Answer / imranqureshi451@gmail.com

BUCKHOLZ RELAY

Answer / k.prakashchandra

Such relay is possible in digital systems such as
telecommunication.I think it is 'frame relay'.

How do you select a cable size(Cu & Al) for a particular load?

2 Answers  

---

how much watts the computer will takes

2 Answers  

---

what should be the ideal gauge of wire (In sq mm) for different loads in Ampere?

0 Answers  

---

1.what is surge 2.what is lightning 3.what is switching 4.difference between surge,lightning,switching used in power system 4.definition of surgearrestor,lightningarrestor 5.adv and disadv of surgearrestor,lightningarrestor 6.uses and purpose of surgearrestorand lightning arrestor 7.block dia of surge arrestor 8.blockdiagram of lightning arrestor 9.operation and working of surge arrestor and lightning arrestor 10.basic formula of surgearrestor and lightning arrestor 11.basic diagram of surge arrestor and lightning arrestor

1 Answers   Crompton Greaves, Framo, L&T,

---

I have 2 Nos of 2500kVA 33/0.415V cast resin transformers. How to decide on ampere rating of HT Panel? Also advise me how many panel RMG i have to consider whether 4 panel ok?

1 Answers  

---

how to meas-our losses for L.T & H.T

0 Answers  

---

What will be the size of copper cable (each for 3 phase and 1 neutral) from Service connection Kit-Kat to Panel Board (i.e. to main switch) for a 6 pole 3-phase AC induction motor of 200 H.P. capacity? Amp-255 A, Frequency:- 1450 rpm.

0 Answers  

---

What is the basic difference among Circuit breaker,Contractor and Isolator? Are they different names of same device/equipment?

2 Answers  

---

What is Form factor?

2 Answers   NTPC,

---

what is meant by moulded case circuit breaker ?

0 Answers   ABB,

---

Why in Digital Megger for finding Insulation resistance,-ve is applied to core or conductor and +ve is applied to ground.

1 Answers   ACC,

---

calculation of knee point voltage of current transformer?

2 Answers   TATA,

---