File name: Ansi Standard Device Numbers Pdf
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Standard for Use of the International System of Units (SI): The Modern Metric System, . ANSI DEVICE NUMBERS ansi device GE Power Management 2 Time-delay 21 . Types: ORDER NOW · Contact Us · Contacts. %PDF %âãÏÓ 17 0 obj > endobj xref 17 26 n n n n n n n n n n n n n n n Device number Definition and function 1 Master element is the initiating device, such as a control switch, voltage relay, float switch etc., that serves either directly, or through such permissive devices as protective and time-delay relays, to place an equip-ment in or out of operation. 2 Time-delay starting or closing relay is a device that. Feb 8, · The ANSI Standard Device Numbers[1] [2] [3] 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. 31 Separate Excitation Device 32 Directional Power Relay 32L Low Forward Power 32N Wattmetric Zero-Sequence Directional 32P Directional Power 32R Reverse Power Device No. Description 33 Position Switch 34 Master Sequence Device 35 Brush-Operating or Slip-ring Short Circuiting Device 36 Polarity or Polarizing Voltage Device 37 Undercurrent or. 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 C This system is used with diagrams that are found in instruction books and in specifications. The document discusses ANSI device numbers which identify the functions of protective devices like relays and circuit breakers in electrical power systems. It provides a list of over standard device numbers along with their associated functions to classify components.
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