Answer Posted / sunit haldar

In case of motorized MCCB rotary handle is operated by use 
of motor which is used as an operating mechanism for spring charging purpose.
    

either water sensor or flow meter,how we observe the water level, f any other equipment are in market ?

1934

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what is rocking arrangement in arc heating

2184

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What is an Air COmpressor

2306

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1)how to reduce the value of tan delta of trasformer and CB,bushing,CT&PT,CVT ? 2)how to reduce the resistance of CB contact and its operating time? 3)plz.....send me the project report on conditioning and monitoring of substation equipment on my email id (gusaiyogendra03@gmail.com)

2369

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is this the formula of building wiring to get the main breaker.Watts/volts*.8%+higher motor*(25%)=ampere. yes or no or send the correct formula for building wiring.

1761

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how do i commission a distribution transformer knowing all its ratings and transformation ratios?d

4665

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RESPECCTED SIR/MADAM- I AM PRERING FOR SECTION ENGINEER (ELECTRICAL) RRB CHANDIGARH PLEASE SEND ME SOME PREVIOUS YEAR QUESTION PAPER OR MODEL PAPER.MY EXAM IS ON (30- NOVEMBER 2008).I AM VERY THANKFUL TO YOU. FROM- HARENDRA SINGH YADAV

2148

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who can measure the size of power cable?

2205

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can the measured percentage error during calibration of single phase energy meter be negative?

2453

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Meaning of ingrace protection for motor.for ex IPXY

2982

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I Need standard operation procedure(SOP)for 500kva Oil type transformer oil filtration & Procedure for IR value checking.

2943

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If we need 4c× 50mm sq cable but it's not available so we can pull 4c×25mm sq two cables?

1467

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How much depth n width required for laying of 1X70 Sqmm Cable in Desert???

1676

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DEFINE BREAKING CAPACITY OF BUSBAR & HOW IT IS CALCULATED?

5289

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If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

4548

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