Answer / sanjay d dalvi

CFL bulbs have an electronic circuit in the base of the
bulb. This electronic circuit is called an electronic
ballast. There is an electronic oscillator and a minature
transformer that produces high voltage enough to ionize the
gas in the tube, initially.

PL tubes are simply connected to the pins at the base.
External ballasts must be used to supply the high voltage
necessary to start the lamps.

how to calculate relay rating for 50kw load

1 Answers   JNU,

---

How many types of interlocking use in screw type air compressor,make-Kaser(BSD MODEL)?

0 Answers   Automobile, Siddhi Vinayak,

---

what is the role of energy meter in distribution system ?

0 Answers  

---

What are interpoles and commutation windings?Why r they used?

1 Answers  

---

Mention the disadvantages of low power factor?

0 Answers  

---

WHAT IS MEANING OF Gg & Gg IN hrc FUSE

0 Answers  

---

I have a question, I visit 01 site and face a problem, there is 2.5 ton Air Con working, when air con compressor is running at that time rectifier voltages are increasing upto 290-295 v and rectifier is giving main high alarm (rectifier is APC single phase), before starting compressor rectifier voltages was 230v. when air con is going off rectifier voltages are decreasing smoothly at its actual voltages 230v. Load on Genset phases is this: Red-13.5 amp AC (Air Con load), Yellow-1.7 amp AC (BTS lights etc.) and Blew-4 amp AC (telecom system load), Genset phase to phase and neutral to phase voltages are also ok. These are 10 sites having same system and same rectifier APC brand at every site 02 genset are working but the problem is same at all these 10 sites. What will be the reason behind???

1 Answers  

---

How calculate cable size & voltage drop for the following requirement connected load 150 KW distance cable length 1000 M voltage 3 phase 415 v.

1 Answers  

---

what is diff between Fourier series and Fourier transform?

2 Answers  

---

about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ?

2 Answers   NTPC,

---

IN A DY11 GROUP DISTRIBUTION TRANSFORMER WITH NEUTRAL EARTHED, WHAT WILL HAPPEN TO THE SYSTEM VOLTAGE & THE EQUIPMENTS IF EARTH GETS OPEN ON LOAD?

2 Answers  

---

Why power genaration in India is at 50HZ while America its 60HZ

0 Answers   TATA,

---