
14 Specifications
2.2.Operation specifications and ambient conditions
Table 3 - Operation specifications of the rectifier
Output regulation : | 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. |
Temperature drift : | 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. |
Output noise and | • less than 22 dB of random noise on C band at voice |
ripple : | 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 ) |
Total harmonic | Less than 5%. |
distortion ( THD ) : |
|
Efficiency : | Better than 89% at a nominal input voltage of 350 V ac |
| and for an output current ( load ) greater than 80 A. |
Power factor : | Better than 99% with an output current ( load ) greater |
| than 80 A. |
Heat dissipation : | The maximum heat dissipation is 1420 watts |
| ( 4846 BTU / hr ) for an output current ( load ) of 200 A |
| at |
Electromagnetic | The NT5C05CA / CB rectifiers when used in the |
interference ( EMI ) : | 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. |
Reliability: | 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. |
UM5C05C P0745680 Standard 6.00 October 2001 | Emerson Energy Systems |