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.

Define heating time constant of electric motor.

3 Answers  

---

What may be happen if neutral and earth is shorted in a substation

3 Answers   Bureau Veritas,

---

will the introduction of capacitor bank parallel with the induction load reduce power consumption

4 Answers   Nokia, WAPDA Water and Power Development Authority,

---

WHY IN THREE PHASE CABLE 440V CURRENT FLOWS IF IN ONE PHASE 230V CURRENT FLOWS ???

3 Answers  

---

In a panel 2500A ACB is the incoming breaker then what is the size of the bus bar?

1 Answers  

---

how to calculate the output power of vfd , please help me.

1 Answers  

---

what is the difference between earthed cables and unearthed cables

2 Answers   Bhel,

---

what is the role of reactive powerin transmission and distribution?

3 Answers  

---

Differentiate between low pass, high pass and band pass filter?

0 Answers  

---

what is the difference between inductive load and capacitive load?give me some examples in general

3 Answers  

---

Which type starter is used for synchronous motor?

2 Answers   Equate,

---

Simple calculation of improving power factor?

5 Answers  

---