Nautel NX5 AM, Руководство по предварительной установке

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NX5 PRE-INSTALLATION MANUAL ELECTRICAL REQUIREMENTS
PAGE 1.5.2 VERSION 0.1 2015-08-01
Electrical Power
The transmitter is preconfigured to operate from a 50/60 Hz 3-phase, 3-wire plus ground, Wye or closed
delta ac power source. You select the specific voltage range when you order the transmitter.
Voltage Stability
The ac power source nominal voltage must be stable to within plus or minus 10% under all loading
conditions. The transmitter contains circuitry that maintains the RF output at the preset carrier level for
voltage variations within the specified range, provided the correct transformer tap is chosen.
Power Consumption
When operating at 5 kW with 100% modulation by a continuous sine wave, power consumption is
approximately 8.7 kW (9.7 kVA). When operating at 5 kW with no modulation, power consumption is
5.8 kW. Power consumption for a specific station will depend on the programming format and the level
of audio processing. Nautel recommends the ac power source have a 25% over-capacity to ensure
adequate regulation.
CAUTION! Do not connect the transmitter to a 3-phase open-delta source
configuration. Open delta sources cause peak voltages to be higher than expected,
are more susceptible to transients and their behaviour may be unpredictable.
Connecting the transmitter to an open-delta source configuration may void the
transmitter’s warranty.