Monday, January 17, 2011

ANSI CODES for protection devices

ANSI CODES for protection devices

List of Device Numbers and Acronyms


1 - Master Element 51 - AC Inverse Time Overcurrent Relay
2 - Time Delay Starting or Closing Relay 52- AC Circuit Breaker
3 - Checking or Interlocking Relay 53 - Exciter or DC Generator Relay
4 - Master Contactor 54 - Turning Gear Engaging Device
5 - Stopping Device 55 - Power Factor Relay
6 - Starting Circuit Breaker 56 - Field Application Relay
7 - Rate of Change Relay 57 - Short-Circuiting or Grounding Device
8 - Control Power Disconnecting Device 58 - Rectification Failure Relay
9 - Reversing Device 59 - Overvoltage Relay
10 - Unit Sequence Switch

60 - Voltage or Current Balance Relay
11 - Multi-function Device 61 - Density Switch or Sensor
12 - Overspeed Device 62 - Time-Delay Stopping or Opening Relay
13 - Synchronous-speed Device 63 - Pressure Switch
14 - Underspeed Device 64 - Ground Detector Relay
15 - Speed - or Frequency, Matching Device 65 - Governor
16 - Data Communications Device 66 - Notching or Jogging Device
17 - Shunting or Discharge Switch 67 - AC Directional Overcurrent Relay
18 - Accelerating or Decelerating Device 68 - Blocking or "Out-of-Step" Relay
19 - Starting to Running Transition Contactor 69 - Permissive Control Device
20 - Electrically Operated Valve

70 - Rheostat
21 - Distance Relay 71 - Liquid Level Switch
22 - Equalizer Circuit Breaker 72 - DC Circuit Breaker
23 - Temperature Control Device 73 - Load-Resistor Contactor
24 - Over Fluxing Relay 74 - Alarm Relay
25 - Synchronizing or Synchronism-Check Device
25A - Automatic Synchronizing relay
75 - Position Changing Mechanism
26 - Apparatus Thermal Device 76 - DC Overcurrent Relay
27 - Under-voltage Relay
27P- Phase UV relay
27N/27G -
          Neutral/Ground UV relay
27A- Aux. UV relay
77 - Telemetering Device
28- Flame Detector 78 - Phase-Angle Measuring Relay
29 - Isolating Contactor or Switch 79 - AC Reclosing Relay
30- Annunciator Relay 80 - Flow Switch
31 - Separate Excitation Device 81 - Frequency Relay
32R- Reverse Power Relay
32F- Low Forward Power Relay
82 - DC Reclosing Relay
33 - Position Switch 83 - Automatic Selective Control or Transfer Relay
34 - Master Sequence Device 84 - Operating Mechanism
35 - Brush-Operating or Slip-Ring Short-Circuiting Device 85 - Communications,Carrier or Pilot-Wire Relay
36 - Polarity or Polarizing Voltage Devices 86 - Lockout Relay
37 - Undercurrent or Under-power Relay 87 - Differential Protective Relay
38 - Bearing Protective Device 88 - Auxiliary Motor or Motor Generator
39 - Mechanical Condition Monitor 89 - Line Switch
40 - Loss of field (Field Failure or Loss
        of Excitation.
90 - Regulating Device
41 - Field Circuit Breaker 91 - Voltage Directional Relay
42 - Running Circuit Breaker 92 - Voltage and Power Directional Relay
43 - Manual Transfer or Selector Device 93 - Field Changing Contactor
44 - Unit Sequence Starting Relay 94 - Tripping or Trip-Free Relay
45 - Abnormal Atmospheric Condition Monitor 95 - For specific applications where other numbers are not suitable
46 - Reverse-phase or Phase-Balance Current Relay 96 - For specific applications where other numbers are not suitable
47 - Phase-Sequence or Phase-Balance Voltage Relay 97 - For specific applications where other numbers are not suitable
48 - Incomplete Sequence Relay 98 - For specific applications where other numbers are not suitable
49 - Machine or Transformer, Thermal Relay 99 - For specific applications where other numbers are not suitable
50 - Instantaneous Overcurrent Relay AFD - Arc Flash Detector
DFR - Digital Fault Recorder CLK - Clock or Timing Source
ENV - Environmental Data DDR - Dynamic Disturbance Recorder
HIZ - High Impedance Fault Detector PDC - Phasor Data Concentrator
HMI - Human Machine Interface PMU - Phasor Measurement Unit
HST - Historian PQM - Power Quality Monitor
LGC - Scheme Logic RIO - Remote Input/Output Device
MET - Substation Metering RTU - Remote Terminal Unit/Data Concentrator

SER - Sequence of Events Recorder

TCM - Trip Circuit Monitor

SOTF - Switch On To Fault

 For Description of all codes visit perticular pages...not full completed....as soon as I will finish I will post remaining also.