Answer / a.p.nanjappa

1) BOLT CONNECTION ALL EQUIMENTS CHECKING.

2) MAIN EARTH CONNECTION.

3) eARTH SHIELD, fiber optic cable connections.

4) Test the CB TIMING ,INSULATION, PROTECTION RELAYS,
ct,VT, - OIL TESTS, DS,ES,
5)hvac

6) DC system

7) Outdoor lighting/emergency change over.

8) On line sub stn cleaning eauipment

9) funtional test for Bus bar differenctial protection and
its logic sequence restoration of sub stn equipment. if any)
in case of one and half CB sub-station configuration.

10) fire fighting system.

why transformer tank is in rectangular shape what happen when it is in step shape

0 Answers  

---

State four criteria's for selection of site for nuclear power station.

1 Answers  

---

Draw the equivalent circuit of crystal oscillator?

0 Answers  

---

hello friends this is krunal here.. i have applied for he officer train in hpcl electrical stream.. any one who have applied before for electrical stream please help me out.. post ur reply to my mail id: krunal_airforce@yahoo.com.. any tips, old questions for paper or any help will do.. plz help me.. your faithfully, Krunal Darji

0 Answers  

---

Can any one give an explanation about rating factors of cable? if we are laying the cable on the air with an temp 15 degree then rating factors will be 1.15 and if we are laying the cable on the air an temp 60 degree then rating factor will be 0.76 please describe it and what is the difference between rating factor and derating factor?

0 Answers  

---

---

Stator of three phase induction motor creates Rotating Magnetic field.But why not Transformer?

21 Answers  

---

what is the difference betweem star connected motor & delta connected motor?

13 Answers  

---

How to select a cable size according to load

1 Answers   Red Bull,

---

in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?

0 Answers   apspdcl,

---

What are the application of filter?

0 Answers  

---

What is the need of earthing transformer for delta side of a transformer. (Think of a line section between a star/delta transformer at a grid substation and delta/star transformer at a village. An earthing transformer is there at the delta side of the star/delta transformer at grid substation). As there are no ground reference there will not be fault current if a one phase is grounded. Further L-L phase will be sensed by the primary side of star/delta transformer as a L-G fault. So why an earthing transformer is required at delta side

0 Answers   CEB,

---

How would you supply power to a village which is very far from a sub-station and has only a 11kV line running near by?

3 Answers  

---