Overvoltage Protection and Insulation Coordination in Power Systems
Overvoltage Protection and Insulation Coordination in Power Systems
Overvoltage Protection and Insulation Coordination in Power Systems
Create successful ePaper yourself
Turn your PDF publications into a flip-book with our unique Google optimized e-Paper software.
Procedure for <strong>Insulation</strong> <strong>Coord<strong>in</strong>ation</strong> <strong>in</strong> Four Steps<br />
Fachgebiet<br />
Hochspannungstechnik<br />
Determ<strong>in</strong>ation of the required withst<strong>and</strong> voltages U rw<br />
• The required withst<strong>and</strong> voltages are determ<strong>in</strong>ed by convert<strong>in</strong>g the coord<strong>in</strong>ation withst<strong>and</strong><br />
voltages to appropriate st<strong>and</strong>ard test conditions.<br />
• Usually different from the coord<strong>in</strong>ation withst<strong>and</strong> voltages.<br />
• Derived from the coord<strong>in</strong>ation withst<strong>and</strong> voltages U cw by the safety factor K s <strong>and</strong>/or the<br />
altitude correction factor K a.<br />
<strong>Overvoltage</strong> <strong>Protection</strong> <strong>and</strong> <strong>Insulation</strong> <strong>Coord<strong>in</strong>ation</strong> / Chapter 1 - 36 -<br />
[IEC 60071-1]
Change language