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14 Specifications
2.2.
Operation specifications and ambient conditions
Table 3 - Operation specifications of the rectifier
Output regulation :
Temperature drift :
Output noise and
ripple :
Total harmonic
distortion ( THD ) :
Efficiency :
Power factor :
Heat dissipation :
Electromagnetic
interference ( EMI ) :
Reliability:
UM5C05C P0745680 Standard 6.00 October 2001
At the output terminals, the voltage is within ±0.5% of
the set voltage value for all specified input and output
variations, and within ±1% for any combination of
specified input, output and ambient conditions.
Unless otherwise stated, all input and output
parameters such as input voltage range, output current
and voltage, current limit, etc. shall not vary more than
2% over the operating temperature range.
• less than 22 dB of random noise on C band at voice
frequency over the entire operating range of the
rectifier, including operation in the current limit mode,
and at low, nominal and high input voltage conditions
( with or without batteries and measured at the point
of regulation )
• less than 20 mV RMS in any 3 kHz band between 10
kHz and 20 MHz ( measurements made with or
without batteries at the output terminals of the
rectifier and with the rectifier in the local sensing
mode )
• less than 250 mV peak to peak switching voltage
spikes ( measured differentially with an a 100 MHz
oscilloscope )
Less than 5%.
Better than 89% at a nominal input voltage of 350 V ac
and for an output current ( load ) greater than 80 A.
Better than 99% with an output current ( load ) greater
than 80 A.
The maximum heat dissipation is 1420 watts
( 4846 BTU / hr ) for an output current ( load ) of 200 A
at –58 V dc ( when the ac input is 330-475 V )
The NT5C05CA / CB rectifiers when used in the
rectifier cabinet NT6C43CA / CB ( equipped with the
ac EMI filter kit NT6C18KB, or the NT5C05CC without
external EMI filter ) meet the CISPR requirements for
conducted and radiated EMI as specified in Publication
22 for Class "A" equipment.
The rectifier has an MTBF greater than 120 000 hours
under normal operating conditions, at 77°F ( 25°C ) as
per Telcordia Technologies TR332 method.
Emerson Energy Systems
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