Liebert UPS System - Manual (Page 117)

Chapter 9 Optional Parts
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9.7.3 Using and Maintenance
1. Ambient condition
a. Ambient temperature ranges from -40℃ to 40℃;
b. Elevation lower than 1000m;
c. The utility frequency is 45～65Hz;
d. The highest wind speed not exceed 35m/s.
2. Maintenance
1) The lightning protection device operates normally if the green indicator
illuminates while the red indicator is off;
2) If the green indicator is off while the red indicator illuminates, that means the
circuit breaker is switched off. If the circuit breaker is not switched off manually,
please check the varistor. The lightning protection device is damaged if the
varistor turns into red. At this time the device must be replaced;
3) If the green indicator and the red one are all off, that means the lightning
protection device is damaged, please notify our service engineers for repairing;
4) If the PE cables must be disconnected due to certain reason, please switch off
the lightning protection device first to let the device de-energized. Be sure to
confirm that whether the neutral cable has hazard voltage;
5) Please refer to Using Directions of SPD24Z for details.
9.8 Bypass Isolation Transformer
Specifications:
Input voltage: 380/400/415V, three phases;
Output voltage: 380/400/415V, three phases;
Rated frequency: 50Hz;
Rated capacity: 20/30/40/60kVA
Insulation level: F;
Wiring: Y/Y