Abstract: A test sample handling system for transporting test samples to a testing mechanism comprises a rotary sample holder including a carrier cylinder configured to rotate about a central rotational axis thereof and a carrier arm adjustable between a retracted position and an extended position. A carrier is configured to support one of the test samples and is removably coupled to the carrier cylinder. A lifter mechanism is adjustable between a lowered position and a raised position with the adjustment of the carrier arm from the retracted position to the extended position including a decoupling of the carrier from the carrier cylinder and a transporting of the carrier and the corresponding one of the samples to a position above the lifter mechanism. An adjustment of the lifter mechanism from the lowered position to the raised position includes a removal of the one of the samples from being supported by the carrier.

Abstract: In a line to line fault detection and protection system, a source end power supply supplies power to a remote load over a transmission line and monitors the dynamic behavior of a transmission line power characteristic. If that dynamic behavior is outside a constraint that is actively imposed on the transmission line dynamic behavior by a load end power conditioning system, a possible line to line fault is recognized. The preferred power characteristic is current and the preferred constraint is a maximum rate of change of current drawn from the transmission line by the load end power conditioning system.

Abstract: Systems, methods and devices for a coaxial cable transmission system. A power supply receives a primary power signal from a power source. The power supply generates a switched direct current power signal from the primary power signal. A power gateway receives the switched direct current power signal over a coaxial cable from the power supply. The power gateway generates a secondary power signal from the switched direct current power signal. A load device receives the secondary power signal from the power gateway. In some implementations, the power supply generates the switched direct current power signal at a positive direct current voltage level for a first part of a time period and at a negative direct current voltage level for a second part of the time period.

Abstract: A rheometer docking station and methods of use are provided. Certain of the systems and methods described herein are capable of docking a rheometer to a rheometer docking station. Certain of the systems and methods described herein are capable of locating a rheometer in one, two or three dimensions.

Abstract: A ferroresonant transformer assembly comprising, a core, a main shunt, first, second, and third windings, first and second tap connectors, and a selection connector. The first windings configured to be operatively connected to a primary power source. The first tap connector operatively connected to a first intermediate point defined by the third windings. The second tap connector operatively connected to a second intermediate point defined by the third windings. The selection connector operatively connected to the at least one load. Based on voltage requirements of the at least one load, the selection connector is operatively selectively connected to a selected tap connector selected from the first and second tap connectors.

Abstract: Systems, methods and devices for a coaxial cable transmission system. A power supply receives a primary power signal from a power source. The power supply generates a switched direct current power signal from the primary power signal. A power gateway receives the switched direct current power signal over a coaxial cable from the power supply. The power gateway generates a secondary power signal from the switched direct current power signal. A load device receives the secondary power signal from the power gateway. In some implementations, the power supply generates the switched direct current power signal at a positive direct current voltage level for a first part of a time period and at a negative direct current voltage level for a second part of the time period.

Abstract: A method and apparatus is disclosed for compensating for a reduction of die cavity pressure in a torsional rheometer caused by shrinkage of the test sample. In one embodiment, a compliant member is placed in series with load-bearing components of the rheometer. This compliant member deflects when pressure in the die cavity is reduced resulting in the die cavity becoming smaller to increase the pressure within the die cavity.

Abstract: A diagnostic system for a UPS module has a battery diagnostics module, an inverter diagnostic module, a utility diagnostic module, and a transformer diagnostic module. The battery diagnostic module is configured to generate battery diagnostic information based on at least one operating characteristic of at least one element of the battery module. The inverter diagnostic module is configured to generate inverter diagnostic information based on at least one operating characteristic of at least one element of the inverter module. The utility diagnostic module is configured to generate utility diagnostic information based on at least one operating characteristic of at least one element of the utility power signal supplied by the utility power supply. The transformer diagnostic module is configured to generate transformer diagnostic information based on at least one operating characteristic of at least one element of the transformer module.

Abstract: A power supply configured to be operatively connected to at least one load, comprising an AC bus operatively connected to the load, a first AC power source operatively connected to the AC bus, a DC bus, a DC/AC converter operatively connected between the DC bus and the AC bus, a first DC power source, and a load balancer operatively connected between the first DC power source and the DC bus. The power supply operates in a first mode in which power is supplied to the load from the first AC power source through the AC bus and in a second mode in which power is supplied to the load from the first DC power source through the DC bus, the DC/AC converter, and the AC bus.

Abstract: Power equipment designed for use at a particular location comprises an insolation database, a load database, a processing system, and solar power equipment. The insolation database comprises insolation values associated with a plurality of geographic data points. The load database associates appropriate power equipment with load requirements. The processing system determines a solar power design from load requirements generated from the insolation database based on the insolation values associated with a geographic data point closest to the particular location and the load requirements selected from the load database. The solar power equipment is installed according to the solar power design.

