Question
Download Solution PDF_______ is the Input voltage Specification of a UPS. Choose from the given option
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFThe correct answer is option 2.
The allowable regulation is ± 3% for frequency.
Operating frequency = 50 ± (3% of 50)
Operating frequency = 48.5 to 51.5 Hz
The allowable regulation is ± 5% for voltage.
Operating frequency = 220 ± (5% of 220)
Operating frequency = 209 to 231 V
UPS output specification
|
Parameters |
Values |
|
Voltage |
220 V, 1ϕ AC |
|
Frequency |
50 Hz |
|
Regulation |
± 3% for frequency ± 5% for voltage |
|
Waveform |
Sine wave |
|
Power factor |
0.8 lag to unity |
|
Overload capacity |
125% for 10 min 150% for 1 min |
|
Changeover time |
6-12 ms |
|
Efficiency |
> 85% |
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