Related Post

Current Transformer (C.T) and Theory and operation of current transformerTesting of current transformer

Index

SymbolsTransformerRelayPower-SystemBasic-electricalACSR-ConductorCircuit-BreakerInterview-questions-of-Basic-ElectricityInterview-questions-of-transformerInsulatorCurrent-TransformerMCQMCQ-powersystemThermal-power-stationInterview-questions-of-Power-SystemPower-ElectronicsInterview-questions-of-Underground-CableInterview-questions-of-IlluminationIlluminationMCQ-of-ElectronicsMCQ-of-Basic-ElectricalMCQ-of-Transformers MCQ-of-D.C-motor MCQ-of-D.C-generatorsMCQ-Control-SystemMCQ-Measurementsmcq-of-Generation-power-systemMCQ-of-Induction-MotorMCQ-of-Transmission-DistributionMCQ-of-Electrical-MachinesMCQ-of-Alternator-and-Synchronous-MotorsMCQ-Electric-Power

Testing of current transformer


≪ Previous Next ≫

The following testing are done at the current transformer .Which is given below:-

i)Type Testes:-
  1. Verification of terminal marking and polarity.
  2. High voltage power frequency test on primary windings.
  3. Over voltage inter-turn test.
  4. Determination of error according to requirements of appropriate accuracy class.
  5. Short time current test.
  6. Temperature rise test.
  7. Impulse voltage test for current transformer for service in electrically exposed installations.

Special type testing may be done on current transformer .

  1. High voltage power frequency wet withstand voltage test on outdoor current transformer.
  2. Partial discharge test.
(ii) Routine Tests:-
  1. Verification of terminal markings and polarity.
  2. High voltage power frequency test on primary windings.
  3. High voltage power frequency test on secondary windings.
  4. Over voltage inter turn test.
  5. Determination of error according to the requirements of appropriate accuracy class.
  6. Accuracy test.


≪ Previous Next ≫


Related topics :


Recent Post

Multiple Choice Question (MCQ) of Materials page-6:
51. The permeability and permittivity of a medium are
A) independent of each other
B) related by the atomic number
C) related by the Boltzmann’s constant
D) related by the velocity of electromagnetic waves.

Read more...

Multiple Choice Question (MCQ) of Materials page-5:
41. Bakelite is
A) highly inflammable
B) low resistance conductor
C) a semi-conductor
D) uncombustible.

Read more...

Multiple Choice Question (MCQ) of Materials page-4:
31. Which of the following pairs is commonly used in thermocouples?
A) Copper-constant
B) Aluminium-tin
C) Iron-steel
D) Silver-German silver.

Read more...