© 2018 JETIR June 2018, Volume 5, Issue 6 www.jetir.org (ISSN-2349-5162)
JETIRC006278 Journal of Emerging Technologies and Innovative Research (JETIR) www.jetir.org 1619
DEVELOPMENT, ASSEMBLY AND
PERFORMANCE TESTS OF 2250 KVA OPEN
DGSET
Nidhi Theresa Jeevan, Dr.Priam Pillai,
PCE, New Panvel
Abstract—In this paper we have designed the Base Frame for 2250 kVA DG Set using CAD Software Auto-CAD (2-D) and
PTC Creo Parametric 3.0(3-D) and the 3-D Model is further simulated in Creo Simulate 3.0 to analyze the rigidity. Hence
Structural analysis is performed using FEA(Finite Element Analysis) tools in Creo Simulate 3.0.To evaluate the natural
frequency of 2250 kVA DG set Base frame Modal Analysis is also performed . Base Frame is designed in such a way to
maintain and carry the weights of components of the entire DG Set and also to maintain its alignment and to withstand all the
dynamic loads which all DG set generates .Anti-Vibration Mounts are used for the 2250 kVA Diesel Generator Set to reduce the
structure borne noise and vibrations. The 2250 kVA DG Set was further physically tested and the Performance Test result was
found satisfactory. Vibration Testing was done using a vibration meter as per as ISO 8528 Part 9, vibration max limit less than
or equal to 320 microns. Thus have successfully developed a well optimized and stable open DG Set of 2250 kVA Rating by
reducing the thickness of the Base Frame Material(IS 2062) from 16 mm to 12 mmthick.
Index Terms—Base frame, Diesel Generator,Deflections,Anti- Vibration Mount, stiffness etc.
I. INTRODUCTION
DIESELGeneratorsisveryimportantforanydevelopedordevelopingnation,capacityofsupplyingunhinderedenergynotonlyensure
sasteadyindustrialgrowth,butalsogoesintoimprovethequalityoflifeinlongway.Themainsourceofthisenergyisobviouslyelectricityan
d thisiswhattheDieselGeneratorSetgenerate.TheDGSetisoneofthemostimportantandcomplicatedsystemindesign,manufacturing
and testing. The DieselGenerator assemblyanditsauxiliarieshaveahugeweightusuallyrangingfrom8000 kg to several tones[1].
Diesel Generatorsare widelyused in various industries like steel, sugar,cement,paper,textile,chemical,bio-
massbasedapplication.ThereareISOstandards for Diesel Generator manufacturersandprovidesguidelines for the maximum
allowabledeflection,stiffness,frequenciesandstresslevelsforvariouscomponents.However,forindustrialapplicationsISO8528isman
datory[2].MostoftheindustrialDieselGeneratoraremountedonbaseframes.WhichisrigidfabricatedstructureisgenerallymadeupofI
beams and standard plates, I beams are mainly
usedatmajorloadactinglocationswhereasplatesaremountedforsupportingthestructure.Steamturbinesaremountedonthebaseframetoc
arryitsweight, tomaintain its alignmentandtoassistincarryingthedynamicloadswhicheveryDGSets generates.Diesel Generator
base frame
needsaneffectivedesigntechnologytoensurethatthebaseframeasdesignedperformstherequiredfunctions,andmaintainsitsintegrity.T
hereisalsoaneedtomaximizethelifeoftheDieselGeneratorbaseframeundertheloadstowhichitisexposed.
II. THE SCOPE OF WORK:
Find out the structure deflection, stiffness,Calculation no of AVM(Anti-Vibration Mount)required for thebase
frame,vibration test according to ISO Standards, Performance Testisalsocheckedforthe2250kVADGSet.
Approach:
Modeling and assembly of base frame, which comprises I beams and plates is done using PTC Creo 3.0.and static analysis
is done by using Creo Simulate 3.0[6]. The vibration test at 8 different points of the 2250 kVA DG set are been noted down at
different loads using a vibration meter and the performance test of the whole DG Set is done and the readings are also
noteddown
Specifications:
The most important factor in selecting a generator set is of course its size and capacity. A careful study should be made to
determineexactlytowhatendusethegeneratorsetisbeingput to, and the total wattage[7].It is always advisable to consider in a long
run and select slightly larger generators,for future expansion and to add on more equipment to the load infuture.
TABLE I
ALTERNATOR SPECIFICATION
Diesel Generator Set Specification
Prime Power 1800kW/2250KVA
Frequency 50Hz/1500 rmp
Power Factor 0.8lagging
Output Power 230V/400V
Output Current 3240/3564A
Phases 3 phases 4 wires