Free Expert Guides on Power Systems, Circuit Design & Electrical Troubleshooting

What is a Transducer ?Transducer DefinitionA transducer is a device that converts physical quantities into proportional electrical signals, which can be used for further control or display.Types of Transducers Types of Transducer based on Quantity to be Measured Temperature transducers (e.g. a thermocouple) Pressure transducers (e.g. a diaphragm) Displacement transducers (e.g. LVDT) Oscillator transducer Flow transducers Inductive TransducerTypes of Transducer based on the Principle of Operation

Cut the starting resistance of DC motor at electricity

What is a AC Potentiometer ?AC Potentiometer DefinitionAn AC potentiometer measures unknown voltage by balancing it with a known voltage, including both magnitude and phase.Types of AC Potentiometers Polar type Coordinate typePolar Type PotentiometerMeasures magnitude and phase angle using separate scales and components like a phase-shifting transformer.Coordinate Type PotentiometerMeasures in-phase and quadrature components of the unknown voltage using two potentiometers in one circuit.Applicat

Cut the starting resistance of DC motor at time

Cut the starting resistance of DC motor at speed

What is a Capacitance Meter?Capacitance Meter DefinitionA capacitance meter is a device used to measure the capacitance of discrete capacitors.Working PrincipleIt operates based on the proportional relationship between capacitance and a time constant.Measurement MethodCapacitance is measured using a 555 timer by calculating the time period of oscillations.Role of 555 TimerThe 555 timer acts as an astable multivibrator, with its frequency determined by the unknown capacitance (CX).Practical UsePr

Dual motor automatic switching operation control circuit

Motor power off automatic quick restart circuit

What is a Backup Relay ?Backup Relay DefinitionA backup relay is an additional relay system that operates if the main relay fails, ensuring continued protection.Function of Backup RelayThe primary function of a backup relay is to trip the circuit breaker when the main relay fails.Reasons for Main Relay FailureMain relays can fail due to mechanical defects, power supply issues, or problems in the CT/PT circuits.Importance of Backup RelayBackup relays provide an extra layer of reliability, essenti

What is an Electromagnetic Relay ?Electromagnetic Relay DefinitionAn electromagnetic relay is a switch that uses an electromagnet to mechanically operate a switching operation, essential in various electrical protection systems.Operation PrinciplesThe working of electromagnetic relays involves principles like magnitude and ratio measurement, essential for understanding their functionality in electrical systems.Types of Relays Attracted Armature type relay Induction Disc type relay Induction Cup