Answer / k.kadiresan

For Synchronizing two DG sets, the following parameters to
be checked.

1. Voltage rating of the DG sets and voltage before
paralleling of both DG sets should be equal.

2. Both DG sets Frequency to be checked and should be equal.

3. The Third parameter is the Rating of the DG sets. It
shall be equal. If there is any difference, the percentage
of loading will differ.

4. After paralleling to maintain equal loads, the frequency
to be adjusted.

Answer / arvind

all r correct parameters but one is not mentioned as polarity polarity of both d.g should be same or the alternators will burnt out they donot bunt recently as reverse diodes r placed between them they get first burnt if they not then alternator will get burnt

Answer / raghu

Need to be match voltage, PF,is same at the both the dg.

The electrical energy required to raise the tempreture of a given amount water is 200 kwh. If the heat losses are 20%, the energy required is?

0 Answers  

---

In stepdown transformer 11/415 volt two nos.(R & Y)HT side fuse is blown ,what will be voltage of ry,rb,yb in secondary side

5 Answers   NTPC,

---

circuit breaker work alone during fault condition or need any relays ?

4 Answers  

---

what is the voltage between the earth & neutral 2 is there any continuity TO BE between earth & NEUTRAL

3 Answers   Suzuki,

---

Is there any standard guidelines/Criteria to design NGR/NGT.?

0 Answers  

---

When the power Factor (p.f)is lead then how the Voltage can rises?

1 Answers  

---

Define the "All - Day Efficiency" of a Transformer

1 Answers   Transco,

---

why we can choose induction machine in wind mill? why can`t use synchronous machine?

3 Answers  

---

hai every bodi please let me know the test procedure for lightning arresters.

2 Answers  

---

Explain about how is it working Earth fault'relay and wahts the resistance value of earth bed

0 Answers  

---

what is mean Boost voltage and what is working principle of Tube light

2 Answers   Trimax,

---

which type of motor is used in lift ?

7 Answers  

---