Advantages and Disadvantages of Different Types of Neutral ...
Advantages and Disadvantages of Different Types of Neutral ...
Advantages and Disadvantages of Different Types of Neutral ...
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LOW RESISTANCE GROUNDED<br />
POWER SYSTEMS<br />
400 AMP GROUNDING<br />
<strong>Disadvantages</strong><br />
• Relatively large ground fault is required <strong>and</strong> thermal damge <strong>and</strong> core<br />
restacking is possible<br />
• The faulted machine is shutdown<br />
• Starter fuse may also operate<br />
• Must trip upstream circuit breaker.<br />
• Has been replaced by high resistance grounded systems with modern<br />
ct’s <strong>and</strong> relays.<br />
<strong>Advantages</strong><br />
• 400 amp grounding does look at a large part <strong>of</strong> the machine winding.<br />
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