190-240VAC

295-240
Capacitor Trip Device
240 VAC

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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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.
C292
Frequency Monitor

The Model 292 Frequency Monitor is designed to monitor power line frequency. It is intended for systems where line frequency variations will cause improper operation of electrical equipment. A solid-state sensing circuit drives an internal electromechanical relay which is energized when the line frequency is correct. Operating power is drawn from the same line being monitored.

The Model 292 is set to the over and/or under frequency trip points using ten binary-coded switches. A frequency variation outside the trip points causes the internal relay to drop out and an appropriate LED indicator to illuminate.

Applications for the Model 292 include stand-by power plants, portable power supplies, and windmill generators.

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The Model 292 Frequency Monitor is designed to monitor power line frequency. It is intended for systems where line frequency variations will cause improper operation of electrical equipment. A solid-state sensing circuit drives an internal electromechanical relay which is energized when the line frequency is correct. Operating power is drawn from the same line being monitored.

The Model 292 is set to the over and/or under frequency trip points using ten binary-coded switches. A frequency variation outside the trip points causes the internal relay to drop out and an appropriate LED indicator to illuminate.

Applications for the Model 292 include stand-by power plants, portable power supplies, and windmill generators.