Answer Posted / x man

AC DRIVE IS THE BEST OPTION because when compared to DC
motor AC motor are more prefered due their capital cost and
running cost.
they are low maintenence
easy and muliple speed control.
low ripple distortion.

1.WHAT IS A SMART CAPABLE DB ( DISTRIBUTION BOX) ? 2. HOW TO DECIDE THE TYPE OF DB TO BE USED ( RECESSED/ PLUG TYPE/ SMART ETC ETC? 3. WHAT IS MILLENEUM BUS BAR USED IN DB? 4.DIFFERENTIATE MCCB AND MCB.

1855

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what is the mechanical safety of DG ?

2205

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There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.

2111

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5.WHICH TYPE WELDING PROCESSES USES NON CONSUMABLE ELECTRODE.........

2096

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Is it possible to measure the voltage of a battery from a single terminal?

1747

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2. A current i=(10+10 sin t)amperes is passed through MI type ammeter. its reading will be.........

2325

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how many joints are allowed in underground HT cable of 1 KM

1883

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8. A DYNAMOMETER TYPE WATTMETER RESPONDS TO THE.......

9301

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IN MY SYSTEM THERE IS ONLY OVER CURRENT EARTH FAULT RELAY IS AVAILABLE. FOR THE UNBALANCE SENSING IS THERE ANY RELAY IS AVAILABLE? THE SAME CTs WHICH ARE USED FOR THE OVER CURRENT EARTH FAULT RELAY CAN USE FOR UNBALANCE ALSO?

4148

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Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

1979

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why and where we use early make & late break contacts in protection?

8332

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how we decide the require size is this for a known current at fuu load?

1967

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what should be the no load current for 3 phase ac motors ranging from 5 kw to 1000kw?

1802

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How to calculate the electrical load for a standard telecom BTS shelter and choose the DG set capacity for the same load?

3201

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what is the differebt between ac and dc fuse?

2345

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