Answer Posted / ramesh gaur

There are two types of exciters, static exciter and rotory
exciter.purpose of excitor is to supply the excitation dc
voltage to the fixed poles of generator.Rotory excitor is
an additional small generator mounted on the shaft of main
generator. if it is dc generator, it will supply dc to the
rotory poles through slip ring and brushes( conventional
alternator). if it is an ac excitor, out put of ac excitor
is rectified by rotating diodes and supply dc to main fixed
poles.ac excitor is the ac generator whose field winding
are stationary and armature rotates. intial volatge is buit
up by rsidual magnetisim.

I need bhel electrical test pattern & paper

1900

---

How REF protects transformer alone? explain with diagram.

1600

---

If two Transformers are connected in parallel having impedance of 50KA in both transformers will the impedance increase or decrease after connecting transformers in parallel?

2140

---

What are motor generator sets and explain the different ways the motor generator set can be used ?

1225

---

Can anyone tell the proper diagram of star delta starter????

1978

---

any earth foult trip the relay but in welding time not trip by earth foult

3219

---

What does the a,b,c of 95a,95b,95c relays denotes?

2746

---

Role of active and reactive Power sharing in between two synchronized Generators, Droop Setting role ?

1811

---

Why transformer used in UPS??

1657

---

why is the power generator connected as star earthed or star earthed through reactance and what its features ?

1744

---

How can I calculate per unit (KWH) fuel (Gas/ Diesel both) consumption 1MW unit?

2162

---

why industry prefer ht motor instead of lt motor.

2180

---

how does grading rings & spacers in transmission line works? Working Principle?

2142

---

How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

2047

---

What is float cum boost charging system?

2103

---