درباره ما
NASA-LLIS-2496
Lessons Learned – High Voltage Power Supply Circuit Failure due to Hollow Core Resisto
Year: 2010
Abstract: Abstract:
On two simultaneous sounding rocket missions, science instrument high voltage power supplies experienced in-flight failure. A subsequent investigation discovered that the OHMITE Maxi-Mox series resistors in the power supply circuitry have a hollow core, which, during the rapid ascent of the sounding rocket, did not have sufficient time to properly vent. This resulted in coronal arcing in the resistor and subsequent failure of the power supply's feedback op-amp. It is recommended that hollow core resistors only be used in situations where they are given sufficient time to reach vacuum prior to high voltage being applied.
On two simultaneous sounding rocket missions, science instrument high voltage power supplies experienced in-flight failure. A subsequent investigation discovered that the OHMITE Maxi-Mox series resistors in the power supply circuitry have a hollow core, which, during the rapid ascent of the sounding rocket, did not have sufficient time to properly vent. This resulted in coronal arcing in the resistor and subsequent failure of the power supply's feedback op-amp. It is recommended that hollow core resistors only be used in situations where they are given sufficient time to reach vacuum prior to high voltage being applied.
Subject: Engineering Design (Phase C/D).
Show full item record
| contributor author | NASA - National Aeronautics and Space Administration (NASA) | |
| date accessioned | 2017-09-04T15:12:10Z | |
| date available | 2017-09-04T15:12:10Z | |
| date copyright | 03/24/2010 | |
| date issued | 2010 | |
| identifier other | LWKFSCAAAAAAAAAA.pdf | |
| identifier uri | https://yse.yabesh.ir/std/handle/yse/10598 | |
| description abstract | Abstract: On two simultaneous sounding rocket missions, science instrument high voltage power supplies experienced in-flight failure. A subsequent investigation discovered that the OHMITE Maxi-Mox series resistors in the power supply circuitry have a hollow core, which, during the rapid ascent of the sounding rocket, did not have sufficient time to properly vent. This resulted in coronal arcing in the resistor and subsequent failure of the power supply's feedback op-amp. It is recommended that hollow core resistors only be used in situations where they are given sufficient time to reach vacuum prior to high voltage being applied. | |
| language | English | |
| title | NASA-LLIS-2496 | num |
| title | Lessons Learned – High Voltage Power Supply Circuit Failure due to Hollow Core Resisto | en |
| type | standard | |
| page | 3 | |
| status | Active | |
| tree | NASA - National Aeronautics and Space Administration (NASA):;2010 | |
| contenttype | fulltext | |
| subject keywords | Engineering Design (Phase C/D). | |
| subject keywords | Engineering Design (Phase C/D).Crew Survival Systems | |
| subject keywords | Engineering Design (Phase C/D).Launch Systems | |
| subject keywords | Engineering Design (Phase C/D).Orbiting Vehicles | |
| subject keywords | Engineering Design (Phase C/D).Power | |
| subject keywords | Engineering Design (Phase C/D).Spacecraft and Spacecraft Instuments | |
| subject keywords | Safety and Mission Assurance. | |
| subject keywords | Safety and Mission Assurance.Advanced planning of safety systems | |
| subject keywords | Safety and Mission Assurance.Early requirements and standards definition | |
| subject keywords | Safety and Mission Assurance.Reliability | |
| subject keywords | Systems Engineering and Analysis. | |
| subject keywords | Systems Engineering and Analysis.Engineering design and project processes and standards | |
| subject keywords | Systems Engineering and Analysis.Mission and systems trade studies |