Skills and Trades

The simplest transformer is made of two separate insulated coils mounted on a common iron frame.

Started by campbellfam07

The secondary winding of a step-down transformer has more turns than the primary winding.

Started by camac77

The primary and secondary windings of autotransformers are not electrically isolated from each other.

Started by haydenjmcm

The no-load efficiency of a transformer is higher than its full-load efficiency.

Started by Apple716

The load current of a step-up transformer is always less than the primary current.

Started by wqwpfwpoefnpwenf

The high-voltage winding leads of a transformer are identified as X1 and X2.

Started by campbellfam07

The device shown is a potential transformer.Photo: Elkor Technologies Inc.

Started by jlol3

Single-phase transformers can be electrically connected to form three-phase transformer banks.

Started by amymoore

Over current protection is different for transformers rated over 1000 volts, compared to those rated ...

Started by majortom123

Movement of the coils within a transformer produces the transformation of voltage.

Started by 0220521

Losses occurring in transformers appear as heat.

Started by jmoore1989

It is safe to use a transformer rated for 60 Hz on a 50 Hz circuit.

Started by agstelzer01

In a three-phase wye-connected transformer the phase voltage is equal to the line voltage.

Started by moore.cailinf

In a delta-connected three-phase transformer connection, the line current is equal to 1.73 times the ...

Started by lol1012

Harmonics can extend the service life of a transformer.

Started by jmoore1989

Current transformers are used to step-down heavy currents for metering purposes.

Started by Rafic Kaaki

A wye-connected transformer has its windings connected in series.

Started by gboileau

A transformer short-circuit condition is said to exist whenever the transformer is delivering one to ...

Started by dabomba718

A single three-phase transformer will operate more efficiently than three single-phase units.

Started by jordangardner

A current transformer should always have its secondary shorted when not connected to an external load.

Started by bvyeehaw

Which of the following would be classified as a nonlinear load?

Started by mccallkeeler

When connecting three transformers for three-phase use with the delta secondary, a voltage test ...

Started by erikka246

Transformers are normally rated in

Started by campbellfam07

Transformer cores are laminated to minimize ________ currents.

Started by jacob816

The voltage ratio for a transformer with a primary rated voltage of 120 and a secondary rated voltage of 24 is

Started by Austinleez3