Base Load Generator a Low speed SU and KU series ( 900 RPM, ). Troubleshooting, Repair and Yearly Preventive Maintenance Contract Service for the entire generator supplied by Mitsubishi Heavy Industry Japan.
Camellry Industrial Park, Canlubang Laguna. Total of 19.5Mega Watts, 4.1KVAC, 3Ǿ, 900RPM
of Nine (9) unit S6U2-PTA, Five ( 5) Unit of S12U-PTK, 6 unit S6U2-PTA.
First Philippine Industrial Park Tanauan, Batangas, Total of Six(6) Mega Watts of Four (4) unit S12U, , 4.1KVAC, 3Ǿ, 900RPM
Luzon Economic Zone Mariveles, Bataan Philippines, 4 unit of S12U, 6MW, 4.1Kvac.
 NEC-COP ( NEC-Computer Products ),
Science Industrial Park, Calamba Laguna, Four (4) of unit S16U-PTK, 7.2MW, 6.6KVAC,3Ǿ, 900RPM..
Techno Park, Sta. Rosa Laguna, Total of Six (6) Mega Watts of 4 units S12U, 6MW, 4.1KVAC.
Camelray Industrial Park, Canlubang Laguna. Total of 1.6 Mega Watts of Two (2) units, S6U2-PTK, 1.6MW, 4.1KVAC. , 3Ǿ, 90

Generator Technician


1996 - 1998
( Cummins Philippines Distributor),
Edsa Mandaluyong City,
Power Generation Technician.
Attending Commissioning, Troubleshooting and repair of Cummins Onan Product, Generators, Paralleling Switchgears ( OSPS and ISPS ), Automatic Transfer Switchgears (OT-III). Doing Field Service work most of the time.



February 1993 - March 1995

Feb. 12 1993 – March 17, 1995
Riyadh K.S.A. Power Generation Division.
(P.O. Box 967 Riyadh 11421 K.S.A. )

Attending commissioning, troubleshooting and repair of Cummins Generator, Paralleling Switchgears ( Local fabricated, ISPS-International Syncronizing and Paralleling Switchgears, OSPS-Onan Synchronizing Paralleling Switchgears and Automatic Transfer Switchgears ( OT-III ).

AL YAMAMA BRICKS FACTORY., Eight (8) units of 1500KW, 1500RPM w/ OSPS Paralleling Switchgears.
KING FAISAL MATERNITY HOSPITAL RIYADH, Supplied, Install and Commission, 8 units of 800KW, 1800RPM, Remote mounted Radiators, Local Fabricated Paralleling Panel
MILITARY HOSPITAL NAJARAN, 3 Unit of 800KW, 1800RPM w/ Onan Paralleling Generators,
PRINCE THALAL SPORTS COMPLEX Riyadh, Two (2) Units VTA-28, w/ ISPS paralleling switchgears.


Generator & Control Instrumentation services

Free lance technical servicing in power generation, troubleshooting, repair, test and commissioning of diesel and gas generator, synchronising and paralleling switchgear, automatic transfer switch etch. With my more than 10 years of experience earned a reputation for expertise in complex troubleshooting and problem solution. Gained extensive in analyzing and following manuals, schematic diagrams and other specifications. Mastered the use of measuring and testing instruments.

Wind Turbine (Small scale )

We build a small scale wind turbine as our experiment using a Neodonium magnet rotor. Presently we already produce an axial vertical wind mill that can produce from 12 to 24Vdc, 1 to 2Amps DC capacity at 330RPM. It is required that the wind velocity should be sufficient wind velocity @ 330 rpm. Testing and modification of the unit is on going. Mechanical, electrical and blade build or structure is strong enough to handle strong wind like typhoon scenario as tested.

Generator Instrumentation and controlM services

Perform Predictive Maintenance, troubleshooting or repair for power diesel and gas engine generator generation.<br /><br />CIRCUTOR PORTABLE POWER ANALYZER, <br />MODEL: AR5L data logger <br /> C-FLEX 200-2000-20000, CP-5 (25mA-5A) <br /> -Measuring HARMONICS-Analysis of all electrical parameters; voltage, current, power and energy. DISTURBANCES, POWER SUPPLY QUALITY-Detection of interruptions, gaps, over-voltage or any alteration in the wave shape. FAST CHECKS- Motor Start-up. Single or 3phase studies can be performed to capture the voltages, current, power and power factor during cycle periods. FLICKER-in the installation can be studied. LEAK METER-detection and analysis of leakages (earth leakages).-Capable to measure low and medium. -20kA flex C.T. and 25mA-5A Clamp C.T. for medium voltage application <br /><a class="wrappable" rel="nofollow" href="http://www.circutor.com" style="" target="_blank">www.circutor.com</a> <br />FLUKE INSTALLATION METER data <br />_Insulation resistance test., _Loop test (Z1) impedance, _loop line resistance test, _Prospective earth fault current, PEFC /Ik, _Prospective short-circuit current, PSC / Ik, _Low Resistance test (RLo) 0.16 to 2K. , _RCD switching time, switching tripping level, variable current. _Earth test (RE) ="<a class="wrappable" rel="nofollow" href="http://www.fluke.com"" style="" target="_blank">www.fluke.com&quot;</a> style. <br />FLUKE IR VISUAL METER VTO2. data logger. -Temperature test with visual log.

Qualifications & Certifications

Bachelor of Science in Electronics and Communication Engineering


Philippine Cultural High School (Annex)

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