Abstract:
A compressor monitoring system includes current and voltage monitors, current and voltage averaging modules, a control module, and a switch. The current monitor measures a current drawn by a motor of a compressor. The current averaging module generates first and second average current values based on the current measured by the current monitor. The voltage monitor measures a utility power voltage. The voltage averaging module generates first and second average voltage values based on the voltage measured by the voltage monitor. The control module selectively generates a fault signal when a first ratio is greater than a first predetermined threshold and a second ratio is less than a second predetermined threshold. The first ratio is based on the first and second average current values. The second ratio is based on the first and second average voltage values. The switch deactivates the motor when the fault signal is generated.
Abstract:
A system includes a power source, a compressor that operates in a reduced-capacity mode and a full-capacity mode, and an actuation assembly that modulates the compressor between the reduced-capacity mode and the full-capacity mode. A controller reduces the power source to a predetermined level prior to the power source being supplied to the actuation assembly for use by the actuation assembly in controlling the compressor between the reduced-capacity mode and the full-capacity mode.
Abstract:
A vapor-compression circuit may be used to meet the temperature/load demands for conditioning one or more spaces. Excess heat generated in the vapor-compression circuit may be utilized to generate an electric current that may power other components of the vapor-compression circuit. A thermoelectric device may be placed in heat-transferring contact with the excess heat and generate the electrical current. The electric current generated may be used to power another thermoelectric device to provide further cooling or heating of a fluid in heat-transferring relation therewith to supplement the vapor-compression circuit and the conditioning of the space.
Abstract:
Un sistema que comprende: un compresor (12) que comprende un motor eléctrico configurado para conectarse a una fuente de alimentación (50); un módulo de sensor (32) que comprende: una entrada configurada para recibir mediciones de corriente generadas por un sensor de corriente (57, 60) en función de una corriente de la fuente de alimentación (50); y un procesador (100) que se conecta a la entrada, caracterizado porque: con el procesador configurado para determinar una corriente continua máxima para el motor eléctrico establecida en función de un tipo de refrigerante usado por el compresor, comparar selectivamente las mediciones de corriente con un valor igual a la corriente continua máxima multiplicado por un valor predeterminado, y generar una señal cuando las mediciones de corriente son mayores que el valor para un periodo predeterminado; y al menos uno de un módulo de control (30) y un controlador del sistema (34) configurado para ajustar selectivamente al menos uno del funcionamiento del compresor (12) y del sistema de refrigeración en función de la generación de la señal.
Abstract:
A compressor is provided and may include a shell, a compression mechanism, a motor, and a diagnostic system that deter-mines a system condition. The diagnostic system may include a pro-cessor and a memory and may predict a severity level of the system condition based on at least one of a sequence of historical-fault events and a combination of the types of the historical-fault events.
Abstract:
C \NRPonbADCC'dXF\4679667_ .DOC-10/17/2012 A sensor module for a compressor having an electric motor connected to a power supply, the sensor module comprising: 5 a first input connected to a first voltage sensor that generates a voltage signal corresponding to a voltage of said power supply; a second input connected to a first current sensor that generates a current signal corresponding to a current of said power supply; a processor connected to said first and second inputs that calculates a power factor 10 of said compressor based on voltage measurements from said first input and current measurements from said second input; wherein said processor is disposed within an electrical enclosure attached to an exterior of said compressor, said electrical enclosure being configured to receive electrical leads of said power supply and to house said first voltage sensor, said first current sensor, 15 and electrical terminals that connect said electrical leads of said power supply to said electric motor. WO 2009/061370 PCT/US2008/012364 AC (three phase) 49 102 104 PCB Trans.101 116; Processor 10 Comm relay 20 Ot119 -e e relay 124 -0 126-- To CM
Abstract:
A sensor module for a compressor, having an electric motor operating at a first voltage, the sensor module operating at a second voltage, is provided. The sensor module includes a plurality of inputs connected to a plurality of sensors that generate a plurality of operating signals associated with operating conditions of the compressor. A processor is connected to the plurality of inputs and records multiple operating condition measurements from the plurality of operating signals. A communication port is connected to the processor for communicating said operating condition measurements to a control module that controls the compressor. The processor is disposed within an electrical enclosure of the compressor, the electrical enclosure being configured to house electrical terminals for connecting a power supply to the electric motor. The second voltage is less than said first voltage.
Abstract:
A compressor is provided and may include a shell, a compression mechanism, a motor, and a diagnostic system that determines a system condition. The diagnostic system may include a processor and a memory and may predict a severity level of the system condition based on at least one of a sequence of historical-fault events and a combination of the types of the historical-fault events.
Abstract:
Un sistema que comprende: un compresor (10); un motor (28, 46, 48) fijado a dicho compresor (10) para alimentar dicho compresor (10); un protector de motor (54) asociado a dicho motor (28, 46, 48) y accionable entre una primera posición cuando dicho motor está dentro de parámetros de funcionamiento especificados y una segunda posición cuando dicho motor está fuera de dichos parámetros de funcionamiento; un primer sensor (102) que monitoriza una característica de funcionamiento de dicho compresor (10); un sistema de diagnóstico (100) que incluye un conjunto de circuitos lógicos (104) utilizable para analizar una condición de dicho protector de motor (54) como una función de tiempo basándose en información recibida desde dicho primer sensor (102) y para identificar una causa de fallo específica; y un dispositivo inteligente (116) en comunicación con dicho conjunto de circuitos lógicos (104).