Twigs and Links: Twigs and Links - The branches of a tree are called its 'twigs'. For a given graph, the complementary set of branches of the tree is called the co-tree of the graph.…
CoTree and Tree in Circuit Analysis: CoTree and Tree in Circuit Analysis - A tree is a connected subgraph of a network which consists of all the nodes of the original graph but no closed…
Methods of Circuit Analysis: A division of mathematics called topology or graph theory deals with graphs of networks and provides information that helps in the formulation of network equations. In Methods of Circuit Analysis, all…
Polarised Relay: This Polarised Relay is very frequently employed where operation is required in two directions. In a d.c. Polarised Relay contact A is closed when current in the operating winding flows in one direction…
Time Delay Circuit: Several choices are available in the selection of suitable circuits for obtaining Time Delay Circuit depending on the magnitude of the time delay required. Delays of the order of microseconds can be…
Level Detector: Schmitt trigger or level detector circuits are very often employed in static relay circuits as a final stage before the trip coil circuit of the circuit breaker. The name level detector is derived…
Different Types of Relays Elements: The Important Different Types of Relays Elements or also called Electromagnetic Types are Induction Disc Relay Induction-cup Relays Moving Coil Relays Hinged Armature Relays Polarized Moving Iron Relays Moving Iron…
Influence of Static Protective Relays: Influence of Static Protective Relays on the associated equipment like current transformers, voltage transformers, etc,. Let us discuss one by one. Current Transformers: Burdens on current transformers have a great…
Switching Transistor: The characteristics of modern Switching Transistor are specially suited to the functional requirements mentioned already. These along with the other Semiconductor production of static relays. The properties particularly useful in the realisation of…
Characteristics of Protective Relay: Characteristics of Protective Relay elements using different operating principles. These principles and design criteria determine how well the basic function is performed and how in practice it deviates from the ideal.…
