Answer Posted / ambrish

Pl. show the standard formula to check vector group tst for
any type of transformer.

Explain in brief description about the operation of DG sets.

2378

---

what is the use of piston rings in the engine used for a generator...........

2145

---

what the principle of sincroscope?how it works?when it needed?

2239

---

What is Fire Panel ? How it works ?

2003

---

Why is it prefer to initiate circuit breaker failure by "86" lockout relay not by "94" tripping relay ?!

1748

---

if the armature current in a dc generator is ac ( sinusoidal ) why doesnt the sjhape af armature mmf a sinusoidal (ni) ? armature mmf in case of a dc machine is triangular.

1930

---

how to calculation increase power factor for single phase

2251

---

How to do maintenance of transformer feeder.

1806

---

FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?

3348

---

What is “pu” in ee?

1018

---

1. If 8.35%Z means the percentage impedance of 132kV-line from power company, we will like to reconfirm its base capacity.

1935

---

We have two parts in generator, electrical & mechanical. how it works?

1895

---

The capacitive reactance of a capacitor of 1/(2(PI)) F at 10^3 H is

1782

---

How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

2040

---

What is the tension required for the 25000 CFM AHU belt

2418

---