Harris Gates Five 994 9204 002, Техническое руководство

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Figure 2-5. AC Power Panel
CONTROL/
INDICATOR FUNCTION
Relay K1 Relay K1 is used to
apply AC to the high
vo l t a g e t r a n s fo rm er
through current limiting
resistor(s) during the
step start sequence.
Relay K2 Relay K2 is used to
apply AC mains directly
t o t h e h i g h vo l t a g e
transformer.
Terminal Board
TB1 Provides connections
for AC input power.
Step Start Re-
sistors A19R3,
A 1 9 R 2 ,
&
A19R1
(Only one resistor is
used in the single phase
transmitter.) The step
start resistors limit the
p ow e r s u p p l y su rg e
current on initial turn on.
Phase Monitor Detects loss of phase on
primary AC input power
and has capability to
detect low primary AC
input voltage (3 phase
GATES FIVE only).
FA N C i r c u i t
B r e a k e r s
A 2 0 C B 2
&
A20CB3
Protect wiring to fans
f r o m
o ve r c u r re n t
condition.
Lamp A20DS1 DS 1 will illuminate
when power is applied to
the low voltage circuitry.
Circuit Breaker,
CB1 10 Amp circuit breaker
t o p r o t e c t t h e l ow
voltage power supply
from an over current
condition.
Lamp A19DS1 A19DS1 will illuminate
when power is applied
f r o m
t h e M a i n
Disconnect Switch (i.e.
cabinet is receiving AC
power).
Table 2-6. AC Power Panel
Controls and Indicators
Rev. AC: 2/29/00 888-2314-001 2-9
WARNING: Disconnect primary power prior to servicing.