Transformers Level 3 questions and
answers
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The _____ is a US national organization that helps identify industrial and public needs for
standards. ✔✔ANSI - American National Standards Institute
When installed indoors, dry-type transformers over _____ kVA are generally required to be
installed in a fire-resistant transformer room. ✔✔112.5
An insulation _____ test is performed to measure the leakage current through the coil insulation.
✔✔resistance
______ transformers are normally referred to as dry-type transformers. ✔✔Air-cooled
A(n) _____ is a transformer with no electrical connection between the primary and the
secondary. ✔✔two-winding transformer
The secondary of a _____ transformer must be allowed to be open when the primary circuit is
energized. ✔✔current
Industrial facilities may want to isolate their office loads from their industrial loads because of
the possibility of _____ problems ✔✔power quality
answers
Save
The _____ is a US national organization that helps identify industrial and public needs for
standards. ✔✔ANSI - American National Standards Institute
When installed indoors, dry-type transformers over _____ kVA are generally required to be
installed in a fire-resistant transformer room. ✔✔112.5
An insulation _____ test is performed to measure the leakage current through the coil insulation.
✔✔resistance
______ transformers are normally referred to as dry-type transformers. ✔✔Air-cooled
A(n) _____ is a transformer with no electrical connection between the primary and the
secondary. ✔✔two-winding transformer
The secondary of a _____ transformer must be allowed to be open when the primary circuit is
energized. ✔✔current
Industrial facilities may want to isolate their office loads from their industrial loads because of
the possibility of _____ problems ✔✔power quality
