Answer Posted / vivek

work done/energy input

in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?

2278

---

what is the reason the main breaker is trip during the motor is running? (some time the breaker is not trip)

1731

---

how is the incoming cable size calculated for a given current rating of a panel??

1853

---

What is excitation in case of dc motor?

1104

---

whati s the sludge current in ups

2161

---

What happens to voltage when current through the inductor is constant?

1078

---

how to identify the cable quality and what is flame proof cable

2065

---

what is the value of combined earthing in general electrical circiut?

1842

---

How to Prepare preventive maintenance shedule of machine tool.

1952

---

What is the use for cable entry in control room?

1107

---

What are capacitive,resistive,inductive surge absorbation? What is ferranti surge absorber? What is lagrangian cost? What is Px operator?

1950

---

how flow current in 220 kv line to line

1918

---

What is the function of NGR for the parallel operation of alternator? whats happen when different rating of alternator are running with parallel?

2920

---

Is it possible to measure correct value of earth resistance & cable insulation ristance with out disconncting earth lead & both sides of cable ends? If not, any other method to measure ER & CIR with out disconneting from the system.

2053

---

Hi guys! Plz help me to answer the following questions. 1. What are the types of transmission line energy losses? 2. Why are the VLF are used some types of services? 3. What frequencies are used for reliable beyond the horizon terrestrial communication without repeaters? 4. To permit selection of 1 out 16 equi-probable, what is the number of bitis required? 5. What is the most common modulation used for telegraphy? 6. What is the multiplexing is used to increase the capacity of the optic fiber? Thanks

2028

---