What the difference between three phase contactor (coil 110vac) & three phase SSR (control voltage 110Vac)? May I use contactor in place of SSR?

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i want design of D.C.MOTOR 1HP 960RPM AND 2HP 960RPM ITS URRGENT

0 Answers  

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how DC is differ from AC ? what are the difference between them ?exept (P-N)&(+__-)

2 Answers  

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How many types Switchgears?

4 Answers  

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AC is the magnitude of sinosudial-wave but we use cose value to determine power factor instead of sine value.

2 Answers  

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we specify current in case of feeder but in case of distributor voltage, why?

0 Answers  

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what is meant by phase &line voltage, how its differ from each other ?

5 Answers  

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what is upper impedance and lower impedance of a distance relay

0 Answers  

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When we have earthing mesh or underground earthing network in industrial plants, weather we have NT-S or NT-C-S kind of earthing system, so eventually weather we must use 4 or 5 wire in 400 volt level (For example 3×150+70 mm2 or 5×150 mm2) in this connection I would like to know exactly the paragraph of IEC or IEEE number

0 Answers   TATA,

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What is meant by vector group

0 Answers   GPSC Gujarat Public Service Commission, VA Tech Wabag,

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what is High resistance grounding and whatis the criteria for the selection of High resistance grounding

1 Answers   MAHINDRA,

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State the types of distortions in amplifier?

0 Answers  

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