OPTI-UPS MD120L - Manual (Page 107)

50 Chapter 5 Maintenance
50
7.7 Electrical Characteristics(Bypass Mains Input)
Table 7-7 Bypass Mains Input
Rated
capacity(kVA)
Unit 60 90 100 120 150 200
Rated AC
Voltage 1
Vac
380/400/415
three-phase four-wire, sharing neutral with the rectifier input and
providing neutral reference for the output
Rated current A
91@380V
87@400V
83@415V
136@380
V
130@400
V
124@415
V
151@380
V
144@400
V
138@415
V
182@380
V
174@400
V
166@415
V
227@380
V
216@400
V
207@415
V
302@380
V
288@400
V
276@415
V
Overload ％
125％ load, long term
130％ load, 1 hour
150％ load, 6min
1000％ load, 100ms
Superior
protection
bypass line
N/A
Thermal-magnetic breaker, the capacity is 125％ of rated current output.
IEC60947-2 curve C
Current rating
of neutral cable
A 1.7×In
Frequency 2 Hz 50/60
Switch time
(between
bypass and
inverter)
ms Synchronized switch: ≤1ms
Bypass voltage
tolerance
％Vac
Upper limit: ＋10,＋15or＋20, default: ＋20
Lower limit: －10, －20, －30 or－40, default:－20
(acceptable stable bypass voltage delay: 10s)
Bypass
frequency
tolerance
％ ±2.5, ±5, ±10 or ±20, default: ±10
Synchronizatio
n-Window
Hz Rated frequency±2Hz (selectable from ±0.5Hz～±5Hz)
Note:
1. Factory setting is 400V. Commissioning engineers can set to 380V or 415V.
2. Factory setting is 50Hz. Commissioning engineers can set to 60Hz. For example, UPS is set to
frequency inverter mode, and then bypass status will be neglected.
7.8 Efficiency
Table 7-8 Efficiency, Loss and Air Exchange
Rated Efficiency (kVA) Unit 10～200kVA
Efficiency
Normal mode(dual conversion) ％ 95
ECO mode ％ 99
Battery discharging efficiency (DC/AC) (battery at nominal voltage 480Vdc and full-rated linear load)
battery mode ％ 95