Answer / ahmad yousuf

need answers from T/F specialists..!!

Answer / anand yadav

The transformer is connected to a capacitor bank or the PF
meter connections are wrong.It is not possible for a
inductive load to show leading PF.

Answer / rajesh verma

Dear
It is not possible. As the transformer is a inductive
device it can only lead to Lagging PF although it is idle
but there was definitely Lag PF the one possibility is that
the transformer is feeding to capacitor panel and because
it is off load so the resulting PF is Leading second thing
can happened that PF relay not working in auto made and
somebody has connected direct capacitor without calculating
the required KVAR to maintain transformer off load PF

Answer / doss

if its a new transformer please check the test report done by site acceptence tan delta test .its should be the capacitance high ,and dessipation factor also need to check ...

if the result is high means need to check the winding...if the tan@ reading is less than 0.05 the transformer is good condition..so check external..

In our plant we have installed new MCC with ELR and CBCT which is detecting some leakage current in the system but it leading to some confusion when to check that in which feeder which is drawing current we put off the whole panel itself but still CBCT detecting some leakage current so can anybody ans me , where i am going wrong or how to detect whether its actual leakage or CBCT malfunctioning.

0 Answers   Saint Gobain,

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short circuit test of transformer gives what?

9 Answers   NTPC,

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I want to ask a question which i faced during testing of Capacitive Voltage Transformer in AIS. We have measured the C1 , C2 individually , but when we start to measure the total C1+C2 , the testing equipment shuts down and says low loading. Kindly is it possible to find the total capacitance by using measuring device. kindly briefly explain the procedure.

0 Answers   AIS,

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What is the Surge suppresor? Why using in a UDB's and How it works?

0 Answers  

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1.what is meaing of ups,and used in softwares and sud stations,and main partes in ups. 2.main partes of the Disel Genarator. 3.main partes of the chiller and safty equipments.

2 Answers  

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is any body explain me why return current in three phase power system is less then in a red, yellow, blue phases??? as we know Ir+Iy+Ib=In then why nutral wire has less then phase current????

2 Answers   Bhel, DRIEMS,

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what is the harmonics.

3 Answers   DLF,

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HOW DOES THE ELECTRONIC ENERGY METER WORKS?

0 Answers   Core Solutions,

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How to calculate capacitor bank size at a load 800kVA.

0 Answers  

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Sir, I need a power supply at 380V. The supply I get in three phase is rated 415V. The total supply I have from the supply company is 70KW. Kindly inform if it is better to use a voltage stabiliser for this purpose or a transformer

3 Answers  

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slipring induction motor starting time Lrs operating why lrs starting time lrs outer body didn't get shock

0 Answers   Ramco,

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Why positive terminal of DC 48V was earthed?

1 Answers  

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