Answer Posted / biswajit das

"hydro treated light nephthanic distillate"
Comes from fractional distillation and subsequent treatment of crude petroleum.

What are dependent sources?

1157

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Difference between control junction box (cjb) and power junction box(pjb)?

4299

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whats the existence of reactive power and when it arises?

2115

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We have 750KVA DG set, we want to introduce REF relay with 1250/1A,CL PS,Current transformers.The lead distance of 2.5mm copper flexible cable from CT to relay is around 5mtrs.We would like to know the knee point votage(VK) & IM calculion for CT's

1904

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Iin ESP why positive is grounded ? why not negative ?

2625

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what is the control circuit for operating the clean room air shower

2242

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what is feed back and what are feed back amplifiers?

1053

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How do we calculate the resistance per metre of single core aluminium stranded cable 19*3.25mm sheathed in pvc,at 15 deg C temperature?

2383

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what is ground fault in ACB?

2060

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What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?

2073

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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?

1728

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Draw torque - speed curve and load curve of induction motor? mark operating point ?

2028

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What is meant by Low Resistance Cable and High Resistance Cable.

1894

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How to measure size of cable on a given load

1818

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What is a diode?

1044

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