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what is the difference b/w KVA and KW? the transformer are mentioned KVA rating and the loads are mentioned KW.why?
2 3524ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]
2372iii) A shunt motor runs at 70 rad/sec from a 460V supply and takes in an armature current of 100A. Resistors of 2.52 ohms and 1.64 ohms are connected in series with the armature and in parallel with the armature respectively. The field excitation remains direct from the 460V supply but the generated torque is halved. Determine the new running speed. Neglect brush voltage drop. The armature resistance is 0.4 ohms. [15]
1 2618I am new in work for 1 of our project we have some instrument in BOM including Pressure, Temp. and so on, I also noticed some objects like pressure switch process HOOK UP; which I don't know what does "HOOK UP" mean here.
3 5916Why are transmission lines multiples of 11? Is it because of some historic reason ? Or is there a scientific base to it?
5 6783What all are important things keep in mind while designing and executing the water storage tank works?
1 4875how the length effects the ampacity of the cable? if a cable is carrying a current of 100A for 50m length then what will the effect on current if we double the length?
2 5034
What does quality factor depend on in resonance?
i am studying mechanical engineering third year.. i want to study ine year marine bridge coure.. is that good for me?
An ELHNC 80amp 240v 30mA RCD is tripping periodically, every 30 - 180 seconds is it safe to disconnect the protection circuit?
Different types of relay fault which phase sequence??
Which type of air compressor is used now a days in the market. Keeping in mind of energy efficiency and maintenance points. Relevant documents may also be sent on mentioned email ids.
A flange is used for instrument connection for a system with a design temperature of 316C (600F) and a design pressure of 1000 kPa (145 psi). What is the class rating of the flange to be used for this application? Explain your answer
How to Create the Node file with 2 E1 (4+4+4) & EDAP.
what is the weight of 10mm,20mm,40mm aggregate
what is the specific gravity of rubble in plum concert
A family, planning a weekend trip, decides to spend not more than a total of 8 hours driving. By leaving early in the morning, they can average 40 miles per hour on the way to their destination. Due to the heavy Sunday traffic, they can average only 30 miles per hour on the return trip. What is the farthest distance from home they can plan to go? (EXPLAIN WITH PROPER STEPS)
What is balanced color way?
How will change the frequency in distribution side?
Explain the fundamental principle of Knitting?
What are the properties and application of manganese steel?
Sir, Iam Applied in rrb for the posts of Junior Engineer.I want to know about the or question previews to study well.Pl send it to shukla_varun1985@yahoo.com.
