34results about How to "Know the working status" patented technology

The invention relates to a shunt release which can be controlled by an external power-off protection signal, and is arranged on a power line. The shunt release comprises a casing, and a tripping coil and a switch control circuit which are positioned in the casing. The switch control circuit comprises an external power-off signal receiving unit used for receiving an external power-off control signal and converting a semaphore; a power supply unit used for obtaining a real-time voltage from the power line, converting the voltage to a stable voltage and supplying power to the control circuit; and a command processing unit used for receiving the semaphore so as to generate a triggering signal and enable the shunt release to conduct an off-action.

The invention relates to an automatic subway train tracking system based on a digital cluster. The automatic subway train tracking system based on the digital cluster is mainly realized by the invention, and the train running state is analyzed by digital cluster system information; some state information of a digital cluster vehicle-mounted terminal on a train is obtained, such as startup and shutdown state information, dry contact information and affiliation base station information; the information is displayed in a graphical way, so that a dispatcher can more intuitively know the working state, the running direction and the running position of each train. By using the automatic subway train tracking system based on the digital cluster, the effective train scheduling can be realized by assisting the dispatcher, positive significance is realized in the aspects of guaranteeing the safe operation of subway trains and protecting the life and property safety of people, rapid troubleshooting and fault resolution are facilitated, and the troubleshooting efficiency is improved.

The invention discloses a small breaker. The breaker comprises a plastic shell, a movable contact, a static contact, an operation mechanism, an electromagnetic tripping mechanism, an arc extinguish chamber and a run-on tab, wherein the electromagnetic tripping mechanism comprises a magnetic yoke; one end of the run-on tab is electrically connected with the static contact, while the other end of the run-on tab extends into the arc extinguish chamber; and the arc extinguish chamber is positioned under the magnetic yoke. The small breaker is characterized by comprising an iron arc guide plate; one end of the arc guide plate, namely a fixed end, is fixed on the bottom of the magnetic yoke, while the other end of the arc guide plate, namely an arc guide end, is bent downwards and close to the movable contact. The small breaker has the advantages of effectively improving the capability of short circuit disjunction of the breaker, easily achieving the level of 6,000A energy level 3, and has short arcing time less than 6 milliseconds.

The invention relates to a circuit breaker isolation operating system. The circuit breaker isolation operating system is arranged in a control box and is characterized by comprising an interlocking operating device, a locking device and a transmission mechanism, wherein the interlocking operating device and the locking device are connected by the transmission mechanism. The working condition that a circuit breaker and a ground switch cannot be simultaneously switched on is achieved by the interlocking operating device, the situation that the circuit breaker is switched on when the ground switch is switched on is prevented by the locking device, and the safety of a circuit is protected.

The invention discloses a method and a system for monitoring the height changes of a compensation pendant of a contacting net. The method comprises the following steps that S01, fault modeling, a specialty that the fault modeling of a compensation device is established by analyzing the vertical-and-horizontal or multi-dimension big data according to the big data of the height of the pendant; S02, data collecting, a specialty that the height of the pendant and the scene temperature and light are detected and sent to a control center; S03, data processing, a specialty that the fault modeling is matched according to the data of the scene temperature and light and the height of the pendant; S04, fault warning, a specialty that the corresponding fault modeling warning is made according to the matched fault modeling of the step S03; and S05, fault processing, a specialty that the corresponding fault removing is performed according to the fault judgment in step S04. According to the method, the fault modeling of the compensation device is established according to the state of the pendant, and then the matching with the fault modeling is conducted according to the actual detected pendant state, so that the working state of the compensation device is known accurately. The whole process does not need the manual participation, and the workload is reduced.