Answer / lousy.lass

when silice gel changes to pink it should be replaced by the new one which is blue

Answer / pillay

color is sure an indication of the status of the silica gel.
but deep blue is the color of dry silica gel and pale and
pinkish means the moisture content is high.at what length of
time it should replaced depends on howlong it takes for the
color change.

Answer / k.prakashchandra

My answer is wrong regarding change of colour, When 50 % of
the silica gel turns white ,it should be replaced or
reconditioned.

Answer / k.prakashchandra

When all turn to blue
colour
you can dry in the sun or carefully roast till the the
whole mass regains white colour and re-use

Why HT cable have only 3 core ?

10 Answers   Jindal, McDermott,

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which cable is used for 15 Hp monoblock pump 3phase and service wire Distance is 210 feet please tell me cable size Armaured

0 Answers  

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What is warm / cold start of HT motors. How many warm start & cold start are possible in a day?

0 Answers  

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difference between substation & grid substation?

2 Answers   GMR,

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what is servo motor and how to work it.

0 Answers  

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The MCB circuit breaker have a voltage rating of 440VAC it's possible to supply a voltage of 480Vac

1 Answers  

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bit confused - am i correct in thinking that to determine line to line voltage in a star config 110v 3 phase 4 wire distribution system i would use a voltmeter? I have a circuit configured as an unbalanced load, consisting of three incandescent lamps (1x40w, 1x60w, 1x100w - all 110v rated)connected in a star configuration to a 110v 3 phase 4 wire distribution system. I want to find out what types of meters i would use to obtain: a) each line to line voltage b) the line to neutral voltage across each load c) current flowing in each line and load d) current flowing in the neutral conductor e) power supplied to the loads im assuming i would be using ammeters in series along each line and voltmeters in parallel across each line to neutral? Also how could i predict these meter readings before taking them and with which formulae? Any help would be greatly appreciated A.

1 Answers  

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can we use metering current transformer as protection current transformer if not why? & if yes why?

5 Answers   Wartsila,

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If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")

0 Answers  

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Give me check-list for electrical preventive maintenance of machine tool.

1 Answers  

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in traction which type of supply are used

15 Answers   APGenco, Construction,

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oil cooled transformer

0 Answers   Jindal,

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