Definition of Relay Terminology
... switched by the contacts. AC and DC current maximums may differ. • Maximum Switching Power The upper limit of power which can be switched by the contacts. Care should be taken not to exceed this value. • Maximum Carrying Current The maximum current which after closing or prior to opening, the contac ...
... switched by the contacts. AC and DC current maximums may differ. • Maximum Switching Power The upper limit of power which can be switched by the contacts. Care should be taken not to exceed this value. • Maximum Carrying Current The maximum current which after closing or prior to opening, the contac ...
relay problems
... capacitor out of the circuit at around 75% of full running speed. The back EMF at which the contacts close is called the “drop-out voltage” and the relay coil has a designated “continuous coil rating.” The relay coil is across terminals 2 and 5, while the relay contacts are across terminals 1 and 2. ...
... capacitor out of the circuit at around 75% of full running speed. The back EMF at which the contacts close is called the “drop-out voltage” and the relay coil has a designated “continuous coil rating.” The relay coil is across terminals 2 and 5, while the relay contacts are across terminals 1 and 2. ...
Ignition system
An ignition system is a system for igniting a fuel-air mixture. Ignition systems are well known in the field of internal combustion engines such as those used in petrol (gasoline) engines used to power the majority of motor vehicles, but they are also used in many other applications such as in oil-fired and gas-fired boilers, rocket engines, etc.The first ignition system to use an electric spark was probably Alessandro Volta's toy electric pistol from the 1780s. Virtually all petrol engines today use an electric spark for ignition.Diesel engines rely on air compression for ignition, but usually also have glowplugs that preheat the combustion chamber to allow starting of the engine in cold weather. Other engines may use a flame, or a heated tube, for ignition.