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how overload relay works

how overload relay works Overload relay protects a motor by sensing the current going to the motor. Many of these use small heaters, often bi-metallic elements that bend when warmed by the current to the motor. When the current is too high for too long, heaters open the relay contacts carrying current to the coil of The main function of the overload relay prevents the motor to get damaged by monitoring the current in the motor circuit and breaking the circuit when an electrical overload or a phase failure is detected. Since the relay is much cheaper than motors, they provide an affordable way of protecting motors. What causes an overload relay to trip Causes may include a large change in load sudden loading of the motor, misalignment, a broken drive gear, or improper motor drive settings. Power problems like low voltage or low power factor also may cause an overload condition. Other videos to watch STAR DELTA STARTER VIDEO    • star delta starter connection 3 phase...   TIMER VIDEO    • How on delay and off delay timer work...   FORWARD REVERSE WIRING DIAGRAM    • forward reverse switch wiring   FORWARD REVERSE WIRING VIDEO    • forward reverse motor control wiring|...   CONTACTOR SELFHOLDING VIDEO    • contactor self holding with push butt...   control contactor with timers    • How Timer Control Contactor|on off de...   learn the inputs of your TV    • Tv's Components|HDMI and AV Explained   do you know how to join PPR pipes    • know How to Join PPR Pipe|ELCTRECA   direct online starter here    • Direct online starter|Control ciruit|...   IN CASE YOU WANT TO PURCHASE..follow the link below push-button https://amzn.to/3qN2DpN Wireless keyboard and mouse.. https://amzn.to/2WAqOdZ Analogue time switch https://amzn.to/39FF7VR camera I use(D5300) https://amzn.to/36v3rYH mic(shotgun)Comica CVM-VM20 Professional https://amzn.to/2MtWgJ Buy contactors here https://amzn.to/39iW0p2 AI Digital Multimeter https://amzn.to/2R1Q2mp Need a float switch https://amzn.to/34TZStI contact me here [email protected] follow me on Twitter   / davidssengendo   like my Facebook page   / electerca   Visit my blog https://electrecasolutions.com/blog/ Disclaimer: ELECTRECA is a participant in the Amazon Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to www.amazon.com