Sample interview questions: Can you explain your knowledge of electrical system surge protection and transient voltage suppression?
Sample answer:
Electrical System Surge Protection and Transient Voltage Suppression
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Understanding Surges and Transients:
- Surges are sudden, high-energy spikes in electrical voltage.
- Transients are brief, high-amplitude voltage deviations caused by inductive or capacitive loads switching on or off.
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Surge Protection Devices (SPDs):
- Protect against overvoltage events by diverting excess energy to ground.
- Types of SPDs include metal oxide varistors (MOVs), gas discharge tubes (GDTs), and silicon avalanche diodes (SADs).
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Transient Voltage Suppressors (TVSs):
- Limit transient voltage spikes by clamping or absorbing excess energy.
- Common TVS technologies include Zener diodes, TVS diodes, and bidirectional suppressor diodes.
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