Description
The Model 295 Capacitor Trip
Device is used to trip circuit breakers requiring an AC voltage,
by using the stored energy in a capacitor. The capacitor is
kept at full charge during normal operation by a half-wave
silicon rectifier which draws its energy from the power line.
When completely discharged,
the Model 295 draws approximately 10 amps from the line
in the first half cycle, 3 amps the second half cycle and
1 amp from the third. Continuous current required to keep
the capacitor charged is less than 5 milliamps.
The capacitor holds sufficient
charge to trip the breaker for at least 12 seconds after
the charging voltage is removed. However, on most fault
conditions, some voltage is still present, so the Model
295 is designed so that 65% of normal voltage gives sufficient
charge to trip the breaker. A low-energy lamp, connected
in parallel with the storage capacitor, gives a visual indication
when the voltage charge is 85 volts or more on the 120V
version and 170 volts or more on the 240V version.
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Hot Features:
- Discharge manually
or by a control device
- 120 and 240 volt
versions
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