Technology 
| UPS technology |
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- Provide optimized power at high efficiency rate
- Offer solutions to proved up to 99.999% availability
- Provide THD performance
ASP QUALIFICATION PROCESS
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UPS technology |
| Trends - UPS technology |
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(1) Optimized power
- Server/computer load are increasingly demanding more active power - high input Power Factor (PF)
(2) High efficiency
- Operating cost of UPS is important
(3) 99.999% availability
- Business continuity is supported by the availability of 7/24 power.
(4) THD
- UPS must not affect other consumers in the utility side or cause oversizing of gensets.
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Trends - UPS technology |
| Load power factor vs. UPS rating |
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| Let’s study three 100kVA UPS’s with 3 different output p.f. rating and try to size the acceptable IT load based on kW |
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| UPS |
A |
B |
C |
| utput p.f. |
0.9 |
0.8 |
1.0 |
| rated output kVA/kW |
100/90 |
100/80 |
100/100 |
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| Can the UPS |
YES |
NO |
YES |
| supply if the load |
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short of |
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| is 90 kW ? |
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kW |
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| f load is 90 kW, p.f. 0.9 the needed current is based on apparent load of 90 kW / 0.9= 100 kVA |
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| A and C type of UPS can supply the same load! |
| Output pf. 0.9 should be requested from UPS suppliers! |
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| Savings calculation |
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Example, 8% better efficiency at 9 kW load:
8%*9kW*24h*365d = 6307 kW/h per year
Electricity cost:
6 Rupee / 1 kWh in India
Savings in electricity:
6*6307 = 37842 Rupee per year
+ 20% electric bill for air cooling/ventilation
>> Total savings Rs. 45,410 per year <<
Or Rs. 2,27,052 in 5 years.
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Savings calculation
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