Author Topic: About Electric fan (Read 19989 times)

MX45 · « **on:** April 23, 2009, 05:49:11 PM »

Sir pano po ba actual na Fuction ng Capacitor sa Electric fan. kasi pag mas Mastaas ang capacitance ay mas mabilis syang umikot kasi ay experiment to parallel same value. di po ba starter sopressor lang function nya dito?

Philippine Electronics Forum · « **on:** April 23, 2009, 05:49:11 PM »

miGs · « **Reply #1 on:** April 24, 2009, 12:38:38 PM »

The capacitor improves the power factor of the motor. capacitive reactance is inversely proportional to the capacitance, so the greater the capacitance, the smaller the capacitive reactance. The improvement in power factor explains the increase in speed when using capacitor with higher capacitance.

Philippine Electronics Forum · « **Reply #1 on:** April 24, 2009, 12:38:38 PM »

BANNEDMemberAccount · « **Reply #2 on:** April 24, 2009, 12:43:21 PM »

alam ko yung capacitor starter siya ng motor saka para mapaganda rin ang takbo ng motor

Philippine Electronics Forum · « **Reply #2 on:** April 24, 2009, 12:43:21 PM »

Woots29 · « **Reply #3 on:** April 24, 2009, 01:52:35 PM »

ah eh ang alamko rin starter kasi kapag ala yun ayaw umandar eh

Philippine Electronics Forum · « **Reply #3 on:** April 24, 2009, 01:52:35 PM »

insomartin · « **Reply #4 on:** April 24, 2009, 07:52:12 PM »

kung walang kapacitor hindi nya alam kung anong direction cia iikot. may sariling winding ang kapacitor for every revolution nang winding kailangan nang "tulak" galing sa kapasitor. mas mataas ang value mas mataas ang tulak. mas mabilis ngayon ang ikot. kung mabagal na yung ikot nang electric fan mo and kung smooth naman yung shafting. palitan mo na agad nang capasitor bago pa masira. madalas masunog din ang electric fan kung naka stuckup. on the case of pfc... it serves a different purpose. hindi lahat nang motor dapat lagyan nang pfc.

Philippine Electronics Forum · « **Reply #4 on:** April 24, 2009, 07:52:12 PM »

ahlburuto · « **Reply #5 on:** April 24, 2009, 08:18:53 PM »

What if palitan natin ng capacitor value yung sa electric fan, pwede kaya? meron kasi ngayong mga fan na number 1 pa lang eh napakalakas na ng ikot eh. Pwede kaya?

br

insomartin · « **Reply #6 on:** April 24, 2009, 08:23:17 PM »

oo naman if you want to experiment. pero don't change or get a higher voltage rating. wala naman mawawala kung gawin mong 1 farad yung capacitor nyan. pagaralan mo but use your common signs. kung alam mo nang nasusunog eh... tsk tsk

Seigou · « **Reply #7 on:** April 24, 2009, 09:39:44 PM »

yan po ang schematic ng electric fan motor pag binaliktad po ang ends ng L4 ay babaliktad din po ang rotation ng shaft

pag tinaasan po ang value ng capacitor mas matagal po ito macharge kaya mas mataas po ang voltage na papasok sa coil kaya mas mabilis pag mas mataas ang value ng capacitor

ultrasonic™ · « **Reply #8 on:** April 24, 2009, 11:01:16 PM »

Quote from: miGs on April 24, 2009, 12:38:38 PM

The capacitor improves the power factor of the motor. capacitive reactance is inversely proportional to the capacitance, so the greater the capacitance, the smaller the capacitive reactance. The improvement in power factor explains the increase in speed when using capacitor with higher capacitance.

agree

Quote from: insomartin on April 24, 2009, 07:52:12 PM

kung walang kapacitor hindi nya alam kung anong direction cia iikot. may sariling winding ang kapacitor for every revolution nang winding kailangan nang "tulak" galing sa kapasitor. mas mataas ang value mas mataas ang tulak. mas mabilis ngayon ang ikot. kung mabagal na yung ikot nang electric fan mo and kung smooth naman yung shafting. palitan mo na agad nang capasitor bago pa masira. madalas masunog din ang electric fan kung naka stuckup. on the case of pfc... it serves a different purpose. hindi lahat nang motor dapat lagyan nang pfc.

agree

for me the same den sa kanila .... bastah alam ko for starting purposes ang capacitor & improving the power factor of the motor.. & being a have a fixed rotation so dat the ventilation of the air have a fixed flow hehehehehe

Seigou · « **Reply #9 on:** April 24, 2009, 11:16:59 PM »

