Answer / h.o. jagtap

When 240 VDC supply is connected to 240 VAC , AC Supply
work as Low potaintial in each cycle and short circuit
current will follow from DC to AC supply. Beacouse each
cycle of Alternating current DC is positive.

Answer / 12345

when 240vdc supply is connected to 240vac supply then the
power supply becomes zero due to grounding of neutral.

also when the polarity gets reversed only 240vac supply is
been provided to the circuit.

In AC if the direction of current keeps reversing every half cycle, how does it propogate through the transmission lines?

0 Answers  

---

What is the purpose of earthing Truck ? How does it work for busbar and cables?

1 Answers  

---

why incomer bay is required before transformer bay if there are more than 1 nos. of transformer bay.

0 Answers  

---

What is the better way of passing 400 amp from sending end to receiving end ? By overhead line or underground cable and why ? if underground cable then how much depth require ?

1 Answers   Aditya Birla, HCL,

---

The rotor current is directly proportional to slip. How?

3 Answers  

---

How the PF control while running DG set with load

0 Answers  

---

The size and construction of bushings in a transformer depend upon?

0 Answers  

---

We are using 4 MVA transformer and we provided 2 separate earthing pit for Body and 2 separate earthing pit for neutral, can we connect separate body earthing pit to other earthing pit (Equipment earthing)?

1 Answers  

---

how we can calculate LT side current of transformer

2 Answers   L&T,

---

Air refrigeration cycle works on the

0 Answers   Caterpillar,

---

why we generally use 3.5 core cable or in other word 1/2 core for neutral and also confirm me that in balance conditiob(3 phase)current in neutral will zero

7 Answers   HCIL, Jindal, Siemens,

---

Suppose i Have an Ac motor of 25Hp 1500 Rpm 50 Hz Can i run a motor 2500 Rpm by AC drives by increasing a frequency either it safe or not ....

2 Answers  

---