Topic: 50 Hz to 60 Hz

[2RM]

Is there any way para magamit ung amplifier rated 230V, 50 Hz dyan sa atin sa Pinas?

[markcrenz]

Is there any way para magamit ung amplifier rated 230V, 50 Hz dyan sa atin sa Pinas?

yes. set it up, plug it, turn it on and adjust settings to your preference.

[2RM]

yes. set it up, plug it, turn it on and adjust settings to your preference.

Thanks sir, pero ang gusto ko pong sabihin d2 is yung amplifier na balak kong bilhin dito sa middle east is rated 230V 50Hz, eh dyan sa atin is 230V 60Hz ang standard rating.

some of my appliances ko na po ang nasira w/ less than 2 hrs of usage like my HK3490, vacuum cleaner and x-box all rated at 50 Hz, but yung pioneer avr, karaoke player and ps3 all rated 50/60 Hz until now is working fine, all of these came from middle east. Then search ako sa internet about this ,and one of the info na nabasa ko is this.

http://www.henkpasman.com/id1.html

What I want to know is, kung meron bang device, parang frequency converter for small appliances na pwedeng gamitin to adapt my 50 Hz rated amplifier na gusto kong bilhin and madala dyan sa pinas.

[markcrenz]

i read about your hk3490, na-overload yun sa 2 speakers per channel.
walang kaso if you use 230v 50hz amplifier on 60hz, but for motors you need lower voltage (it's even stated in your link). kaya nasira vacuum cleaner mo, di nakaya ng motor. not sure about your xbox, since may transformer din naman yan.
may mga saudi boys akong kapitbahay/kakilala karamihan 50hz din amps nila buhay pa naman. majority lang ng nasira yung nilagyan ng low impedance loads. 

as for the device, wala akong alam na frequency converter for that. meron siguro pero baka mahal. if i were to need one, i'd settle for a transformer that will bring the 220vac supply down to around 183v to compensate for the frequency difference.

[Stagea]

Meron mga frequency converter, pero mas mahal pa sila sa device na gagamitan mo madalas.

They normally rectify the AC feed, then use an inverter for your desired output.

[markcrenz]

Meron mga frequency converter, pero mas mahal pa sila sa device na gagamitan mo madalas.

They normally rectify the AC feed, then use an inverter for your desired output.

why did i miss that, e gumagamit kami nyan? 
si don master nelson buong 10 GW factory nya naka-inverter.

[Stagea]

why did i miss that, e gumagamit kami nyan? 
si don master nelson buong 10 GW factory nya naka-inverter.

Ay si DMF pa! Basta maski anong mahal na pwedeng bilhin eh meron na yun.

[pekspert]

Thanks sir, pero ang gusto ko pong sabihin d2 is yung amplifier na balak kong bilhin dito sa middle east is rated 230V 50Hz, eh dyan sa atin is 230V 60Hz ang standard rating.

some of my appliances ko na po ang nasira w/ less than 2 hrs of usage like my HK3490, vacuum cleaner and x-box all rated at 50 Hz, but yung pioneer avr, karaoke player and ps3 all rated 50/60 Hz until now is working fine, all of these came from middle east. Then search ako sa internet about this ,and one of the info na nabasa ko is this.

http://www.henkpasman.com/id1.html

What I want to know is, kung meron bang device, parang frequency converter for small appliances na pwedeng gamitin to adapt my 50 Hz rated amplifier na gusto kong bilhin and madala dyan sa pinas.

Yes pwede yan. Yung iba nasisira (specially those that uses motors), yung iba hindi. If you want to be really sure open the case of the amplifier and look at the capacitors, on the side it should say the farad and the hertz (some say 50, the others 50/60). Kung nakalagay 50/60 then youre ok. BUt if 50 nakalagay then you can change it to 50/60 ones.

[dyango]

have bought mga surplus power tools na 50hz so far ok naman sila buhay pa upto now,  paguminit ipahinga muna, baka the same din sa amp lagyan lang ng extra fan para hindi umiinit(wherein masmaganda kung malalagyan ang amps ng external fan).

[2RM]

Thanks sir sa mga replies, I just learned now na one of my co-worker have experience the same on his amplifier, I dont know if this is a case to case basis bec. ung iba sa inyo is hindi nasisira. But para makasigurado na lang ako I will avoid 50Hz and go for 50/60 Hz rated ones. Thanks again.

[jay2]

I have a denon 2808 na 50hz bought in hong kong, ok pa naman sya upto now works like my other receivers.

[ATJr.]

yes. set it up, plug it, turn it on and adjust settings to your preference.

+1.....this is it.......a transformer designed for 50hz will run cool at 60hZ because that 50 hz traffo will have more turns, running it at 60hz, the magnetizing current will be lower and so it will run cooler......so i wouldn't worry if i were you....

