Timer delay relays are broadly classified into two types: on-delay relays and off-delay relays. DOE, which stands for “Delay On Energize,” is another name for the on-delay relay. DODE, which stands for “Delay On De-Energize,” is another name for the off-delay relay. Timer relays, like other control relays, employ a coil to regulate the functioning […]
Tag Archives: Automation/Control
02
Apr
Apr
Contactors and relays are electromechanical switches. They use the solenoid concept to work. An electric current is linked to a wire coil. The current’s magnetic field is focused in an iron pole piece. A metal armature is drawn to the electromagnet. The contacts are linked to the metal armature. When the coil is turned on, […]
02
Apr
Apr
Overload Relay is not the same as fuses or circuit breakers. Fuses and circuit breakers are used to safeguard a circuit from a direct ground or a short circuit. Overload Relay is used to prevent the motor from overheating. the motor is connected to a circuit that is protected by a 20 amp circuit breaker, […]
02
Apr
Apr
Motor control can have several different meanings. motor control can refer to anything from a simple toggle switch used to turn a motor on or off (Figure 1-1) to a very complicated system used to control many motors, with literally hundreds of sensing devices governing the circuit’s functioning. An industrial electrician should be able to […]
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