Answer / sami.det@gmail.com

Electronic welding machine separate earthing provided or not?

We have received supplies of the ordered material. payments against the supplies also released. Where ST paid 4% against form C. Meanwhile it has been observed that 25% of material supplied was defective. Please suggest whether the issuance of C form from our side would be stopped till settlement of liabilities.

0 Answers  

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WHY CAPACITOR IS NOT USED FOR THREE PHASE MOTORS DURING STARTING

1 Answers   Quest,

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high voltage transformer input voltage,current and amps rating..distributed transformer input voltage,current and amps rating...

0 Answers  

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why voltage rating of transformers are in multiples of 1.1?

3 Answers  

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How can two 3 phase transformers of same KVA and Voltage be connected in parallel?

0 Answers   Bernhard Schulte Shipmanagement,

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Sir, Please tell me that how I will calculate the efficiency of rectifier. Because input is ac and output is dc. Is it right to put two unlike signal together.

2 Answers  

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what is different between IP55,IP54 and IP66?

2 Answers   ABB, Global Industries,

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why do we have 230v a.c. as general voltage for domestic supply rather than others?

2 Answers  

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if an insulated power and control cables of a running gas diesel gensets laid direct in an open trench i.e, trench bed is not rcc of a power house in which rain water, spillage water alwas exists and all power control cables remains submerged even when gas gensets of 480 kw each runningin on load. These power &control cables runs from power house to switchgear room through these trenches in which water remains most of the time. pl explain its merit & de-merit

0 Answers  

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We have a 1275KVA existing Transformer in a power plant project. Customer want to get it test & confirm whether it is a Dyn1 Transformer or not. Pleae let me know how to test it.

1 Answers   Allied Group,

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any body know about lighting arrestor. how to determine the height of lighting rod from top of bulding and how many area it cover.

1 Answers  

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Whether earthmat designning is done only for sub station or it can be done for multy residential complexes also? What is the size, type & arrangement of the earth grid to be done?

1 Answers  

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