A 40 kva transformer has a core loss of 400W and a full load copper loss of 800W. What is The proportion of full load at maxmimum efficiency?

1 Answers  

---

generator(Deutz 550kv)is runing for 2 hours with load of 900 amp and then it goes in shutdown with alarm fault messege of speed fault although heirtz reading fixed at 50,what does that mean

1 Answers  

---

How to discharge the battery as quickly as possible ?

1 Answers  

---

what is fuction static switch in ups and tell me use parts name and fucion

3 Answers   Dalkia,

---

why induction motors are rated at 0.8 power factor.

0 Answers   Bhel, TN,

---

What is the formula for finding fault level of generator?

11 Answers  

---

what is the design factor that affects the size of a motor ?

3 Answers   Reliance, SGI,

---

What will be happend if we not ground CT secondary?

3 Answers   Enercon, Engro, THDC,

---

who invented electricity?

20 Answers   L&T,

---

On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?

0 Answers   TNEB Tamil Nadu Electricity Board,

---

we have two generators different capacity on 15 MW and other 6MW at 11 KV , 15 MW gen. bus short level current 40KA,and 6MW short level current 25KA,, length of cable 100MTR between 6 MW from 15MW gen. for bus coupling . kindly tell any one can we use both NGR OR one NGR from any GEN. BOTH NGR has diff. rating. Tariq pakistan

0 Answers   RYK Mills,

---

how we can save the power ? suppose the electricity board gives 11 kw , but the machine require only 8 kw means how we can save the exese energy

2 Answers  

---