आवश्यकताएं (Requirements)
1. UPS
क्रियाविधि (Procedure)
| S. No. | Specification | 5 KVA UPS System | 10 KVAUPS System |
| 1 | Type | Microprocessor controlled | |
| 2 | Capacity | 5KVA//4000 Watt or better | 10 KVA//8000 Watt or better |
| 3 | Charging style | Boost & Float trickle | |
| 4 | Input voltage range | 160-270 VAC, Single phase | 350-460 VAC, Three phase |
| 5 | Input frequency range | 45 to 60 Hz | |
| 6 | Input power factor | 0.98 or better | |
| 7 | Output voltage to load | 230 VAC | |
| 8 | Output power factor | 0.9 or better | |
| 9 | Voltage regulation | ± 1% | |
| 10 | Output frequency | 47.53 Hz | |
| 11 | Current crest ratio | 3:1 | |
| 12 | Total harmonic distortion | Within 3% for linear loads & 6% for non-linear loads | |
| 13 | AC mode to battery mode | Bump less transfer | |
| 14 | Inverter to bypass transfer | 5ms or better | |
| 15 | Waveform shape | Pure Sinewave | |
| 16 | Efficiency in AC mode | 90% or better | |
| 17 | Efficiency in Battery mode | 90 % or better | |
| 18 | Overload sustaining capability | shall be able to sustain for at least 60 seconds in case of 125% load without abnormal behaviour | |
| 19 | Battery Charging Current | Shall be capable of charging the fully drained battery in around 12 hours | Shall be capable of charging the fully drained battery in around 16 hours |
| 20 | Battery Charging Voltage | Suitable for battery bank of up to 192 V, 120 AH | Suitable for battery bank of 30 or 32 nos. (12 V 120 Ah Batteries) |
| 21 | Display | UPS shall preferably have Multi Line LCD display which shall show various status parameters of the system | |
| 22 | Audio indications | The UPS shall give distict audio signals/ alarms for battery mode, low battery & other faults | |
| 23 | Ambiant Conditions | Upto 40 @ 95% RH | |
| 24 | Cooling | Fans shall be available for internal heat dissipation of UPS | |
| 25 | Protection | Protection against short circuit, Overload, Low input voltage, Surge in input voltage as per UL 1449, over heat in the UPS, etc shall be available | |
| 26 | Warranty | 2 Years or more | |
सावधानियां (Precautions)
1. सभी विनिर्देशों का ध्यानपूर्वक अध्यनन करें।
2. संदेह की स्थिति में अनुदेशक महोदय से सम्पर्क कर उन्हें समझने का प्रयास करें।
परिणाम (Result)
इस प्रयोग में हमने UPS के विनिर्देशों को पहचानना सीखा।