Generators... How, where, how much?

[Retz]

^

Sir boybi, ano ba HP ng aircon mo?

[CVT]

Ilan aircon ba ang kaya ng 22kva? May 1hp pa na water pump and refrigerators. Plus mga ilaw.

Bro.,- 1HP=746W- for simplicity.- let's put it at 1KW or 1KVA - so for every 1HP comprehending starting current (x3)- plan for 3KVA capacity.

So, for your factor of safety for motors with huge starting current,- then your 22KVA can support 7HP total, probably more, but you can experiment and monitor, as this is on the very safe side... Lighting,- not much load so this is your extra 1KVA.....(22/3 = 7 remainder of 1)

19.4K:tomato:

[boybi]

Thanks CVT.

Yung 1hp na water pump pala nasa ibang phase na ng genset separate from the house. So aircon, lighting and ref nalang nasa bahay.

[CVT]

Thanks CVT.

Yung 1hp na water pump pala nasa ibang phase na ng genset separate from the house. So aircon, lighting and ref nalang nasa bahay.

Just be sure bro, that your water pump is TOTALLY ISOLATED from your other circuits... Else, delikado na mag-overvoltage ang mga iyan at sumabog....

19.4K:tomato:

[boybi]

What do you mean by totally isolated? May sarili lang syang breaker switch, ok na ba ito?

[CVT]

What do you mean by totally isolated? May sarili lang syang breaker switch, ok na ba ito?

It means that it does not have a common line with your house. Because if it has, then you are essentially feeding 2 sinusoidal waves for everything.... It will be a disaster.

Dapat, ang iyong water pump is directly connected ONLY to your generator's (2nd) phase....

Yes, it has its own circuit breaker, but how do you connect? And how is the connection, relative to your house's circuit?- Dapat magkahiwalay sila, bro.

19.4K:tomato:

[boybi]

It means that it does not have a common line with your house. Because if it has, then you are essentially feeding 2 sinusoidal waves for everything.... It will be a disaster.

Dapat, ang iyong water pump is directly connected ONLY to your generator's (2nd) phase....

Yes, it has its own circuit breaker, but how do you connect? And how is the connection, relative to your house's circuit?- Dapat magkahiwalay sila, bro.

19.4K:tomato:

From the utility, same circuit lang yung water pump with the house.

From the genset, mag kaiba ng phase yung pump sa house.

[brainmafia_310]

Bro.,- 1HP=746W- for simplicity.- let's put it at 1KW or 1KVA - so for every 1HP comprehending starting current (x3)- plan for 3KVA capacity.

So, for your factor of safety for motors with huge starting current,- then your 22KVA can support 7HP total, probably more, but you can experiment and monitor, as this is on the very safe side... Lighting,- not much load so this is your extra 1KVA.....(22/3 = 7 remainder of 1)

19.4K:tomato:

Kung gusto mo sir na mamaximize ung 22kva genset mo sir palitan mo ac mo ng inverter type. 1:1 na ang computation nun at no starting current. Pero pagkakaalam ko ang starting current ng single phase equipment is similar lang the Full Load Ampere (FLA) sa 3phase lang ung times 3.

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[brainmafia_310]

**sir boybi pala. Kung 22kva genset mo why dont you consider installing ats, may sensing line na ganyang kalaking genset sir. Auto on and auto off na iyan. Bilis pa ng ramp up nyan around 3seconds lang on the 4th may ilaw ka na. By the way, dapat ang connection from main breaker nahati sa dalawa pang sub main, isa para sa lighting at isa para sa outlet at equipment (pwde na to since single phase naman) tpos sanilalim ng sub breaker ng pang eq at outlet may breaker ka para sa motor, ac, ref and etc. Iba iba din breaker ng isang 20a circuit na 2gang outlet. Imho sa main mo na din ikabit ung line for genset for simplicity ikaw na lang magtimple manually ng load kung lalagpas pa sa 22kva ung bahay mo, pero sa tingin ko di mo na mamamaximize yan unles bubuhayin mo lahat at pati lahat ng outlet may nakasaksak na 20a load. Hehehehhe.

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[glenn manikis]

From the utility, same circuit lang yung water pump with the house.

From the genset, mag kaiba ng phase yung pump sa house.

sir boybi ano po bang brand and model ng genset nyo?

[boybi]

Kung gusto mo sir na mamaximize ung 22kva genset mo sir palitan mo ac mo ng inverter type. 1:1 na ang computation nun at no starting current. Pero pagkakaalam ko ang starting current ng single phase equipment is similar lang the Full Load Ampere (FLA) sa 3phase lang ung times 3.

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45kva 3phase genset ko.

[boybi]

**sir boybi pala. Kung 22kva genset mo why dont you consider installing ats, may sensing line na ganyang kalaking genset sir. Auto on and auto off na iyan. Bilis pa ng ramp up nyan around 3seconds lang on the 4th may ilaw ka na. By the way, dapat ang connection from main breaker nahati sa dalawa pang sub main, isa para sa lighting at isa para sa outlet at equipment (pwde na to since single phase naman) tpos sanilalim ng sub breaker ng pang eq at outlet may breaker ka para sa motor, ac, ref and etc. Iba iba din breaker ng isang 20a circuit na 2gang outlet. Imho sa main mo na din ikabit ung line for genset for simplicity ikaw na lang magtimple manually ng load kung lalagpas pa sa 22kva ung bahay mo, pero sa tingin ko di mo na mamamaximize yan unles bubuhayin mo lahat at pati lahat ng outlet may nakasaksak na 20a load. Hehehehhe.

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Hirap kasi sa ats kapag nagka voltage drop, lipat agad sa genset.

Ayaw ko ng galawin main breaker. Kakatapos lang renovation ng bahay ko last year, ayoko nang magwasak pa ulit ng pader.

[boybi]

sir boybi ano po bang brand and model ng genset nyo?

Cummins na made in china. Sa auction ko lang nabili. Akala ko original na cummins, china lang pala. Hindi ko kasi tinignan yung unit bago ko pina-bid. Brand new kasi nakalagay kaya pina bid ko

[Retz]

^

ung engine cummins pero ung alternator china or ibang brand yan.

[brainmafia_310]

45kva 3phase genset ko.

Pero malamang 220v na single phasr na ang labas nyan, right?

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[boybi]

Pero malamang 220v na single phasr na ang labas nyan, right?

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3 phase sya.

[vinj]

45kva 3phase genset ko.

Para sa kwarto ni Boybi pa lang yan. :D

[boybi]

Para sa kwarto ni Boybi pa lang yan. :D

Hahaha, may snow kasi sa loob ng kwarto.

[Retz]

ung mga 50Hz na genset pwede ba gamitin sa atin dito na 60Hz?

[glenn manikis]

Cummins na made in china. Sa auction ko lang nabili. Akala ko original na cummins, china lang pala. Hindi ko kasi tinignan yung unit bago ko pina-bid. Brand new kasi nakalagay kaya pina bid ko

ask ko lang magkano kuha nyo sir?