While conducting open circuit test and short circuit test on a transformer, status of low-voltage and high-voltage windings will be such that in ____________(a) OC test – h.v. open, SC test-l.v. short-circuited(b) OC test – l.v. open, SC test-h.v. short-circuited(c) OC test – l.v. open, SC test-l.v. short-circuited(d) OC test – h.v. open, SC test-h.v. short-circuitedThe question was posed to me during a job interview.My doubt stems from Voltage Regulation of Transformer topic in chapter Transformers of Electrical Machines

While conducting open circuit test and short circuit test on a transfo

1.	While conducting open circuit test and short circuit test on a transformer, status of low-voltage and high-voltage windings will be such that in ____________(a) OC test – h.v. open, SC test-l.v. short-circuited(b) OC test – l.v. open, SC test-h.v. short-circuited(c) OC test – l.v. open, SC test-l.v. short-circuited(d) OC test – h.v. open, SC test-h.v. short-circuitedThe question was posed to me during a job interview.My doubt stems from Voltage Regulation of Transformer topic in chapter Transformers of Electrical Machines
Answer» The correct CHOICE is (a) OC test – h.v. OPEN, SC test-l.v. short-circuited The explanation is: In CONDUCTING short CIRCUIT test, l.v. winding is short circuited. In OC test h.v. is open circuited.

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