Series voltage source vs parallel voltage source

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Series voltage connections are often considered safer than parallel connections due to the way they handle faults. In a series configuration, if one component fails, the entire circuit is interrupted, preventing further damage or hazards. Conversely, in parallel connections, a failure in one component can allow current to continue flowing through other paths, potentially leading to overheating or electrical fires. Understanding the implications of these configurations is crucial for safety in power systems. Proper design and maintenance are essential to mitigate risks associated with both connection types.
WIlliam Powell
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Power systems isn't my area of specialty and I've been doing some reading where it was stated that series voltage connections are safer than parallel connection. I don't fully understand why though.
website address:
http://www.allaboutcircuits.com/textbook/alternating-current/chpt-10/single-phase-power-systems/#
 
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Consider what is dangerous about the connections: what happens when something goes wrong.
 
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