 |
|||
|
|
|||
| ||||||||||
|
|  MIL-E-7016F
Primary source. A primary source is equipment that generates
6.2.3.2
electric power from energy other than electrical, and is independent of any other
electrical source. For example: The primary source of an ac electric system may
be the main engine-driven generator(s) or auxiliary power unit-driven generator(s).
The primary source of a dc electric system may be a battery, main engine-driven
genentor(s) or auxiliary power plant (APP) - driven generator. There may be
both an ac and a dc primary system in the same vehicle.
Secondary source. A secondary source is equipment that
6.2.3.3
transforms and/or converts primary source power to supply electric power to either
ac or dc utilization equipment. A secondary source is entirely dependent upon a
primary source and is considered part of the load of its primary source. There may
be both an ac and dc secondary source in the same vehicle.
Normal source. The normal source is that source which serves
6.2.3.4
an electric power system throughout a routine mission.
Alternate source. An alternate source is a second power source
6.2.3.5
which may be used in lieu of the normal source, usually upon failure of the normal
source. The use of alternate sources having characteristics differing from those
of the normal source creates a new load and power configuration and therefore a
new electric system, which may require separate source capacity analysis.
----- -. ----- ---
Emergency. For the purpose of thiS specification, emergency
6.2.4
is the condition when the normal source of essential electric power becomes totally
inoperative and an alternate power source must be used.
6.2.5
Ratings.
Nominal rating. The nominal rating of a unit power source is
6.2.5.1
its nameplate rating. This rating is usually a continuous duty rating for specified
operating conditions.
Interval rating. The interval rating of a unit power source is
6.2.5.2
its maximum power output capacity for a specified time interval This rating is
determined under the operating conditions specified for the nominal rating. 5 seconds
and 5 minutes have been adopted as the standard overload intervals for this specifi-
cation. Specifications and standards for electric power sources should specify over-
load capacities for these intervals. Among the documents involved are:
MIL-G-6162
MIL-I-7032
MIL-C-7115
MIL-G-21480
MIL-E-23001
19
|
|
Privacy Statement - Press Release - Copyright Information. - Contact Us |
Click
here for thousands of PDF manuals