directional over current relay when acted & how it works

3 Answers   NCC, ThyssenKrupp,

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electricity requires a medium to flow and it cannot flow through air. so how does lightning come to earth through air without any medium?

3 Answers  

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what is name of transformer oil ?

58 Answers   L&T, MPSEB, OPTCL, Practical Viva Questions, Servo, TATA, XLPE, ZGL,

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technically, what is the reason behind starting the motor star the delta connection .. and what other ways to do this rather than using " star-delta transformer"

0 Answers   Wipro,

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why we condut tan delta test i want brief explain?

3 Answers  

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Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices

0 Answers   Mayur,

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We have got the HT connection of 1000 KVA in which we have installed a seprate APFC panel at the PCC end & seprate KWH meter is installed. My question is that does the KWH reading shown in the meter is a part of the Consumption ???? ( approx 500 units is shown)

1 Answers  

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Why transformer neutral earthing? What is advantages?

3 Answers  

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what is main purpose of ignator in halogen lamps.how to identify the failer of ignator in circuit

0 Answers  

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how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

0 Answers  

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lead acid battery electrolity?

2 Answers  

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What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?

0 Answers  

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