Why OC and SC test is performed on HV and LV side respectively?
Why would you connect the HV windings? The open circuit test primarily is used to determine the core (magnetic) losses of the transformer, as with no load, you don’t have to worry about copper (winding) losses. For an SC test, the low voltage side is shorted in order to measure the impedance of the transformer.
Why do we use magnetic balance test in transformer?
Magnetic balance test is conducted only on three-phase transformers to check the imbalance in the magnetic circuit. Result of this test indicates uniform distribution of flux insulation. This test is carried out by applying 3 phase 400V AC to one winding, measured induced voltages on other two winding on same side.
What is the aim of conducting OC and SC tests on a 1 phase transformer?
RESULT: Hence OC & SC test on a single phase transformer is performed to determine the regulation and efficiency.
What are the advantages of OC and SC test?
These tests are very convenient as they provide the required information without actually loading the transformer. Further, the power required to carry out these tests is very small as compared with the full-load output of the transformer.
Why SC test is performed on HV side Mcq?
Explanation: It’s a common practice to conduct SC test from HV side, while keeping LV side short circuited. Thus, short circuited current is made to flow from shorted low voltage terminals i.e. LV side. 2.
Why do we perform an open circuit test and short circuit test on the transformer?
Open circuit test and short circuit test are conducted to determine the core loss, copper loss, and equivalent circuit parameters of a transformer. … Hence it is preferred to test transformers without load.