Generator sets

[edmasbate]

need ko 5000 watts capacity

[boybi]

What genset capacity should I get to power the following:

2 2.5hp split type A/C
1 1.5hp split type A/C
2 1.5hp window type A/C
1 1.0hp split type A/C
3 TV sets
3 refs
2 units hot/cold water dispenser
1 3200W water heater
at least 40pcs 18W CFLs

[uls]

What genset capacity should I get to power the following:

2 2.5hp split type A/C
1 1.5hp split type A/C
2 1.5hp window type A/C
1 1.0hp split type A/C
3 TV sets
3 refs
2 units hot/cold water dispenser
1 3200W water heater
at least 40pcs 18W CFLs

mga 60KVA

meron kami 60KVA

Denyo brand, Japan surplus

[ghost recon]

masyado malaki yong 60kva for that particular load.

base on my computation (maximizing those without no given wattage), its only 30kva.

hope this help.

[uls]

even if the load is 30KVA, you don't buy a 30KVA generator

you buy least 40KVA

but i think 40KVA is still too small for that load

better to have headroom than overload a smaller generator

it's very expensive to repair a generator that burned out due to overload

[boybi]

How much would a 40KVA and a 60KVA genset cost? Meron ba yung hindi maingay? I'm going to place the genset beside the quarters of our workers para may bantay.

[uls]

How much would a 40KVA and a 60KVA genset cost? Meron ba yung hindi maingay? I'm going to place the genset beside the quarters of our workers para may bantay.

sir boybi, i sent you PM

[ghost recon]

even if the load is 30KVA, you don't buy a 30KVA generator

you buy least 40KVA

but i think 40KVA is still too small for that load

better to have headroom than overload a smaller generator

it's very expensive to repair a generator that burned out due to overload

how can an overload happens when the total connected load is given and i based my computaion on that? plus there is what we call usage factor. what i'm giving is 95 percent efficiency usage. that means you are not throwing money for unused energy produced by your generator. am i right or wrong?

[ghost recon]

if you throw in 40kva, the efficiency will become 70 percent. throw in 60 and the efficiency will become 50 percent. can you see now the wasted money?

[bmacavanza]

50% load of the rated capacity of the genset.

[uls]

dude, thanks for lecture

i'm not gonna argue with you

i'm speaking from real world experience

we've been selling generators for years

we recommend customers buy generators bigger than their load

we've had customers who underestimated their load and burned out their generators

cost them a lot of money to repair

customers could increase load in the future

so it's always good to have spare capacity

i'm sure boybi's decision won't be based alone on answers he got from you or me

he can hire an electrician to inspect his home/business and compute load

he's a smart, successful businessman

he's not gonna make a wrong decision and waste money

don't be so concerned about boybi wasting money

he won't

[lazyfoot]

Agree, get one with at least 2x the projected load.

[ghost recon]

Agree, get one with at least 2x the projected load.

hahaha. ok so the readers will know not by assumption, here's the computation.

since all of boybi's load are pure resistive, then boybi has an inductive load. and since most of it comprises motors then i will put a conservative number for power factor of 0.86

total connected loads is around 28000 watts.
total power factor 0.86

therefore; kva=watts/1000 x power factor
= 28000/1000 x 0.86
= 32.5 kva

and that is full load. if we apply 80 percent utilization then,

our kva (new) = 32.5 x 0.8
= 26 kva

that's is why i say 30kva is enough.

one most important thing. do not buy chinese brand. the cables and cores were mostly made of inferior materials like aluminum not copper. and when the generator heats up this materials will deteriorate faster. this is the reason why chinese will advise the buyers to buy the next higher because they know their product won't last long.

by the way, i don't care if others burn their money. its not mine and i don't care hehehe. this is for the readers. buyers who will opt to choose chinese brands, better add 10 kva to compensate the heat loss.

again hope this help.

[uls]

i'm offering boybi japan surplus denyo generators

DCA60SPI, DCA45SPI

not china generators

[uls]

+++++++++++++++++++++++

[LPGasboy]

i'm offering boybi japan surplus denyo generators

DCA60SPI, DCA45SPI

not china generators

Hi, kaya na ba ang 40KVA for a gas station with 4 dispensers? kahit 2 lang papaganahin during brownout, n how much? thanks

[CVT]

I am sure that these are diesel-fed....

Iyong mga gasoline-powered generators,- malamang hindi ito e10-compatible....

Isn't there a breaker on generators to protect it from current overload?...

9505:spam:

[uls]

i usually ask electrical people that question

baket hindi nag trip yung breaker when the customer overloaded the genset?

if the overload is not a sudden spike, the breaker doesnt trip

unlike pag short circuit, the breaker will trip agad

a constant near peak load or over-peak load that doesnt short circuit doesnt trip the breaker

it just puts a lot of stress on the dynamo and burns out the dynamo over time

[Slyfox168]

mga 60KVA

meron kami 60KVA

Denyo brand, Japan surplus

''


how much?

[2slow]

Tanong ko lang yung mga open type na gas generators pwede ba ito lagyan ng silent mufflers? WILL this not affect the generators performance? Pansin ko kasi these type of generators doesnt have an exhaust muffler