MV design guide - Schneider Electric
MV design guide - Schneider Electric
MV design guide - Schneider Electric
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General contents<br />
<strong>MV</strong> <strong>design</strong> <strong>guide</strong><br />
Presentation 5<br />
Metal-enclosed factory-built equipment 5<br />
Voltage 6<br />
Current 8<br />
Frequency 9<br />
Switchgear functions 9<br />
Different types of enclosures 10<br />
Design rules 11<br />
Short-circuit power 11<br />
Short-circuit currents 12<br />
Transformer 13<br />
Synchronous generator 14<br />
Asynchronous motor 14<br />
Reminder 15<br />
Three phase calculation example 17<br />
Busbar calculation 21<br />
Thermal withstand 24<br />
Electrodynamic withstand 27<br />
Intransic resonant frequency 29<br />
Busbar calculation example 31<br />
Dielectric withstand 38<br />
Dielectric strength of the medium 38<br />
Shape of parts 39<br />
Distance between parts 39<br />
Protection index 41<br />
IP code 41<br />
IK code 41<br />
Switchgear definition 45<br />
Medium voltage circuit breaker 45<br />
Current transformer 54<br />
Voltage transformer 61<br />
Derating 64<br />
Units of measure 67<br />
Basic units 67<br />
Common magnitudes and units 67<br />
Correspondence between Imperial units<br />
and international system units (SI) 69<br />
Standards 71<br />
Quoted standards 71<br />
IEC-ANSI comparison 72<br />
References 81<br />
<strong>Schneider</strong> <strong>Electric</strong> documentation references 81<br />
Index 83<br />
<strong>Schneider</strong> <strong>Electric</strong><br />
Merlin Gerin <strong>MV</strong> <strong>design</strong> <strong>guide</strong><br />
3
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