What should be the material composition of transformer oil filtration machine to avoid metal contamination in filtered oil?

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Off Load Tap changer generator Step-up Transformer, My question is, is safe to operate the tap say I want to change the tap position from 3 to 4, there is not load on the transformer but a 22000v 0r 1100 v is present on the secondary side from the common Bus *22000V/415 v

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give comparison of three wire & two wire sensors.

0 Answers   Samtel,

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I have 200kg weight cylinder,I want to rotate,but i don't know what is torque of cylinder and what's size of motor for rotate the cylinder.i want to know calculations find out torque of cylinder.

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what is the g.s.t rate of m.s. perforated sheet

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plz send me l&t auestion papers. i have been called for written and interview industrial automation 2 yrs exper. send me on mail pal_deepak06@yahoo.com

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Can we Use AC Servo Motor with Variable Frequency drive instead of Servo Drive? OR with VFD, only simple induction motor can be connected? VFD (Variable Frequency Drive)is having facility of Encoder Feedback.

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What kind of tools and materials are required to test water softening system of heating plant?

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What is autofacturing?

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How can we calculate one operator can 2 to 3 machine? Is it any calculation for this.

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What you know about iso 9001? What is quality management system? Weather qms is suitable, adequate and effective or not? Is there any quality policy? Is there any quality objective? If yes, then what are they? How they are planning to achieve quality objectives? Do they are measure quality objectives?

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any body tell me why 4-20 ma use as a current any reason for this amount why not 3-25 ma?

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