Special Purpose Controllers MCQ

Test your knowledge with important Special Purpose Controllers MCQ and their applications. These MCQs are beneficial for competitive exams too. Explore 30 + more Special Purpose Controllers MCQs at Bissoy

• TCBR can allow safe high-speed reclosing of lines near a power plant.
  ক

  True

  খ

  False
• A three-phase TCBR is ________ connected.
  ক

  wye or delta

  খ

  always wye

  গ

  always delta

  ঘ

  always zig-zag
• TCBR is NOT employed in three phase power system.
  ক

  True

  খ

  False
• The best location for a TCBR is ________
  ক

  near a generator

  খ

  away from the generator

  গ

  in the middle of transmission lines

  ঘ

  near transmission lines
• TCBR stabilizes power system transients and ________
  ক

  super-synchronous oscillations

  খ

  synchronous oscillations

  গ

  asynchronous oscillations

  ঘ

  sub-synchronous oscillations
• How does TCBR prevent transient instability during the first swing cycle in power system?
  ক

  By immediately taking the power caused by power swing, away from the generator

  খ

  Without affecting the power caused by power swing

  গ

  By allowing the power caused by power swing to reach generator

  ঘ

  By marginally taking the power caused by power swing, away from the generator
• TCBR ________ damping to prevent dynamic instability.
  ক

  cannot enhance

  খ

  can enhance

  গ

  is never designed for

  ঘ

  allows ineffective
• TCBR can damp ________
  ক

  super-synchronous resonance

  খ

  synchronous resonance

  গ

  asynchronous resonance

  ঘ

  sub-synchronous resonance
• TCBR can efficiently aid to ________ a turbine-generator.
  ক

  synchronize

  খ

  sub-synchronize

  গ

  super-synchronize

  ঘ

  de-synchronize
• TCBR is referred to as ________ Brake.
  ক

  Static

  খ

  Synchronous

  গ

  Dynamic

  ঘ

  Non-Synchronous
• TCBR incorporates ________ thyristor-switched resistor.
  ক

  series-connected

  খ

  either series-connected or shunt-connected

  গ

  neither series-connected nor shunt-connected

  ঘ

  shunt-connected
• In TCBR, ________ firing control is used to damp low-frequency oscillations selectively.
  ক

  cycle by cycle

  খ

  continuous

  গ

  half-cycle by half-cycle

  ঘ

  non-cyclic
• TCBR exhibits ________ switching of the resistor.
  ক

  cycle by cycle

  খ

  continuous

  গ

  non-cyclic

  ঘ

  asymmetric
• TCBR incorporates ________
  ক

  linear resistor

  খ

  non- linear resistor

  গ

  either linear resistor or non-linear resistor

  ঘ

  neither linear resistor nor non-linear resistor
• TCBR is the abbreviation of ________
  ক

  Thyristor-Controlled Braking Resistor

  খ

  Thyristor-Controlled Braking Regulator

  গ

  Thyristor-Controlled Braking Receiver

  ঘ

  Thyristor-Commuted Braking Resistor
• The operation of the NGH-SSR Damping Scheme is dependent on specific signal from the power generator.
  ক

  True

  খ

  False
• In NGH-SSR Damping Scheme the thyristor switch is designed to be controlled when zero crossing of the capacitor voltage is detected.
  ক

  True

  খ

  False
• In case of likelihood of presence of steady-state resonance problem, the thyristors in NGH-SSR Damping Scheme DO NOT conduct at all during steady state.
  ক

  True

  খ

  False
• In case of transient torque problem, the thyristors in NGH-SSR Damping Scheme DO NOT conduct at all during steady state.
  ক

  True

  খ

  False
• In NGH-SSR Damping Scheme the series resistor has to be designed to limit the rate of current rise and peak capacitor discharge current.
  ক

  True

  খ

  False
• The proposition behind NGH-SSR Damping Scheme is that the unbalanced charge in the series capacitor interchanges with the system inductance to produce oscillations.
  ক

  True

  খ

  False
• The best impedance in NGH-SSR Damping Scheme is ________
  ক

  a combination of a small-value resistor and a small-value resistor

  খ

  a combination of a large-value resistor and a large-value resistor

  গ

  a combination of a large-value resistor and a small-value resistor

  ঘ

  a combination of a small-value resistor and a large-value resistor
• NGH-SSR Damping Scheme for one phase employs ________ with an ac thyristor switch connected across the capacitor.
  ক

  an inductance in series

  খ

  a resistance in series

  গ

  an impedance in shunt

  ঘ

  an impedance in series
• NGH-SSR Damping Scheme is basically NOT a passive scheme.
  ক

  True

  খ

  False
• NGH-SSR Damping Scheme helps to reduce capacitor cost.
  ক

  True

  খ

  False
• NGH-SSR Damping Scheme suppresses the ________ of the series capacitor.
  ক

  ac offset

  খ

  neither dc offset nor ac offset

  গ

  either dc offset or ac offset

  ঘ

  dc offset
• NGH-SSR Damping Scheme is employed to minimize shaft twisting.
  ক

  True

  খ

  False
• NGH-SSR Damping Scheme is ________ employed for series compensation.
  ক

  detrimental to series capacitors

  খ

  not of much use to series capacitors

  গ

  a boon to series capacitors

  ঘ

  a boon to series resistors
• NGH-SSR Damping Scheme is characterized by a ________ capacitor impedance control scheme.
  ক

  high power series

  খ

  low power series

  গ

  low power shunt

  ঘ

  high power shunt
• NGH-SSR stands for ________
  ক

  Narain G. Hingorani-SSR

  খ

  Negative gain high impedance-SSR

  গ

  Normal gain high impedance-SSR

  ঘ

  Nominal gain high impedance-SSR