Abstract: A battery system having at least one battery string of more than two batteries connected in series, a charge equalization circuit, and a relay matrix. The plurality of battery strings each comprise more than two batteries connected in series and are connected in parallel. The charge equalization circuit is capable of equalizing the charge on any pair of series connected batteries in any one of the plurality of battery strings. The relay matrix is operatively connected between the charge equalization circuit and the plurality of battery strings. Based on at least one of a voltage and a current of any one of the batteries, the relay matrix is operated such that the charge equalization circuit is connected across any one of the pairs of series connected batteries in any one of the plurality of battery strings.

Abstract: An uninterruptible power supply to be connected between an AC line and a load has a battery system, an inverter, a transformer, and a controller. The battery system stores battery power. The inverter is operatively connected to the battery system. The transformer comprises a primary winding adapted to be connected to the AC line, a load winding adapted to be connected to the load, and an inverter winding operatively connected to the inverter. The controller controls the inverter to operate in a first mode in which the inverter supplies power to the battery system, a second mode in which the inverter supplies power to the load winding using battery power stored in the battery system, and a third mode in which the inverter supplies power to the primary winding using battery power stored in the battery system.

Abstract: The present application relates generally rheometers. In one aspect, misalignment of the air cylinder with respect to the cross-head is accommodated using a flexible coupling between the air cylinder and the cross-head so as to prevent binding and stuttering of the machine due to misalignment.

Abstract: The present application relates generally to moving die rheometers, and more particularly to moving die rheometers that employ a variable eccentric cam. In one aspect, the eccentricity produced by the cam may be adjusted using shims of different thickness to alter the position of the post on the cam.

Abstract: A ferroresonant transformer is adapted to be connected to a primary power source, an inverter system, and a resonant capacitor. The ferroresonant transformer comprises a core, a main shunt arranged to define a primary side and a secondary side of the ferroresonant transformer, first windings arranged on the primary side of the ferroresonant transformer, second windings arranged on the secondary side of the ferroresonant transformer, and third windings arranged on the secondary side of the ferroresonant transformer. The first windings are operatively connected to the primary power source.

Abstract: A battery system having at least one battery string of more than two batteries connected in series, a charge equalization circuit, a relay matrix, and a balance controller. The charge equalization circuit is capable of equalizing the charge on any pair of series connected batteries in the at least one battery string. The relay matrix is operatively connected between the charge equalization circuit and the at least one battery string. The balance controller controls the relay matrix such that at least one to battery characteristic of at least one battery is sensed. Based on at least one sensed battery characteristic, the balance controller controls the relay matrix such that the charge equalization circuit is connected across at least one pair of series connected batteries in the at least one battery string.

Abstract: A UPS module configured to be arranged between at least one AC line and a communications system comprising at least one load comprises a power system, a diagnostic system, and a communications module. The power system comprising a battery module, an inverter module, and a transformer module and is operatively connected between the AC line and the at least one load. The diagnostic system generates battery diagnostic information, inverter diagnostic, utility diagnostic information, and transformer diagnostic information. The communications module transfers diagnostic information between the diagnostic system and the communications system.

Abstract: A connector system comprising a status monitoring cable system comprising a first cable connector adapted to be connected to a generator connector, a second cable connector adapted to be connected to a UPS connector, a third cable connector adapted to be connected to the modem connector, a jumper, first and second power conductors connected between the first cable connector and the second cable connector, and a sensor module comprising a current detect module and a connector detect module. The current detect module transmits a GEN_ON signal to the modem when a current is present in at least one of the first and second power conductors. The connector detect module transmits a GEN_PRESENT signal to the modem when a current flows through the first cable connector, the generator connector, the jumper, the generator connector, and the first cable connector.

Abstract: A sealless die assembly with a backing element is disclosed. A first die assembly cooperates with a second die assembly to form a sample-holding chamber. At least one of the die assemblies includes a die and a housing that are separated from one another by a radial gap such that the die is rotatable relative to its housing. A thin film is positioned to bridge the gap between the die and its housing to maintain pressure in the sample-holding chamber. A backing element cooperates with the die housing to interface with the film, and the backing element is spaced from its corresponding die. The backing element helps to transfer torque from the sample to the torque transducer. The die assembly may be incorporated into a rheometer or other sampling measuring apparatus for testing process characteristics of a material.

Abstract: A design system for generating a power equipment proposal for a particular location, comprises an insolation database, a load database, and a processing system. The insolation database comprises insolation values associated with a plurality of geographic data points. The load database associates appropriate power equipment with load requirements. The processing system generates at least one power equipment proposal based on load requirements generated from the insolation database based on the insolation values associated with a geographic data point closest to the particular location and solar power equipment appropriately selected from the load database based on the load requirements generated from the insolation database.