WHAT IS THE USE OF ANTIPUMPING CONTACTOR IN HT BREAKERS

8 Answers  

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Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

0 Answers  

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Going in for a three phase motor or a single phase motor, what factor should be considered for this? For eg., to pump water to certain height and such domestic applications, which motor is suitable?

1 Answers  

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Hi.I want to ask how to calculate contactor rating current? for example I have 460 V , 100 A (induction motor) calculate contactor rating current?

2 Answers  

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what is the purpose of starter in tube light?what is it operation .

1 Answers  

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what is bus post insulator and its applications in substations

1 Answers  

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Why frame of the motor is specified?. If we mention KW and voltage level,automatically frame is decided or separately frame is compulsory to mention?.

0 Answers   DAE,

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why v use only sodium bulb or orange color lights on streets, y nt CLF OR TUBE LIGHTS

3 Answers  

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what is the maximum current carrying capacity of a 95 sqmm cupper under ground cable laid partialy in land and partialy in ground?

4 Answers  

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what is difference between earhing and neutral

2 Answers  

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HOW SKIN EFFECT REDUCE THE CROSS SECTION OF THE CONDUCTOR

2 Answers  

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what is neutral grounding? why is it required? what is neutral grounding resistor and how is its value calculated??

11 Answers   NTPC, ONGC,

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