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@@technowatercornervlogs. Good day sir, frequency is based on 2 factors. Engine RPM at yung number of poles ng alternator which is fixed. (Poles x RPM/ 120 = Hz) sa pinas 60hz tayo. Kung maliit yang genset kasi mostly 2poles kaya (2P x 3600rpm/120 =60hz) kung malaki naman usually nsa 4poles (4P x 1800rpm/1800 =60hz) pero meron din sa barko na brands such sa hyundai, taiyo, nishishiba is 8poles (8P x 900rpm/120 = 60hz. From these examples makita mo sir na yung poles ng windings fixed yan nde yan pwedeng mabago at yung 120 is given yan (time) kaya meaning if magbago Hz meaning mabagal or mabilis yung RPM ng prime mover (makina). I hope may natutunan ka sir dito. Thanks

Voltage output of AVR without load has different values based on brand and capacity. Some has only 6vdc & some has 15vdc @no load. Whats important to consider is that the Voltage output is proportional to the loading conditions. I hope this answers your question. Thanks

Sorry mate, but this was made specifically for Filipinos only, so fortunate that we can speak both tagalog and english. To those who appreciates my posting thanks alot. Cheers mate🍻

@@shuttlemarineengineering no worries. There are too few alternator function videos in English, very difficult to find.

Good PM sir, based sa informations mo sir. May probability na sira AVR, ask ko lang sir meron ba yan remote V adjustment sa switchboard? If meron need muna ma check if ok connection at nde open yung potentiometer, pwede din kasi mag cause ng high V ang AVR pag may open lines towards remote V adjustment at kung dun ka mag adjust wala din V reaction. Pero if ok naman yun at yun AVR wala naman fuse then I can confirm na AVR lang talaga issue nyan. Thanks

SX460 max input in 264V only and it’s receiving 360v and since this avr’s does not have fuses then your avr is probably gone. Check excitation V how high is it and from there you can confirm that you have a defective AVR. Damaged rotating diodes or burnt winding wont show a high voltage, instead it produces a very low V. Thanks

What is the brand and capacity of the alternator?

IT IS A CARD EQUAL TO THE STAMFORD, BUT UNIVERSAL. MY QUESTION IS: WHAT COMPONENT WAS DAMAGED TO THE CARD SO THAT IT DOES NOT REGULATE THE OUTPUT AND IS AT MAXIMUM RANGE

@@teloexplicaeldiamante2855 Hard to know which electronic component gave up, but based on your info’s it’s on the regulation circuitry. But if fitted with remote V adjustment is suggest you check if it’s open or if connection from potentiometer to avr if not broken or loose. A loose remote V potentiometer also causes high V output. If no remote then AVR is defective. Thanks

What is the alternator output V rating and check nameplate what is the excitation V. From there it can easily be determined what brand and type of AVR can be used. Thanks

Ano brand sir?

Yes, it must be connected to the stator winding for sensing purposes and output to exciter field. Thanks

Good day, you cant set the rated V or it will not sustain the V once genset take the electrical load. AVR, A acronym stands for Automatic, then AVR should react to whatever loading conditions, if its defective then V will not be sustained and therefore produces a high current that will either trip the breaker or burn windings or blew up diode/s in the rotation diodes. Hope this answers your question. Thanks

Important is the AVR will match the excitation voltage & current of the winding field. So check the alternator nameplate if it mentions about the excitation V & I, your AVR output must be higher than those values otherwise it will damage your AVR. Thanks

Kindly email us at perl.shuttlemarine@gmail.com and we’ll coordinate with you accordingly. thanks

Good day, based sa info na AC input available but no DC output is a defective AVR. Thanks

Pwede yan sir aslong as not too huge capacity difference, important to note na they should have the same hz and exactly the same V at whatever loading %. Thanks

Need to check ilan excitation coil resistance para malaman if pwede dyan at kung yan bang genset nde ginagamit on load sharing. Thanks

It really depends on the engine shutdown protection naka install sa system. But based sa info mo sir, low Hz means mabagal andar ng prime mover kya low L-L and L-N din yan definitely. Check na lang ano issue sa governor, fuel lines or other mechanical parts that is causing the RPM nd ema meet rated. If its 4poles yan 1800rpm Im assuming 4 poles windings. Thanks

me, too

Me too

Definitely wala yan sa AVR, since nsa RPM problema check mechanical side or check speed controls and other related electrical protections. Thanks

Initially need to check prime mover, kasi mababa rpm and this will result to low V aswell. Thanks

Good day sir, yung mindong genset kasi basically brush type and walang exciter field and exciter rotor. Yung output ng stator na U-V-W dun din kukuha ng voltage input yun GB170 na avr, make sure tama yan, yun naman feed sa main field dadaan lang sa trio bridge diodes pra yung 3phase AC from a separate coil group ng stator papunta na main field maging DC volts, pero yung 1 line from stator daan muna sa avr terminals labels Z - Z pra ma regulate yun DC na feed sa main field. Kung maka download ka ng PDF ng manual then balikan mo itong explanation na ito mas maintindihan mo yan. I hope makatulong sa iyo sir. Stay safe