Circuit board relay manufacturers tell you the types, uses and working principles of relays, so that you who are not familiar with relays can understand.The electromagnetic relay is an important part of the electric bell and automatic control circuit device.
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The following is the wiring method, working principle, and function of the earth leakage relay organized by relay manufacturer, hoping to bring you a reference and help.
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Users should fully consider the actual needs of motor protection when selecting models, and reasonably choose protection functions and protection methods.Intelligent motor protector manufacturer tells you the basic method of relay selection.
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The product takes the microcomputer controller (MCU) as the core component, detects the current through high-precision CT, and the motor protector has the function of automatic linear correction;...
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How to measure the quality of circuit board relays？Measure with a multimeter. You can measure the resistance of the relay coil with a multimeter r×10ω to determine whether there is an open circui...
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Role of the relay:Relays use a small current to control a large current for automatic adjustment, safety protection, and conversion circuits. In order to allow more friends to understand the rela...
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If the resistance of circuit board relay is large or unstable, it means that the contact is poor; the resistance of the normally open contact and the moving point is infinite.
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Thermal relays are protective electrical appliances used for overload protection of motors or other electrical equipment and electrical circuits.
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The purpose of selecting a motor protection device is to enable the motor to give full play to its overload capacity, avoid damage, and improve the reliability of the electric drive system and th...
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In addition to the general protection function, it also has functions such as self-start, communication start and close, undercurrent, overvoltage, undervoltage, three-phase current imbalance, an...
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The working principle of relay and contactor is the same. The main difference is that the main contact of the contactor can withstand large current, while the relay contact can only withstand sma...
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Circuit breakers are generally composed of contact system, arc extinguishing system, operating mechanism, trip unit, shell and so on.
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