Search: Posts Made By: xchcui
Showing results 1 to 24 of 24
Search took 0.01 seconds.
08-03-17, 05:35 AM
Replies: 9
Views: 769
Posted By xchcui

This is exactly what i was thinking to...

This is exactly what i was thinking to do,clocert,but i didn't have
a smaller and a bigger capacitor to make the test.
Buying capacitors only for that purpose is not the best idea.(a waste of...
08-02-17, 05:46 AM
Replies: 9
Views: 769
Posted By xchcui

Okay,i understand. I was pretty sure that there...

Okay,i understand.
I was pretty sure that there are,also,AC practical engineers in this forum
,while the Air Conditioner compressor has PSC motor.
So,i will ask it in different way.
If the run...
08-01-17, 07:53 AM
Replies: 9
Views: 769
Posted By xchcui

Thanks for your response,but you answered very...

Thanks for your response,but you answered very partly to my question..
My main interset is in the current aspect.(at the run capacitor vs the starting capacitor according to my descriptions)

If i...
07-31-17, 12:52 PM
Replies: 9
Views: 769
Posted By xchcui

PSC motor behavior when changing run capacitor value.

Hi.

I was browsing and read alot of articles and forums around the web
and i didn't find a full explanation about the behavior of the current
and the voltage in the PSC motor.
Here are two...
07-09-14, 07:01 AM
Replies: 13
Views: 6,722
Posted By xchcui

Thank,again,for your help. I am not angry about...

Thank,again,for your help.
I am not angry about anyone,the opposite is true,you also helped me in the past and i appreciate any assistance.
By the way(slightly late)Happy 4th of july:beers:
07-07-14, 12:30 PM
Replies: 13
Views: 6,722
Posted By xchcui

OK.PJmax. The issue is not clear enough,but...

OK.PJmax.

The issue is not clear enough,but you,after all, answered to my main question.

Thanks.
07-06-14, 07:19 AM
Replies: 13
Views: 6,722
Posted By xchcui

Hi,PJmax. :eek:what happened? Because i...

Hi,PJmax.

:eek:what happened?
Because i told you that i try to recognize the difference between them and not to build one ,you decided not to answer my questions.:confused:
I asked you several...
07-02-14, 12:34 PM
Replies: 13
Views: 6,722
Posted By xchcui

No,i,just, try to recognize the difference...

No,i,just, try to recognize the difference between them.
and multi tap motor without the ac driver(triac,pwm,choping...)seems to me more reliable.

So,do them both multitap motor without ac...
07-02-14, 06:43 AM
Replies: 13
Views: 6,722
Posted By xchcui

I try to understand if the pedestal fans that...

I try to understand if the pedestal fans that come with remote control and have lcd screens are using inverters(ac drivers)to control the speed(by changing the frequency to the motor or they are the...
07-01-14, 05:35 AM
Replies: 13
Views: 6,722
Posted By xchcui

I didn't,exactly, understand your answer.:o ...

I didn't,exactly, understand your answer.:o
What do you mean when you said" If the remote control can variably control the fan speed ..."you mean that the remote control have only one button for...
06-30-14, 07:06 AM
Replies: 13
Views: 6,722
Posted By xchcui

Hi PJmax. I have ceiling fan and it changes...

Hi PJmax.

I have ceiling fan and it changes its speed by changing a capacitor value(a small closed box,that has inside 2 capacitor).But it is not,of course,pedestal fan and i thought that there...
06-29-14, 12:57 PM
Replies: 13
Views: 6,722
Posted By xchcui

speed control method of pedestal fan.

Hi.

I see in the stores a lot of pedestal fans that have lcd screen and remote control.
They have digital timer,4 speed and the possiblity of choose the behavior of the wind(besides the 4...
06-25-14, 05:36 AM
Replies: 2
Views: 1,110
Posted By xchcui

Thanks Gunguy45. Its seems logical what you...

Thanks Gunguy45.

Its seems logical what you are saying and that is what i thought,but i needed to confirm that.

Thanks alot:)
06-25-14, 12:35 AM
Replies: 2
Views: 1,110
Posted By xchcui

Is it better to let the battery to rest before charging and after charging?

Hi every one.

I know that after discharge a li-ion battery,it is recommended to let it rest before charging it and,also,let it rest after charging it before use it.
Is it the same with lead acid...
06-18-14, 06:14 AM
Replies: 8
Views: 926
Posted By xchcui

Thanks,PJmax,for your help. I see that...

Thanks,PJmax,for your help.

I see that those smart chargers does not have,actually,normal behavior of absorption stage.
After the bulk stage,it seems that the charger get,immediately,into pulsed...
06-13-14, 05:18 AM
Replies: 8
Views: 926
Posted By xchcui

When you said"The charge voltage goes up to a set...

When you said"The charge voltage goes up to a set value and then is allowed to discharge."Do you mean that the charger done it rapidly as in my case?
And is it normal that the charge voltage(which...
06-12-14, 11:59 AM
Replies: 8
Views: 926
Posted By xchcui

I thought that only in the desulfation mode and...

I thought that only in the desulfation mode and in the maintainance mode the charger used the pulses,So, i understand that it uses pulses in all the stages.
Anyway,i didn't excpected to see on the...
06-12-14, 05:21 AM
Replies: 8
Views: 926
Posted By xchcui

Hi PJmax. There is no problem(as i checked...

Hi PJmax.

There is no problem(as i checked with the DMM)with the transfer between the charging stages and the time that passing between the stages.At the beginning the voltage increase up to 14.5V...
06-11-14, 12:56 PM
Replies: 8
Views: 926
Posted By xchcui

Is my new battery charger faulty?

Hi.

I have new 12v small battery charger,which designed to charge all the types of lead acid batteries(up to 70AH).
It has 4 stage:
1)recovery mode(desulfation mode)-uses pulse mode.
2)bulk...
05-30-14, 03:38 AM
Replies: 7
Views: 1,981
Posted By xchcui

Thanks,PJmax, for your links and as you can see...

Thanks,PJmax, for your links and as you can see there isn't any VRLA battery that is declared as it deep cycle battery.
But as you said,Any battery can be used in those toy cars.
So it is good...
05-29-14, 10:53 PM
05-27-14, 11:44 PM
Replies: 7
Views: 1,981
Posted By xchcui

:thumbup:OK. The good part is that i can...

:thumbup:OK.
The good part is that i can install in the toy car any kind of VRLA battery type,as you said.
But in order to understand the issue,since i haven't seen deep cycle VRLA yet(not in the...
05-26-14, 06:23 AM
Replies: 7
Views: 1,981
Posted By xchcui

Hi PJmax. My kid use to drive the electric...

Hi PJmax.

My kid use to drive the electric car until the battery is discharged.
I know that it is not good to discharge lead acid battery too much,even if it is deep cycle type,but this is the...
05-25-14, 07:38 AM
Replies: 7
Views: 1,981
Posted By xchcui

How to identify deep cycle VRLA battery from the information on the battery?

Hi.

How can i determine if 12v4.5AH VRLA type battery(GEL/AGM)is deep cycle battery or not?
I checked alot of vrla battery while i see the information about the capacity,the voltage,the charging...
Showing results 1 to 24 of 24


 
Forum Jump