Answer / r k choudhary

Ring main unit is a looping of all equipment if power
supply from end fail then power supply from other end fed
in equipment. there will be no hindrance in our work.

Answer / david vk2cz

ATS is an automatic transfer switch, meaning it will accept power from 2 sources, and automatically switch to the source with available power. This can be dangerous in maintenance activities, unless it is switch to manual. Mostly used in datacentres, underground train stations and underground corridor lighting

Why induction motor is widely used in industry

0 Answers   BARC, Honda,

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which is best ac or dc

3 Answers  

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Why grounding is generally done in supply end?

1 Answers   ISRO, OFBL,

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What is block diagram?

0 Answers  

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how capacitor control the power factor/

2 Answers   ABB, Apollo,

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Why is it that bus reactors are not accompanied by a neutral grounding reactor whereas a line shunt reactor is? PGCIL does so.

2 Answers  

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What are the test involved in DG auto synchronizing panel before in manufacturing place before dispatch.

2 Answers   L&T, TCS,

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What is the Diff. btw Fire Alarm System & VESDA System??????

1 Answers   Emerson,

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why should we connect the no load components in a equivalent circuit of transformer in parallel?why cant it be in series.

3 Answers  

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calculate external resistance values to add to the rotor of a slip ring induction motor. STATOR- 415 V, 3 phase delta, 1100 A, 50 Hz, 1490 rpm, pf 0,86 ROTOR - 660 V, 590 A, 50 Hz. STATOR current at each steps STEP1-600A,STEP2- 800A,STEP3-1000A,STEP4-1100A.

0 Answers  

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in india why 50 hz and 220 volt taken as standard rating for equipments whereas in US 100hz and 110v is consided as standard rating.is this method save power.

5 Answers   Wipro,

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how to measure winding resistance of single phase motor?

1 Answers   Adani, Dodsal,

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