Modification of Kiffer Industries 1.5 Kilowatt Microwave
Although the generator is specified for having an output
power of 1.5 Kilowatts, the magnetron tube used is
capable of producing 1.9 Kilowatts. The limiting factors
in output power are the tube type, high voltage
transformer and value of the high voltage capacitors.
There are instances when the supply progresses into a
runaway condition, with the tube producing maximum
output. The high voltage transformer attempts to provide
the tube with the current it needs to sustain this
output but cannot dissipate the excessive heat in doing
so. Inevitably the transformer windings overheat and the
power supply fails.
Purpose of Modification:
To alleviate premature failure of the high
voltage transformer and to increase reliability of the
the high voltage capacitors with ones of a different
value, thereby limiting the magnetron tube for 1.5
the two high voltage rectifiers with one single dual
package type of higher specifications.
the existing filament transformer and capacitor
arrangement, with a more modern type that does not
require a capacitor.
Replace all wiring inside the generator and organize the
wire runs neatly.
an elapsed time meter to track hours of magnetron
reliable operation of microwave generator.
downtime and failure rates for microwave generators and
airflow throughout generator for cooling of critical
life of critical components.