Basic 2

  1. True/False

    Feeder does not have customer load.
    True
  2. True/False

    Minimize circulating current so that is does not cause a relay action.
    True
  3. True/False

    The step regulator has a bandwidth range of ±3/4 - 2 volts
    True
  4. When the voltage is being raised, the regulator is said to be              
    Boosting
  5. When the voltage is being lowered, the regulator is said to
    be              
    Bucking
  6. An                      is a transformer that has only one winding
    autotransformer
  7. True/False

    The line-drop compensator calculates the necessary change in the voltage by simulating the voltage drop in the feeder between the regulator and the load center.
    True
  8. True/False

    The basic bandwidth used by the DWP is 2 volts
    True
  9. True/False

    Feeder voltage regulators are connected open-delta
    True
  10. True/False

    Step type regulators use a mechanism with 9 contacts. These 9
    contacts include 8 steps and a neutral
    True
  11.                  changes the polarity of the connection between the primary and the secondary
    reversing switch
  12. On Induction Regulators, the movable coils are called....
    rotors
  13. True/False

    The stationary coil is the stator. The stator is also called the
    secondary or output winding. The stator is connected in series with
    the circuit to be regulated.
    True
  14. With Induction Regulators, when the rotor is perpendicular to the stator, it cannot induce any                   in the stator
    voltage
  15. How many steps on a regulator?
    33; 16 up, 16 down, and neutral
  16. Regulators may hunt due to faulty                      .
    • Contact making voltmeter
    • Time delay
    • Bandwidth setting
  17. True/False

    Feeder voltage regulators use a line-drop compensator to simulate the voltage drop to the load center
    True
  18. True/False

    Voltage regulators need to be blocked on neutral when switching is done on a feeder position
    True
  19. The two types of feeder voltage regulators used by the Department are                   and                    
    Induction and Step
  20. True/False

    Induction regulators use a rotor and stator to adjust the voltage
    True
  21. True/False

    The regulator should show between 1000 and 3000
    counter operations for a normal month.
    True
  22. True/False

    On the basis of the information from the line-drop compensator, the contact-making voltmeter (CMV or CMVM) will raise or lower the voltage, provided that time and bandwidth requirements are met
    True
  23. Electric stoves, irons, heaters, and toasters are examples of 
                         or resistance loads.
    heating
  24. Vacuum cleaners, washing machines, fans refrigerators, and power tools are examples of                           .
    motor loads
  25. What are some examples of electronic loads.
    Television, computers, and radios
  26. Another name for lighting load is                      
    illumination load
  27. What are the two major benefits to the Power System in maintaining a regulated voltage supply to our customers.
    Customer satisfaction, efficiency
  28. True/False

    The load center is the point on a feeder where the circuit branches out into various primary circuits.
    True
  29.                           is the decrease in voltage on an electric circuit between the source and the load.
    Voltage drop
  30. When an autotransformer is used to                 the voltage, part of the single winding acts as the primary, and the entire winding acts as the secondary.
    step up
  31. When an autotransformer is used to                 the voltage, the entire winding acts as the primary, part of the winding acts as the secondary.
    step down
  32. What are the two types of line-drop compensators?
    Balance Beam, Electronic
  33. The basic bandwidth set by DWP is                    
    2 volts
  34. True/False

    A hot regulator room will decrease the current carrying capacity of the regulator.
    True
  35. True/False

    Step type regulator are autotransformers.
    True
  36. In reference to Voltage Regulators, each step causes a change of                         .
    60 volts (1.25% of 4.8kv)
  37. In reference to Voltage Regulators; two finger contacts and preventative autotransformers create a bridging position when each of the fingers is on different contact, resulting in 32 steps - 16 Boost, 16 Buck. Each step has a voltage change of                
    30 volts (.625% of 4.8kv)
  38. True/False

    When a rotor is                           to the sator, it cannot induce any voltage in the stator
    perpendicular
  39. The maximum voltage change occurs when the rotor is              
    to the sator.

    parallel
  40. What are the two main reasons Voltage Regulators may need to blocked on neutral.
    When making/breaking feeder parallel, voltage may not match possibly causing an arc.

    When making parallel with the TBT, if not blocked on neutral, circulating current can occur possibly causing the Feeder CB, or TBT to relay
  41. Most regulators are                        meaning the power supply is also the power supply for the regulator voltmeter
    self-contained
  42. True/False

    In order to safely switch a feeder, the regulators must be on neutral
    True
  43. True/False

    If a regulator is off neutral and it is impossible to move it to the neutral position, de-energize the feeder before switching out the regulator
    True
  44. True/False

    Short circuit current is weakest in a regulator that is one step off neutral
    False
  45. True/False

    Cutting a regulator flat allows the feeder to be supplied through the feeder position un-regulated
    True
  46. Primary OK TO - put slash as soon as reissued
    Each Slash is for each primary OK TO on the same equipment
  47. Authorized person can work on equipment up to                 alone
    300V
  48. OK TO Work Hot on 34.5kV line
    LD generates tag number
  49. Used to limit fault current to regulator
    Reactors
  50. 69kV and above lines/cables – ground switches must be
    closed before                is issued
    clearance
  51. True/False

    Voltage is regulated on a feeder according to the load center
    True
  52. only has reversing switch, no rotor or
    stator
    Step Type Regulator
  53. True/Fasle

    Induction regulators have 2 coils
    True
  54. True/Fasle

    Step type regulators have 1 coil – auto transformer
    True
  55. Limit switch on regulator controls                 
    % regulation
  56. used to sense load center
    voltage; line drop compensator
    CMV – contact making voltmeter
  57. True/Fasle

    At 7.5kV and below – equipment can be worked on without
    grounding if difficult or dangerous
    True
  58. Test for voltage before                  
    grounding
  59. 230kV Bus is grounded after             is issued
    clearance
  60. True/False

    Clearance must be transferred to a second authorized person,
    then grounds transferred, then clear off the first authorized
    person
    True
  61. ETB does not handle hazardous waste, who handles it
    LD and/or ACO
  62. may cause total current to increase and
    relays to trip
    Circulating current
  63. Transmission lines
    ground before clearance is issued
Author
Benjammincash
ID
353987
Card Set
Basic 2
Description
Basic 2
Updated