Over current means over current protection. Three-stage current protection refers to the current flow rate off protection (the first section), limited current flow rate off protection (the second section), fixed time overcurrent protection (the third section), a set of overcurrent protection mechanism formed by mutual cooperation. 1 section, near the short circuit 0 seconds trip, …
Thyristor, as a power switching device, is often used in high-power circuit control instead of relay because of its contactless and long service life compared with relay Thyristors control high-power devices With the industrial control towards faster speed, more power, thyristor applications are more and more. For the study of thyristor, the author thinks it …
1. Definition and function of resistance In ORDER TO CONTROL THE VOLTAGE AND current IN a CIRCUIT, that is, to reduce the voltage and limit the current, a component with a certain numerical resistance is needed. This component is called a resistor, or resistor for short. 2. Unit of resistance: ohms (ω), thousands of ohms …
