derating in the power systems equipments

tax pulse transformer

hi
plz help me about derating in the power systems equipments
thank you.

ups derating

Please clarify "power systems". That can mean several different things.

see the following links:

1) wwwcat.inist.fr/?aModele=afficheN&cpsidt=2829366

2) www1.eere.energy.gov/industry/bestpractices/pdfs/mc-0381.pdf


regards.

a new link for derating:

**broken link removed**

Technical Notes on transformers

TN11 - DC Holding Circuits
TN14 - Leakage Inductance vs. Winding Splits
TN16 - Transducer Loss Measurement Using A Network/Spectrum Analyzer
TN17 - Transformer Equivalent Circuit
TN18 - Calculating Modem Transformer Insertion Loss
TN23 - Impedance measurements of telephone lines
TN30 - "Tax" pulse frequencies by country
TN33 - dBm to RMS Voltage Chart, Excel and PDF versions
TN34 - Return Loss Test Method 999-2318 and Summary Schematic
TN35 - VOM Measures Complex Impedances
TN37 - Return Loss Calculations
TN43 - Tax Pulse Product Summary
TN54 - How to measure Total Harmonic Distortion
TN67 - Handling Guidelines
TN69 - Transformer Theory Seminar Notes
TN79 - Overview of IEC 950 - EN 60950 (BABT), UL 1950 / CSA 950
TN82 - Transformer Modeling Tips
TN83 - 3750 V of Isolation Not Required at the Network Termination
TN84 - Constants in transformer equations: effect of wave shapes
TN85 - Scrapless Laminations
TN88 - CTR-21 DAA
TN89 - ADSL / POTS Splitter Application Drawing
TN90 - EIA Date Code Spreadsheet
.
.
.
More

The site also has Transformer Analysis Software

Link h**p://www.midcom-inc.com/Tech/TechNotes.asp

It is usual that rated power of equipment (diesel generator set, UPS, transformer) should be derated above 2000m above sea level because it is much harder to cool it.

new link:

elect.mrt.ac.lk/K_factor_IEE03.pdf