electricalscho

Two or more ducts or conduits used as part of a system.

A transformer that has switched windings allowing its use on two different primary voltages.

A switch used to select primary windings of a transformer.

Delivery Traffic Indication Message. A DTIM is a signal sent as part of a beacon by an access point to a client device in sleep mode, alerting it that a packet of data awaits delivery.

Transformers that use only dry-type materials for insulation. These have no oils or cooling fluids and rely on the circulation of air about the coils to provide necessary cooling. Such units are usually limited in size to a few hundred kVA because of prob