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Transformers have a noise rating based on the ___ rating.

Transformers have a noise rating based on the ___ rating.

Published August 27, 2024
Categorized as Uncategorized

If the rated primary current of the transformer is less than…

If the rated primary current of the transformer is less than ___ A, the rating of the OCPD is permitted to be set at not more than 167% of the rated primary current.

Published August 27, 2024
Categorized as Uncategorized

A metal oxygen variable (MOV) is a nonlinear resistor that c…

A metal oxygen variable (MOV) is a nonlinear resistor that can change resistance with changes in current.

Published August 27, 2024
Categorized as Uncategorized

A(n) ___ test between the primary winding and secondary wind…

A(n) ___ test between the primary winding and secondary winding can be run to verify that all the windings are wired and operating correctly.

Published August 27, 2024
Categorized as Uncategorized

Insulation resistance tests should be conducted at a tempera…

Insulation resistance tests should be conducted at a temperature of ___°F.

Published August 27, 2024
Categorized as Uncategorized

Because ___ contain polychlorinated biphenyls, a class of po…

Because ___ contain polychlorinated biphenyls, a class of poisonous chemical, they have been banned by the EPA.

Published August 27, 2024
Categorized as Uncategorized

The type of electrical system determines the type of transfo…

The type of electrical system determines the type of transformer required.

Published August 27, 2024
Categorized as Uncategorized

When two transformers are connected in parallel with each ot…

When two transformers are connected in parallel with each other, the connection of the two windings makes up a closed ___ circuit.

Published August 27, 2024
Categorized as Uncategorized

When selecting the two units in an open delta transformer co…

When selecting the two units in an open delta transformer configuration, they must be sized to operate at ___% or less of their rated capacity.

Published August 27, 2024
Categorized as Uncategorized

During insulation resistance testing, a transformer should n…

During insulation resistance testing, a transformer should not be in service and should not be connected to any ___.

Published August 27, 2024
Categorized as Uncategorized

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