Answer / venkatesh prasad

there are no protective devices in the starters, starters are mainly used to protect the motor from high starting currents.

what is the function of impulse relay

0 Answers  

---

Difference between UPS and Inverter?

7 Answers   HCL,

---

If a transformer primary winding operates at 240v, the secondary at 120v and the load is 1500w & the transformer is rated at 92% efficient, what's the current flowing through the primary winding of the transformer? What is the formula for finding this?

0 Answers  

---

what is the earth resistance ?

5 Answers   Bhel, Cummins,

---

Why? We r used 50sq. mm. And above size cable in 3.5 core and below size are used in 4core

2 Answers  

---

hi i wonder will the speed of a 50hz AC motor reduce if i supply it with 25hz?

4 Answers   Divis Laboratories,

---

what is first ground fault & second ground fault. This is used in rotor protection of alternator.

1 Answers  

---

Why charcoal and salt add in earthing pit.

6 Answers   Garware, NTPC, Sterling Wilson,

---

What is evaporator & condencer & compressor

0 Answers   Standard Chartered,

---

why most of junction box vendors providing T5/T6 Temp class jb's for T3 area any special reason?

0 Answers  

---

Explain the function and difference of Restricted earth fault, simple earth fault and sensitive earth fault with connection diagram.

0 Answers   ABB,

---

What is ahu ? Working principal.

0 Answers   Sodexo,

---