摘要:
A control system for an industrial plant receives plant data and combines that plant data with a plurality of graphical patterns representing the plant. In this way a series of prepared displays are created to be displayed fox a user of the control system. If the user wants to simplify one or more of the displays, in order to make it more clear, the control system has means for modifying the displays, and displaying that modified display. The modification may be one of a number of possibilities such as deletion (masking) part or all of the display. In this way, the full plant information may be presented, or more limited information may be presented, e.g. to a more experienced user.
摘要:
A power generation plant remote control and operation system is constituted by a plurality of thermal power generation plants 100 each of which is provided with a communication terminal 200 and a function of controlling respectively a boiler control unit 110, a turbine control unit 120 and an auxiliary machine sequence control unit 130 based on an operation signal inputted via the communication terminal 200 and a remote control center 10 which is connected to the communication terminal 200 via an internet 300, accesses the control units 110, 120 and 130 representing control objects in the respective thermal power generation plants 100 and remotely controls operating states including starting and stopping of the concerned thermal power generation plant 100, further, the thermal power generation plant 100 pays a consideration to the remote control center 10 based on its own operating state controlled by the remote control center 100. Thereby, a system is provided in which the starting and stopping operation of electric power generation plants is performed remotely and automatically depending on the circumstance of machines and apparatuses of the respective plants or the same is performed semiautomatically and properly after being provided with a guidance.
摘要:
A plurality of thermal power generation plants 100 are provided with a communication terminal 200 and a function of controlling respectively a boiler control unit 110, a turbine control unit 120 and an auxiliary machine sequence control unit 130 based on an operation signal inputted via the communication terminal 200. A remote control center 10 which is connected to the communication terminal 200 via the Internet 300, accesses the control units and remotely controls operating states including starting and stopping of the concerned thermal power generation plant 100.
摘要:
To provide a method of synchronous circuit opening of generator circuit breaker and its control apparatus that can protect a sound generator system of a generator main circuit from a phenomenon that current may not pass through current zero for many cycles. There is provided a construction where a generator exciting current control is incorporated into a control mechanism. In case that an occurrence possibility of a phenomenon that current may not pass through current zero for many cycles can be anticipated, time delay is intentionally caused by timer so as to prevent synchronism of the phenomenon, using an output signal of a generator lock-out relay which covers individual element of an electrical fault causing the phenomenon or in which circuit all those elements are integrated. In case that the phenomenon can be anticipated by calculation, a reactive power output of a generator is increased and consequently AC current amplitude of a sound generator is increased so as to eliminate the phenomenon.
摘要:
A safeguard arrangement for a plant, which comprises a plant auxiliary provided with a lid and so designed that the lid is opened for maintenance of the inside thereof, switching means installed on a piping connected to said plant auxiliary, and driving means to give a driving output to the switching means in response to an opening or closing instruction signal for said switching means, and which is employed when operations for maintenance of the aforesaid plant auxiliary are executed, is provided additionally with lid opening detecting means to detect the opening of the lid of the afore-said plant auxiliary or the release of locking means thereof, in gearing with either of them, and checking means to check the opening of the aforesaid switching means on the basis of the opening instruction signal for the switching means when it is detected by said lid opening detecting means that the lid is opened or to be opened.
摘要:
A monitoring and control system is provided having a control device, arranged in a central controller room, which provides commands to power distribution panel switch gear located in the field. The switch gear transmits and receives controlling and monitoring signals through wireless communication applying an evanescent mode. The switch gear has a power circuit connected to a plurality of devices to be operated. The switch gear is a panel comprising metal and non-metal surfaces, so that a portion of wireless waves in the evanescent mode travel out of the panel. A receiver is provided for monitoring the wireless waves that travel out of the panel. The wireless signals are compared with information stored in a diagnostics database, and are diagnostically evaluated to determine whether the signals are within a known normal operating range.
摘要:
A plurality of thermal power generation plants 100 are provided with a communication terminal 200 and a function of controlling respectively a boiler control unit 110, a turbine control unit 120 and an auxiliary machine sequence control unit 130 based on an operation signal inputted via the communication terminal 200. A remote control center 10 which is connected to the communication terminal 200 via the Internet 300, accessses the control units and remotely controls operating states including starting and stopping of the concerned thermal power generation plant 100.
摘要:
In a display method and a display unit, information which is required or often used by an operator is processed visually conspicuously by enlarged display or colored display in accordance with historical data such as the past running conditions of the plant, the number of times of operations by an operator, the frequency of operations, and so on, and the processed information is displayed on the display unit. The use of historical data permits an operator to readily recognize which equipment is in most need of attention due to repeated problems in the past.
摘要:
The present invention relates to an improvement of a discharge container with a nozzle for housing a liquid, for example, an instantaneous adhesive or another moisture curing type adhesive, various adhesives such as solvent volatilizing type adhesive, various chemicals, foods, inks and medical supplies. The present invention is a discharge container with a nozzle which includes a container body for housing contents, a nozzle threadly attached to the container body, and a dual-shoulder type protective frame having a neck hole, wherein the base end of the mouth of the container body is inserted through the neck hole of the dual-shoulder type protective frame, and the container body is threadly attached to the nozzle, thereby allowing them to be made a one-piece structure. The present invention is a highly safe and easy-to-use container which can house a relatively high viscosity liquid such as jelly-like and grease-like ones, be stood up, discharge the contents smoothly until before the last service, provide no liquid run and leakage, and discharge the contents completely until before the last service. Particularly, the container of the present invention is excellent in safety and operability such that the container is opened or closed through the protective frame without directly touching the container body, so that the tube when used is not deformed or broken until before the last service.
摘要:
A communication module of a controller for outputting a command relating to an operation and a monitor for auxiliaries to be operated and a communication module of a switch gear for generating information relating to a protection and an interlock for the auxiliaries to be operated are connected through a serial transmission cable wires. Each of the switch gears is connected each other through a serial transmission cable wires. By controlling a CPU in the switch gear, an activation of the auxiliaries to be protected which are connected to a power circuit is commanded and then the protection operation and the interlock operation for the auxiliaries to be operated are carried out. A small scale of the apparatus can be attained and the wiring cables can be lessened.