摘要:
Resettable circuit interrupting devices, such as GFCI devices, that include reverse wiring protection, and optionally an independent trip portions and/or a reset lockout portion are provided. The reverse wiring protection operates at both the line and load sides of the device so that in the event line side wiring to the device is improperly connected to the load side, fault protection for the device remains. The trip portion operates independently of a circuit interrupting portion used to break the electrical continuity in one or more conductive paths in the device. The reset lockout portion prevents the reestablishing of electrical continuity in open conductive paths if the circuit interrupting portion is non-operational or if an open neutral condition exists.
摘要:
A circuit interrupter includes a current transformer, phase conductor and neutral conductor. The phase conductor and the neutral conductor are each configured to pass through the transformer from line side to load side that are defined by the current transformer. The circuit interrupter generates a continuous test current by continuous current imbalance established between the load side of the phase conductor and the line side of the neutral conductor, or between the line side of the phase conductor and the load side of the neutral conductor. A continuous test conductor may be coupled correspondingly to establish the current imbalance. Alternatively, an integrated circuit coupled correspondingly receives power and is energized by a quiescent current thereby. The current imbalance is established by the quiescent current. The current transformer detects the quiescent current as the continuous test current. Corresponding methods are also disclosed.
摘要:
The present invention relates to a family of resettable circuit interrupting devices that eliminates the need to rewire a resettable circuit interrupting device after it is installed and powered up to correct for a reverse wiring conditions.
摘要:
A multifunction sensor device (10) provides various transducer functions for performing temperature sensing, humidity sensing, ambient light sensing, motion detection, thermostat functions, switching functions, load switching and dimming functions, displaying actual and set temperature values, displaying time of day values apparatus for putting the device in an on/off or auto mode. Key elements include mounting the diverse sensors or transducers within the same housing (14) that can be mounted to a wall in a flush manner, eliminating the requirement of an air flow channel in the device (10), thus minimizing any adverse effects on the motion detecting element or sensor. The device can transmit and receive real time data, relative data and actual discrete data in addition to switching and controlling loads locally or remotely.
摘要:
A method of searching and maintaining data elements in memory which are stored in a doubly-linked list. A logically related address component array is used to access data elements in the list. The list is divided into list segments which are dynamically maintained to decrease overall access time.
摘要:
A cross country vehicle for seismic exploration is provided wherein a first drive means, such as wheels can be conveniently interchanged, in the field, for a second drive means having a different configuration such as endless tracks. The interchange is enabled by use of a pre-existing lifting means associated with a seismic acoustic source.
摘要:
A decentralized seismic data recording system includes a central station and a plurality of remote seismic recording units that are incommunicado with the central station during a normal recording operation. A master clock is provided in the central station. A local clock is provided in each remote recording unit. At the beginning of a work period, the local clocks are synchronized with the master clock. Thereafter, a plurality of seismic data recordings are made. At the end of a work period, the time difference due to tuning drift between the master clock and each respective local clock is ascertained and is recorded. The time difference is linearly prorated over the recordings made during the work period, thereby synchronizing the time base of each seismic data recording with the master clock. Provision is made to validate each seismic data recording to prevent accidental recording of false data in event of a misfire or a non-fire of the seismic source.
摘要:
A system and method for charging a vehicle, including receiving electricity via a wall box mounted electrical receptacle or a plug-in receptacle electrically connected to an electrical energy source; establishing a connection between a communication module of the wall box mounted electrical receptacle or the plug-in receptacle and a communications network; receiving electrical energy source data; and controlling the charging of an electrical storage device of the vehicle by automatically controlling the charging based on the electrical energy source data.
摘要:
There is disclosed a circuit interrupting device with symmetrical inputs comprising a first input configured for connection to a power source or a load circuit and a second input configured for connection to a power source. There are a plurality of electrical conductors extending from the first and second inputs and a third input configured for connection to a load provided by a user. There is also a first set of transformers comprising at least one differential transformer and at least one neutral transformer connected to detect leakage current in a load circuit coupled to the first set of terminals. There is also a second set of transformers comprising at least one additional differential transformer and at least one additional neutral transformer connected to detect leakage current in a load circuit coupled to the second set of terminals