Answer / shiv

Due to week condensor its not getting proper charged.

Answer / tilak raj thakur

low voltage is atilak cause of flickering of florescent tube

Answer / k.prakashchandra

1.loose connection 2.faulty starter 3. tube with faulty filament

Answer / k.prakashchandra

1.filament in tube is broken (90%) 2. winding open in choke
3.starter faulty

Write down the brushes of a de machine.

0 Answers  

---

draw singleline diagram of star to delta and dol starters

0 Answers   JCP,

---

How to calculate VCB current rating for 2000 KVA transformer

1 Answers   Yamuna Power and Infrastructure Ltd,

---

How we can change the direction of rotation of Induction motor? Prove it using graphical

0 Answers  

---

IN 6.6KV 3 phase switch gear .i will give 6.6kv to R phase only to earth in during H.v testing (through H.v KIT).what happen remaining phases.how much voltage get remaining phases.why? explain.

1 Answers  

---

A 10 kva ,400v/200V , single phase transformer with 10% leakage impedance draws a steady short -circuit line current of

1 Answers  

---

how can we detect that which is receiving side and which is sendind end of a trnasmmison line by just seiing it?i.e its which end is coming from genertaing and distribution side?

5 Answers  

---

Energy metering: On the property I am renting, the supply voltage is 2 x 110 volts. These 2 x phases enter a energy meter which then exit the meter to over head lines to my house. Question 1. The meter is single phase 240 volts but is being used as 2 x phase(2 x 110volt), is this acceptable? if not, please give me the reasons. The meter details are as follows: 60Hz 15amp Imax 100 amp Kd 3,6 Wh/R 1 fase 3 hilos Model FX 231. I think it was manufactured in Brasil From this meter, the cables run along over head aluminum conductors,I estimate the cross sectional area to be 25mm diameter, but the neutral is only about 10mm square diameter, which cover a distance of 170 meters and then terminate with an underground cable of 65 meter length, total length = 235 meters. There must be a huge voltage drop over this length. This line is protected with 2 x 200 amp aluminum fuses after the meter, there is no main switch in the distribution board. These 2 phases connect directly onto 2 busbars. Surely the neutral should be the same size as the conductors if not more? Question2. What are your thoughts about this installation, should there be better protection, is the neutral too small? During the night, the lights dim then brighten all the time, this cannot be good for my electrical appliances. In my home, I only have a small electric geyser and fridge, my stove works off gas. But when i use other appliances like the washing machine or microwave oven, the light dim. The internal wiring of this house is done with solid hard drawn copper wires and of course, they have to be under rated. I am a retired electrician by trade, but not on the metering and over head mains side, my experience is on the factory maintenance side of things. Your expertise on these matters will be greatly appreciated. Please inform me how to rectify or make any improvements Kind regards, my power bill is very expensive, so I need to know how to bring it lower. Kind regards, Brian

1 Answers  

---

We have two APFC panels in same station. I need how to connect CT in two APFC panels.can we take one CT in series connection or two separate CTs.

0 Answers  

---

WHY THAT THREE COLORS CHOOSEN IN 3 PHASE? WHAT IS MEAN BY RYB?

2 Answers  

---

There are different classes of protections in power plants.class a,b,c are clear..is there any class d and e r there..and elaborate class b protection.

0 Answers   GMR,

---

How to see the inductance in a transmission lines

0 Answers  

---