Answer / parijaat

power load means the highest power that a plant can use,and
lighting load means the minimum power to maintain emergency
process running in a minimum load.Suppose a steel plant
requires 20 mw power to operate completely,then 17/18 mva
power is its power load,and 2-3mva load to operate emergency
processes in running condition,so it is its lighting load.

Answer / manimaran

The power load is nothing but bulk amount of power(huge
power) using in industry.lighting load means small amount
of power using particularly lighting load only.

SIR I AM GOING TO TAKE PART IN JINDAL ENTRANCE XAME OF 4TH OCT. PLEASE SEND ME SAMPLE QUESTIONS FOR THAT ON MY ID JITENDRA1603@GMAIL.COM

1 Answers  

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I just purchased a 4 position cam switch to be used to operate a 3-speed blower motor. The motor is a 10 amp motor and has 3 wires that are used to control speed. The cam switch was rated at 660V 20 amps but when I received it, I noticed that it has AC-15 operational current rating (Ie) of 4/5 amps. If I am reading the label correctly. the 4/5 amps is related to 440v/220V (Ue). Other ratings are AC-3: 5.5A, AC2: 7.5A and AC-4: 1.5A. My questions are 1) Is it safe to use this switch with the motor I have 2) what is the difference between the 20 amp Ith ratting and the Ie operational ratings?

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what is the thumb rule to know current carrying capacity of copper conductors of different size.

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How will you calculate the correct KWH value if your CT is 600/5 and your KWH meter is rated for 100/5

1 Answers   L&T,

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Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

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are induction motor have poles? yes / no , why?

3 Answers  

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there is a power transformer 66/11kV in delta-delta connection has 5 feeder coming out from the secondary side. One of the feeder in it normally loaded (loaded than other feeder)and this feeder usually trips with double OCR causing the bank transformer to trip. Now if the load of this feeder is put on other transformer then that no problems occurs on that transformer or the load. However normally all the test(IR, PI, short ckt, open ckt,grounding test and other ) has been conducted for this but evertything transformer..... I am not geting what is the actual problem...

2 Answers  

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what is recovery voltage & transient voltage ?

1 Answers   Bhel,

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Send me Model Question paper for the post Scientific Assistant in NPCIL

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which technique servo motor tested o.k or faulty ?

1 Answers   ABB,

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what is the meaning of DY-11 Z-5%

1 Answers  

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