Answer / prafulkumar

the vector group should be match(phase angle)
voltage rating should be same
frequency should be match

Answer / rakesh. a.d

Two transformers terminal voltage should be same
Two transformers impedances should be same

Answer / medroua

Mandatory conditions:
Same phase angle shift, Same polarity, Same phase sequence and same frequency.

Convenient conditions:
Same voltage ratio & Turns Ratio, Same Percentage Impedance, Same KVA Rating, Same Position of Tap changer if any.

What happens if lizard comes in a MOCB

1 Answers   ABB, Reliance,

---

What is A.T.T.?

4 Answers  

---

what is the condition of transformer parallel operation ?

3 Answers   BEDL,

---

why prds line tapping taken from ms line as Pri SH O/L temp & pressure is sufficient to full fill our requirement of PRDS..

3 Answers   GIPCL, OEGI,

---

How to control cooling tower alge

1 Answers   GPL, SPY Agro Industries,

---

What is indipendant power plant

2 Answers  

---

what is CT saturate?and which effect on CT after its saturate?

4 Answers  

---

63.5 ohm NGR is connected with our gas engine genrator running at 500 rpm, 50 hz and synched with WAPDA at 6.3 KV bus voltages, 2500A and 25KA(1 sec). can some one give me proper calculations how it comes 63.5ohm?????

2 Answers   UET,

---

What is the use of Hydraulic Coupling in-between BFP pump & BFP Motor?

1 Answers   Lanco, XYZ,

---

thermal power plants in steam using inlet of turbine.inlet of turbine pressure and flow is same as boiler feedpump why not use direct to turbine?

6 Answers   IBPIL, JSW,

---

What happens if there is no HP and LP By-pass.

5 Answers  

---

Difference between directional earth fault and non-directional earth fault

2 Answers  

---