Click here to make tpub.com your Home Page

Page Title: Table III - Synchro readings
Back | Up | Next

Click here for thousands of PDF manuals

Google


Web
www.tpub.com

Home

   
Information Categories
.... Administration
Advancement
Aerographer
Automotive
Aviation
Construction
Diving
Draftsman
Engineering
Electronics
Food and Cooking
Logistics
Math
Medical
Music
Nuclear Fundamentals
Photography
Religion
   
   

 




img
MIL-W-15805F(SHIPS)
4.5.1.2 (continued)
57 cycles/1800
r.p.s.,
a. Connect one lead of the megger
(57 of 76) 80 knots.
to the spacing color of the
60
Winchester receptacle. Con-
nect the other lead to each
Table III - Synchro readings.
terminal of the two terminal
Permissible
Correct
Test set
strips successively. The
speed
error
resistance shall be not less
intensity
plus or minus
than 10 megohms at 500
(r.p.m.)
knots
v.a.c.
(b) Speed transmitter:
3/4
17.5
400
(1) General examination in accordance
3/4
800
34.5
1
1200
with MIL-I-983 and as follows:
51.0
1-1/4
1600
67.5
Visual examination speed unit
1-1/4
1800
covering finish, installation of
76.0
lockwashers, soldered connections.
(2) Dielectric strength in accordance
d. Test set to consist of a 1F
with MIL-I-983 and as follows:
synchro driven by variable
Position Hi-Pot test plug to Win-
speed mechanism with switch
chester plug. Set Hi-Pot to 900 v.
for electrical zero position.
and connect one lead to test plug,
(c) Direction transmitter in accordance with
and the other lead to supporting
MIL-I-983:
post . Test for 5 seconds.
(1) General examination:
(3) Insulation resistance in accordance
a. Same as (b) (l).
with MIL-I-983.
(2) Same as (b) (2).
a. Connect one lead of megger to
(3) Same as (b) (3).
supporting post of unit. Con-
(4) Operational test:
nect the other lead succes-
a. Connect unit to test set. Ener-
sively to each prong of Win-
gize from line.
chester plug. The resistance
b. Switch test set to electrical
shall be not less than 10
zero. The 5G synchro should
megohms at 500 v.d.c.
read zero.
(4) Operational test:
c. Switch to direction test and
a. Connect unit to test set. Ener-
check direction of rotation
gize from line.
and accuracy at cardinal points
b. Switch test set to electrical
of plus or minus 1-1/2 degrees.
zero. The 5G synchro should
d. Test set to consist of a lF
read zero.
synchro with dial and pointer
c. Switch to speed test and check
with switch for electrical zero
the 5G synchro readings as
position.
specified in table III.
(d) Complete assembly:
NOTE: The values shown
(1) General examination in accordance
under the "correct
with MIL-I-983:
intensity knots" ap-
a. Visual examination of finish,
ply for nominal
identification plate, screw, and
voltage (115 volts)
lockwashers.
and frequent y (60
4.5.1.3 Final inspection procedure for wind direc-
cycles). At fre-
quencies other than
tion and intensity indicator. - FinaI inspection pro-
60-cycle, the val-
cedure for wind direction and intensity indicator shall
ues shall be pro-
be as follows:
portional to the
change in frequency.
(a) Assembled case, with terminal strips,
All values shall be
receptables and wiring, rheostat, and
recorded, for
transformer:
example:
(1) General examination in accordance
60 cycles/1800
with MIL-I-983:
r.p.m., 76 knots.
a. Visual.
11

Privacy Statement - Press Release - Copyright Information. - Contact Us

Integrated Publishing, Inc. - A (SDVOSB) Service Disabled Veteran Owned Small Business