Answer Posted / dubai

I agree with murali.

Transformer having -30˚ angle (here DYn 11) can be
paralleled with +30˚ (here DYn 1) angle by reversing the
phase sequence of both primary & secondary terminals of one
of the transformers eliminating phase angle errors.

oil cooled transformer

2280

---

What is the formula to calculate the size of Aluminium and copper cable?

1997

---

Do any one know exacatly when the results for NHPC held on 8th march 09 for engineering trainees will be released ?. if so please post it, i'm eager to know it.

2207

---

Tell me the reason of connecting domestic t/f primary in star or delta,and also secondary side.

2034

---

explain transformer ct connection?

2110

---

hi every body i am master student in control engineering and my project is slip control in trains i assumed a Dc motore as traction motor but i don't have characteristics of this kind of motor that is used in train. i want from every body if he or she has the characteristics or information about Dc motor that is used in train give me those information or technical characteristics .

1540

---

What is difference between YNyn0 and YNyn ??

2638

---

How Calculet The UPS AH In Load

1956

---

ACB & VCB how do work and saftes and how can maintenance in this and parts name show with picture

2156

---

Why negative feedback is preferred in the control system?

1314

---

how flow current in 220 kv line to line

2039

---

if field breaker of generator is closed prior to its rated speed on a power generating unit. what will be the effect on generator, unit transformer and starting transformer.

1809

---

Hello to all, Please someone can send me HPCL ELECTRICAL Engg. Sample papers to me? Its urjent....my email address is.... raviasiapacific@gmail.com

2183

---

we can run 2phase as 3phase .what will be the differnce with respect to phase angle, power, current between the two modes

2305

---

Explain how you intend to work under pressure to meet up with deadline target?

5269

---