Power Transformer Maintenance and Acceptance Testing Book
Table Of Content
INTRODUCTION / SAFETY
Maintenance and testing
safety
Nameplate data
Maintenance and testing
safety
Nameplate data
CONSTRUCTION THEORY
Transfomer applications
Magnetic flux
Winding, current and voltage ratios
Core construction
Core form construction
Shell form construction
Transfomer applications
Magnetic flux
Winding, current and voltage ratios
Core construction
Core form construction
Shell form construction
TRANSFORMER CONNECTIONS AND TAPS
Tapped Primaries and secondaries
Polarity
Autotransfomers
Single and multi-phase relationships
Delta-wye and wye-delta displacements
COOLING CONSTRUCTION CLASSIFlCATIONS
Classifications
Dry-type transfomers
Liquid-filled transformers
Tank construction
Free breathing tanks
Consevator tank
Gas-oil sealed tank
Automatic inet gas sealed tanks
Sealed tank type
Classifications
Dry-type transfomers
Liquid-filled transformers
Tank construction
Free breathing tanks
Consevator tank
Gas-oil sealed tank
Automatic inet gas sealed tanks
Sealed tank type
INSULATING FLUIDS
Oil
Oil testing
Dissolved gas in oil analysis
Transformer oil sampling
Synthetics and other insulating fluids
Oil
Oil testing
Dissolved gas in oil analysis
Transformer oil sampling
Synthetics and other insulating fluids
INITIAL ACCEPTANCE INSPECTION TESTINGAcceptance
Pre arrival preparations
Receiving and inspection
Moving and storage
Internal inspection
Testing for leaks
Vacuum filling
Pre arrival preparations
Receiving and inspection
Moving and storage
Internal inspection
Testing for leaks
Vacuum filling
TRANSFORMER TESTINGTest data
Direc tcurrent testing
Alternating current testing
Direc tcurrent testing
Alternating current testing
TRANSFORMER AUXILIARY EQUIPMENTAuxiliaries
Bushings
Pressure relief devices
Pressure gauges
Temperature gauges
Tap changers
Lightning (surge) arresters
Bushings
Pressure relief devices
Pressure gauges
Temperature gauges
Tap changers
Lightning (surge) arresters
COMPREHENSIVE MAlNTENANCE / TESTING PROGRAMTransformer maintenance
Maintenance and testing program
Documentation
Scheduling
Maintenance and testing program
Documentation
Scheduling
STATUS OF TRANSFORMER MONITORING AND DIAGNOSTICSIntroduction
Transformer Monitoring
Transformer diagnostics
Conclusions
Transformer Monitoring
Transformer diagnostics
Conclusions
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