WEG UR11 Series, Руководство пользователя

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Installation and Connection
3
UR11 | 3-1
3 INSTALLATION AND CONNECTION
This chapter provides information on installing and wiring the UR11. The instructions and guidelines listed in
this manual shall be followed in order to guarantee personnel and equipment safety, as well as the proper
operation of the rectifier.
3.1 ENVIRONMENTAL CONDITIONS
Avoid installing the UR11 in an area with:
Direct exposure to sunlight, rain, high humidity, or sea-air.
Inflammable or corrosive gases or liquids.
Excessive vibration.
Dust, metallic particles, and oil mist.
Environment conditions for the operation:
Temperature: -10 °C to 45 °C (14 °F to 113 °F) - nominal conditions (measured around the rectifier).
From 45 °C to 55 °C (113 °F to 131°F) - 2 % current derating for each Celsius degree.
Air relative humidity: from 5 % to 90 % non-condensing.
Altitude: up to 1000 m (3.300 ft) - standard conditions.
From 1000 m to 4000 m (3.300 ft to 13.200 ft) - 1 % of current derating for each 100 m (or 0.3 % each
100 ft) above 1000 m (3.300 ft) up to 4000 m (13.200 ft) maximum altitude.
From 2000 m to 4000 m (6.600 ft to 13.200 ft) - 1,1 % of maximum voltage derating for each 100 m (or
0.33 % each 100 ft) above 2000 m (6.600 ft) up to 4000 m (13.200 ft) maximum altitude.
Pollution degree: 2 (according to EN50178 and UL508C) with non-conductive pollution. Condensation
shall not originate conduction through the accumulated residues.
3.2 LIST OF COMPONENTS
The UR11 rectifier was developed to perform the rectification of the incoming three-phase power supply and
provide the proper DC link voltage to the CFW-11M line. It replaces the pre-charge circuit and the line reactor
(or the interphase reactor when the 12 pulse configuration is required). It is possible to add rectifier units in
parallel for applications that demand higher currents than the rated current of one rectifier unit (see
Table 3.1
on page 3-2 to Table 3.3 on page 3-2 ).