8/9/2019 Design and Manufacture of 100 Kva Crgo Core Distribution Transformer With Csp Features
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A Project seminar on
DESIGN AND MANUFACTURE OF 100 KVA
CRGO CORE DISTRIBUTION TRANSFORMER
WITH CSP FEATURES
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Contents
Abstract
Introduction
Types of Distribution Transformers Conventional CSP
Transformer construction
Core Construction and Winding details
Conclusion
Reference
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Abstract
This project deals with Design and manufacturing of
CRGO core distribution transformer with CSP
features.
As the faults in the distribution network are more. so
it is important to install transformers with CSP
features.
The CSP features of transformers are explained in
detail.
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Introduction:Introduction:
The distribution transformer forms vital equipment inThe distribution transformer forms vital equipment in
the power network.the power network.
Distribution transformers will be energized throughDistribution transformers will be energized through
out the day, which means No load loss playsout the day, which means No load loss plays
prominent role.prominent role.
Energy efficiency distribution transformers areEnergy efficiency distribution transformers are
gaining its importance recentlygaining its importance recently..
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Types ofDistribution TransformersTypes ofDistribution Transformers::
Conventional NonConventional Non--CSPCSP
SealedNonSealed
Non--CSPCSP
SealedCSPSealedCSP
ConventionalCSPConventionalCSP
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CSPTCompletely self protected Transformer
CSPDue to the higher failure rate of secondary
Failure rateApprox 20% in India compared to 1-2% in advanced
countries.
CSP will do
It avoids major damages to the transformers by powersystem faults, by disconnecting the transformer (on either
side) from faulty circuit.
Conventional CSP
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Main Reasons forFailure
Changing weather conditions
Lengthy low voltage lines
Short circuit due to clashing of loosely string
LVlines.
Over loading of transformers
Lightning etc
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Advantages of CSP Technology
Enables a transformer to protect itself from faults
Uneconomical overloading on a regular basis is avoided
No scope of ingress of moisture
Failure due to undue pressure rise will not be there.
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ComponentsofCSPT
Signal light High voltage fuse
Emergency control magnetic trip
Surge arrester: For lightning protection
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Transformer construction:Transformer construction:
CoreCore
WindingsWindings InsulationInsulation
Core coilassemblyCore coilassembly
TankTank
FittingsandaccessoriesFittingsandaccessories
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CoreCore
Type: CRGOType: CRGO
CRGO : (Cold rolled grain oriented silicon steel)CRGO : (Cold rolled grain oriented silicon steel)
Available grades :M3, M4, M5, MOH etcAvailable grades :M3, M4, M5, MOH etc
Thicknesses : 0.23mm; 0.27mm; 0.30mm etcThicknesses : 0.23mm; 0.27mm; 0.30mm etc
Annealing Temp.: 800 Deg.CAnnealing Temp.: 800 Deg.C
Saturation Flux density : 1.92 TeslaSaturation Flux density : 1.92 Tesla
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Core Construction:Core Construction:
Stacked CoreStacked Core
Three Limbed core typeThree Limbed core type
Wound coreWound core
Shell typeShell type
Core typeCore type
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Three Limbed Stacked CoreThree Limbed Stacked Core
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Core Type Wound CoreCore Type Wound Core
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WindingsWindings
Winding Materials:Winding Materials:
CopperCopper
AluminumAluminum
Insulation:Insulation:
Super EnamelSuper Enamel
Double PaperDouble Paper
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CCA of Stacked Core Construction & SingleCCA of Stacked Core Construction & Single
Coil WindingCoil Winding
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CCA of Stacked Core Construction & CrossCCA of Stacked Core Construction & Cross
Over CoilsOver Coils
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Conclusion
Finally it is concluded from the abovediscussion that CSP features are best suited for
distribution transformers in the present day
situation.
FutureScope
Design considerations will be covered in the
further discussion after completion of project.
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THANK YOUTHANK YOU
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