What is the full form of CNC in electrical mechines.......?
Answer Posted / psingh
Computer Numeric Control system
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Why neutral is not used in three phases dol starter
what is the illumination level required for child play area?
Installation method of self treated earth electrode.
1. What is differential relay? How it operates? 2.How to calculate the Short Circuit Impedance in Transformer? 3.What is the alternate solution for testing of polarity by using polarity tester while its milli ammeter does not works? 4. While testing the 33KV Busbar by using Hipot kit, what should be the test voltage we have to apply? 5. What is the procedure/activities to be taken to inject the current more than 2000A by using 2000A Loading Transformer? 6. Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example? 7. Why restricted earth fault protection is needed? Why can’t differential Protection is sufficient? 8. What should be the minimum and maximum ohmic value for earthing? 9. Why DC Currents are not used in transformer? 10. What is the Frequency while we step up the voltage from 220V to 11KV? Is it possible? Explain it?
How to calculate capacitor bank size at a load 800kVA.
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How many capacitors using in LT panel as per Govt rules?
what happen if the supply is given to the stator of the 3phase induction motor with out assembling the rotor ?
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What is the difference between DOL starter and star delta starter
Define steady state error.
Give details of your interested designation, the post you are interested to serve the company better and explain why you think you can serve the company better in such position if employed?
State norton’s theorem?
how to convert lv line to hv line and viseversa, any losses will occur during this process
A 7 storey building has a floor area of 35,000sq.ft on each storey. On the ground floor 11KV electrical sub-station is to be erected. A load of 3kw for every 400sq.ft (p.f is 0.8) is proposed for each floor. fire pump 7.5hp, water pump 5hp, lift 2 nos, each 10hp and 20shop load of each shop is 5kw. calculate a. load each floor b. total load of building c. L.T feeders for aech floor and from transformer to main. d. distribution diagram e. capacity of sub-station/capacitor bank f. line diagram