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Track circuits
| Глоссарий в железнодорожной технике |
Means by which the passage of trains is detected and the information used to control signals provided for train safety and control. the simple track circuit consists of a relay energised by a low voltage circuit fed through the running rails of a section of track. each section is electrically isolated from others. the energised relay detects no train present and can be used to switch power to a green signal light. if a train enters the section, its wheelsets will short out the circuit, causing the relay to de-energise and switch off the green signal. the relay will now switch on the red signal light. the light remains red until the last wheelset of the train clears the section, allowing the track circuit to be restored and the signal to return to green.
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Circuit, английский
- An arrangement of conductors and electrical apparatus connected to a source of electricity supply (see also open circuit).
- The path of electrical flow from a power source through an outlet and back to ground.
- Цепь; схема
- Means of two-way communication between two or more points. 1. in communication systems, an electronic, electrical, or electromagnetic path between two or more points capable of providing a number of channels. 2. electric or electronic part. 3. optical or electrical component that serves a specific function or functions.
- Originally a physical connection that transmits electricity or signals. now also a communication channel that guarantees a fixed transmission capacity.
- Схема
- Round trip,
- Path followed by an electrical current.
- A set of components that form a circular path or route for fluid flow, e.g., to make open-loop geothermal circuits and closed-loop geothermal circuits.
Circuit, английский
Circuit, английский
Circuit, английский
Circuit, латинский
Circuit (specific function), английский
Circuit access points, английский
Circuit algebra, английский
Алгебра схем; схемная алгебра
Circuit analysis, английский
Схемный анализ
Circuit array, английский
Матрица схем; схемная матрица
Circuit binding; divinity binding; divinity stile, английский
Circuit board, английский
Монтажная плата
Circuit breaker, английский
- A switch suitable for opening a circuit automatically as a result of predetermined conditions, such as those of overcurrent or undervoltage or by some form of external control.
- A device which looks like a switch and is usually located inside the electrical breaker panel or circuit breaker box. it is designed to (1) shut of the power to portions or all of the house and (2) to limit the amount of power flowing through a circuit (m
- Автомат защиты сети
- An electric device for opening and closing a circuit, designed to open the circuit automatically upon flow of a predetermined value of abnormally high current; may be repeatedly reclosed and reused as an automatic overcurrent protection device without replacement of any components.
- Автоматический предохранитель; прерыватель цепи; автоматический прерыватель тока; пакетный переключатель
- Adevice used to interrupt an electrical circuit when current flow exceeds a predetermined level.
- An electrical device used to interrupt an electrical supply in the event of excess current flow. can be either magnetically or thermally activated, or a combination of both. can be manually or automatically reset.
- Device for interrupting an electrical circuit when the current exceeds a predetermined value. the device can be reset after the circuit malfunction has been corrected,
Circuit breaker closing, английский
Circuit breaker neutral pole, английский
Circuit breaker openinig, английский
Circuit breaker position data, английский
Circuit breaker unit, английский
Cbu
Circuit breaker., английский
Circuit breakers, английский
Measures instituted by exchanges to stop trading temporarily when the market has fallen by a certain percentage in a specified period. they are intended to prevent a market free fall by permitting buy and sell orders to rebalance.
Circuit capacity, английский
Нагрузочная способность схемы; логическая нагрузочная характеристика схемы
Information, английский
- Knowledge of a particular event or situation, or knowledge communicated or received concerning a particular fact.
- Информация
- Facts about something have you any information about the treatment of sunburn? the police won’t give us any information about how the accident happened. you haven’t given me enough information about when your symptoms started. that’s a very useful piece or bit of information. (note: no plural: some information; a piece of information.)
- N информация | attr. информационный flow, structure source of ~ источник информации 1 ранее использовался в более широком значении как ‘умозаключе- ние’. 2 получение выводных данных в процессе обработки информации и/или языка и само выводное знание, умозаключение; мыслительная операция, в ходе которой человек выходит за пределы данных в тек- сте сведений и получает новую информацию. 3 аффикс, вставляемый внутрь корня слова при словообразовании или словоизменении.
- In admiralty courts, implies a clause introduced into a citation, intimating that in the event of a party cited not appearing, the court will proceed in his absence.
- Информация; данные; сведения
- Координационный комитет ин4юрмации о проектируемых и возводимых объектах строительства
- Literally that which forms within, but more adequately
- Data that has been recorded, classified, organized, related or interpreted so that meaning is apparent.
- Contextualised data providing answer to a certain question decreasing uncertainty.
- Информация, сведения
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Point locks, английский
Mechanical devices attached to points to ensure that they remain fixed for the passage of a train through them. in many countries, they are a legal requirement where passenger trains are operated. points are also electrically locked by their control system and by track circuits occupied by a train passing through them (detection).
Lifting points, английский
Marks shown on the sides of a railway vehicle to denote where it is safe to place a lifting device or jack. sometimes referred to as jacking points.
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