[JojoD818]

on the contrary, I had once experienced a problem with a well known tube amplifier brand maker using a power supply rated for 50Hz and it caused a lot of headaches, for the owner and the previous tech who tried repairing it. 

it even came from the shop of a well known local personality but wasn't able to fix it, what he did was just hide the problem by installing a busted tube. 

[jackryan]

masters, can you help me learn how they are able to come up with 50/60Hz compatible units?

[ATJr.]

this issue has been beaten to death....just go ahead and plug it in and enjoy.....

masters, can you help me learn how they are able to come up with 50/60Hz compatible units?

they design the traffo for 50hz.....then it is good to go for both 50/60hz...

[jackryan]

actually, i am asking out of personal curiosity. i'd like to understand how certain power supplies can work with 220vac 60hz, others rated as 220vac 50hz, while there are those that are rated as 220vac 50hz/60hz compatible.

this has bearing to another hobby I have (saltwater marine hobby) that can usually get water pumps and other electronics stuff (like LED lights) from HK, SG  but they are usually 220vac/50hz rated.

the other option is getting them in the US but they are usually 110vac / 60hz rated, so forced to use transformers for them

for light load, the other option that we've shared in that hobby is to use inverters in between, so its comes up to be like "220vac / 60hz" -->  "220vac/60hz converter to "12vdc" --> "12vdc HKG inverter to 220vac / 50hz"

thanks...

[ATJr.]

for power supplies especially smps types, these can operate from a wide range of line frequencies and voltages from 90 to 240 volts...

power supplies using transformers and linear dc, hz is a non-issue...

for motors it is a different ballgame....http://answers.yahoo.com/question/index?qid=20081024093129AAHArKf

[jackryan]

thanks...

[Dilbert7]

There's one thing in my mind not mentioned here: clocks!

Some devices have clocks in themselves (timers - or in these digital age we have CRYSTALs, same in time-giving device such as alarm clocks)

I bought a US alarm clock before rated at 50Hz - and it is always giving me fast time (ha ha ha). Later I found out the clock made use as reference the local frequency (60Hz as against US 50Hz), thus the fast time!

Baka me gumagawa pa ng ganyang device - so better be sure!

[Stagea]

Some devices have clocks in themselves (timers - or in these digital age we have CRYSTALs, same in time-giving device such as alarm clocks)

I bought a US alarm clock before rated at 50Hz - and it is always giving me fast time (ha ha ha). Later I found out the clock made use as reference the local frequency (60Hz as against US 50Hz), thus the fast time!

Baka me gumagawa pa ng ganyang device - so better be sure!

60Hz ata sa US, though may mga AC pa din na electric clocks na konti talaga. Our old VCR used AC din for its timing, kaya pag pinihit yung selector to 50Hz sa backpanel bumibilis yung oras.

Old TVs also used the AC frequency for refresh (hence NTSC ang gamit sa countries na 60Hz ang kuryente, and PAL or SECAM madalas sa countries na 50Hz ang kuryente).

[raptor]

the frequency will have no effect if you're not using AC motors ... this is a common thing with the Japan-made computer systems from my previous work ... if there are AC motors, as in line printers, we have to change the disk of the pulley to convert the frequency to 60Hz, but for other equipment without motors, they work just fine

[Nelson de Leon]

why did i miss that, e gumagamit kami nyan? 
si don master nelson buong 10 GW factory nya naka-inverter.

Ay si DMF pa! Basta maski anong mahal na pwedeng bilhin eh meron na yun.

Bumanat na naman kayo. Akala ninyo hindi ko makikita ito ano?  Ang inverter na gamit ko, yun sinasaksak sa lighter plug na sasakyan. 12v to 220v.

Ang pinaka-bigtime dito sa PDvd, si Don King Markcrenz. may lead smelting plant. 

Evidence:

why did i miss that, e gumagamit kami nyan?  maski vacuum cleaner namin, inverter controlled.

[defcon3]

Is there any way para magamit ung amplifier rated 230V, 50 Hz dyan sa atin sa Pinas?

no prob bro. marami na akong gamit na dito galing din sa middle east. wala prob.wala namang motor ung mga electronic appliances. same thing sa mga tropa dito.

bumili ka lang ng AVR (automatic voltage regulator) para sa amp/avr,sub or any electronic appliance.

[AudioAmplified]

I am not an engineer but from my limited knowledge the Hz difference should be okay for an amp but will affect other devices with a motor (i.e. CD player, clock).  I used a 50 Hz bedside alarm clock and noticed it running differently.  If i remember it ran faster or was it slower.  I presume the same happens to a CD player although the difference might be minute.  Also the motor tends to overload and "might" not last as long.

When we started distributing Cayin, we made sure to state that they use 60Hz 220/240V to adapt to our electricity ratings.  This is to prevent them from sending other Asian models (i.e. China, Singapore, HK) who all uses 50Hz.

in short, your amp should work fine hahaha...    hope this helps