Table 7-8.--Controls and Indicators for the AC Control Panel--Continued
No.
NOMENCLATURE
DESCRIPTION
FUNCTION
16
30 90 OFF
3-position toggle
In 30 position, applies continuous or timed 30
switch
KVAR reactance load to ac input as determined
by AC LOAD PROGRAM SELECTOR switch.
In 90 position, applies 5-min or 5-sec timed 90
KVAR reactance load as determined by AC
LOAD PROGRAM SELECTOR switch.
17
REACTANCE LOAD
Eight 2-position
Apply reactive loads to ac input. Load increments
SELECTORS 3-PHASE
toggle switches
are in KVAR, as marked
KILOVARS 0-3 3 6 12 15
30 30 30
18
30 90 OFF
3-position toggle
In 30 position, applies continuous or timed 30
switches
KVAR reactance load to ac input as determined
by AC LOAD PROGRAM SELECTOR switch.
In 90 position, applies 5-sec timed 90 KVAR
reactance load with AC LOAD PROGRAM
SELECTOR switch in 5 SEC position.
19
SHOCK LOAD
2-position toggle
Applies resistive and reactive loads to ac input for
switch
time intervals determined by AC LOAD
PROGRAM SELECTOR switch. OFF position
aborts timed test.
20
47 141 OFF
3-position toggle
In 47 position, applies continuous or timed 47
switch
KW resistance load to AC LOAD PROGRAM
SELECTOR switch. In 141 position, applies
5-min or 5-sec timed 141 KW resistance load, as
determined by AC LOAD PROGRAM
SELECTOR switch.
21
RESISTANCE LOAD
Six 2-position toggle
Apply resistive loads to ac input. Load increments
SELECTORS 3-PHASE
switches
are in KW, as marked.
KILOWATTS 0-3.5 3 6
12 24 45
22
47 141 OFF
3-position toggle
In 47 position, applies continuous or timed 47
switch
KW resistance load to ac input as determined by
AC LOAD PROGRAM SELECTOR switch. In
141 position, applies 5-sec timed 141 KW
resistance load with AC LOAD PROGRAM
SELECTOR switch in 5 SEC position.
Control Power Application, DC Source
2. Operate the power plant to apply 28 volts to the
load bank.
If power for operating the load bank is supplied by
3. Verify that the DC VOLTS meter (1, fig. 7-63)
the 28-volt dc output of the power plant, proceed as
indicates 28 volts.
follows:
1. Make sure that the 28-volt power cables of the
NOTE: The load bank will not operate if the dc
power plant are connected to the aircraft
input exceeds 31 volts, nor can it be reset until the dc
servicing connection facilities on the dc input
input is reduced below 29 volts.
panel (2, fig. 7-61).
7-60
