Answer Posted / jai prakash narain singh

AUTOMATIC VOLTAGE REGULATOR(AVR) IS PART OF THE EXCITATION
SYSTEM OF A ALTERNATOR,WHERE IT REGULATE THE GENERATOR
OUTPUT VOLTAGE BY INCREASING/DECREASING THE EXCITATION
CURRENT OF EXCITATION FIELD.
THE PURPOSE OF AVR IS TO BUILD UP RESIDUAL VOLTAGE TO
NOMINAL VOLTAGE LEVEL AND MAINTAIN THE NOMINAL VOLTAGE
IRESPECTIVE OF LOAD,in addition to regulating generator
voltage,the avr circuitry includes under speed and sensing
loss protection features.excitation power is directly
derived from the generator terminals.

i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?

1896

---

along with technical test papers

1606

---

What is the working mechanism of OLTC in Power Transformers????

4321

---

A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.

2107

---

what is electrical machines

3665

---

i need previous entrence exam papers of nhpc.

2836

---

What is Scheme Test of High Voltage Switchgear. Which tests it includes.

2408

---

How we can come to know the substation range,without go through any name plate ?

2099

---

What is the cut-off rate?

1148

---

What conditions are required for transformer to operate at low frequencies ?

1999

---

Who are the manufacturer for Nitrogen based Fire Protectio/explosion prevention for Oil Filled Transformers? India and international both?

1912

---

HOW WORK HEAT PLATE EXCHANGER

1983

---

which type of effect of turbine and generator reverse power protection ?

4192

---

how u measure/calculate renge of capacitor,capacitor has no any rating tag.what is the theory of measure of capacitons.

1979

---

How to calculate loses in transformer of 160 KVA ?

1653

---