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ANSI Device Numbers Flashcards
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ANSI Device Numbers Flashcards

Created by
@ReputableKelpie

Questions and Answers

What does the ANSI device number 2 refer to?

  • Master Contactor
  • Time delay starting/closing relay (correct)
  • Stopping
  • Distance Relay

    • What is ANSI device number 3?

    Checking or Interlocking Relay

    What does ANSI device number 4 refer to?

    Master Contactor

    What is the definition of ANSI device number 5?

    <p>Stopping</p> Signup and view all the answers

    What does ANSI device number 6 refer to?

    <p>Starting Circuit Breaker</p> Signup and view all the answers

    What is ANSI device number 7?

    <p>Rate of Change Relay</p> Signup and view all the answers

    What does ANSI device number 8 refer to?

    <p>Control Power Disconnecting Device</p> Signup and view all the answers

    What is the definition of ANSI device number 9?

    <p>Reversing Device</p> Signup and view all the answers

    What does ANSI device number 10 refer to?

    <p>Unit Sequence Switch</p> Signup and view all the answers

    What is ANSI device number 11?

    <p>Multi-functioning Device</p> Signup and view all the answers

    What does ANSI device number 12 refer to?

    <p>Overspeed Device</p> Signup and view all the answers

    What is the definition of ANSI device number 13?

    <p>Synchronous speed device</p> Signup and view all the answers

    What does ANSI device number 14 refer to?

    <p>Underspeed Device</p> Signup and view all the answers

    What is ANSI device number 15?

    <p>Speed or frequency matching device</p> Signup and view all the answers

    What does ANSI device number 16 refer to?

    <p>Data Communications Device</p> Signup and view all the answers

    What is ANSI device number 17?

    <p>Shunting or Discharge Switch</p> Signup and view all the answers

    What does ANSI device number 18 refer to?

    <p>Accelerating or Decelerating Device</p> Signup and view all the answers

    What is the definition of ANSI device number 19?

    <p>Starting to Running Transition Contactor</p> Signup and view all the answers

    What does ANSI device number 20 refer to?

    <p>Electrically Operated Valve</p> Signup and view all the answers

    What is ANSI device number 21?

    <p>Distance Relay</p> Signup and view all the answers

    What does ANSI device number 22 refer to?

    <p>Electrically Operated Valve</p> Signup and view all the answers

    What is the definition of ANSI device number 23?

    <p>Temperature Control Device</p> Signup and view all the answers

    What does ANSI device number 24 refer to?

    <p>Volts per Hertz Relay</p> Signup and view all the answers

    What is ANSI device number 25?

    <p>Synchronizing Check Device</p> Signup and view all the answers

    What does ANSI device number 26 refer to?

    <p>Apparatus Thermal Device</p> Signup and view all the answers

    What is the definition of ANSI device number 27?

    <p>Undervoltage Relay</p> Signup and view all the answers

    What does ANSI device number 28 refer to?

    <p>Flame Detector</p> Signup and view all the answers

    What is ANSI device number 29?

    <p>Isolating Contactor or Switch</p> Signup and view all the answers

    What does ANSI device number 30 refer to?

    <p>Annunciator Relay</p> Signup and view all the answers

    What is the definition of ANSI device number 31?

    <p>Separate Excitation</p> Signup and view all the answers

    What does ANSI device number 32 refer to?

    <p>Directional Power Relay</p> Signup and view all the answers

    What is ANSI device number 33?

    <p>Position Switch</p> Signup and view all the answers

    What does ANSI device number 34 refer to?

    <p>Master Sequence Device</p> Signup and view all the answers

    What is the definition of ANSI device number 35?

    <p>Brush operating or slip ring short circuit device</p> Signup and view all the answers

    What does ANSI device number 36 refer to?

    <p>Polarity Voltage Device</p> Signup and view all the answers

    What is ANSI device number 37?

    <p>Undercurrent or Underpower Relay</p> Signup and view all the answers

    What does ANSI device number 38 refer to?

    <p>Bearing Protection Device</p> Signup and view all the answers

    What is the definition of ANSI device number 39?

