Backup Generators
04 February 2006, 06:29 PM
#2
Scooby Regular
A few questions for you.
How much power are all your devices using, if added together in watts?
IE: an average PC and monitor is about 200w (approx) servers need more.
Your total Kws will determine what size generator you need
Secondly how long do you want these to be able to run for?
Bigger tanks require extra funds.
Do you require uninteruppted power supplies, as this will require some battery backup? Diesel/ga generators have to start up before they produce electricity. Typically this is 3 seconds, so mains power off, generator boots and then power from generator.
If you have any question i'll do my best to answer them.
mike
How much power are all your devices using, if added together in watts?
IE: an average PC and monitor is about 200w (approx) servers need more.
Your total Kws will determine what size generator you need
Secondly how long do you want these to be able to run for?
Bigger tanks require extra funds.
Do you require uninteruppted power supplies, as this will require some battery backup? Diesel/ga generators have to start up before they produce electricity. Typically this is 3 seconds, so mains power off, generator boots and then power from generator.
If you have any question i'll do my best to answer them.
mike
04 February 2006, 06:40 PM
#3
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Location: Leeds - It was 562.4bhp@28psi on Optimax, How much closer to 600 with race fuel and a bigger turbo?
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You need to be very carefull when designing stuff like this as You CANNOT connect it in parallel without having the 'electric company' design it.. and you cant afford that!.
What do you want to know, as my Dad is an Electrical Design Consultant and does a fair bit of this.
Normally for hospitals and slightly larger scale! But he knows alot about it..
When you say 40 users, Id guess you mean the whole company?
What switchgear do you currently have?
3 Phase or Single?
From what I can remember from a while ago, the best bet would be stick a hardwired UPS in your comms room before the comms room DIS board. Assuming this is the only room that needs an 'essential supply'
I would then suggest at your main disboard you have a manual changeover switch (It must be fitted with interlocks)
As above you need to know what load you have and what voltage.
We needed around 300A per comms room just for the servers, and probably nearly the same for the Aircon so as you can imagine our generator wasnt small! (It also ran the rest of the building 1200+ computers & HVAC)
Also what budget?
Id budget at over £15 - 20k Minimum.
Drop me a mail if you have any questions.
David
What do you want to know, as my Dad is an Electrical Design Consultant and does a fair bit of this.
Normally for hospitals and slightly larger scale! But he knows alot about it..
When you say 40 users, Id guess you mean the whole company?
What switchgear do you currently have?
3 Phase or Single?
From what I can remember from a while ago, the best bet would be stick a hardwired UPS in your comms room before the comms room DIS board. Assuming this is the only room that needs an 'essential supply'
I would then suggest at your main disboard you have a manual changeover switch (It must be fitted with interlocks)
As above you need to know what load you have and what voltage.
We needed around 300A per comms room just for the servers, and probably nearly the same for the Aircon so as you can imagine our generator wasnt small! (It also ran the rest of the building 1200+ computers & HVAC)
Also what budget?
Id budget at over £15 - 20k Minimum.
Drop me a mail if you have any questions.
David
04 February 2006, 08:49 PM
#4
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Join Date: Jul 2005
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Alternitvly get two old pushbikes and conect the dynamo,s to the main feed, hire two fresh yts trainee,s as trouble shooters, and get them to peddle like billy in the event of a powercut, of course there only paid if you dont loose any data
cost £25 for the bikes
Mart
cost £25 for the bikes
Mart
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