MTU ONSITE ENERGY PERFORMANCE …

1 MTU ONSITE ENERGYPERFORMANCE ASSURANCECERTIFICATIONA Tognum Group CompanyMTU ONSITE ENERGY / 100 Power Drive / Mankato / Minnesota 56001 Phone 507 625 7973 / Fax 507 625 2968 / Toll Free 800 325 5450 ONSITE ENERGY has been producing superior engine JHQHUDWRU VHWV IRU RYHU YH GHFDGHV :H XQGHUVWDQG WKH importance of reliable cost-effective products, and have developed industry-leading test procedures to ensure we H[FHHG WKLV FULWHULD 2XU WHVWLQJ SURJUDP FRQ UPV WKDW RXU customers will receive products of the highest quality. The3 HUIRUPDQFH $VVXUDQFH &HUWL FDWLRQ SURYLGHG E\ 078 2 QVLWH (QHUJ\ FHUWL HV WKDW HYHU\ HQJLQH JHQHUDWRU VHW XQGHUJRHV rigorous prototype testing including the following:PROTOTYPE TEST PROCEDURESR ated Load (NFPA 110) 078 2 QVLWH (QHUJ\ FHUWL HV WKDW DOO HQJLQH JHQHUDWRU VHW models will produce the name-plated load in all conditions within the design tolerance of the gen Run Testing078 2 QVLWH (QHUJ\ FHUWL HV WKDW DOO HQJLQH JHQHUDWRU VHW prototypes have been subjected to major run time Response Analysis (ISO 8528-5)078 2 QVLWH (QHUJ\ FHUWL HV WKDW DOO QHZ JHQ VHW PRGHOV KDYH undergone transient response analysis per ISO Analysis078 2 QVLWH (QHUJ\ FHUWL HV WKDW DOO HQJLQH JHQHUDWRU VHW models have undergone torsional stress Cooling System078 2 QVLWH (QHUJ\ FHUWL HV WKDW DOO JHQ VHW PRGHOV ZLOO FRRO VXI FLHQWO\ ZLWKLQ WKH DPELHQW GHVLJQ FRQGLWLRQV SHU HDFK Alarms & Shutdowns078 2 QVLWH (QHUJ\ FHUWL HV WKDW WKH SUH DODUPV DQG DODUPV function appropriately to protect the engine generator set from any foreseen unnecessary Analysis (ISO 8528-9))))))))]

2 078 2 QVLWH (QHUJ\ FHUWL HV WKDW DOO QHZ HQJLQH JHQ VHW models have undergone vibration analysis to ensure that each engine generator coupling is balanced and that there is no destructive resonant vibration. PROTOTYPE TEST METHODSMTU ONSITE ENERGY performs prototype testing by following the methods and guidelines established by ONSITE ENERGY is proud to perform these stringent procedures because they showcase engine generator set superiority in providing precise power for all types of critical applications including hospitals, data centers, UPS systems and government and military STANDARDSMTU ONSITE ENERGY engine generator sets are compliant with many different codes and standards. MTU ONSITE ENERGY s philosophy and PERFORMANCE are regularly reviewed to ensure continuity with these codes and standards: UL2200, CSA, EPA, NFPA 99 Health Care Facilities, NFPA 70 National Electrical Code, NFPA 110 Standard for Emergency and Standby Power Systems, Department of Labor and Industry, ISO 8528-5 Generating Sets, and ISO 8528-9 Measurement and Evaluation of Mechanical Vibrations.)

