Electrical Library

Three-phase symbols

In system single-line diagrams, transformers are often depicted using the symbol for a single-phase air-core transformer. This representation does not necessarily mean the transformer is an air-core type or single-phase....

Three-phase symbols

In system single-line diagrams, transformers are often depicted using the symbol for a single-phase air-core transformer. This representation does not necessarily mean the transformer is an air-core type or single-phase....

Ganged Switch Symbology

When a switch is used in a circuit, it may contain multiple sets of contacts or smaller internal switches. These internal switches are depicted individually on a schematic. Often, the...

Ganged Switch Symbology

When a switch is used in a circuit, it may contain multiple sets of contacts or smaller internal switches. These internal switches are depicted individually on a schematic. Often, the...

Examples of Relays and Relay Contacts

To accurately interpret electrical system diagrams and schematics, it's essential to understand the condition or state of each component. In electrical schematics that detail individual relays and contacts, components are...

Examples of Relays and Relay Contacts

To accurately interpret electrical system diagrams and schematics, it's essential to understand the condition or state of each component. In electrical schematics that detail individual relays and contacts, components are...

Example Electrical Single Line

For large power distribution systems, an electrical single-line diagram is often used to illustrate the entire system or specific sections. This type of schematic highlights the main power sources, breakers,...

Example Electrical Single Line

For large power distribution systems, an electrical single-line diagram is often used to illustrate the entire system or specific sections. This type of schematic highlights the main power sources, breakers,...