Ansi ieee standard device numbers 1 master element 2 time delay starting or closing relay 3 checking or interlocking relay 4 master contactor 5 stopping device 6 starting circuit breaker 7 rate of change relay 8 control power disconnecting device 9 reversing device 10 unit sequence switch 11 multifunction device.
Ansi code list electrical.
In the design of electrical power systems the ansi standard device numbers denote what features a protective device supports such as a relay or circuit breaker.
These types of devices protect electrical systems and components from damage when an unwanted event occurs such as an electrical fault.
Codes and standards ieee protective relays reference.
In the design of electrical power systems the ansi standard device numbers ansi ieee standard c37 2 denote what features a protective device supports such as a relay or circuit breaker.
Ansi ieee standard device numbers in north america protective relays are generally referred to by standard device numbers.
Group codes must be entered with all reason code s to establish financial liability for the amount of the adjustment or to identify a post initial adjudication adjustment.
1 public and private premises including buildings structures mobile homes recreational vehicles and floating buildings br 2 yards lots.
All of the functions performed by device 11 shall be defined in the drawing legend or device function definition list.
This code covers the installation and removal of electrical conductors equipment and raceways.
Signaling and communications conductors equipment and raceways.
And optical fiber cables and raceways for the following.
Electrical device numbers ansi ieee.
In the design of electrical power systems the ansi standard device numbers ansi ieee standard c37 2 standard for electrical power system device function numbers acronyms and contact designations identifies the features of a protective device such as a relay or circuit breaker these types of devices protect electrical systems and components from damage when an unwanted event occurs such.
Protection relay ansi standards.
Gedigitalenergycom 1 ansi standard device numbers common acronyms suffixes description 1 positive sequence 2 negative sequence a alarm auxiliary power ac alternating current an anode b bus battery or blower bf breaker failure bk brake bl block valve bp bypass bt bus tie bu backup c capacitor condenser compensator carrier current case or compressor ca cathode ch check valve.
Letters are sometimes added to specify the application ieee standard c37 2 2008.
These types of devices protect electrical systems and components from damage when an unwanted event.
Even in those parts of the world where iec standards are predominate the use of ansi numbering for protective device functions is still common.
Home ansi codes device designation numbers.
