How Does a PTC Relay with Capacitor Work? A PTC (Positive Temperature Coefficient) relay with a capacitor is commonly used in electronic circuits to protect components and regulate the operation of devices. It operates on the principle of resistance changes with temperature, which in turn affects current flow. These types of relays are often found … Read more
Circuit breakers find extensive applications across various electrical systems and installations due to their critical role in protecting electrical circuits and equipment from damage caused by overcurrents or faults. One of the primary applications of circuit breakers is in residential, commercial, and industrial power distribution systems. They are installed at strategic points within these systems … Read more
A solenoid is an electromechanical device typically consisting of a coil of wire wound around a cylindrical core. When an electric current flows through the coil, it generates a magnetic field within the core. This magnetic field causes a movable ferromagnetic plunger or rod located inside the coil to move either towards or away from … Read more
How to test a thyristor? Testing a thyristor can be done using a digital multimeter set to the diode test mode. Start by ensuring the thyristor is disconnected from any power source. Identify the terminals: anode (A), cathode (K), and gate (G). Place the multimeter probes across the anode and cathode terminals; the multimeter should … Read more
A rectifier circuit is an electronic circuit that converts alternating current (AC) into direct current (DC). It typically consists of diodes arranged in a specific configuration to allow current flow in only one direction, effectively converting the AC input into a pulsating DC output. Rectifier circuits are fundamental in power supplies and various electronic devices … Read more
A step-down transformer is used in a half-wave rectifier primarily to match the voltage levels of the AC supply to the requirements of the rectifier circuit. In a half-wave rectifier, only one half of the AC waveform is converted into DC. The transformer steps down the higher AC voltage from the mains to a lower … Read more
What is a lock out relay ? A lockout relay, also known as a safety relay or interlock relay, is a specialized electromechanical device used in electrical control circuits to ensure safe operation and prevent hazardous conditions. Its primary purpose is to isolate or disconnect electrical power to equipment or machinery under specific conditions to … Read more
No load current in a transformer refers to the current drawn by the primary winding when the secondary winding is open or unloaded. This current flows in the primary winding due to the magnetizing flux required to establish the transformer’s core magnetic field. It represents the energy losses in the core due to hysteresis and … Read more
An electric motor is a device that converts electrical energy into mechanical energy through the interaction of magnetic fields. It typically consists of a stationary component called the stator and a rotating component called the rotor. When electric current flows through the motor’s stator windings, it generates a magnetic field that interacts with the magnetic … Read more
Sensors work by detecting and measuring physical, chemical, or biological phenomena and converting them into electrical signals that can be interpreted and processed by electronic devices. The fundamental principle behind sensor operation varies depending on the type of sensor and the phenomenon it detects. Generally, sensors utilize changes in physical properties like resistance, capacitance, voltage, … Read more