derating in the power systems equipments

[hhk]

tax pulse transformer

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

 

[echo47]

ups derating

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

 

[amir_rastegar2003]

see the following links:

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

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


regards.

 

[amir_rastegar2003]

a new link for derating:

**broken link removed**

 

[amir_rastegar2003]

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

 

[epp]

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.

 

[amir_rastegar2003]

new link:

elect.mrt.ac.lk/K_factor_IEE03.pdf