Benefits of upgrading to a high ampere alternator (65 - 95)?

[Red Advent 04]

kapag nag taas ng amperahe baga hindi nga kaya maapektuhan yung iba gaya halimbawa yung regulator, starter, baterya. oke lang ba yun at kung kinakailangan pa nga mag taas o mag palaki din ng kable para sa koryente.

[12vdc]

Electricity 101 guys..

I=V/R

Where,
I = current (volume of electrons per unit area) unit Ampere
V = Voltage (electric pressure) unit Volts
R = Resistance (Load & Losses) unit Ohms


Take the analogy of water and electricity...

alternator = water tank (source of electricity/ water)
wires = water pipes (the larger the higher flow-rate capacity, from source to sink)
electrical load/ accessories = water taps

Now, on the scenario of upgrading alternator or water tank on a stock load..

Alternator:
I = higher capacity
V = same
R = same

Water tank (upgraded by horizontal expansion same height):
I = higher capacity
V = same pressure per unit area
R = same restriction on same size of pipes

Going back to the original question, then the answer is no benefit at all.. but, you will have extra weight because of larger alternator components used. You will benefit only when you are putting extra larger loads like fogs, horns, sound system, motor for winch, pump, etc..

[Retz]

Mdyo ot lang... Sa genset may alternator at may katumbas na engine. Either kung mas malaki ung alternator or mas maliit compared sa rating ng engine ay wala din mangyayari if you dont change or upgrade your engine. What i mean is hindi ba match dapat alternator sa size ng engine? Mas malaki nga alternator mo pero ung engine mo could only give this much. Just an analogy.


Posted via Tsikot Mobile App

[s10pao]

Mdyo ot lang... Sa genset may alternator at may katumbas na engine. Either kung mas malaki ung alternator or mas maliit compared sa rating ng engine ay wala din mangyayari if you dont change or upgrade your engine. What i mean is hindi ba match dapat alternator sa size ng engine? Mas malaki nga alternator mo pero ung engine mo could only give this much. Just an analogy.


Posted via Tsikot Mobile App

ung additional load dahil sa malaking alternator kaya pa rin i-offset nung engine.

[12vdc]

Mdyo ot lang... Sa genset may alternator at may katumbas na engine. Either kung mas malaki ung alternator or mas maliit compared sa rating ng engine ay wala din mangyayari if you dont change or upgrade your engine. What i mean is hindi ba match dapat alternator sa size ng engine? Mas malaki nga alternator mo pero ung engine mo could only give this much. Just an analogy.


Posted via Tsikot Mobile App

Or in other words..

Sa konstant load, ang resistance ng generator sa engine kung na upgrade ay lesser. Kung lumiit(downgrade) naman, ang engine ay overworked or overload condition.

Depende sa load. Bakit ka maglalagay ng 200Kva na generator na 20KvA lang ang konstant load.. Waste of energy to rotate the huge generator.

[jhnkvn]

Mdyo ot lang... Sa genset may alternator at may katumbas na engine. Either kung mas malaki ung alternator or mas maliit compared sa rating ng engine ay wala din mangyayari if you dont change or upgrade your engine. What i mean is hindi ba match dapat alternator sa size ng engine? Mas malaki nga alternator mo pero ung engine mo could only give this much. Just an analogy.

For all other purposes, yes. Since you try to mate the output with how much load you throw at it. It's kinda useless to have an alternator capable of 300A when you can only generate 30A of power. That's like feeding your car's engine with a fuel running up a Zesto straw.

However, this is not a problem in a car since your car's internal combustion engine can output so much horsepower. If you want to do it at a very simplistic view, 150A * 12V = 1,800W = 2.41 horsepower -- a minute amount on how much horsepower you generate at a given engine RPM.

This is why the people who set up their sound setup extensively (aka me) sees reduced fuel efficiency. One is that an ICE system will take up weight inside your car and second it makes your alternator demand more power depending on load. This is why overall, I suffer a rough -1km/L automatically on my day-to-day travels.

[red_one]

Mdyo ot lang... Sa genset may alternator at may katumbas na engine. Either kung mas malaki ung alternator or mas maliit compared sa rating ng engine ay wala din mangyayari if you dont change or upgrade your engine. What i mean is hindi ba match dapat alternator sa size ng engine? Mas malaki nga alternator mo pero ung engine mo could only give this much. Just an analogy.

Not really. Alternators produce AC power through electromagnetism formed through the stator and rotor relationship. It has no relation to actual engine power output. That's why you can put a higher output alternator in your vehicle with same engine. Example, if you add amplifiers, subwoofers, speakers, etc that requires more power, you can simply upgrade the alternator and not change engine.

[s10pao]

Not really. Alternators produce AC power through electromagnetism formed through the stator and rotor relationship. It has no relation to actual engine power output.

san mo naman nakuha yang info na yan?
ano exactly ung "stator and rotor relationship" na sinasabi mo?
ano ba ang kailangan baguhin sa alternator para tumaas ang output current nya?

[confused shoes]

Unless you want to install a bigger battery then it's a waste of money.

[red_one]

san mo naman nakuha yang info na yan?
ano exactly ung "stator and rotor relationship" na sinasabi mo?
ano ba ang kailangan baguhin sa alternator para tumaas ang output current nya?

dito brod.. How Alternators Work? HowStuffWorks "What Is an Alternator?"