Reactors and Isolation Transformers
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| show | Notch
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| 2. __ is the opposition to current flow in an AC circuit. (Choking; Impedance; Reactance; Shielding) | show 🗑
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| 3. A __ is an inductor whose inductance is controlled through the use of a magnetic field created by a second winding wound around the same iron core as the primary winding. (Next Card) | show 🗑
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| show | saturable-core reactor
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| 4. Electric motors typically draw many times their full-load current during startup. T/F | show 🗑
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| show | 3%
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| show | True
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| show | Common-mode noise
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| show | Common-mode choke
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| show | Common-mode choke
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| 9. In a saturable-core reactor, large amounts of DC current can be controlled by a small amount of AC current. T/F | show 🗑
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| 10. Zero-crossover are often used for timing signals and to activate equipment T/F | show 🗑
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| show | True
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| 12. Explain the formation of voltage notches when using SCRs | show 🗑
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| show |
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| show | False
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| 15. Electrostatic shields can prevent common-mode noise from transferring from the transformer's primary to the secondary only if the secondary is grounded T/F | show 🗑
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| 16. __ help eliminate voltage spikes by slowing down the rate of change in the drive output voltage. ( Drive isolation transformers; Output reactors; Output rectifiers; Variable-frequency drives) | show 🗑
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| 17. To reduce notching, a reactor can be used to add impedance. the added impedance__ (next card_ | show 🗑
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| (Decreases notch depth & narrows notch width; | show 🗑
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| show | page 148
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| 19. A __ is a reactor used to restrict the current to AC or DC drives in the case of short circuits in the drive itself | show 🗑
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| 20. A drive isolation transformer is designed with additional __ to reduce power quality problems associated with nonlinear loads ( flux; reactance; resonance; shielding) | show 🗑
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| 21. List 3 benefits associated with grounding the secondary of a drive isolation transformer | show 🗑
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| show | True
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| 23. List 3 uses for line input reactors | show 🗑
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| show | True
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| show | Reactor
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| show | False
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| show | p 150
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| show |
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Created by:
JoshHampton