Answer / sukant mohanty

in isjand condition the terminal voltage v is not constant, at that time avr maintain terminal v by increasing or decreasing exitation current. But in synchronised condition the terminal v get constant as the grid voltage, at that time the variable remains ICOS(THETA). So avr maintains p.f. at that time.

Answer / k.prakashchandra

After synchronising ,the voltage can be reset to obtain the
desired pf.Or you can change over to auto pf mode,
selecting the desired pf.AVR maintains the set voltage and
APF maitains the set pf

What is the following which is printed on electrical appratuses like AC21 ,AC 23 , etc ?

1 Answers  

---

Can we manually synchronize two DG sets of same ratings manually without using speed biasing ? If yes then how?

4 Answers  

---

how to measure the A.C flux .-instrument

8 Answers   NTPC,

---

what is amf panel & how it is working

6 Answers   ATS,

---

Type of cable insulation?

3 Answers   Essar,

---

What is the purpose of stablization resistor in high impedance bus bar protection

0 Answers   Jindal,

---

role of europe union in UK safety legistlation (electrical safety)

0 Answers  

---

what is the minimum (Common factor) insulatin resistance of the following a, 4mm sq wire b, cable from 50 mm sq to 800mm sq

0 Answers  

---

what is relation between HP & BHP

3 Answers   Usha Martin,

---

i want to know how to calculate the battery capacity based on the UPS . ex i want to run have one kva UPS Which should run 10 hours ? in that case how many batteries to be installed and what will be the AH Value .

2 Answers  

---

why told ' x ' mer to transformer

1 Answers   Electrotherm,

---

What is the polarization index value ? (Pi value)and simple definition of polarization index ?

0 Answers  

---