    <p>Mechanical Conditioning Monitor</p> Signup and view all the answers

    What does ANSI device number 40 refer to?

    <p>Field Relay</p> Signup and view all the answers

    What is ANSI device number 41?

    <p>Field Circuit Breaker</p> Signup and view all the answers

    What does ANSI device number 42 refer to?

    <p>Running Circuit Breaker</p> Signup and view all the answers

    What is the definition of ANSI device number 43?

    <p>Manual Transfer or Selector Device</p> Signup and view all the answers

    What does ANSI device number 44 refer to?

    <p>Unit Sequence Starting Relay</p> Signup and view all the answers

    What is ANSI device number 45?

    <p>DC Over Voltage Relay</p> Signup and view all the answers

    What does ANSI device number 46 refer to?

    <p>Reverse Phase or Phase Balance Current Relay</p> Signup and view all the answers

    What is the definition of ANSI device number 47?

    <p>Phase Sequence or Phase Balance Voltage Relay</p> Signup and view all the answers

    What does ANSI device number 48 refer to?

    <p>Incomplete Sequence Relay</p> Signup and view all the answers

    What is ANSI device number 49?

    <p>Machine or Transformer, Thermal Relay OLR</p> Signup and view all the answers

    What does ANSI device number 50 refer to?

    <p>Instantaneous Overcurrent Relay</p> Signup and view all the answers

    What is the definition of ANSI device number 50G?

    <p>Instantaneous Earth Over Current Relay (neutral CT method)</p> Signup and view all the answers

    What does ANSI device number 50N refer to?

    <p>Instantaneous Earth Over Current Relay (Residual mode)</p> Signup and view all the answers

    What is ANSI device number 50BF?

    <p>Breakure Failure</p> Signup and view all the answers

    What does ANSI device number 51 refer to?

    <p>AC Inverse Time Overcurrent Relay</p> Signup and view all the answers

    What is the definition of ANSI device number 51LR?

    <p>AC Inverse Time Overcurrent (locked rotor) protection relay</p> Signup and view all the answers

    What does ANSI device number 51G refer to?

    <p>AC Inverse Time Earth Overcurrent (Neutral CT Method)</p> Signup and view all the answers

    What is ANSI device number 51N?

    <p>AC Inverse Time Earth Overcurrent Relay (Residual Method)</p> Signup and view all the answers

    What does ANSI device number 52 refer to?

    <p>AC Circuit Breaker</p> Signup and view all the answers

    What is the definition of ANSI device number 52a?

    <p>AC Circuit Breaker (contact position open when breaker open)</p> Signup and view all the answers

    What does ANSI device number 52b refer to?

    <p>AC Circuit Breaker (contact position closed when breaker open)</p> Signup and view all the answers

    What is ANSI device number 53?

    <p>Exciter or DC Generator Relay</p> Signup and view all the answers

    What does ANSI device number 54 refer to?

    <p>Turning Gear Engaging Device</p> Signup and view all the answers

    What is ANSI device number 55?

    <p>Power Factor Relay</p> Signup and view all the answers

    What does ANSI device number 56 refer to?

    <p>Field Application Relay</p> Signup and view all the answers

    What is the definition of ANSI device number 57?

    <p>Short Circuiting or Grounding Device</p> Signup and view all the answers

    What does ANSI device number 58 refer to?

    <p>Rectification Failure Relay</p> Signup and view all the answers

    What is ANSI device number 59?