Quote from: ultrasonic™ on April 24, 2009, 11:01:16 PM

agree

agree

for me the same den sa kanila .... bastah alam ko for starting purposes ang capacitor & improving the power factor of the motor.. & being a have a fixed rotation so dat the ventilation of the air have a fixed flow hehehehehe

hehehe actually ang function ng capacitor sa electricfan ay phase limiter

nililimit nya kung hanggang saang phase papasok ang kuryente sa coil

insomartin · « **Reply #10 on:** April 25, 2009, 01:01:26 AM »

http://www.physclips.unsw.edu.au/jw/electricmotors.html

paki explain yung phase limiter...

wala naman ako masyadong alam sa motors. pero MADAMING electric fans na akong narepair.
kung mapa PFC or Phase limiting hayaan na natin c ccasiser mag decide kung sino ang winner. hihihi.

miGs · « **Reply #11 on:** April 25, 2009, 08:33:32 AM »

Quote from: insomartin on April 24, 2009, 07:52:12 PM

kung walang kapacitor hindi nya alam kung anong direction cia iikot. may sariling winding ang kapacitor for every revolution nang winding kailangan nang "tulak" galing sa kapasitor. mas mataas ang value mas mataas ang tulak. mas mabilis ngayon ang ikot. kung mabagal na yung ikot nang electric fan mo and kung smooth naman yung shafting. palitan mo na agad nang capasitor bago pa masira. madalas masunog din ang electric fan kung naka stuckup. on the case of pfc... it serves a different purpose. hindi lahat nang motor dapat lagyan nang pfc.

ang "tulak" na sinasabi mismo ang power factor improvement. during starting, induction motors have very low power factor, kaya the starting winding (in case of single phase motors) needs "push" from the capacitor. In case of three-phase, starting capacitors are not needed since the windings are displaced by 120 degrees.

robbietan · « **Reply #12 on:** April 25, 2009, 02:50:35 PM »

Quote from: Seigou on April 24, 2009, 11:16:59 PM

hehehe actually ang function ng capacitor sa electricfan ay phase limiter nililimit nya kung hanggang saang phase papasok ang kuryente sa coil

in a single phase AC induction motor needs a rotating magnetic field so that torque could be develop by the motor in order for it to start rotating. a capacitor is used to provide a phase shift in the voltage so that the motor could develop enough torque to start.

for a 3 phase induction motor, no capacito is needed to start as the 3 phase voltgae are already 120 degrees out of phase. capacitors added to a 3 phase motor are designed to improve the motor efficiency by improving power factor.

MX45 · « **Reply #13 on:** April 27, 2009, 05:41:41 PM »

salamat sa inyong lahat malaking kaalaman ito sa akin kung paano nag pa function ang capacitor sa winding ng electric fan. napaka halaga pala ng isang capacitor .. salamat naging malinaw na sa akin at hopely na nakatulong din itong forum sa iba..

aira93 · « **Reply #14 on:** August 01, 2009, 04:55:52 PM »

It is also common to use electric fans as air fresheners, by attaching fabric softener sheets to the protective housing. This causes the fragrance to be carried into the surrounding air.

________________
Bathroom fan

9 Volts · « **Reply #15 on:** August 31, 2009, 10:41:45 AM »

Mga idoL panu ba gawain ung electric fan namin na standard eh..3 na ung sira eh... ayaw umikot parang kelanga ng langis peo pag nilagyan naman ayaw parin umikot ... panu po ba?? tnx

robbietan · « **Reply #16 on:** September 02, 2009, 09:43:32 AM »

if mahirap ikutin ang fan kahit walang kuryente, mechanical problem
if mahirap ikutin kapag may kuryente, electrical problem

mechanical problems - bearings, alignment, etc
electrical problems - windings, capacitor, etc

bj_santino · « **Reply #17 on:** September 02, 2009, 11:32:34 AM »

hello sa lahat. ano po ba talaga ang common na masira sa elec fan?

9 Volts · « **Reply #18 on:** September 02, 2009, 02:36:58 PM »

Anu po ba ang regular maintenance ng electric fan???

Dami ko na kcng nakatambak na d ko magawa na electric fan..

ultrasonic™ · « **Reply #19 on:** September 10, 2009, 10:45:33 PM »

Quote from: bj_santino on September 02, 2009, 11:32:34 AM

hello sa lahat. ano po ba talaga ang common na masira sa elec fan?

mostly pag walang internal resistance ang e.fan kahit nakapress on commonly trouble talaga na open iyong thermal fuse sa loob ng motor

Philippine Electronics Forum · « **Reply #19 on:** September 10, 2009, 10:45:33 PM »

Author Topic: About Electric fan (Read 19989 times)

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