The D.C. spark test is applicable to single conductor cable & assemblies of insulated single conductor cables without insulation shield,metallic sheath or metalic armor?

0 Answers  

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MICOM P122 OC/EF RELAY HAVE HARMONIC RESTRAIN OR NOT?

1 Answers  

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why we use 110vac in overhead crains? why not 220v, 24v

3 Answers   SOFT,

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in pf lagging means current decrease by increasing voltage is correct or not ? reason ?

3 Answers  

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HOW DO WE COLLECT THE SOLAR ENERGY AND DESCRIBE THE METHODS TO CONVERT THE SOLAR ENERGY INTO ELECTRICAL ENERGY?

1 Answers  

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WHAT IS THE USE OF ANTIPUMPING CONTACTOR IN HT BREAKERS

8 Answers  

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how can we test the vector group of transformer

1 Answers  

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why one pin of plug pin is longer than other two? In some mobile chargers one pin is made not conducting .Why?

4 Answers  

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What will happen if we introduce negative feedback to a control system that uses a positive feedback?

0 Answers   GE,

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on 22.03.2015 at 17:15hrs Y phase 66kV class Power Trf-2 Current transformer has flashed over and oil came out. The failed CT has been replaced on 24.03.2015 at 13:15hrs and the Trf has been charged in presence of RT Hassan after conducting the pre-commissioning tests. On the same day at 17:00hrs the commissioned CT has again flashed over and immediately the Trf  has been isolated from power supply. It is confirmed the secondary is not opened and checked the earth integrity and is found ok. Here what would be the reason for the CT failure? 

2 Answers  

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how do you select the ct/pt rating in substation

1 Answers   Apollo, Shreem Electric Ltd, Tata Motors,

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How is magnetic leakage reduced?

0 Answers  

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