Breaker Symbol In Single Line Diagram

Basics 9 4 16 kv pump schematic.

Breaker symbol in single line diagram. To read and understand electrical drawings it is necessary to know the. Electrical one line diagram symbols one line diagrams are an important means of communicating the components relationships and connections within a circuit or electrical system. Basics 3 4 16 kv bus 1 line. Each three conductor set of power wires is shown as a single line each transformer appears as a single primary winding and single secondary winding rather than three of each each motor and generator is a simple circle rather than a complete set of windings motor.

Medium voltage circuit breakers shown on a one line typically incorporate the basic square breaker symbol with the ansi device number 52 inside. Reading and understanding electrical drawings electrical drawings can represent anything from a single line power distribution to a power or control circuit and are prepared using various symbols for electrical devices and their interconnections with lines representing conductors or wires used for interconnections. The symbol for a thermal fuse used in any electrical circuit diagram. D input circuit breaker b fuse rating b type refer to disconnect schedule fused disconnect switch.

Basics 10 480 v pump schematic. Basics 2 7 2 kv bus 1 line. A single line can show all or part of a system. The single line diagram in the following paragraphs is an example developed for illustrative purposes only and was developed to show a wide range of product applications.

Basics 4 600 v 1 line. Single line symbols electrical symbols used to represent various electrical devices for usages in electrical schematic design. Electrical plan symbols electrical one line symbols duplex receptacle a circuit designation b device type designation. When interpreting a single line diagram.

Basics 5 480 v mcc 1 line. This time however the circuit breaker is a fixed low voltage circuit breaker as indicated by the symbol. Basics 6 7 2 kv 3 line diagram. Basics 7 4 16 kv 3 line diagram.

The symbol for telephone line protector which protects the telephone line from the surges or lightning to prevent any damage to the conductor or the equipment. Moving to the bottom area of the one line notice that the circuit breaker b3 in the middle is connected to the bus in the bottom portion. It is very versatile and comprehensive because it can depict very simple dc circuits or a very complicated three phase system. The one line diagram symbols presented here are commonly accepted symbols.

Basics 11 mov schematic with block included. Single line diagram sld we usually depict the electrical distribution system by a graphic representation called a single line diagram sld. Basics 8 aov elementary block diagram.