    <p>not available</p> Signup and view all the answers

    Study Notes

    ANSI Device Numbers Study Notes

    • Device 2: Time delay starting/closing relay
    • Device 3: Checking or interlocking relay for system checks
    • Device 4: Master contactor; principal relay for controlling circuits
    • Device 5: Stopping relay; used to halt operations
    • Device 6: Starting circuit breaker; initiates circuit activation
    • Device 7: Rate of change relay; monitors varying parameters
    • Device 8: Control power disconnecting device; ensures electrical isolation
    • Device 9: Reversing device; alters motor direction
    • Device 10: Unit sequence switch; manages operational order
    • Device 11: Multi-functioning device; serves various roles
    • Device 12: Overspeed device; protects against excessive speeds
    • Device 13: Synchronous speed device; ensures motors run at set speed
    • Device 14: Underspeed device; activates at insufficient speeds
    • Device 15: Speed or frequency matching device; synchronizes dual operations
    • Device 16: Data communications device; facilitates information exchange
    • Device 17: Shunting or discharge switch; redirects current flow
    • Device 18: Accelerating or decelerating device; alters speed gradients
    • Device 19: Starting to running transition contractor; switches from startup to operation
    • Device 20: Electrically operated valve; regulates flow using electricity
    • Device 21: Distance relay; measures electrical distance in systems
    • Device 22: Electrically operated valve; similar function to device 20
    • Device 23: Temperature control device; maintains thermal levels
    • Device 24: Volts per Hertz relay; manages voltage frequency relationships
    • Device 25: Synchronizing check device; ensures alignment of electrical phases
    • Device 26: Apparatus thermal device; monitors heat for safety
    • Device 27: Undervoltage relay; triggers actions at low voltage
    • Device 28: Flame detector; detects fire for safety measures
    • Device 29: Isolating contactor or switch; disconnects elements safely
    • Device 30: Annunciator relay; signals alarm or alerts
    • Device 31: Separate excitation; provides independent voltage to systems
    • Device 32: Directional power relay; identifies fault directions
    • Device 33: Position switch; detects equipment locations
    • Device 34: Master sequence device; oversees operational sequences
    • Device 35: Brush operating or slip ring short circuit device; prevents overload
    • Device 36: Polarity voltage device; checks electrical polarity
    • Device 37: Undercurrent or underpower relay; activates under low current conditions
    • Device 38: Bearing protection device; safeguards bearings from damage
    • Device 39: Mechanical conditioning monitor; assesses mechanical health
    • Device 40: Field relay; regulates field circuits
    • Device 41: Field circuit breaker; protects field circuits
    • Device 42: Running circuit breaker; safeguards current during operations
    • Device 43: Manual transfer or selector device; allows operator control
    • Device 44: Unit sequence starting relay; initiates start sequences
    • Device 45: DC over voltage relay; protects against voltage spikes
    • Device 46: Reverse phase or phase balance current relay; detects phase inconsistencies
    • Device 47: Phase sequence or phase balance voltage relay; maintains phase harmony
    • Device 48: Incomplete sequence relay; signals when operations deviate
    • Device 49: Machine or transformer thermal relay (OLR); guards against overheating
    • Device 50: Instantaneous overcurrent relay; reacts to sudden current spikes
    • Device 50G: Instantaneous earth over current relay (neutral CT method); detects ground faults
    • Device 50N: Instantaneous earth over current relay (residual mode); identifies faults through residual current
    • Device 50BF: Breakure failure; signals malfunctions
    • Device 51: AC inverse time overcurrent relay; responds based on current rise time
    • Device 51LR: AC inverse time overcurrent for locked rotor; protects against stalled conditions
    • Device 51G: AC inverse time earth overcurrent (neutral CT method); reacts to ground faults
    • Device 51N: AC inverse time earth overcurrent relay (residual method); safeguards against ground faults
    • Device 52: AC circuit breaker; interrupts excessive current flows
    • Device 52a: AC circuit breaker with an open contact position when open
    • Device 52b: AC circuit breaker with a closed contact position when open
    • Device 53: Exciter or DC generator relay; manages excitation circuits
    • Device 54: Turning gear engaging device; engages mechanical elements
    • Device 55: Power factor relay; optimizes energy efficiency
    • Device 56: Field application relay; applies field operations
    • Device 57: Short circuiting or grounding device; protects against short circuits
    • Device 58: Rectification failure relay; identifies rectifier issues
    • Device 59: Functions not specified in the provided data.

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    Description

    This quiz focuses on ANSI device numbers, which are essential for understanding relay functions in electrical systems. Each card presents a specific ANSI number along with its definition, enhancing your knowledge of control circuit components. Perfect for students and professionals in electrical engineering.

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