DictFormer: Tiny Transformer with Shared Dictionary

AUTOTRANSFORMER -A transformer that has only one winding per phase; part of the winding is shared between the primary and secondary CONDITION New -All materials and components are new. Remanufactured -Transformer coils have been rewound; this may include all primary and secondary coils or primary coils only; even if secondary coils are not rewound they will carry the same warranty as the rewound primary coils Reconditioned -Transformer has passed all standard tests; if needed, broken or missing parts are replaced Rental -Transformer condition can vary but all rental units will be in good, working condition CONVENTIONAL VS CSP (POLE MOUNT) Conventional -A pole mounted transformers with two primary bushings is sometimes referred to as "conventional". They can be used individually to provide single-phase power or they can be banked with two like transformers to provide three-phase power. Conventional -Pole mounted transformers with one primary bushing are utility type transformers and are the type most commonly used in residential applications. The primary bushing is labeled "H1" and a grounding nut on the tank is labeled "H2". This transformer is connected between a phase and neutral. Some of these transformers are CSP (completely self-protected). They usually include a primary fuse, a primary arrester, and a secondary breaker with weak-link. DEAD FRONT -Dead front refers to terminations where energized parts are enclosed in molded rubber. A typical dead front connection consists of three parts -a bushing well (installed at the factory), a bushing insert, and an elbow. Incoming (and outgoing) cables are inserted into the elbow to prevent any exposed wire or terminals. See our Transformer Components page for more information. DELTA -A Delta connection has the windings of three single-phase transformers connected in series with each other to form a closed circuit; on a Delta connection of a three-phase transformer, the transformer will typically have three (3) terminations or bushings. 2023.09.21 This document is intended as a general informational guide only. Before performing any work or purchasing any equipment, you should consult your electrician or electrical engineer. Alfa Transformer is not responsible for misinterpretation or misuse of this information.