Annexure-1

Technical Specifications of 2X20KVA UPS System

Sl No. / Description / Specification / Compliance
YES/NO
INPUT:
1. / Three Phase Voltage / 415 VAC+ / -15% (353-477V)
2. / Supply Frequency / 45 to 55 Hz.
3. / Input Power Factor / 0.95 or better
4. / Rectifier Type / IGBT with PWM
5. / Power Walk-in / 0-120 Sec (settable)
BY-PASS LINE
6. / Three Phase Voltage / 415 VAC+ / -15% (353-477V)
7. / Over load capacity for 1 min. / 200%
8. / Over load capacity for 10 min / 125%
9. / Static Bypass : / Shall be Inbuilt
10. / Manual Bypass: / Shallbe Inbuilt
OUTPUT
11. / Voltage Three Phase 4-wire / Normally 415VAC.
Provision for selecting 380 or 400 V also shall be available
12. / Voltage Stability / + 1% Static, + 5% dynamic
13. / Wave Form / Sinusoidal with THD = or <5%
14. / Frequency / 50 Hz
15. / Frequency Stability / + 0.05
16. / Frequency Slew Rate: / 1 Hz/sec
17. / Crest factor / 3:1
18. / Output Power Factor / 0.9
19. / Power in KVA / 20KVA
20. / Power in KW / 18 KW
21. / Inverter Type / IGBT Based with PWM Controlled
22. / Voltage Recovery time / Shall be better than + 1% within 20 msec
23. / Output Voltage Stability / Linear Load - +/- 1%
Dynamic Load - +/- 3%
24. / Overload capability / i)UPS@125%: To withstand for at least 10 minutes before going to Bypass.
ii)UPS@150%: To withstand for at least 1 minbefore going to Bypass.
25. / Short circuit Current withstanding capability / i)Phase to Phase: 180% for 1 Sec
iii)Phase to neutral: 300% for 1 Sec
ISOLATION
26. / UPS OUTPUT / Built in Galvanic Isolation at UPS Output shall be available with clear isolation of Input Neutral from Output Neutral
SYSTEM
27. / Total Efficiency of the UPS / 92% or better from 50% to 100% of load
28. / Operating temperature & Humidity / Temp: 0-40˚C RH: 0-95% non condensing
BATTERY
29. / Type of batteries / Battery Banks consisting of Sealed Maintenance Free (SMF)12VGEL Batteries
30. / Back up time / 30 minutes back up for 20 KVA load with each 20KVA UPS(2 X 30minutes for each parallel redundant system)
BATTERY STANDS
31. / Battery Stands / Custom made Powder coated MS Stands suitable for site conditions and as suggested by department shall be supplied. (No two stands may match with other set of stands)
32. / UPS Make / APC, MG, EMERSON, PILLER, RIELLO/AROS, GE
33. / Battery Make / ADVA, Sonnenschein, Rocket, Amara Raja, Panasonic, Exide
CONTROL& MONITORING
34. / Indications
Alarms: / Mains Failure
UPS Fault
Battery Discharged
Inverter OFF/Failed
Rectifier OFF/Failed
Over Temperature
Overload
Emergency Stop
35. / Display of Parameters: / Input Voltage
Input Current per Phase
Input Frequency
Bypass input Voltage
Bypass Input Frequency
Inverter Output Voltage
Inverter output Current per phase
Inverter output in KVA and KW
Battery Voltage
Battery Charging Voltage
Battery Discharging Voltage
Battery autonomy
Rectifier Temperature
Inverter temperature
Overall System temperature
36. / PROTECTIONS / Input Voltage Low
Input Voltage High
Output Voltage Low
Output Voltage High
Battery Over Charging
Battery over discharging
Overload
Short Circuit
37. / Total Harmonic Distortion(THD) (%): / <= 5%
38. / Input Current Harmonic Distortion (%) / Full Load -=4%
75% load - <=4%
25-50% load - <=6%
39. / Output Voltage Distortion(%) / with linear Load - <=1%
with nonlinear Load - <=3%
40. / Event Recording Facility: / Shall have Inbuilt event recording facility upto a minimum of 100events which can be accessed from front panel.
41. / Ethernet connectivity(SNMP) / UPS Systems shall be provided with Ethernet connectivity to access through remote computer over intranet/internet.
42. / Paralleling modules / Each UPS shall be fitted with paralleling module(card) to ensure the paralleling of UPS systems.
43. / UPS & Battery (per battery) Dimensions: / Supplier has to provide dimensions of the proposed systems & battery
44. / Input Phase Reversal Correction / Supplier has to Specify Inbuilt / external
45. / Software & Hardware for remote monitoring & control / Software if any with license for interfacing to a remote PC. Any other hardware modules required to be added to the UPS shall be supplied by vendor as a part of proposed UPS
However, PC will be provided by NRSC/user of UPS.