Answer / venkat

basically there are 3 types of relays 1)electromagnetic
relays 2)electro static relays 3)microprocessor based
relays. and the name to realys came from
application ,ex.over current ,under frequency,etc ......
so basic classification is just like first line

Answer / thowsif_emerson

Types of relay
1 Latching relay
2 Reed relay
3 Mercury-wetted relay
4 Polarized relay
5 Machine tool relay
6 Contactor relay
7 Solid-state relay
8 Solid state contactor relay
9 Buchholz relay
10 Forced-guided contacts relay
11 Overload protection relay

Answer / kumar

mr thowsif .i already get the above answer in
wikipedia .but i think this is not proper answer thats y i
submitted this question any other answer please
forword ,thank u

In auto transformer if power transferred inductively and conductively are same, the ratio of output/input voltage is A 1 B 0.7 C 0.5 D none of above

2 Answers   Getco,

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whenewher three phase supply is given to induction motors revolving/rotating field is created & rotor rotates.When the three phase supply is given to three phase transformer then revolving,/rotating field is created or not? if not why?

1 Answers  

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how power factor improves by connecting syncronous motor

2 Answers   ACC,

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2 Answers   NTPC, Student,

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2 Answers  

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how is working the APFC when varying the load?

1 Answers  

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What is the value of system voltage?

2 Answers   Bhel,

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0 Answers   Bhel,

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Given a collection of points P in the plane, a 1-set is a point in P that can be separated from the rest by a line; i.e. the point lies on one side of the line while the others lie on the other side. The number of 1-sets of P is denoted by n1(P). The maximum value of n1(P) over all configurations P of 19 points in the plane is 18

0 Answers   TCS,

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what are the problems that generally occur in power flows??

1 Answers  

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in a simple IDMT relay we use neutral point of ct for earth fault then what is the requirement of neutral ct and cbct?

0 Answers  

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