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Why are oc and sc tests preferred when compared to sumpners test?
Wiki User
∙ 9y ago
OC and SC tests are used for predetermining the efficiency and % voltage regulation. It is more efficient test for a transformer than sumpner's test for 2 reasons.
1. two identical Transformers are readily not available
2. two separate power supplies are required for the sumpner's test, whereas OC and SC are simple and best
Wiki User
∙ 9y ago
Wiki User
∙ 11y agoBoth losses can be found simultaneously...
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Why should you use sumpners test on transformer?
sumpners test is performed to find core losses and copper losses.here we can find effieciency and regulation by actually simulating the loading conditions.hence the results obtained by this method are more accurate than oc and sc test where loading conditions are absent.we can perform heat run test which is an advantage of sumpners test as both losses occur simultaneously
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Normally as per IS 8623 There are 3 Test conducted in Type Testing Lab i.e,CPRI Bhopal and Bangalore,ERDA in vadodara. That are short circuit withstand test,Ingress protection Test and Heat Run test or Temperature rise test. regards Ramesh 09323586413
Procedure for sumpners test?
Procedure for sumpners test is the single phase transformer. This is a back to back test.
Why should you use sumpners test on transformer?
sumpners test is performed to find core losses and copper losses.here we can find effieciency and regulation by actually simulating the loading conditions.hence the results obtained by this method are more accurate than oc and sc test where loading conditions are absent.we can perform heat run test which is an advantage of sumpners test as both losses occur simultaneously
Why sumpners test is called heatrun test?
The temperature rise is not considered in OC & SC tests of transformers.. But in Sumpner's test, temp. rise is considered.. Hence is called "Heat-run test".. Also, the transformers draw only the power req. to supply core & Cu. losses of transformer..
What do you mean by sumpners test?
Its a test conducted on two identical 1- phase transformers to determine the efficiency at different loads (without actually connecting any load).
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