Protective Relay Working Principle A protective relay is used to protect the device once the fault is detected within a system. Once the fault is detected, the fault location is found and then provides the tripping signal to the circuit breaker or CB. These relays work on the two principles ...
The main function of this is that it carries the current to various parts of the circuit. There are classified into contact springs, axillary contacts, and power contacts. Where each of the contacts has its own functions, which is explained in principle of operation of the contactor. block-di...
Circuit and Working Principle of Autotransformer Starter The circuit diagram of an autotransformer starter for starting a 3-phase induction motor is shown in the figure. The autotransformer starter can be used for starting both star and delta connected 3-phase induction motors. In this method, the ...
Finder intermediate relay is used in relay protection and automatic control system to increase the number and capacity of contacts. It is used to transmit intermediate signals in the control circuit. The structure and principle of finder intermediate relay are basically the same as that of AC conta...
The above article provides an overview of a Cooling Tower. The detailedclassification of cooling towersis conversed along with the working principle. Besides this, we also discussed various applications, advantages, and disadvantages. Here is a question for you, what is the main function of a coo...
Similarly, electronic zero-speed switches are also direct-coupled and also speed-indicating devices that control a set of contacts by using a relay or an electronic circuit. Zero Speed Switch Working Principle A zero-speed switch includes a sensor & a controller. So the working principle of this...
Working Principle of MOSFET The main principle of the MOSFET device is to be able to control the voltage and current flow between the source and drain terminals. It works almost like a switch and the functionality of the device is based on the MOS capacitor. The MOS capacitor is the main ...