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Incident: United B757 at Newark on Jul 8th 2016, rejected takeoff due to generator failure
A United Boeing 757-200, registration N598UA performing flight UA-1979 from Newark,NJ to San Francisco,CA (USA), was accelerating for takeoff from Newark's runway 22R when the crew rejected takeoff at low speed reporting a generator failure (engine PW2037). The aircraft slowed safely and returned to the apron. (avherald.com) Más...You got serious issues...
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It appears the quote is from a paper I found here:
http://www.angelfire.com/ct3/ctenning/electrical_essays/777elecpwr/777_design.html
and indeed, Mr. Tenning refers to the item as 'alternator'.
However, Chapter 9 of the FAA Airframe Handbook found here:
https://www.faa.gov/regulations_policies/handbooks_manuals/aircraft/amt_airframe_handbook/media/ama_Ch09.pdf
mentions that generators producing alternating current may be called either generators or alternators. Perhaps perusal of the FAA document can help you out.
cheers and happy reading.
http://www.angelfire.com/ct3/ctenning/electrical_essays/777elecpwr/777_design.html
and indeed, Mr. Tenning refers to the item as 'alternator'.
However, Chapter 9 of the FAA Airframe Handbook found here:
https://www.faa.gov/regulations_policies/handbooks_manuals/aircraft/amt_airframe_handbook/media/ama_Ch09.pdf
mentions that generators producing alternating current may be called either generators or alternators. Perhaps perusal of the FAA document can help you out.
cheers and happy reading.
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Just for your information, taken from a Boeing 737-700 Aircraft Maintenance Manual:
Purpose
The electrical power system makes and supplies AC and DC power to airplane. The system has automatic and manual controls and protection. A standby AC and DC system gives normal and emergency power.
AC Power
The electrical power system has four main AC power sources and one standby power source. These are the main AC power sources and their supply capacity:
Left integrated drive generator (IDG 1) (90 KVA)
Right integrated drive generator (IDG 2) (90 KVA)
APU starter-generator (90 KVA below 32,000 feet/9,753 meters, and goes down to 66 KVA at 41,000 feet/12,496 meters)
External power (90 KVA).
The IDGs and APU starter-generator supply a 3 phase, 115/200 volts (nominal) at 400 Hz. The AC power system design prevents two sources to the same load at the same time.
The static inverter supplies a one phase, 115v ac output to the AC standby bus.
Purpose
The electrical power system makes and supplies AC and DC power to airplane. The system has automatic and manual controls and protection. A standby AC and DC system gives normal and emergency power.
AC Power
The electrical power system has four main AC power sources and one standby power source. These are the main AC power sources and their supply capacity:
Left integrated drive generator (IDG 1) (90 KVA)
Right integrated drive generator (IDG 2) (90 KVA)
APU starter-generator (90 KVA below 32,000 feet/9,753 meters, and goes down to 66 KVA at 41,000 feet/12,496 meters)
External power (90 KVA).
The IDGs and APU starter-generator supply a 3 phase, 115/200 volts (nominal) at 400 Hz. The AC power system design prevents two sources to the same load at the same time.
The static inverter supplies a one phase, 115v ac output to the AC standby bus.
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Let me first note I suspect you are what you say you are, and thus know just as well as Carl Tenning or anyone else actually familiar with the technology..that a GENERATOR is not an ALTERNATOR - they are as different as night and day. That is, if we were to use correct technical language, there are no generators in modern Boeing aircraft.
But you are right...our culture..our language is evolving to reflect our changed status. No question...as you point out...at the very least...if you failed to "go with the flow" and call a Boeing's ALTERNATOR an ALTERNATOR...at best you would be laughed at...could lose your job !
I should know better - we have a similar situation in the old car hobby. Back in the 1950's, we started a car club called the CLASSIC CAR CLUB OF AMERICA. Its stated function was to try and preserve the largest, most powerful, most elegant super-luxury cars of the late 1920's and 1930's. For example, we tried to preserve cars like 16 cyl. Cadillacs, 12 cyl Pierce Arrow and Packards, and so on.
The idea that we would be interested in the ordinary cars of that or any other era never occurred to us.
Well..just as the general populace now likes the word "GENERATOR" and couldn't care less that no modern Boeing aircraft has any.....the public now likes the word "classic".
No question...if I asked some guy with a mid 1960's Chevrolet pick up truck why he thinks his car is a "classic"...I'd be lucky to get away from him with all my teeth...!
So - you are right - I shouldn't have questioned modern journalism...or what folks write in technical manuals.
Oh, by the way..no point in attacking Carl Tenning for his insisting that the design team he commanded knew what they were doing......he has retired and no longer writes technical articles for the SAE.