The actuating impedance in the relay is the function of distance in a distance protection relay. This impedance or corresponding distance is called the reach of relay.Power system protection relays can be categorized into different types of relays....
The analysis of these faults is required for selecting the rupturing capacity of the circuit breakers, choosing set-phase relays and other protective switchgear. These faults are analyzed on per phase basis using bus impedance matrix or Thevenins’s theorem. Unsymmetrical Faults The most common fault...
Relays are generally employed where it is required to regulate a circuit through an individual minimal power signal or used where multiple circuits need to be regulated through a single signal. The initial utilization of relays was in the extended length of telegraph circuits like signal repeaters a...
The choice of earthing system in both low voltage and medium voltage networksdepends on the type of installation as well as the type of network. It is also influenced by the type of loads and service continuity required. The Main objectives of an earthing system are Provide an alternative path...
relay switches to an energized position. An internal coil generates a magnetic force, which holds the energized position. When power is turned off, the relay returns to the unenergized position. Because of this, non-latching relays – also referred to as monostable relays – are useful in ...
Controls Necessary Signals and Communication Mechanisms:The controller plays the role of a bridge, transmitting signals between the driver and the vehicle’s intricate system and back again. For example, it relays crucial data such as the charge level, battery performance, the vehicle’s motion, an...
Solid State Relays (SSRs) SSRs can be used to control both AC and DC. They have sensors that respond to the control signal and switch power accordingly. It mostly offers a clean and bounceless operation. SSRs are widely used in a variety of applications that require precise control over ...
Thermal Overload Relays POWERED WIRE ROPE HOISTS Steel wire ropes are more suitable for very heavy lifting than chains, have a higher strength to weight ratio and can lift up to three times the load. Steel wire ropes are made up of multiple steel wires wound into cables, which are then ...
CPU module has a central processor, ROM & RAM. ROM memory includes an operating system, drivers, and application programs. RAM is used to store programs and data. CPU is the brain of PLC with anoctalor hexagonal microprocessor. Being a microprocessor-based CPU, it replaces timers, relays, ...
by turning ON & OFF a load at regular intervals and also they create a flashing effect. These are either multi-function or single-function devices. These kinds of time delay relays are frequently used in applications wherever it is necessary to cycle power to an electrical system or a device...