3 In addition: ISO 8528-10--Measurement of airborne noise by the enveloping surface method, IEEE 115--Test Procedures for Synchronous Machines, NEMA MG 1--Motors and Generators, MIL-STD-705-cPROTOTYPE TEST PROCEDURES & METHODSMIL-STD-705C Insulation Resistance Test* High Potential Test* E :LQGLQJ 5 HVLVWDQFH Start and Stop Over Speed Protective Device Phase Sequence Test (Rotation) Phase Balance Test (Voltage) Rheostat Range Test (as applicable) Regulator Range Frequency Adjustment Range Test (as applicable) Indicating Instrument Test (Electrical) Low Oil Pressure Protective Device Over Temperature Protective Device Controls, Direction of Power TestMTU ONSITE ENERGY / 100 Power Drive / Mankato / Minnesota 56001 Phone 507 625 7973 / Fax 507 625 2968 / Toll Free 800 325 5450 A Tognum Group * Performed by Alternator OEMFACTORY ACCEPTANCE TESTINGMTU ONSITE ENERGY s factory testing is performed with the same extreme diligence and attention to detail that is given to the prototype testing process.

4 Every engine generator set UHFHLYHV D FRPSOHWH IDFWRU\ DFFHSWDQFH WHVW WKDW FHUWL HV and ensures that the set will function in accordance to every VSHFL F DSSOLFDWLRQ 7 HVW PHWHULQJ ZLOO KDYH DQ DFFXUDF\ RI or better. This metering is calibrated a minimum of once per year, and is directly traceable to the Bureau of Acceptance Testing Procedures://Insulation Resistance Inspection ( )*//High Potential Test ( )*//Alternator Over Speed (1 min.)*//Engine Inspection//Generator Inspection//Resistances Inspection ( ) Exciter Field Stator Alternator Armatures//Mounting & Coupling Inspection//Engine Fuel Oil System Inspection//Engine Lube Oil System Inspection//Engine Cooling System Inspection//DC Charging System Inspection//Circuit Breaker Inspection//Anticipatory Alarms and Shutdowns Inspection ( , , )//Optional Equipment Inspection ( )//Load Test Inspection Regulator Range Test ( ) No Load Inspection MAX Load @ ( ) MAX Load @ Block Loads @ 0-25%, 0-50%, 0-75%, 0-100%//Phase Balance and Sequence Inspection ( , , )*Performed by Alternator OEME xtended Run Factory Acceptance Testing:In some cases, extended run testing may be requested.

5 8 QOHVV VSHFL HG RWKHUZLVH H[WHQGHG UXQ WHVWLQJ ZLOO EH performed in the following Power Factor //Full name plate rated readings taken every 15 minutes.:,71(66(' )$&725< ACCEPTANCE TESTINGS tandard witnessed factory tests must be scheduled and approved at least four weeks prior to the engine generator set s scheduled shipping date. Any requests for witnessed factory testing after this four week period must be approved by the Regional Sales Manager and are subject to additional fees.:,71(66(' (;7(1'(' 581 FACTORY ACCEPTANCE TESTING:LWQHVVHG H[WHQGHG UXQ WHVWV PXVW EH VFKHGXOHG DQG approved at least six weeks prior to the engine generator set s scheduled ship date. Any requests for witnessed extended run testing after this six week period must be approved by the Regional Sales Manager and are subject to additional READINGS RECORDEDDURING LOAD TEST INSPECTIONRun TimeFrequencyAC Voltage Exciter Field VoltageAC Amperage Exciter Field CurrentkVA Lube Oil PressureN:H (QJLQH &RRODQW 7 HPS Power Factor Ambient ONSITE ENERGY / 100 Power Drive / Mankato / Minnesota 56001 Phone 507 625 7973 / Fax 507 625 2968 / Toll Free 800 325 5450 A Tognum Group FACTORY ACCEPTANCE TESTINGA dditional testing is available upon request.)))))))]]

6 Thefollowing is a list of supplementary tests which can be performed on MTU ONSITE ENERGY engine generator sets. Non-standard testing is subject to additional Start and Stop Test (remote control) Over Speed Protective Device and Voltage Regulation, Stability and Transient Response and Frequency and Frequency Regulation Dip and Rise For Rated Load Consumption Test (consult engineering)A Tognum Group CompanyMTU ONSITE ENERGY / 100 Power Drive / Mankato / Minnesota 56001 Phone 507 625 7973 / Fax 507 625 2968 / Toll Free 800 325 5450