Table of ANSI IEEE Standard Device Numbers - Systems Engineering ANSI IEEE Standard Device Numbers are below: (the more commonly used ones are in bold) 86T is a Lockout Relay for a Transformer 59B is a Bus Overvoltage Relay 50N is an Instantaneous Overcurrent Relay This table details ANSI IEEE Standard Device Numbers as used for protective relaying in North America Suffixes for numbers are also suggested
ANSI Codes - Device Designation Numbers - EEP 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) These types of devices protect electrical systems and components from damage when an unwanted event occurs, such as an electrical fault
ANSI Device Numbers and Acronyms - Electrical Volt These devices protect the electrical network in the case of a fault in the system The list of ANSI device numbers with their acronyms is as given below List of ANSI device numbers and acronyms 1 – Master Element; 2 – Time-delay Starting or Closing Relay; 3 – Checking or Interlocking Relay, complete Sequence; 4 – Master Protective
ANSI IEEE Function Number Codes - Control. com ANSI IEEE codes dictate how and when to apply devices for certain circuits or situations Some devices fall under multiple designations and may receive dual code numbers (for example 50 51 relay) Some code designations are expressly written on circuit diagrams to identify how a device is being used
Protection and Control Device Numbers and Functions - Rockwell Automation These numbers are based on a system that is adopted by a standard for automatic switchgear by Institute of Electrical and Electronics Engineers (IEEE), and incorporated in American Standard C37 2-1996 This system is used with diagrams that are found in instruction books and in specifications
Decoding ANSI Codes for Protection Relays - GoSwitchgear This ANSI protection code list provides an overview of standards used in various relays, including but not limited to overload protection relays, general-purpose relays, and more Commonly Used ANSI Codes Some of the commonly used ANSI Relay Codes: ANSI 50 51: Phase Overcurrent; ANSI 67: Directional Overcurrent; ANSI 49RMS: Thermal Overload