Answer / simon

1H.P=735.5 Wt
So 40hp=40*735.5= 29420Wt
Hense-29420Wt=29420/440v= 66.86 Amp.....

why rating of transformer is in KVA but of motor is in KW

4 Answers  

---

Difference between KW & kVA

7 Answers  

---

What are the condition for parallel operation of transformers?

2 Answers   Alfanar,

---

how did the testing of protection relays done through current injection

0 Answers   Bhel,

---

What is referred to the electron in the outer orbit?

0 Answers  

---

What is the fusing factor ?

4 Answers   MESCOM Mangalore Electricity Supply Company Limited,

---

how to find total current when kva is 30.4 given ? should we use root 3 (1.732) in the formula?

2 Answers  

---

Describe the test procedure to determine the vector group

0 Answers   MPSEB,

---

What is difference between YNyn0 and YNyn ??

0 Answers  

---

how can decide the current rating of oltc

0 Answers  

---

How much must be gape bitween 2 cable on cable tray?

1 Answers   El Seif,

---

1)Why potential transformer primary site grounded? 2)can be loop between neutral & body for grounding? 3)What is the difference between ELCB &RCCB? 4)Why we use iron core in transformer insted of wooden core? 5)what is the principle of excitation? 6)Why we test the core balance test for transformer? 7)what is creepage?What is the creepage length for insulators at different voltages? 8)How much type of relays used for differential protection of generator,transformer & busbar protection?

5 Answers  

---