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.

1. A feeder supplied from a single source with no alternate path.
   Radial Feeder
2. Flexible conductors that connect rigid equipment and allow movement.
   Jumpers
3. Happens when two phase conductors touch each other. These faults create high current levels and can cause significant equipment stress.
   Line‑to‑Line Fault
4. Buswork designed to handle mechanical tension from conductors.
   Strain Bus
5. Bus connection that allows thermal expansion and contraction.
   Expansion Connection
6. A plant accounting code that identifies a capital project.
   Business Protocol Identification
7. A project that is built within, attached to, or replaces part of an existing, operational substation.
   Brownfield Station
8. A device that collects data from substation equipment and sends it to a control center, and can also receive commands to control that equipment remotely.
   Remote Terminal Unit(RTU)
9. A structure that anchors conductors at the end of a transmission line.
   Dead‑End Structure
10. Low‑voltage cable used for protection, control, and indication circuits.
    Control Cable
11. Buried conductors forming a low‑resistance grounding system.
    Ground Grid
12. Protects equipment from overvoltage surges caused by lightning or switching.
    Surge Arrester
13. Occurs when one phase conductor contacts ground or grounded equipment. This is the most common type of substation fault and usually produces a large ground current.
    Line‑to‑Ground Fault
14. A device used to automatically maintain the electrical voltage within a desired range by adjusting voltage levels as system load changes.
    Regulator
15. The substation at the opposite end of a transmission line.
    Remote End Substation
16. Voltage difference between a person’s feet during a ground fault.
    Step Voltage
17. Correct orientation of current transformer terminals for relay accuracy.
    CT Polarity
18. All‑Dielectric Self‑Supporting fiber cable used for communications only.
    ADSS Fiber
19. A bus configuration where breakers form a closed loop, improving reliability.
    Ring Bus
20. Voltage or Potential Transformer that steps down voltage for measurement.
    VT / PT
21. A Breaker connecting two buses or feeders.
    Tie Breaker
22. A project performance metric that compares the value of work completed to the value of work that was planned to be completed by a given date.
    Schedule Performance Index (SPI)
23. Protection logic that operates backup tripping if a breaker fails to clear a fault.
    Breaker Failure Scheme
24. A disconnect switch operated remotely by an electric motor.
    Motor‑Operated Disconnect
25. A gas that insulates between the active and non-active components of a substation and can drastically reduce the clearance distances.
    Sulfur Hexafluoride (SF6)
26. Connects equipment to ground for safety during maintenance.
    Ground Switch
27. A substation layout using three breakers to protect two circuits.
    Breaker‑and‑a‑Half
28. Surface grounding mesh to reduce step and touch voltage.
    Ground Mat
29. Provides visible isolation of equipment but does not interrupt load current.
    Disconnect Switch (DS)
30. Protection scheme that detects faults within the bus zone.
    Bus Differential
31. Condition where a current transformer cannot accurately reproduce current.
    CT Saturation
32. Transfers electrical energy between circuits at different voltage levels using electromagnetic induction.
    Power Transformer
33. Coupling Capacitor Voltage Transformer used for voltage measurement and communications.
    CCVT
34. Interrupts fault and load current to protect the system.
    Circuit Breaker
35. Building that houses protection, control, and communication equipment.
    Control House
36. An abnormal condition where electrical current flows along an unintended path, usually due to insulation failure, equipment damage, or contact with ground or another phase.
    Fault
37. Supervisory Control and Data Acquisition system for monitoring and control.
    SCADA
38. A standard modular control building that contain protective relays and control equipment used to operate the substation.
    DICM
39. Fixed aluminum or copper bus supported by insulators.
    Rigid Bus
40. An auxiliary bus used to transfer circuits during maintenance or breaker outages.
    Transfer Bus
41. A new substation project built on undeveloped land, where no existing electrical infrastructure is present.
    Greenfield Station
42. Vertical electrode driven into earth to improve grounding.
    Ground Rod
43. This device steps down the current to a lower level current (less than 5 amps) suitable for a relay or meter input.
    CT
44. Final drawing reflecting actual installed conditions.
    As‑Built Drawing
45. A project performance metric used to measure cost efficiency — how well a project is performing compared to its budget.
    Cost Performance Index (CPI)
46. Voltage between a grounded object and the ground surface a person is standing on.
    Touch Voltage
47. Conductive bars or tubes that distribute power within a substation.
    Buswork
48. Optical Ground Wire providing lightning protection and fiber‑optic communication.
    OPGW
49. a device installed in a high‑voltage substation that blocks high‑frequency communication signals from entering substation equipment while allowing normal power‑frequency current to pass freely.
    Wave/Line Trap
50. Supplies low‑voltage power to substation auxiliary loads.
    Station Service Transformer