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