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.

Please explain me abt PQ diagaram in the power sector.

0 Answers  

---

What is gross error?

0 Answers  

---

we can use airconditioner for cooling the winding of transformer ,if not why?

3 Answers  

---

what is the diff.between neutral and earth?

4 Answers  

---

why is it that the HT motors & motors having very low kW rating(<1kW) have windings connected in STAR, whereas the motors having in between kW ratings have DELTA connected windings??

5 Answers  

---

MCB MCCB ACB VCB

1 Answers  

---

Why positive terminal of DC 48V was earthed?

1 Answers  

---

what is the difference between surge protection capacitor and surge arrestor

0 Answers   NCS, NCS Sugars,

---

What are different types of control systems?

0 Answers  

---

what happen "when Dyn11 is parallel operation with Dyn1"?

9 Answers  

---

I want to know what is the short circuit level when 8 NOS 2000 kVA, 415v, 50hZ generator connected in paraller

1 Answers  

---

an amazing situation was faced when an alive distribution panel with 415 volts and carrying almost 200Amps has become short and this metal cubical showing 220 volts against neutral and earth. to redress any confusion i checked the panel with help of single 200watts test lamp which also glowing with max.intensity b/w neutral & metal body of DB. amazing situation is that i hold the DB firmly more than once with necked foot means without insulated shoes but not received any electrical shock. whereas our all running gen sets neutral points also proper grounded and this short DB was completely earthed , this is beyond my understanding . any body explain how is it possible . our running gen set neutral also grounded firmly

1 Answers  

---