Guardian Technologies 5308 Manual De Usuario

2. During startup, printed circuit board action controls the START/

STOP RELAY to deliver battery voltage to the ROTOR, via the
brushes and slip rings.

a.  The battery voltage is called “Field Boost”.
b.  Flow  of  direct  current  through  the  ROTOR 

increases the strength of the magnetic field 

above that of “residual” magnetism alone.

3. “Residual” plus “Field Boost” magnetism induces a voltage into

the Stator excitation (DPE), battery charge and AC Power wind-
ings.

4. Excitation  winding  unregulated  AC  output  is  delivered  to  an

electronic Voltage Regulator, via an Excitation Circuit Breaker.

a.  A “Reference” voltage has been preset into 

the Voltage Regulator.

b.  An “Actual”  (“sensing”)  voltage  is  delivered 

to  the Voltage  Regulator  via  sensing  leads 

from the Stator AC power windings.

c.  The Regulator “compares” the actual (sens-

ing) voltage to its pre-set reference voltage.

 

(1)  If  the  actual  (sensing)  voltage  is  great-

er  than  the  pre-set  reference  voltage,  the 

Regulator  will  decrease  the  regulated  cur-

rent flow to the Rotor.

 

(2)  If  the  actual  (sensing)  voltage  is  less 

than  the  pre-set  reference  voltage,  the 

Regulator will increase the regulated current 

flow to the Rotor.

 

(3) In the manner described, the Regulator 

maintains an actual (sensing) voltage that is 

equal to the pre-set reference voltage.

output to direct current (dC).
5. When an electrical load is connected across the Stator power

windings, the circuit is completed and an electrical current will
flow.

6. The  Rotor's  magnetic  field  also  induces  a  voltage  into  the

Stator battery charge windings.

a.  Battery  charge  winding  AC  output  is  deliv-

ered  to  the  battery  charge  rectifiers  (BCR) 

which  changes  the  AC  to  direct  current 

(DC).

b.  The  rectified  DC  is  then  delivered  to  the 

units  battery  and  battery  charge  outlet,  to 

maintain the battery in a charged state.

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FIELD BOOST FROM 
START/STOP RELAY (SSR)