Answer / lnp

IP stands for Ingress Protection . i.e. Protection against Ingress of solid particles and water. The first Digit indicates solid particles up to 1mm can not enter the equipment and second digit indicates that water sprayed from any directon cannot enter the equipment.

why crgo core is used in transformers?

6 Answers   Bhel, TATA,

---

What should be the value of earth resistance for an instrumentation/electronic circuit? As per which IS/IEC Code?

3 Answers   IOCL,

---

how much power consumed by 1.5 ton capacity split A.C in 1 hour

2 Answers  

---

describe the fully control circuit diagram of ac drives

0 Answers  

---

Why we use Y-Y connection in power transformer (8-10 MVA, 132 kV to 11 KV)and D-y in distribution transformer (2 MVA, 11 KV to 440 Volts)?

4 Answers  

---

why we multiply 11 in High Electric supply?(eg.11KV, 33Kv, 330Kv etc.)

3 Answers  

---

How we calculate airgap between phases & terminal box of the transformer? any formulae.

1 Answers  

---

Actually why the transformers ate rated in KVA.?

2 Answers   Torrent Pharma, XYZ,

---

what the reson to use phase shift( angle) like (dyn11,Dd5 or Dy0)are usedin power and transsmison line

1 Answers  

---

What are IP protections used for electrical panels, JB, equipments installed in explosive zones like Petrochemicals, Oil & gas

1 Answers  

---

salam&hi, i need to know about how can i calculate an enough current for the new building before i submit it to the suppliers

0 Answers  

---

how can i change the rotation of the AC single phase induction motor and show me by diagram

0 Answers  

---