Recent questions tagged coupler

Description : Why is a shaft coupler used between turbine and generator ?

Last Answer : For easy transmission torque or rotation angle and can also use for the protection of the safety devices shaft cannot be separated from the shaft during motion coupling will be damaged first so as avoid to the damaged of motor or other transmission parts.

Description : Write working of opto coupler as an isolator.

Last Answer : Optocoupler is as shown in fig. it consist of LED as an light source and phototransistor act as light detector.  When input pulse is applied LED turns ON.Light emitted by LED focused on CB ... starts flowing.As input pulse reduces to zero LED turns OFF collector current becomes zero.