TRANSFORMERS WITH DC SUPPLY
No Answer is Posted For this Question
Be the First to Post Answer
Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer
What is the difference between resistance grounding system and resistance earthing system?
What is the maximum No. of out going mccbs permitted from an LV distribution paqnel? What is the ampere relation between incomer and out going switch gears/mccbs?
What is the main application of DUMMY COIL in machines?
In the case of petrochemical area AC drive & AC motor is used where the speed variation is required. Why they are not Using DC drive & DC motors in such areas?
what is the significance of 3.5 core cable? or what does this half core mean and why is it required?
why 3 phase induction motor only need starter ? why not other motors need starter ?(like synchronous motor,single phase induction motors & their types) ?
How to select AC3 duty contactor for DOL & Star-Delta starters
List the disadvantages of constant k filters?
what is the difference betweem star connected motor & delta connected motor?
Can anybody tell me the Electrical IS rules website?
Does Lightening arrest requires Earthing?..