OPGWSulfurHexafluoride(SF6)GroundSwitchConnectsequipment toground forsafety duringmaintenance. GroundGridDisconnectSwitch(DS)Provides visibleisolation ofequipment butdoes notinterrupt loadcurrent. TouchVoltageSurgeArresterProtectsequipment fromovervoltagesurges causedby lightning orswitching. CTPolarityCostPerformanceIndex (CPI)RemoteTerminalUnit(RTU)BusworkConductivebars or tubesthat distributepower withina substation.Motor‑OperatedDisconnectA disconnectswitchoperatedremotely by anelectric motor. GroundMatCCVTControlCableBusDifferentialLine‑to‑LineFaultStrainBusBusworkdesigned tohandlemechanicaltension fromconductors. BrownfieldStationCTGreenfieldStationRingBusA busconfigurationwhere breakersform a closedloop, improvingreliability.RegulatorTieBreakerTransferBusAn auxiliary busused to transfercircuits duringmaintenance orbreakeroutages.PowerTransformerTransfers electricalenergy betweencircuits at differentvoltage levelsusingelectromagneticinduction.Dead‑EndStructureA structure thatanchorsconductors atthe end of atransmissionline. StationServiceTransformerCTSaturationSCADADICMBreakerFailureSchemeProtection logicthat operatesbackup trippingif a breaker failsto clear a fault. Breaker‑and‑a‑HalfA substationlayout usingthree breakersto protect twocircuits.FaultJumpersFlexibleconductors thatconnect rigidequipment andallowmovement. RadialFeederRigidBusFixedaluminum orcopper bussupported byinsulators. ADSSFiberExpansionConnectionLine‑to‑GroundFaultGroundRodStepVoltageCircuitBreakerInterruptsfault andload currentto protect thesystem. VT /PTBusinessProtocolIdentificationAs‑BuiltDrawingWave/LineTrapStepvoltageTouchvoltageControlHouseRemoteEndSubstationSchedulePerformanceIndex (SPI)OPGWSulfurHexafluoride(SF6)GroundSwitchConnectsequipment toground forsafety duringmaintenance. GroundGridDisconnectSwitch(DS)Provides visibleisolation ofequipment butdoes notinterrupt loadcurrent. TouchVoltageSurgeArresterProtectsequipment fromovervoltagesurges causedby lightning orswitching. CTPolarityCostPerformanceIndex (CPI)RemoteTerminalUnit(RTU)BusworkConductivebars or tubesthat distributepower withina substation.Motor‑OperatedDisconnectA disconnectswitchoperatedremotely by anelectric motor. GroundMatCCVTControlCableBusDifferentialLine‑to‑LineFaultStrainBusBusworkdesigned tohandlemechanicaltension fromconductors. BrownfieldStationCTGreenfieldStationRingBusA busconfigurationwhere breakersform a closedloop, improvingreliability.RegulatorTieBreakerTransferBusAn auxiliary busused to transfercircuits duringmaintenance orbreakeroutages.PowerTransformerTransfers electricalenergy betweencircuits at differentvoltage levelsusingelectromagneticinduction.Dead‑EndStructureA structure thatanchorsconductors atthe end of atransmissionline. StationServiceTransformerCTSaturationSCADADICMBreakerFailureSchemeProtection logicthat operatesbackup trippingif a breaker failsto clear a fault. Breaker‑and‑a‑HalfA substationlayout usingthree breakersto protect twocircuits.FaultJumpersFlexibleconductors thatconnect rigidequipment andallowmovement. RadialFeederRigidBusFixedaluminum orcopper bussupported byinsulators. ADSSFiberExpansionConnectionLine‑to‑GroundFaultGroundRodStepVoltageCircuitBreakerInterruptsfault andload currentto protect thesystem. VT /PTBusinessProtocolIdentificationAs‑BuiltDrawingWave/LineTrapStepvoltageTouchvoltageControlHouseRemoteEndSubstationSchedulePerformanceIndex (SPI)

Substation Bingo - Call List

(Print) Use this randomly generated list as your call list when playing the game. There is no need to say the BINGO column name. Place some kind of mark (like an X, a checkmark, a dot, tally mark, etc) on each cell as you announce it, to keep track. You can also cut out each item, place them in a bag and pull words from the bag.


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  1. OPGW
  2. Sulfur Hexafluoride (SF6)
  3. Connects equipment to ground for safety during maintenance.
    Ground Switch
  4. Ground Grid
  5. Provides visible isolation of equipment but does not interrupt load current.
    Disconnect Switch (DS)
  6. Touch Voltage
  7. Protects equipment from overvoltage surges caused by lightning or switching.
    Surge Arrester
  8. CT Polarity
  9. Cost Performance Index (CPI)
  10. Remote Terminal Unit(RTU)
  11. Conductive bars or tubes that distribute power within a substation.
    Buswork
  12. A disconnect switch operated remotely by an electric motor.
    Motor‑Operated Disconnect
  13. Ground Mat
  14. CCVT
  15. Control Cable
  16. Bus Differential
  17. Line‑to‑Line Fault
  18. Buswork designed to handle mechanical tension from conductors.
    Strain Bus
  19. Brownfield Station
  20. CT
  21. Greenfield Station
  22. A bus configuration where breakers form a closed loop, improving reliability.
    Ring Bus
  23. Regulator
  24. Tie Breaker
  25. An auxiliary bus used to transfer circuits during maintenance or breaker outages.
    Transfer Bus

  27. Transfers electrical energy between circuits at different voltage levels using electromagnetic induction.
    Power Transformer
  28. A structure that anchors conductors at the end of a transmission line.
    Dead‑End Structure
  29. Station Service Transformer
  30. CT Saturation
  31. SCADA
  32. DICM
  33. Protection logic that operates backup tripping if a breaker fails to clear a fault.
    Breaker Failure Scheme
  34. A substation layout using three breakers to protect two circuits.
    Breaker‑and‑a‑Half
  35. Fault
  36. Flexible conductors that connect rigid equipment and allow movement.
    Jumpers
  37. Radial Feeder
  38. Fixed aluminum or copper bus supported by insulators.
    Rigid Bus
  39. ADSS Fiber

  41. Expansion Connection
  42. Line‑to‑Ground Fault
  43. Ground Rod
  44. Step Voltage
  45. Interrupts fault and load current to protect the system.
    Circuit Breaker
  46. VT / PT
  47. Business Protocol Identification
  48. As‑Built Drawing
  49. Wave/Line Trap
  50. Step voltage
  51. Touch voltage
  52. Control House
  53. Remote End Substation
  54. Schedule Performance Index (SPI)