flurescent bulb rating is to 230v,50HZ.now flurescent
connected 230v,25HZ.whether nreduced frequency will affect
the glowing properties of flurescent.
Answers were Sorted based on User's Feedback
Answer / nahin
yes.
fluorescent bulb works under the principle of scattering of
electron.An incident electron collides with an atom in the
gas. According to the Einstein formula: Kmax=hf+phi,
the kinetic energy depends on the frequency. So, if we
reduce the frequency, the kinetic energy of electrons will
also be reduced and thus the performance will be degraded.
| Is This Answer Correct ? | 7 Yes | 0 No |
Answer / s.arul
yes, surely affected the glowing.
flurescent lamp in 50hz supply 20milli second one time
reached in zero position in sine wave (that time light not
glowing) that time is very less. in 25hz supply 40ms one
time reached in zero position that time light not full
brightness compared to 50hz supply.
| Is This Answer Correct ? | 1 Yes | 1 No |
what is the basic construction diffrance between servo motor ans sqiralcage induction motor
A IS TWICE AS GOOD A WORKMAN AS B AND TOGETHER THEY FINISH A PIECE OF WORK IN 14 DAYS.THE NUMBER OF DAYS TAKEN BY A ALONE TO FINISH THE WORK IS 1.11 2.21 3.28 4.42
what is difference between power & distrubution transformer ?
what is kvarh? Please define it With calculation General motors ?
what is surge arresters ?........
what is the use of sdf?
What is the diffrence between an ELCB(earth leakage circuit breaker) and RCCB(residual current circuit breaker)?which has higher degree of safety and why?
11 kv line me tino phase takra jaye to present time me approximately voltage aur current kya hoga...
2 Answers Electrical, Electrical Tech, Videocon,
We have 2 Nos. Transformer with the capacity of 2000KVA and 1250 KVA and currently using only one 2000KVA T/R during operational hours while non- operational hous 1250 KVA T/R also used to reduce T & D losses. Similarly, 2 capacitor bank of 500KVAR and 300 KVAR also installed to balance reactive power. Now problem is around 1000 KW load PF is not maintaning 0.99 as 350 KVAR capacitor is in healty condtion. Now the PF is maintain 0.95 to 0.96.
how does grading rings & spacers in transmission line works? Working Principle?
How to calculate fault level of 11 KV system
how does commutator convert a.c to d.c?
0 Answers NRSC National Remote Sensing Centre, RBC,
Civil Engineering (5086)
Mechanical Engineering (4456)
Electrical Engineering (16639)
Electronics Communications (3918)
Chemical Engineering (1095)
Aeronautical Engineering (239)
Bio Engineering (96)
Metallurgy (361)
Industrial Engineering (259)
Instrumentation (3014)
Automobile Engineering (332)
Mechatronics Engineering (97)
Marine Engineering (124)
Power Plant Engineering (172)
Textile Engineering (575)
Production Engineering (25)
Satellite Systems Engineering (106)
Engineering AllOther (1379)