Answer / wiztech

Wiztech Automation is a pioneer PLC training institute in
Chennai with industrial excellence in providing training to
hundreds of students.

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end automation solutions.

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placements.

Is there any design in the world a 220 KV transformer without breather …??????

2 Answers  

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what is differentila pilot supervision in the incomer control panel in the power station?

0 Answers  

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what is the basic principle of TV camera?

0 Answers   BZU,

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two parallel conductors are carrying the current in the same direction.which of the following statements is true? (a)there is arepelling force between the conductors (b)the force increases when the distance between the conductors is increased (c)there is an attaracting force between the conductors (d)the force increases when the distance between the conductors is decreased

1 Answers  

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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?

0 Answers   Nalco, NTPC,

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what is the difference between RCCB and ELCB?

3 Answers  

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How is a 100 MVA transformer cooled?

9 Answers  

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how calculate gd2 of ht motors

0 Answers   Hindustan Copper Limited,

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What is the rating of circuit breaker needed for 300 KVA load in 33 KV supply line in a transformer of 33 KV / 415 Volt ?

0 Answers   Hira Group,

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Give some differences between open loop and closed loop?

0 Answers   Ericsson,

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In our homes we place the 5Amps fuse...now in our house only takes 5Amps for all normal conditions ha???

2 Answers   Areva, Bajaj, MSP,

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Just a silly question but just to make my curious mind bac to normal - Why was not 67 and 67N relays built into a single relay as i have noticed that the R,Y,B CT wiring end up into the 67 relay while the common of the R,Y,B CT wiring end up into the 67N relay. Then it was better if a single relay was manufactured just like the distance relay (21). Another question i would like to ask is - how do we know where the 67 and 67 N relay has to be placed.why is it not placed at the transformer bay? In the substaion that i am working -i have noticed that it is placed between a breaker and a common double bus bar and this line bay is connected to another substation at a remote place which is furthur connected to a load. B U S______CT for 67 & 67N ______Breaker _____ remot s/s. B A R

1 Answers  

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