Answer / devendrapandey

yes we connect all earth pits in ring system.IS3043 is the
standerd international rule of earth pit.Acording this we
have follow some rules in meaking earth pit like the earth
resistance should be between the 0 to 3 ohms & some more u
will know as well for making a perfect earthpit.

If the supply voltage is same (say 440V) whether a system designed for 60 Hz frequency will work with 50 Hz frequency or not , if so pl. give clarification.

11 Answers   ABB,

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State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp

0 Answers  

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what are 3 factors when selecting a contactor for a job?

1 Answers  

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if 20 hp motor starts directly stars and contenious run . what will be the effect.

11 Answers   HP, Ohsung Electronics,

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what is power factor? is it good or bad for a system? what will happen if power factor increase or decrease?

4 Answers   Bhel,

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What is meant by a stray loss of a induction motor??? What is the equation to find it

0 Answers  

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IN HT MOTOR HT REFERS TO HIGH TENSION OR HIGH TRANSMISSION?

11 Answers  

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How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.

0 Answers  

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what is S.D.F stands for ? (S.D.F unit 80 amp , TPN )

6 Answers  

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How to calculate the value of capacitance of a capacitor used in power factor improvement plant if we know KVAR and voltages?

1 Answers  

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whats was the problem if neutral and earth got 2volt from the ups output

1 Answers  

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How to do fabrication , busbar and wiring cost for : 1. LT Panels 2. C& R Panel

0 Answers  

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